CranesThe large group of cranes includes small cranes mounted on small vehicles or for lifting of smaller loads, as well as heavy cranes used for the handling of heavy loads at height. The smallest PC cranes are powered by electro-hydraulic aggregate and are distinguished by low weight, high capacity, low price and low maintenance costs.
The larger cranes obtain a required amount of oil from the pump run by the motor of the vehicle through an appropriate motor assembly. The differences between the small and large cranes are not only in their lifting capacity. Small cranes cannot fully rotate, while the larger cranes can fully rotate around its axis.
In order to achieve an optimal elevation there has been a special manual mechanism designed to increase the power and improve the lift curve.
The electronic equipment in the small cranes is not as functional as in the larger cranes. The larger cranes are operated by advanced electronic functions controlled by a radio remote control.
The overall operational safety is ensured by using electronic functions that control the operation of the crane in every single position.
There is a very wide range of additional equipment available. Beside the conventional hook, the crane can also be equipped with different grabs, rotators, winches, etc. To achieve a higher elevation or a certain length the crane can be additionally equipped with a large number of telescopic hydraulic arms.
Cranes can also be divided by type of stacking:
- Cranes which are stacked across the vehicle deck behind the cabin and on the overhang of the vehicle
- Cranes which are transported in the vehicle longitudinally
Cranes can be stationary mounted - for lifting of loads at a specific location.
Cranes are used by load carriers for cargo uploading and unloading, further on, by constructors who use cranes for the delivery and installation, by firefighters who use them for rescue, by electric companies or municipal maintenance and sanitation services for their activities, etc.