Exploring Hydraulic Truck Cranes
Although simple in design, hydraulic truck cranes can perform tasks sometimes viewed as 'impossible'. In a fraction of time, these trucks can raise heavy bridge beams of highways, heavy equipment in factories and even lift houses onto pilings.
By using a simple principle of hydraulics, hydraulic truck cranes are strong enough to move thousands of pounds with relative easy. This makes these trucks essential components of most construction projects.
Hydraulic truck cranes are consisted of:
- Boom – A large arm responsible mainly for lifting;
- Counterweights – Multi-ton weights located on the back of the cab to prevent the truck from tipping during lifts;
- Two-gear pump – A hydraulic pump system that uses two rotating gears to pressure oil;
- Jib – A lattice structure that extends out of the boom;
- Outriggers – Supports that keep the truck balanced.
- Rotex gear – Larger gear located under the cab that allows the boom to be rotated.
With hydraulic trucks everything is about hydraulics. Pressure is created by one of two types of hydraulic pumps – variable displacement pump and gear pump and the most commonly used incompressible fluid is oil.
The most recognizable part of a truck crane is the boom. This steel arm is responsible to hold the load and makes an essential piece of the crane, allowing the truck to raise loads to very high heights. But to lift heavy loads to tall heights, it is important that the truck is completely stable during the lifting operation. Since the tires don't offer the needed stability the outriggers are used to keep the truck from leaning too much to one side or another.
There are also several control mechanisms that a truck crane operator uses to raise and lower the boom, rotate the cab and to control many other equipment. Two basic types of controls for maneuvering a load include:
- Joysticks - two joysticks are available in the cab. One designed to control left and right movements of the boom and the other to control forward and aft movement.
- Foot pedals - Pedals responsible for retracting and extending the telescoping section of the boom. They are also responsible to control the amount of pressure that is generated by the pump.
Before performing any lift task, the operator must enter data into a computer inside the cab. That data contains the weight and height of the object to be lifted. This computer is responsible to warning the operator if the truck crane is operating beyond its capability.
To find hydraulic truck cranes for sale in Australia, visit your close dealer. There you will be able to meet an experienced professional who will be able to help you in finding the best truck crane for your application needs. You can also search for hydraulic truck cranes for sale in Australia online. Online you will be able to find various different online retailers offering a vast range of truck cranes. By comparing price and quality you should be able to have several options to choose from.