Wolffkran WOLFF 7534.8 clear US Specifications

The 9.37 ton (18, 740 lbs) WOLFF 7534.8 Clear US Flat Top Tower Crane is purpose-built for the North American market and has a 4.12-ton (8, 250 lbs) Load Capacity at a jib radius of 246' (75 m). 

Main Components

30 m (98′) basic jib with trolley gear. Extensions up to 65 m (213′) radius in 2.5 m (8′) steps. Slewing frame with driver’s cabin, control cabinet, two slewing gears, ball race bearing with central lubrication unit and slip ring system. Counterjib with hoisting platform and counterweights.

Drive Technique

All drives frequency controlled squirrel cage motors, fully thermal protected. Hoisting winches Hw 845 FU or Hw 875 FU. Automatic re-reeving device (from 2-fall to 4-fall operation). Two slewing gears with electrically operated weather vaning device. Automatic windf orce compensation controls. Trolley gear.

Electrical Equipment

Multivoltage equipment for supplies of 480 V Y / 277 V 60 Hz. Electronic safety crane controls with bus technology. Incremental absolute encoders for all operating movements. Electronic load measuring device at basic jib section. Multilingual graphic display showing information to the crane operator, both operational and diagnostics.

Safety Devices

Electronic overload protection system. Increased load moment limitation by automatically
hoisting speed reduction. Menu guided setting of overload protection system and of all limiters from operators cabin. Working space limiter. Anti collision interface. Trolley rope breakage safety device.

Tower Elements, Climbing Device

Tower configuration of WOLFF system tower elements. WOLFF slug bolt connection. Detachable hydraulic WOLFF system climbing device KWH 20.3 or KWH 20.6. WOLFF system inner climbing device KSH 20 SH.

Cross Frame KR, Mobile Cross Frame KRF

WOLFF cross frames KR can be used with a gauge from 6.0 m up to 10.0 m (20′ - 33′). WOLFF cross frames can be modified to KRF.

Power Requirements and hook paths (Slewing part)

67 kVA (Hw 845 FU), hook path 190 m (623′) in 2-fall operation.

Select Crane Sales is the Authorized WolffKran Flat Top Tower Crane distributor in the United States.

From the planning of entire crane concepts, configuring, to individual static calculations or the development of customized solutions – Select Crane Sales Support Team is ready to help you capitalize on the full potential of WOLFF towers on your next construction job.