Telescoping Boom Lift

The telescoping system will allow varying the extension of the boom of a crane as required by the work to be done, by linear displacement of the inner sections with respect to the fixed section.

Telescopic system

Traditionally, the telescoping system consisted of as many extension cylinders as the displaceable sections had the boom of the telescopic crane. This gave the crane great flexibility of movements with the counterpart of excessively increasing the weight of the pen itself.

The need for weight reduction gave way to the tendency to design a telescoping system with a single hydraulic cylinder.

This system is based on an “inverted” hydraulic cylinder, which is embedded in the piston rod face to the fixed section of the boom, allowing to vary the length of the boom thanks to auxiliary elements such as bolts and springs, in subsequent sections, it will be accurately detailed the operation of this system.

The variation of the length of the crane treated in this project ranges from an extension of 11 meters, with the boom collected, to its extended position, whose maximum boom length is 38 meters.

This system offers the advantage of allowing a wide variety of configurations in terms of boom extension.

What is an articulated boom lift?

Advantage:

The actuating element, the hydraulic cylinder, only works to extend or pick up the boom. At the moment the crane manipulates any type of load, the hydraulic cylinder is picked up. This produces a greater lightness inside the structure and therefore a lower risk of breakage of internal parts which causes great expenses in their repairs.

  • Saving of material, such as pulleys, cables, and drums necessary for cable telescoping.
  • Free work of elements inside the pen, this is one of the most important factors of the telescoping system.

Straight boom lift

What Is a Straight Telescopic Boom Lift?

Straight telescopic boom lifts, or stick booms, feature a single arm. They’re a common alternative to articulated booms, which can be more difficult to use because of their multiple sections. Stick booms, in comparison, are easier to control because their boom only moves in one direction.

Stick booms have the greatest horizontal reach of all aerial platforms. Because of their high reach, straight telescopic booms have a wider base than other lifts. Base widths are between eight to 10 feet, depending on the model of your straight telescopic boom rental.

Telescopic boom lift rentals are available with various tire options to meet the needs of different job sites. Tire options include rough-terrain tires, which allow your equipment to travel across gravel and shale. Other accessories for our straight telescopic boom rentals include:

  • Light kit
  • Welder ready package
  • Tool tray
  • Tow kit

Straight boom lift rental

Why Rent a Straight Telescopic Boom Lift?

Renting a telescopic boom lift is becoming a more common choice for companies and contractors because of their many versatile uses. Uses for telescopic boom rentals include:

  • Building construction, maintenance or cleaning
  • Electrical, lighting or sign repairs
  • Inspecting bridges
  • Maintaining buildings

Reasons for renting one of these lifts instead of buying include:

  • Temporary projects that require reaching extreme heights
  • A limited number of jobs that require working in tight spaces
  • Seasonal tasks where a telescopic boom lift is needed

Some small and large businesses also choose to rent because they can lower their maintenance and storage costs. Renting is a smart decision when you rarely use a straight telescopic boom lift — for example, if you only need it seasonally or for a single project.

Articulated boom lift

Parts of the telescopic system:

Telescoping cylinder

It treats of a hydraulic cylinder of a double effect of 11 meters of length and 10 meters of career.

The protruding end of the rod is welded to the boom at the rear of section 1 and it is the cylinder liner that produces the necessary displacement to be able to extend or pick up the boom.

It consists of a piston attached to the other end of the rod, which together with the sealing elements, make it possible to guarantee the pressure difference as well as providing a contact surface through which to produce enough force to move the system.

The feeding of the cylinder will be done through ducts located inside the stem so that one duct is in the part between the end of the piston and the jacket and the other duct is between the beginning of the piston and the body of telescoping.

The justification for this type of system feeding lies in the ease of having fixed ducts.

If the feeding was done through ducts connected to the jacket on the outside, there would be a need to provide the system with an element that allows the length of the ducts to be varied, since the sleeve is in continuous movement.

Sealing elements

Piston guides: It is an element used to avoid the contact between metals produced between the piston and the inner part of the cylinder liner. In addition, this element is responsible for absorbing the stress produced by radial loads.

Piston joints: They are responsible for ensuring the pressure difference.

Scrapers: They are responsible for excluding dirt, foreign particles and dust from the system. They avoid scratching as well as prolonging the life of the joints.

Telescoping body

The telescoped body is an element welded to the hydraulic cylinder liner, whose function is to hold the clamps and hydraulic cylinders of short stroke.

It is made of F-114 steel and has dimensions of 360 millimeters in height, 350 millimeters in width and 200 millimeters in thickness.

It contains a hole through which the stem will pass, which serves as a guide to travel. The housing of the cylinders is given by two vertical holes in the top and one horizontal on the side of the piece.

These holes have two different diameters forming a step. This will allow connecting the short stroke hydraulic cylinders to the telescoping body using M7 screws.

This piece has some friction sheets that will allow it to easily slide between the sections.

Unlocking clamps

Elements that will be fixed to the hydraulic cylinders of vertical displacement so that they will move in solidarity with them, in order to be able to hook the lower part of the anchor bolt to later, make the opposite route to move the bolt and thus leave the section free that you want to telescope.

Short stroke hydraulic cylinders

There will be four double-effect cylinders placed inside the telescoping body.

Two of them will be located at the top of this and will perform a vertical displacement, allowing the movement of the dive pliers.

The effort that must be able to overcome in the return movement must be greater than the resistant force that the spring of the anchor bolt performs due to the fact of being compressed.

The other two cylinders will be located on the sides of the telescoping body and will perform a horizontal displacement. They will be attached to the drag bolts, which will move in solidarity with the movement of these cylinders.

Bolts

Two types of bolts will be distinguished:

Drag pins: They will make a horizontal movement to enter inside some cavities arranged in the rear covers of the sections and will be responsible for dragging them. In this way, the desired displacement will be achieved.

Anchor bolts: These bolts allow anchoring between two consecutive sections, preventing any movement between them. They will be housed in the holes made in the back cover of each section.

These elements are made up of two parts:

The upper body, whose design allows to hold, on the one hand, the spring that will produce the necessary force to fix it in its position and, on the other, the necessary diameter to produce the effort of supporting both sections. This part has a thread on its lower end that will allow the assembly with the lower body.

The lower body is designed so that there is a rod finished in a larger diameter from where the clips can be fitted to produce the displacement. It will have another projection that will act as a stop to prevent the bolt from leaving its position. At its upper end, it consists of a threaded projection where it can be assembled with the upper body.

