Wolff Construction Cranes Portland

Due to the way they particularly operate, hydraulic truck cranes are different from other crane models. Instead of utilizing a winch in order to wind up cables to provide the lifting force, hydraulic cranes use oil instead. As oil is a fluid which retains its volume, it is incompressible. Therefore, this means it is among the most ideal kinds of fluids for pushing pistons towards the direction the force is going to be exerted.



The pressure created by the hydraulic pump moves the piston. This action is maneuvered by the driver using the controls within his cab. Typically, hydraulic truck cranes use a 2 gear pump.



The truck mounted crane can move from one site to another with little need for dismantling. The truck crane has one engine that can control both the truck and the crane.



Other Parts

Boom Telescope: The boom telescope enables the boom to extend or retract because of hydraulics.



Jib: Jibs are latticed structure booms..



Boom Swing: Boom swings have a big ball or roller attached to the carrier. It can swing 360 degrees in both directions. Hydraulic devices provide swings at various speeds and control the swing in order to revolve the turntable gearbox.



Outrigger: The outrigger is a unit which helps the crane maintain its balance by using hydraulics to lift the truck.



Load Movement Indicator: The load movement indicator is lights which flash in order to warn the operator that maximum weight is approaching.



Pump: The pump is the mechanism responsible for steering the outrigger.



Steel Cables: The steel cables are reinforced and run through the boom and the jib. They can generate up to 6350 kg or 14,000 lbs.



Boom Elevation: The crane's boom ascends utilizing double hydraulic cylinders which allow for lowering and raising materials.



Rotex Gear: The rotex gear is located beneath the cab and operated by hydraulics. It enables the boom to swivel on this gear.

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