Weima Electric (Shanghai) Ltd.

The high-speed gearboxes from RENK-MAAG GmbH are designed and constructed according to the latest findings and methods of gear unit technology. RENK-MAAG GmbH high-speed gear units can transmit a power of up to 180 MW and serve as the key component of an energy production system or as drive units for compressors or pumps (such as those used for air separation, the supply of gas turbines, gas compression, in the chemical and petrochemical industries, the refining of raw materials, steelworks, and in the process industry).

The pinions of the helical gearboxes with horizontally, vertically, or diagonally divided housings rotate at up to 63,000 rpm. The gearbox housing and the customer’s connecting dimensions can either conform to RENK’s standards or be adapted completely to the requirements of the customer. This is of crucial importance when it comes to replacing third-party products in particular.

Gearboxes from RENK-MAAG GmbH can be propelled by gas turbines, steam turbines, synchronous or asynchronous electric engines, or even by expanders (axial or radial turbines). An energy recovery system can even be implemented in conjunction with a synchronous clutch coupling from RENK-MAAG GmbH. In this case, a synchronous electric engine, for example, propels a compressor and an expander turbine feeds process energy back into the system via the MS clutch.

Technical Data

• Power transfer: 0.25–180 MW

• Efficiency: Up to 99.3%

• Center distance: 150 mm to over 2000 mm

• Speeds: Up to 63,000 rpm

• Pitch line velocity: Up to over 180 m/s

• Transmission ratios: 1–50 (single- or multi-stage)

• Housing design: Welded, cast

• Toothing: Single-helical with and without thrust collar, double-helical

• Drive variants: Synchron engine, asynchronous engine, gas turbine, steam turbine, expander turbine, energy recovery with MS-coupling

We can provide original German RENK gearboxes, couplings, sliding bearings, RENK bearings, oil seals, oil rings, and other accessories, so no matter what brand of motor the customer uses (including but not limited to: TECO Motor , ABB motors, Siemens motors, WEG motors, Marathon motors), as long as they are equipped with RENK products, we can provide related RENK product services.