The new generation of electric drive hoisting winches from ZOLLERN

Drive technology is changing. More and more systems are electrically driven. Alongside changing environmental legislation, decisive factors for using electric drives include the possibilities for increasing power output, energy efficiency, ease of service and cost advantages.

With this in mind, Zollern presents its new generation of electric rope winches. The driving heart of each of these winches is the synchronous motor, developed and manufactured in-house. The new series comprises five motor sizes with a power output ranging from 60 kW to 210 kW. The maximum speed attained is over 4000 revs/min. The motor housing is permanently watercooled, ensuring optimum operating conditions. The new series benefits from an extremely compact build and a mass moment of inertia which is low for electric motors. At 97 percent these motors are very efficient.
Another feature of the Zollern synchronous motor is the integrated brake and emergency stop. This is easily accessible when servicing with no need to disassemble the motor. Combining the Zollern elec-tric motor with the planetary flange drive gearbox makes it possible to achieve an extraordinarily compact build as required for many applications and also enables further crane cost savings. In the ma-rine sector, the new rope winch series is particularly suited for use with ship, port and offshore cranes and in the construction machin-ery sector for tower cranes or other crane applications.