Springs

These elements perform a vital function in the operation of the crane since they are responsible for keeping the bolts fixed in their position thus ensuring a perfect interlocking operation.

They are compression springs so that their operation is based on making the effort in the opposite direction from where the load is received.

Therefore, its function is based on producing an effort in the opposite direction to the weight of the bolt and of the divestment pliers. In this way, when the clamps release the bolt, the spring will fix it in position.

It is located between the inner part of the rear cover and the shoulder that has the upper body of the bolt. In this way, when the tweezers pull the bolt to unlock it, the shoulder produces a compression force to the spring, which rests on the bottom of the back cover.

Hydraulic boom lift

What is the most versatile machine for construction?

Then you’re in need of a piece of equipment with a hydraulic boom and a platform at the end to raise and lower people. Engine-powered boom lifts, give you the reach and power necessary for the best outdoor performance.

Boom lift specifications vary widely, so it’s important to understand the needs of a particular job before spacing out your equipment.

Both articulating boom lifts and telescopic boom lifts can tackle tough jobs. A telescopic boom lets you reach farther with more capacity, putting you right where you need to be as simple and efficient as possible. But, if the job requires you to get up and over objects, you need an articulating boom lift.

Hydraulic boom lift

Articulating boom platform

Articulating booms are aerial work platforms with multiple boom sections that hinge — or “articulate” — allowing the operator to gain access to work areas over obstacles and barriers. These versatile machines are perfect for tight access and hard-to-reach areas.

Articulating Boom Lift Details:

  • Great for confined work areas.
  • Very maneuverable – good for moving over obstacles.
  • Good for working indoors.
  • Two functioning joints add working length to this vehicle.
  • Can be positioned in a variety of ways.
Articulating boom platform

Platform boom lift

A platform boom is a forklift with superpowers. If you cross-bred a small crane, with a forklift, you would get a telescopic boom. These machines look a lot like a forklift, but they have booms attached to them that can extend out and up. Platform booms are useful to have if you are in an industry where you work on roofs, or need materials to be lifted to high positions like when you are stacking items.

Platform Boom Details:

  • Capable of performing many jobs.
  • Good for smaller job sites.
  • Ideal for working from a distance.
  • Great for increasing your speed and rate of production.
  • Good for working on rough terrain.
Platform boom lift

What is a boom lift?

What is a boom lift?

A boom lift is essentially a type of aerial work platform used by personnel to reach high places. A basic boom lift consists of a platform, or bucket, with a long, jointed crane run by a hydraulic lift system and attached to a grounded base.

What is an articulated boom lift?

Articulating booms are aerial work platforms with multiple boom sections that hinge — or “articulate” — allowing the operator to gain access to work areas over obstacles and barriers. These versatile machines are perfect for tight access and hard-to-reach areas.
Through a combination of simple machines, mobile cranes are able to gain mechanical advantage to lift heavy objects.

How much does it cost to rent a boom lift for a day?

A 30-foot articulating electric boom lift rents for about $250 per day, $1,000 per week and more than $2,000 for four weeks. A 45-foot telescopic 4-wheel drive model costs about $300 per day, $1,100 per week and $2,500 for four weeks.

Is a boom lift an aerial lift?

a scissor lift is a mobile scaffold for which the platform only moves vertically. An aerial lift is any vehicle-mounted work platform that can move vertically and/or horizontally.

Are boom lifts safe?

In rare cases, boom lifts can tip over, much like scissor lifts, but with a greater reach, the boom lift could cause catastrophic damage. To be safe, make sure the area is completely clear.

What is the difference between a scissor lift and a boom lift?

There are two distinct types of access platforms, usually called scissor lifts and boom lifts (or sometimes cherry pickers). The difference between the two being that a scissor lift can usually only move vertically, whereas a boom lift has an outreach, to work above areas not accessible from directly below.

Can you use a boom lift in the rain?

The electric scissor lift platform is not allowed to use in open area in rainy day. If it was raining when using a mobile scissor lift platform outdoor, you should do the protection of pumping stations and electrical lines in advance. Negligence of detail will cause damage to the hydraulic platform lift.

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Biggest Crane

Giant Crane: Worldwide record of telescopic cranes, lifting of electric turbines, bridges, metal structures, LIEBHERR 11200

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Telescopic Crane Boom

Telescopic Crane Boom: Heavy cranes, such as telescopic cranes, can be mounted on top of a truck and then driven to those places where goods and loads need to be moved.

Telescopic Crane Boom
Telescopic Crane Boom

Telescopic crane parts

The main difference between a telescopic crane and other conventional cranes is that the former has a hollow boom that contains several tubes mounted on one side and another.

A hydraulic mechanism allows the movement of elongation and refraction of the beam.

Supporting chassis

Truck in charge of transporting the crane depends on each model. Support of the crane, the cabin, the pen; transports all the weight, in the van placed the stabilizers and the superstructure, thus relieving the efforts.

PARTS AND COMPONENTS: telescopic crane, chassis, cabin, mobile cranes, industrial, construction,

Orientation crown

To maneuver the load, the boom must be able to move to the right and to the left, as well as up and down.

Beneath the operator’s cab is a Rotex gear on a rotating platform bearing that rotates at 2 revolutions per minute (rpm).

It is powered by a bidirectional hydraulic motor mounted in the cab and housed in a metal cover to prevent injury.

The rotation is controlled by a pedal hydraulic in the cabin.

Telescopic Boom

The most recognizable part of any crane is the boom. This is the steel arm of the crane that holds the load.

Rising just behind the operator’s cab, the boom is the essential piece of a crane, allowing the machine to lift loads to several dozen feet. Most hydraulic truck cranes have a boom that has several telescopic sections

Some arms are equipped with a feather, which is the lattice structure attached to the end of the arm. As the load is lifted, the sections extend to the desired height.

Control cabin

All this equipment is controlled by the operator inside the cabin, which is located at the top of the deck.

Crane operators use various control mechanisms to raise and lower the boom, turn the boom and boom, wind and roll the winch and control other peripheral equipment.

The hydraulic crane has two basic types of controls to maneuver a load:

Joysticks: There are two joysticks in the cabin. One controls the movement from left to right of the arm and the other controls the movement back and forth.

Pedals: These pedals are responsible for retracting and extending the telescopic sections of the boom. They also control the amount of pressure generated by the pump.

PARTS AND COMPONENTS: telescopic crane, chassis, cabin, mobile cranes, industrial, construction,

Lifting equipment

The joysticks and pedals are connected to hydraulic hoses that connect several hydraulic cylinders to the spool valves.

