Each mobile crane consists of two parts - a slewing and a non-slewing part. The non-slewing part is the supporting structure for the slewing part, and they are connected by a slewing support mechanism. Simply put - underneath the chassis, above the crane.

The most important part of the crane that takes care of most of the work is, oddly enough, the boom, which can be made in different forms

telescopic with a hydraulic cylinder and rigid suspension

lattice with ropes and soft suspension

turret mechanism

boom and jib

The tilt angle and outreach of the boom are changed by means of steel ropes mounted on a flexible hanger. If the suspension is rigid, a hydraulic cylinder is used to change the position of the boom

However, the boom is not just a piece of metal, but a complex structure consisting of several important components sections for installing telescopic booms to extend the length of the boom jigs also used to extend the overall length of the boom a chain hoist for lifting and lowering the boom equipment

Design and features of crane arms

Profile and number of sections

Often the profile is a rectangle, less often it is a trapezoid, sometimes with rounded corners. Cranes with high lifting capacity have booms with complex shapes

Two-section booms can handle up to 10 tons of loads.  If you plan to lift loads with greater mass, use cranes with three, four, or more sectional booms.

Lattice booms

The boom can be lattice instead of telescopic. This design is more complicated than the telescopic type, but it weighs less and provides greater lifting capacity

Basic boom characteristics
Truck crane arms vary in a number of parameters:

●       Lifting capacity - the maximum load that the boom can lift

●       Boom length - an important parameter to take into account when it is necessary to lift a load to a height. It is calculated from the base to the extreme point of the boom head

●       Boom outreach - the distance from the axis of the crane unit to the axis of the load (at the highest lifting capacity of the crane, the boom outreach is the smallest)

●     Hooklift height - depends on the reach and lift of the boom, and on whether the supports are used; boom mobility angle – relates to the angle at which the boom can move horizontally

●      Speed of load movement – measured in meters per minute of movement

●     Boom modification time –  the time interval required to move the boom in the opposite direction

When you need a truck crane, remember to consider each of the above characteristics and contact the professionals