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.

• Mobile Crane Parts
• knuckle Boom truck

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.

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.

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.

What is a boom lift?

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