The spool valve is connected to the hydraulic pump through a third hose that is placed between the two hoses that go from the spool valve to the hydraulic piston.

When a joystick is pushed in one direction, the valve closes one of the hydraulic hoses that lead to the ram and opens the other.

The way the joystick is pushed determines whether the piston in the hydraulic ram slides in or out.

The reel valve system allows the crane operator to control the hydraulic pistons.

Crane stabilizer

Hydraulic truck cranes are used to lift heavy loads at high altitudes, and it is important that the truck is completely stable during the lifting operation.

The tires do not offer the necessary stability, so the truck uses stabilizers that act as scales to prevent the crane from leaning too far to one side or the other.

The stabilizers use the hydraulic system to lift the entire truck, the tires and everything from the ground.

The stabilizers are formed by the beam, which is the leg of the stabilizer, and the pad, which is the foot.

Sometimes, “floats” are placed under the platform to dissipate the strength of the crane and the load on the concrete or pavement. Floats are usually wooden boards that line up to create a base that is larger than the pad.

It consists of four extensible feet with its respective hydraulic system. The stabilizers are only one mechanism used to balance the crane during lifting operations.

Crane Counterweight

There are also removable counterweights that can be placed on the back of the crane at the bottom of the cab.

These counterweights prevent the crane from tilting forward during the operation.

The amount of counterweight needed for a particular lift is determined by the weight of the load, the radius of the boom and the angle of the boom during the operation.

Counterweights are only used during lifts; They have to be removed before the truck can be driven.

Steel cable lines

Reinforced steel cable lines run from a winch just behind the operator’s cab, extending up and over the boom and arm.

The lines go up the pen and adhere to a goalball; It keeps the lines taut when there is no load on the hook.

Who makes Grove cranes?

Grove was founded in 1947 and is one of the world’s leading producers of mobile hydraulic cranes with manufacturing facilities in Shady Grove, Pennsylvania, and Wilhelmshaven, Germany.

How do mobile cranes work?

Through a combination of simple machines, mobile cranes are able to gain mechanical advantage to lift heavy objects. The mast (the tall vertical part of a crane) is supported by a large, heavy base, which helps offset the weight the crane holds at higher heights.

At the top of the mast, there is a slewing unit, consisting of gear and motor, which allows the crane to rotate. The slewing unit also contains the jib (a long horizontal working arm) that uses a trolley to help carry the load, as well as a shorter machinery arm that contains the crane’s motor, along with large concrete counterweights to help balance the load. In addition to these simple machines, mobile cranes also utilize a pulley system, which helps the crane lift heavier loads with minimal force.

What is a Knuckle Boom Crane?

Knuckle boom cranes are an amazing piece of engineering technology. Also called a loader crane, articulating crane, and a picker crane, the knuckle boom crane has changed the way people load and offload in a variety of industries. 
It looks similar to the traditional straight boom crane, but the knuckle boom crane has two booms; the main boom and an outer boom. These two booms have a knuckle between them, which allows more options for the loader crane operator.

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Knuckle Boom Truck

The boom of the knuckle crane is a device designed to lift and distribute loads suspended from a hook. They are equipped with a means of propulsion able to produce the necessary movement to enable their movement on public roads and land.

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Knuckle Boom Truck

The boom knuckle truck is a device designed to lift and distribute loads suspended from a hook.

They are equipped with a means of propulsion able to produce the necessary movement to enable their movement on public roads and land.

Knuckle Boom Truck

Truck mounted knuckle boom cranes

Crane truck design

In the case of the self-propelled knuckle boom truck, the unit can be divided into two distinct parts: supporting chassis and superstructure.

Crane carrier

The chassis is a metallic structure on which, in addition to the propulsion, steering and stabilization systems, the remaining components are fixed.

Knuckle Boom Truck: hydraulic, design, manufacture, truck crane, operation, sale, data sheet, self-propelled, cranes, pulleys. Telescoping boom lift

The superstructure

It is constituted by a base platform on the orientation crown that joins the chassis and allows the 360º rotation, which supports the telescopic boom, lifting equipment, control cabin, and counterweight if necessary.

Support elements

are those through which efforts are transmitted to the ground: caterpillars, wheels, and stabilizers or auxiliary supports that have mobile cranes on wheels.

They are constituted by hydraulic jacks mounted on extendable arms, on which the machine is fully rested, which allows to increase the surface of the lift polygon and improve the distribution of loads on the ground.

materials

Observing the catalogs of the cranes of different manufacturers it is known that telescopic booms are manufactured with high strength steel

Telescopic knuckle boom crane

The knuckle boom crane has more than one cylinder inside. It usually has a rectangular shape, and its components are made of high durability and strength steel.

It is the element responsible for holding and varying the position of the elements that will manipulate the load.

It is the most requested component because it is responsible for resisting most of the efforts produced by the loads that are handled. It consists of four sections, with a length of 11 meters each, assembled inside each other in such a way that they can slide to vary the configuration of necessary length.

Inside it houses all the elements required to vary its extension. The dimensions of the profiles of the boom are determined by the bending, torsion and compression efforts to which they are subjected and also by the mechanical properties of the material with which they are manufactured.

Telescopic boom lift

Type of profile:

Analyzing the current market, it can be observed that there is a tendency to stop using pens with rectangular section profiles to use profiles with more rounded sections.

It is known that the profile that is tried to obtain on the part of the manufacturers of cranes is a profile with the bottom oval.

The fact that some manufacturers do not yet use an oval profile is merely a matter of patents since Liebherr holds the patent for this type of profile.

Even so, the rest of the manufacturer’s design profiles similar to the oval, respecting the rights of Liebherr.

The oval profile offers resistance to bending forces very similar to those that the rectangular profile can resist.

As for the torsional stress, the oval is more resistant than the rectangular one.

telescopic boom lift

Telescoping boom lift

Stretches of the telescopic boom:

The dimensions of the sections start from the results obtained in the calculation of the annex, being a rectangular profile whose minimum dimensions are: base 600 mm, height 800 mm and a thickness of 5 mm.

The profile has a rectangular geometric shape with rounded corners, as this will make it easier to assemble the different sections of the boom. Said profile contains holes in the upper part of each section of the boom that will allow introducing a bolt that will fix one section with another.

Crane manufacturers

Fabrication process:

The manufacture of the profiles is based on a rectangular steel sheet S1100 QL with the previously calculated dimensions and a thickness of 5 mm.

