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2018 Skyjack SJ1056 Image
Stock Number: EQC012374
Make: Skyjack
Model: SJ1056
Year: 2018
2018 Skyjack SJ1056 Details
2015 Terex CTT 121A-5 TS16 Image
Stock Number: 600017
Make: Terex
Model: CTT 121A-5 TS16
Year: 2015
2015 Terex CTT 121A-5 TS16 Details
2007 Potain HDT80 Image
Stock Number: 600194
Make: Potain
Model: HDT80
Year: 2007
2007 Potain HDT80 Details
2013 Hyundai 110D-7E Image
Stock Number: EQU010604
Make: Hyundai
Model: 110D-7E
Year: 2013
2013 Hyundai 110D-7E Details
2012 Miller Big Blue 400D Image
Stock Number: 231276
Make: Miller
Model: Big Blue 400D
Year: 2012
2012 Miller Big Blue 400D Details
2008 Combilift C12000SL Image
Stock Number: EQU008108
Make: Combilift
Model: C12000SL
Year: 2008
2008 Combilift C12000SL Details
Wolff Construction Cranes

Wolff Construction Cranes

Due to the way they specifically work, hydraulic truck cranes are different compared to other crane types. As opposed to using a winch in order to wind up cables to provide the lifting force, hydraulic cranes use oil instead. As oil is a fluid that retains its volume, it is incompressible. Hence, this means it is one of the most ideal types of fluids for pushing pistons towards the direction the force is going to be exerted.

The hydraulic pump creates a pressure that moves the piston. This action is maneuvered by the driver using the controls in his cab. Typically, hydraulic truck cranes utilize a pump which has 2 gears.

Because the actual crane itself is mounted on a truck, it is able to travel numerous distances from site to site and there is little dismantling involved. The truck crane has one engine which controls both the truck and the crane.

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

Jib: The jib is a latticed structure which extends from the boom.

Boom Swing: The boom swing is a large ball or roller that is connected to the carrier. It can swing 360 degrees in both directions. Hydraulic mechanisms control the swing and provide swings at varying speeds in order to revolve the turntable gearbox.

Outrigger: Outriggers are units that cranes will use to maintain its balance. It uses hydraulics to lift the truck.

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

Pump: The pump's purpose is to steer the outrigger.

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

Boom Elevation: The crane's boom ascends with the use of double hydraulic cylinders which can be raised and lowered.

Rotex Gear: The rotex gear is situated underneath the cab and operated by hydraulics. It allows the boom to swivel on this gear.

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