WOLFF 7534.16 Clear US


NormsEN 14439
Max. load capacity16.5 t (36380 lb)
Max. jib radius75.0 m (246')
Rope falls2 | 4
Hoisting gear:
Type875 FU
Operating currentA112
Peak currentA179
Supply line:
Cross Section Amm²50 | 70
Max. fuseA125
Max. length S2 + S3m212 | 297
Connected powerkVA93
min. required generator powerkVA186

Main Components

30 m (98′) basic jib with trolley gear. Extensions up to 75 m (246′) radius in 2.5 m (8′) steps. Slewing frame with two slewing gears, slew bearing with central lubrication unit and slipring system, operator cabin station with control cabinet. 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 weathervaning device. Automatic windforce compensation controls. Trolley gear.

Electrical Equipment

Multivoltage equipment for supplies 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 operator, both operational and diagnostics.

Safety Devices

Electronic overload protection with WOLFFBoost. Increased load moment limitation due to automatic hoist speed reduction. Menu guided setting of overload protection system and of all limiters from operator’s cabin. Working space limiter. Anti-collision interface. WOLFFLink data transfer System. Trolley rope breakage safety device.

Tower Elements, Climbing Device

Tower configuration of WOLFF system tower elements. WOLFF slug bolt connection. Detachable hydraulic WOLFF external climber KWH 20.3.1 and KWH 20.6.1 or the internal climber KSH 20 SH.

Undercarriage UW, Travelling Cross Frame KRF

WOLFF undercarriage UW can be used with gauge from 6.0 m up to 8.0  m (20′ - 26′) or travelling cross frame KRF with 6.0 m up to 10.0 m (20′ - 33′).

Cross Frame Element KRE, Cross Frame KR

For stationary installation. KRE elements can be modified to UW. Cross frames KR can be modified to KRF.

Power Requirements and hook paths (Slewing part)
66 kVA (Hw 845 FU),
hook path 190 m (623′) in 2-fall operation
hook path 95 m (312′) in 4-fall operation.

93 kVA (Hw 875 FU),
hook path 460 m (1509′) in 2-fall operation
hook path 230 m (755′) in 4-fall operation.

Datenblatt WOLFF 7534.16 Clear US (pdf)
CAD-Daten WOLFF 7534 Clear US (dwg)
WOLFF Boost (pdf)

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