The calculation of the dimensions of the sheet is made taking into account the perimeter of the section to be made. The realization of the sections starts in a laser machine.

The first process in the cutting operation is to make the holes that the section to be manufactured has. Next, the marking of the areas where the force must be applied to produce the section bending is made and finally, the edges are cut with the necessary angle to be able to assemble it later.

When performing the cutting and marking operations, the sheet passes to another work station where the bending is done.

Folding is the most important operation in pen manufacturing. This process will provide greater or lesser mechanical resistance depending on the quality of execution.

In order to carry out the bending, hydraulic presses of a length such as to make the section of the pen in one piece are available; In particular cases, such as very long pens, several sections of the same section can be made and subsequently welded, thus achieving the desired length.

When the profiles have gone through the phases of cutting, marking and bending, they are prepared to be welded and assembled with the different parts that make up the boom of the crane.

When this process has been completed, the surface treatment and painting of the pieces is carried out to finally assemble all the components.

knuckle boom lift truck

Telescopic crane boom mechanism

The material used in the sections of the boom is a steel of high mechanical resistance.

This type of material is used due to the great efforts to which the pen is subjected from:

  • The flexion produced when handling the load located at a certain distance from the anchor of the boom.
  • The torsional stress that causes the acceleration of the load located at a certain distance, as well as the torsion produced by the load when the wind impinges on it.

This type of material will allow reducing the thickness of the sheet used in the manufacture of the profiles, thus reducing the weight of the boom considerably. The main elements of the crane are listed below:

Roller skates

The skids are elements that allow the sliding of the inner sections, reducing friction and providing a contact surface that allows distributing better the efforts produced by the manipulated loads.

They are placed next to the rounded corners of the profile. The skates are ideal elements to work on hard metal surfaces.

Each section has 8 runners, distributed so that there are four skates on the back of the boom and four skates occupying the front of it.

Its geometry is based on the section of the gap that is between one section and another, being 20 mm thick. They have a step that will serve to fix the skates on both the back and front that has the pen.

The fixing of the runners will be done by M16 screws. Both the skates and the covers have holes through which the screws that will join them will pass.

At the back of the boom, the skates will be attached to the inner profile, thus moving along the section that you wish to extend, while in the front the skate will be fixed to the outer section so that it will remain fixed.

Material of the skates

Polyamide skates will be used, which provides the following characteristics:

They do not need lubrication: The material incorporates solid lubricants linked to the molecular structure, which guarantees the presence of lubricant during the whole useful life of the piece, for this reason, they are ideal for areas of difficult access or where lubrication is problematic.

Easy and smooth movement: Since they present null stick-slip effect (the stick-slip effect or also known as the oscillation phenomenon due to relaxation, it is the spontaneous spasmodic movement that can occur while two objects slide over each other), which means that the start of the movement is smooth and controlled. (This is a fundamental characteristic for machinery whose objective is to elevate or transport pieces).

Excellent resistance to wear: Even without lubrication they last much longer than other substitute products.

Good load capacity: By presenting a large contact surface, the load is distributed more evenly.

Resistant to corrosion: they are ideal for external use, even in marine environments. In addition, the internal lubricant that they incorporate serves to protect the area of ​​the pen by which they slide.

Rear covers

At the rear ends of the profiles, 200 mm thick plugs are welded whose function is to house the anchor bolts between sections in the upper part that will allow the union between the sections of the boom, besides locating two holes, one in each lateral from where the telescoping system will drag the sections to carry out the total or partial extension of the boom.

It is possible to differentiate the central hole, in the upper part, where the anchor bolt will be located, in addition to the lateral holes in the square section that will allow accommodating the drag bolts of the section.

Its internal geometry contains the same shape as the telescoping body, in order to fit perfectly in addition to providing a support base.

There is a vacuum of material between the external and internal top of the lid in order to be able to assemble both the upper anchor bolt and a spring that will be responsible for preventing the bolt from being dislodged from its operating position. These components will be explained in later chapters.

Front covers

These elements will allow fixing the skids and the covers of the skids by means of screws, thus allowing a good subjection.

Skate housings

In order to fix the skids of the front part, there are covers manufactured in steel 960 QL, see annex 3.26, in which there are holes placed in such a way that in their assembly they are concentric with the holes that the skids carry.

In this way, you can proceed to the assembly of the skids and covers by placing M16 screws. Four casings are available, corresponding to the number of skids that must be placed on the front, two on the top and two on the bottom.

It has been decided to introduce these elements for reasons of resistance since it is not considered convenient to perform the joining of the skids by means of screws directly on it.

Feather head

This element is located at the front end of the telescopic boom, welded to the last section, and which is responsible for holding the pulleys. Its geometry is designed so that the cable can not touch the pen at the time of tilting, so it has axes that separate both elements.

knuckle boom lift truck

Assembly of the knuckle boom

The union of the front and rear covers will be done by means of welding to the profiles. However, the union of the skids and the housings for the skates with the covers will be carried out through screws.

Crane boom design

Design of a telescopic boom:

The design process:

  • The design is defined as the previous process of mental configuration, “pre-figuration”, in the search for a solution in any field.
  • The first decision that must be taken when designing a new production system is the design of the product that is going to be manufactured. The development of new products has become a key factor to achieve business success.
  • In recent years there has been growing concern about the process of design and development of new products. And more specifically by reducing the time spent designing and developing new products.
  • Therefore, developing new products in a short time, so that they are available as soon as possible in the market, becomes one of the main concerns of today’s companies.
  • The importance given to the time of development of new products, as a factor of competitive advantage, has motivated that one of the main concerns of those in charge of managing this process is to find a series of tools that help reduce this time.
  • This process involves the realization of a complex set of activities, in which most of the functional areas of the organization must intervene.

Telescopic boom crane design

Design stage

Phases of the design process: Generally this development process is usually divided into five phases or stages.

Opportunities identification: Information is obtained on the needs and demands of the market, identifying existing opportunities, possible movements, and reactions of the competition, technical possibilities and manufacturing requirements. During this phase the design of the concept is fixed, the target markets are selected, the level of performance, the necessary resources and the foreseeable financial impact of the new product.

Evaluation and selection: those ideas are selected that present greater possibilities of success. This evaluation process involves an analysis of the viability of the product from different points of view.

Development and engineering of the product and the process: In this third phase, most of the detailed design and product development activities are carried out, as well as the production processes necessary for manufacturing and subsequent market launch.

