Wolffkran WOLFF 275 B US Specifications

The 26.5-ton (52, 910 lbs) WOLFF 275 B US Luffing Jib Tower Crane is designed for the North American market and has a 2.18-ton (4, 370 lbs) Load Capacity at a jib radius of 197' (60 m). 

Main Components
30 m (98′) basic jib. Extension up to 60 m (197′) in 5 m (16′) steps. Tower top with luffing gear. Slewing frame with slewing gear, electrical central lubrication and slip ring system, crane operator’s cabin station with control cabinet. Counterjib with hoisting gear and counterweights.

Drive Technique

All drives frequency controlled squirrel cage motors, fully thermal protected. Hoisting winch Hw 2475 FU, hoisting gear with performance optimization and performance reduction option. Slewing gear with electrically operated weather vaning device. Automatic wind force compensation controls. Luffing winch Ew 1460 FU with switchable electronically controlled horizontal load path.

Electrical Equipment

Multivoltage equipment for supplies from 480 V Y / 277 V 60 Hz. Voltage monitoring, electronic safety crane controls with bus technology. Incremental absolute encoders for all operating movements. Electronic load measuring. Multilingual graphic display with touchscreen. Wind indicator and signal lights.

Safety Equipment

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, luffing gear with slack rope monitoring.

Tower Elements, Climbing Devices

Tower confi guration of WOLFF system tower elements. WOLFF slug bolt connection. Detachable hydraulic WOLFF system climbing device KWH 20.6.1 or KWH 23 or inner climbing device KSH 20 SH or KSH (E) 23.

Cross Frame KR, Mobile Cross Frame KRF

Cross Frames with 4.6 m (15′) to 10.0 m (33′). Cross frames KR can be converted to KRF. Mobile cross frame KRF with 6.0 m (20′) to 10.0 m (33′).

Power Requirements and Hook Paths (Slewing part)

134 kVA (Hw 2475 FU).
700 m (2296′) with the one-fall operation
350 m (1148′) with the two-fall operation

Select Crane Sales is the Authorized WolffKran Tower Luffer 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.