The WOLFF 166 B US Hydraulic
Luffing Jib Crane at CONEXPO-CON/AGG


After the successful introduction of WOLFF luffing and saddle jib cranes with middle to high lift capacities for the U.S. market, WOLFFKRAN is now following suit with one of its smaller luffing jib cranes, the WOLFF 166 B. The new crane is compliant to U.S. electrical standards and all U.S. requirements regarding structural components, naming it WOLFF 166 B US.

Due to its impressive performance and an extremely compact design, the WOLFF 166 B has quickly developed into a bestselling crane for reinforced concrete structure projects on space restricted inner-city jobsites since its launch in 2012. Unlike conventional luffing jib cranes with a winch driven luffing gear, the WOLFF 166 B US is fitted with a compact hydraulic luffing mechanism which eliminates the classical tower top and reeving of the luffing rope, making both transportation and assembly more efficient. The hydraulic luffing design also allows for a smaller out-of-service jib position, which is particularly important on constricted city construction sites.

The WOLFF 166 B US offers a maximum load capacity of 12,000 kg in 2-fall operation and 6,000 kg in 1-fall operation. The jib lineup ranges from 25 m to 55 m and can be extended in 5 m increments. With a 50 m jib it achieves a best-in-class tip load capacity of 3,350 kg.

Equipped with a powerful 60 kW hoist winch the WOLFF 166 B US offers a hook path of 500 m and line speeds of up to 174 m/min in 1-fall operation and can be built up to a free-standing tower height of 93.2 m thanks to the modular WOLFF tower system.

The hydraulic luffing cylinder with load sensing control automatically regulates the luffing speed according to the load which results in a remarkable luffing movement from maximum to minimum jib radius in only 90 seconds with an economical 22 kW motor. The on-site connected power requirements sit at a low 91 kVA with 480 V.

Both the hydraulic cylinder and the hydraulic unit are installed in the connecting block as a compact unit. Thanks to this design, the hydraulic lines do not need to be disconnected for transport and assembly, saving time and cost for erection and installation. The connecting block can either be lifted onto the tower alone or as a pre-assembled unit together with the slewing frame and lower section of the tower top.

The hoist winch of the WOLFF 166 B US is conveniently positioned on the jib allowing safe prereeving of the hoist rope on the ground prior to installation and offering easy access in case of scheduled maintenance.

The WOLFF 166 B US is fitted with the latest WOLFF CAB crane cabin providing optimal visibility and overview, a fully adjustable seat and ergonomically designed control panels providing a comfortable place of work for the operator. The cabin platform with the cabin and switch cabinet comes preassembled as a single unit ex-works and can be attached to the crane in just one step.

Further standard features facilitating safer and more efficient operation include the remote data transmission system WOLFF Link, an anti-collision interface for all major anti-collision systems, a working range limitation, electrical central lubrication of the slewing ring, a temperature-controlled switch cabinet with heating and ventilation and a slip ring system in the lower part of the tower top for an optimal signal transmission.

The WOLFF 166 B US will be showcased on a WOLFF City Portal (CP 690) that adapts a standard WOLFF Cross Frame (KR 12-60) by means of adding support legs into a convenient solution allowing traffic to flow underneath the crane.

Source: WOLFFKRAN International AG

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