Tests and evaluation: In this part, a particular behavior or set of objectives is measured before starting production.

Start of production: if the evaluation carried out in the previous phase is favorable, the product passes to the fifth phase in which large-scale manufacturing begins; the market launch of the new product, its initial distribution and operations to support it.

Crane structure design

This information is combined to establish the architecture of the new product.

The described development process is carried out in an iterative way until reaching the design that best suits the consumer’s needs. In each iteration, you learn about the problem to solve and the existing alternatives until the final design is converged and the specifications detailed initially are completed.

For the present project, the following design process will be followed:

  • Approximate dimensions
  • Predimensioning
  • Efforts
  • Tensions and deformations
  • Testing
  • Final resizing
  • building

What does a boom truck do?

What does a boom truck do?

A boom truck (commercial truck-mounted crane) is defined as a crane consisting of a rotating superstructure (center post or turntable), a fixed or telescopic boom, operating machinery, and one or more operator’s stations mounted on a frame attached to a commercial truck chassis with a payload hauling capability whose power source powers the crane. Its function is to lift, lower, and swing loads at various radii, requiring the use of outriggers/stabilizers.

What is the difference between a boom truck and a crane?

The main difference between a boom lift vs crane is that boom lifts are used for lifting workers and their equipment to work sites at height. Boom cranes don’t have a bucket platform for holding workers. They are only used for lifting and moving extremely heavy loads.

What is a boom truck used for? How can boom trucks be used?

The first aspect of a boom truck is a hydraulic crane, which allows workers to lift heavy and sometimes unconventionally shaped items from floor to roof. A flatbed provides the second aspect of the boom truck, and space for items to be transported to and from different areas of a site.

Why choose a boom lift?

Aerial lift equipment is used in a wide range of industries on job sites and in facilities around the world. Boom lifts, in particular, are an ideal choice for applications where you need to lift workers, tools and materials extended heights to get the job done.

What is the difference between an articulating boom and a telescopic boom?

Two different types of boom lifts dominate the market today: articulating and telescopic. Choosing the right boom lift for your project will make all the difference in how efficiently, safely and profitably you complete the task at hand.
Articulating booms are aerial work platforms with multiple boom sections that hinge — or “articulate” — allowing the operator to gain access to work areas over obstacles and barriers.
Telescopic booms are aerial work platforms with boom sections that extend telescopically. They are also commonly known as “stick” booms because of their straight appearance. Telescopic booms offer greater horizontal outreach than any other type of aerial platform — ideal for areas with limited access in construction, industrial, entertainment, road building, bridge work, painting and inspection applications.

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Mobile Crane Parts

Mobile Crane Parts: How does it work? types of industrial cranes, mobile, mobile, fixed, hoist, pulleys, hook. Chassis camion, Crane rotating mechanism

Knuckle Boom Crane

Knuckle boom cranes are an amazing piece of engineering technology. Also called a loader crane, articulating crane, and a picker crane, the knuckle boom crane has changed the way people load and offload in a variety of industries.

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Knuckle Boom Crane

Knuckle Boom Crane: The articulated hydraulic crane is one of the most versatile products when a crane is required. Cargo cranes help to load and unload trucks and other vehicles.

Truck-mounted cranes impress thanks to their easy handling and their high level of cost efficiency.

Several pieces of equipment (winch, rotor, clamp, pallet) extend the range of application of the loading crane. The most important industries are construction, transport logistics, emergency services, local authorities, waste management, mining and inspection, maintenance, cleaning of structures, buildings and large machines, as well as leasing and business rent.

Knuckle Boom Crane

Knuckle Boom Crane

Hydraulic articulating cranes

Articulating crane

Characteristics of the articulated crane: Steps to determine if an articulated crane is suitable for its application.

  • Not all lifting jobs are the same, so articulated cranes, some of the most versatile cranes available, are an increasingly useful option for customers who need lifting applications.
  • Often companies overlook these cranes in favor of telescopic cranes and other material handling solutions that are inefficient, inconvenient or simply downright dangerous.
  • A leading manufacturer of truck cranes, truck service, hydraulic cranes, manipulators tires and air compressors, provides the following guidance for articulated cranes.
  • With the wide variety of models available and applications between industries, the articulated crane can be the right tool to meet almost any customer’s lifting needs.

Knuckle boom crane truck

Thanks to its crane’s skills and efficiency, the joint handling of unique materials are often used in the construction, mining, railways, tires, energy, waste and utility industries.

With operations above and below ground, both indoors and outdoors, the needs of the utility industry better epitomize the benefits of an articulated crane.

Knuckle Boom Crane

Knuckle Boom Crane

Crane industries

Uses and applications:

electric companies

They have to transport and place heavy transformers, and cranes joint can serve both functions.

natural gas companies

they use articulated cranes to collect and place pipes and tanks while facilitating navigation around obstacles and avoiding obstructions in residential neighborhoods.

Water and sewage

The water departments use articulated cranes to place vaults in the ground or steel plates on roads during the repair of water lines while avoiding obstacles such as traffic lights and power lines.

Mining

The mining market in Latin America has also experienced significant growth in the use of articulated cranes thanks to its ability to handle materials and lift heavy loads in tight spaces.

In these areas with height limitations, it is necessary to take into account that an articulated crane is more efficient since it can raise its maximum rating in a horizontal position.

Industry

Regardless of the industry, however, it is worth considering an articulated crane for any lifting work that requires a range of fewer than 80 feet that would benefit from added agility and payload delivery.

Telescopic crane

Comparison with telescopic cranes:

Apart from the obvious difference between the straight arm of the telescopic crane and the segmented articulated boom of an articulated crane, the two differ in the load carrying capacity and the lifting capacity range.

  • The telescopic cranes are designed to be stored on the bed of the truck, while the articulated cranes mounted on trucks can be folded firmly in one position, leaving plenty of space for the payload bed.
  • A vehicle equipped with an articulated crane therefore also transports the payload from point A to point B.
  • This eliminates the cost associated with a second transport vehicle that is often required when using other lifting solutions.
  • For operators familiar with telescopic cranes, the lack of a winch and the upper seat may seem inconvenient, but in reality, these attributes have their advantages.
  • The boom of an articulated crane is able to navigate directly to the payload without a winch, a capacity that eliminates the need for a winch while offering greater versatility.
  • However, if an application requires or would benefit from a winch – such as accuracy of placing a load of 10 feet or more underground – an articulated crane may be equipped with one of these.
  • In the same way, most articulated cranes are now equipped and operated using a radio remote control, which provides the operator with greater visibility and ensures greater safety for the operator.
  • And while the articulation of the cranes of the past did not have a comparable reach to their telescopic relatives, the current IMT models have a maximum horizontal reach of 79 feet.

