Each 10m tall hoist contains a large FZG helical unit (size H4 HH15) with a 55kW 6-pole motor, plus a total of 13 Motox helical bevel geared motors in varying sizes (from KA88 to KA148), all fitted with eff1 motors.
The project was shipped to Finland during December 2007 via Jackson Power customer SMS Mevac UK, a specialist in secondary metallurgy. It comprises two identical crane hoists, the second of which is now being assembled.
The hoists were designed by Flender drive system specialist Jacksons Power Transmission of Stoke-on-Trent, UK. A large lift weight was required of the system, 75,000Nm delivered torque, with a gearbox ratio of 250:1 for the main gear unit.
The hoists will be used in conjunction with other equipment for the secondary treatment of ladles of specialised molten steel into customer required specifications. The whole plant is designed to operate at a wide range of ambient temperatures of between -20 and +50 degrees C.
Pete Jackson, of Jacksons Power, said: “Flender were able to offer special double input geared units to meet the design criteria within the very tight delivery period that we and our customer required.”