Crane specification

Technical specifications:

  • Many IMT articulated cranes have a power system plus dual arm link (DL), which is very suitable for long stretches and lifting in high positions with equipment (such as fly-jib and capstan) demanding.
  • In addition, the DL system provides precise and regular movements throughout the work area while offering the best lifting capabilities under almost any working condition.
  • Another common feature is “overdoing,” which means that the working area between the main arm and the second arm is not less than 195 degrees.
  • Overdoing offers greater flexibility when working through narrow passages and under raised obstacles, the ability to lift maximum loads in all boom positions, and a lower overall height when the crane is stored in the truck body.
  • A key safety feature available on all models of IMT articulated cranes is the rated capacity of the limiter (RCL).
  • The mid-range and larger cranes are available with the new generation RCL 5300.
  • The RCL system monitors the moment of loading, operation and operation of the crane.

Mobile lift crane

Overload and safety:

In an overload situation, the system notifies the operator and interrupts the distribution of oil functions of the crane, while allowing functions that reduce the load moment remain operational.

The system not only monitors the safety during the operation of the crane, but also the position of the crane during transport (stabilizers and boom position).

Additional features include a remote-controlled articulated crane equipped with an information center that controls the stabilizing and voting functions of the loader operating conditions, an internal hose routing system, continuous rotation, optional stabilizer solutions for each side, and an innovative design of flexible stowage support that secures the boom for transport but does not allow damage to the support.

Knuckle Boom Crane
Knuckle Boom Crane

Lifting and crane

Cranes capacity table. How to choose an articulated crane:

Choosing the right articulated crane for the job starts with the answer to two questions:

How much are they usually lifted? And how far will the crane have to get to place it?

  • The alignment of IMT’s cranes has a maximum range ranging from 15 feet to 71 feet and offers capacities ranging from 1,740 pounds (790 kg) to 38,185 pounds (17,320 kg) with a maximum range of 14 feet, 5 inches.
  • After deciding on a model, buyers must decide where to mount the crane on the truck.
  • For maximum load capacity, a uniform distribution of weight and full use of the crane, most operators choose to mount yours in the back of the truck’s box.
  • The advantages of an articulated crane are many and articulated crane experts are available to consult on the unique lifting needs of customers.

Crane load chart

Excels in Tight Spaces

For the loading and unloading of heavy cargo and machinery in restricted spaces, the knuckle boom loader crane has no equal. This kind of crane has proven to be very useful in Europe, where truck size restrictions are stricter, and roads are narrower than North America. However, it is also gaining more popularity in other parts of the world.

These types of cranes have been particularly utilized in the transport, construction, forestry, mining, marine, and petroleum industries. They may be small and easier to use in constricted spaces, but that does not make them any less effective because they can be used to lift cargo of up to and exceeding 60 tons. The knuckle boom can even be outfitted with a winch for additional lifting options.

Crane lifting capacity

What is the lift capacity of an articulating crane?

This depends on the buyer because different buyers have different needs. For example, there are small truck cranes that can be used to lift loads of as little as one ton while there are huge truck cranes which have a 60-ton lift capacity. When you are searching for an articulating crane, let us know your lifting requirements and we will find a suitable crane for you

knuckle boom cranes manufacturers

What are the most popular loader crane brands?

There are many different brands of loader cranes. Most requested brands are:

  • Hiab
  • Fassi
  • Palfinger
  • PM.
  • Atlas
  • Amco Veba
  • Bonfiglioli
  • Copma
  • Cormach
  • Effer
  • Ferrari
  • Heila
  • HMF
  • IMT
  • MKG
  • Pesci.

Hydraulic knuckle boom crane

Advantages of the hydraulic Knuckle Boom Crane

Payload Capacity

Greater Payload Capacity

Considering all the different applications that it can be used for; this is a light piece of equipment – light enough for the truck to carry its regular cargo and carry the weight of the mounted crane as well.

Cranes and lifting equipment

Horizontal Lifting

The articulating crane is excellent at lifting cargo horizontally, meaning that it can even be used in low clearance, tight spaces without causing any damage. Minimal space is needed to operate this crane. With the addition of a jib, the possibilities of the lorry loader are even greater.

Crane Attachments

The loader crane can be equipped with several different attachments at the end of the boom. Examples of these include buckets, pallet forks, brick/block grabs, log grabs, and more!

Crane boom configurations

Multiple Install Configurations

It could be on a truck, on a boat, dock, or railcar. Again, it really doesn’t matter where you choose to install it because it is versatile enough to accommodate your needs. For example, on most trucks, the crane is mounted right behind the cab. In others, it is mounted on the rear of the truck to ensure that weight is distributed evenly on the axles.

No Travel Limitations

It can be installed on your truck; and that means that wherever your truck can fit, your truck crane will also fit because it is really part of the truck.

Easier to Load & Unload

The articulating loader crane allows the operator to load or unload the cargo with much less vertical clearance required compared to a straight boom crane. The option to rear mount the crane gives the operator the ability to load/unload a trailer towed behind the truck.

Knuckle boom cranes producers

Hydraulic articulating knuckle boom cranes producers:

  • PALFINGER cranes: Palfinger loader cranes are available from 1 to 150-meter tonnes. With more than 100 models the company is the world market leader in this segment. The most important industries include construction, transport logistics, emergency services, local authorities, waste management, mining and the inspection/maintenance/cleaning of structures, buildings and large machines as well as leasing and rental business.
  • JOMAC cranes: JOMAC builds knuckle boom cranes unmatched in quality, longevity, and durability. JOMAC knuckle boom cranes are designed and manufactured at Ohio headquarters using 100% American-made parts and labor.

What is a Knuckle Boom Crane?

What is a Knuckle Boom Crane?

Knuckle boom cranes are an amazing piece of engineering technology. Also called a loader crane, articulating crane, and a picker crane, the knuckle boom crane has changed the way people load and offload in a variety of industries.
It looks similar to the traditional straight boom crane, but the knuckle boom crane has two booms; a main boom and an outer boom. These two booms have a knuckle between them, which allows more options for the loader crane operator.

How does a knuckle boom crane work?

Look at your fingers; hold your index finger out straight, and then bend your finger at the knuckles. The knuckle boom crane works in the same manner. The addition of these two knuckles on the crane allows for many more different uses compared to a straight boom crane. These knuckles also make it easier to fold into a smaller size, but at the same time it can extend further to reach loads at a distance. This kind of “fold and extend” ability is missing in the traditional stiff boom cranes.

How is the knuckle boom crane used?

First, it depends on where it will be used. For example, in the construction and transport industry, it is fitted onto a truck; for marine use, this crane is mounted onto a boat. It can also be mounted on a dock or railcar, and its ability to fold up for storage during transport makes it a more versatile option compared to the traditional stiff boom crane.

What is the outreach of a good knuckle boom?

Again, this depends on what you want. For example, some have an outreach of only a few meters, yet others can reach over 30 meters. These are just two examples; there are varying outreach distances for different cranes.

How do I control the knuckle boom crane?

There are many options for the operator, including the remote control/wireless control, top seat control, stand up control, and ground control. With more technology integrated into the operation of knuckle boom cranes today, you can even use a joystick to operate the crane.

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Biggest Crane

Giant Crane: Worldwide record of telescopic cranes, lifting of electric turbines, bridges, metal structures, LIEBHERR 11200

Knuckle Boom Truck

The boom of the knuckle crane is a device designed to lift and distribute loads suspended from a hook. They are equipped with a means of propulsion able to produce the necessary movement to enable their movement on public roads and land.

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Biggest Crane

Biggest crane in the world: The LTM 11200 is the largest mobile crane in the world, manufactured by the German giant of heavy machinery, Liebherr Group.

This type of cranes is used in construction, general civil works of great magnitudes, such as the construction of a viaduct, although they can also act in private works such as the repair of a skyscraper.

Habitually, a quite common use is the maintenance and repair of large wind towers.

Biggest Crane
Biggest Crane

Biggest crane in the world

Biggest Liebherr crane:

The Liebherr LTM 11200-9.1, built by the German company Liebherr Group, is the most powerful mobile crane ever built. It also has the longest telescopic boom in the world, which extends fully to 100 meters. It’s set on a double cab truck and can lift 1200 metric tons – that’s nearly 700 automobiles. That’s real pound-for-pound power for its category, but ultimately not the strongest crane in the world when compared to stationary cranes.

Crane data sheet

  • The maximum load capacity is 1200 tons at a distance of 2.5 meters from the axis of rotation and 202 tons of ballast.
  • The load capacity of 65t in braced telescopic boom 100 m long
  • The crane is equipped with four telescopic hydraulic supports that are supported on the ground to ensure stability.
  • The mobile crane weighs 108 tons, is 3 meters wide, 20 feet long closed.
  • Officially, this crane was presented in April 2007 at Bauma, the world trade fair for construction machinery.
  • The axles have a system in which all the wheels rotate and the crane can easily become a tight place.
  • The chassis has 9 axles with a newly developed rear axle.
  • Telescopic boom 100 m in length and extensions of 22 m telescopic boom (10 m + 6 m + 6 m)
  • Folding nib 126 m long
  • Fixed nib 60.5 m long, optionally hydraulically adjustable
  • Quick and comfortable assembly in small spaces
  • Optimal for assemblies in the industry, in wind energy and for infrastructure works
  • Rear direction active as a function of speed, all axes addressable
  • Economic transport

Now you know a little more about this powerful construction machinery.

Biggest Crane
Biggest Crane

Crane specification

The chassis moves with the superstructure, lifting cylinder and four support beams folding on the road.

The weight of the vehicle and the axle weights can be reduced by disassembling the equipment. The pen is transported separately in a gondola. For this, there are different possibilities.

Biggest Crane
Biggest Crane

Biggest mobile crane in the world

A multitude of works of cranes of great capacities can be realized with few vehicles of transport.

For the assembly of a wind turbine with a rotor center height of 80 m and individual weights of up to 80 t, only 4 transport units are required:

Biggest Crane
Biggest Crane

Crane counterweight

The concept of counterweights of the LTM 11200-9.1 developed by Liebherr offers multiple advantages for the crane.

  • Dimensions and weights of the counterweight plates are optimally adjusted to the gondola
  • Complete assembly of counterweights without an auxiliary crane
  • High profitability thanks to the compatibility of the counterweights with those of other large capacity Liebherr cranes
  • Comfortable and safe counterweight assembly with the control unit and BTT function console
  1. Motherboard 22 t
  2. 16 identical plates of 10t each 160 t
  3. 4 identical plates of 5t each 20 t
  4. Total weight 202T

Thanks to the low working height due to the extensive distribution of the counterweights in two piles on each side, greater safety and ergonomic working conditions are obtained.

Crane system

Transfer system:

  • Hydropneumatic suspension
    • Maintenance-free suspension cylinders
    • Large dimensions to support high axle weights
    • Suspension travel + 175 / -125 mm
    • High stability in curves
    • Choice of the translation program through fixed selection programs
  • Disc brakes
    • High breaking capacity, better dosage
    • Improved stability in the braking line
    • No loss in brake efficiency through higher temperatures (fading)
    • Long useful life
    • Change of pads fast and easy
    • Brake pads with wear indicator
  • electric brake
    • No wear, system requiring little maintenance
    • More security thanks to the quick activation in thousands of seconds
    • Reduction of operating costs
    • High comfort thanks to absolutely jerk-free brakes
    • Ecological brake system, free of emissions and particles
  • Chassis engine
    • Powerful 8-cylinder turbodiesel engine with 500 kW / 680 PS, max. 3.000 Nm
    • 12-speed automatic gearbox system ZF-TC-TRONIC with converter, next to the gearbox offers high profitability and the best comfort.
    • Axes 1, 2, 4 and 5 are addressable axes

Motor crane

  • Liebherr 6-cylinder turbodiesel engine, 270 kW / 367 PS, max. 1,720 Nm
  • Optimal fuel consumption through electronic engine management

Crane cabin

Comfort and functionality:

  • Both the modern driver’s cab and the mobile operator’s cab have a comfortable and functional arrangement of the elements.
  • The control and command elements are located according to ergonomic criteria.
  • In this way a safe and fatigue free place is guaranteed.

Driver’s cabin

  • Resistant to corrosion
  • Panoramic safety glazing
  • Tinted windows
  • External mirrors heated and electrically regulated
  • Driver’s seat with air suspension with lumbar and vertebral support
  • Additional heating independent of the motor, Air Conditioning

Crane cab

  • Optimized heating and ventilation system, automatic temperature regulator, additional independent motor heating, air conditioning
  • Wide visual field thanks to large moons
  • Driver’s seat with lumbar and vertebral support, adjustable with multiple options
  • Folding 20º backward
  • The cab can be lowered hydraulically for more comfortable access
Biggest Crane
Biggest Crane

world’s largest mobile crane

Load moment indicator

Safe Load Indicating Systems for mobile cranes have been in existence for over 50 years. Over the past 20 years, as technology has progressed, devices capable of measuring load moment have become very widely used on many types of cranes on a worldwide basis. Despite this prevalence, there exists a number of misconceptions about what load moment is and its importance for monitoring the capacity of cranes.

The term load moment is an engineering term which refers to the product of a force and its moment arm. The moment arm is defined as a perpendicular distance between the force vector and a reference point as shown below. In the case of cranes, the force acts vertically through the center of gravity of the load and the moment arm becomes the horizontal distance from this center of gravity of the load and the center of rotation of the crane.

Therefore, with a one thousand unit force acting at a ten unit radius, the load moment is the product of these two factors or ten thousand units as shown below.

Biggest Crane
Biggest Crane

If we increase the radius such that this load acts upon a twenty unit radius, the load moment has increased to twenty thousand units

Biggest Crane
Biggest Crane

Load moment indicator crane

In this example, the load on the load line has remained the same but the load on the crane, the load moment, has actually increased by a factor of two. Because load moment is used to determine the capacity of a crane, crane load charts require the operator to determine not only the magnitude of the load but the radius that the load is acting upon. Since load, the moment is a product of these two each value becomes equally important

In the past crane operators often relied on “feel” to determine when the crane was reaching capacity. By working from “the seat of his pants” the operator felt the load on the outriggers lighten and knew he was reaching the stability limits of his machine.

He was in effect using the stability of the machine to indicate load moment. In the past, the cranes were very heavily constructed with the consequence that the structural capacity far exceeded the stability limits of the machine.

Load moment indicator for mobile crane

Now the emphasis is on reach and readability and the manufacturers have utilized higher yield steels to create the stronger and lighter cranes. This has had two effects.

  • The structurally limited portion of the load charts has increased. This is the first portion of the load chart where a structural failure can occur before the stability limits are reached. In some cases, this can encompass the entire chart for the main boom. A failure in this area can be sudden and with little or no warning.
  • The second effect is that by utilizing lighter booms with more elastic steels boom deflection has increased dramatically. This is extremely important because as the boom deflects under an actual load it increases the load radius.
Biggest Crane
Biggest Crane

This increases the load moment proportionately. An increase in the radius of 15% has increased the load on the crane by 15%. It is extremely important that the operator be aware of these dynamic changes affecting the crane.

In a job site situation, the operator may not know the true magnitude of the load. It may have been frozen to the ground or may have taken on water. Once determined this is only half the equation. Just as importantly, he does know the final load radius. It is impractical to physically measure this new load radius because the true load radius is not achieved until the pick is already made.

What is the load moment?

Therefore, it is imperative that the operator not only be aware of the load on the hook but also of his true load radius, dynamically, as he increases the load on the boom. This is the distinct advantage of a load moment system.

A load moment system, by monitoring load moment and by compensating for the true deflection under load can give an operator an indication of exactly where he is on the load chart of the machine. If only the hook block load is monitored the true load on the boom and its effects on radius are not considered.

Conventional Lattice Boom Cranes work under a different principle which results in reducing the impact of deflection.

Biggest Crane
Biggest Crane

Crane load indicator system

As shown above, the pendant ropes supporting the boom tip create an offsetting force with the resulting load aligned in the plans of the boom. The boom in a conventional cane, therefore, is in compression behaving more as a column.

Generally, total deflection has much less impact upon radius than it does with telescopic cranes. There are still, however, great advantages to a load moment system on a conventional crane. By monitoring the forces in the boom hoist structure, the system can monitor the load on hook, the boom weight, and any dynamic forces on the boom. In the case of large conventional machines additional forces such as icing, wind, load dynamics, etc. can have a significant impact on capacity.

Load moment systems, as with most crane indicating systems, are considered operators aids. The intent is always to provide the operator with as much relevant information as possible to enable hirn/her to perform their duties in the safest and efficient manner possible. Ultimately, however, it is the operator that makes the difference. A well trained and experienced operator utilizing well-maintained equipment with state of the art operator aids is the best assurance that the lift operations will be conducted safely and efficiently.

Who owns the biggest crane in the world?

Who owns the biggest crane in the world?

The Liebherr LTM 11200-9.1, built by the German company Liebherr Group, is the most powerful mobile crane ever built. It also has the longest telescopic boom in the world, which extends fully to 100 meters. It’s set on a double cab truck and can lift 1200 metric tons – that’s nearly 700 automobiles.

How large is Liebherr?

Liebherr is the 20th-largest Swiss company by revenue (8 270 million Swiss francs). The top 10 Swiss companies by revenue are Glencore, Nestlé, Novartis, Roche, ABB, Adecco, Migros, Holcim, Cargill International SA, Coop.

How much can a modern crane lift?

The maximum load that the crane can lift is 18 metric tons, but the crane cannot lift that much weight if the load is positioned at the end of the jib. The closer the load is positioned to the mast, the more weight the crane can lift safely.

What is the largest mobile crane in the UK?

Costain has used the UK’s largest mobile crane to install the main deck girders for the Clydach River Bridge. The bridge, located in Saleyard, is part of the Heads of the Valleys project to create a dual carriageway on the A465

How much can a hydraulic crane lift?

Hydraulic truck cranes vary in lifting power. It’s easy to tell how much a particular hydraulic truck crane can lift just by the name of it: A 40-ton crane can lift 40 short tons (80,000 pounds or 36,287 kilograms).

What is boom angle indicators?

Boom angle indicators are normally mounted on the boom butt, visually readable by the operator. On most models in the NCF, the boom angle indicator is a metal plate with degree numbers (0 to 90 degrees) and a freely swinging arm that reacts as the boom angle changes.

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Telehandler Forklifts

A telehandler handler, also known as a telescopic handler, telehandler, teleporter or rough terrain forklift, is a vehicle with a telescopically extensible boom, which can extend forwards and upwards from the vehicle, so it can be fitted with various lifting.

Telescoping Boom Lift

Traditionally, the telescoping system consisted of as many extension cylinders as the displaceable sections had the boom of the telescopic crane. This gave the crane great flexibility of movements with the counterpart of excessively increasing the weight of the pen itself.

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