Worm Gear Reducer

Quarter turn Gearbox QW is full worm gearbox, which can operate 360 degree for quarter turn application, mainly used for butterfly valve, ball valve and damper, manual or motorized operation is optional. The torque is available up to 11250Nm, QW range ratio is from 51:1 to 442:1.The gearbox stanard is IP67, work temperature -20℃ to 80℃, when need special condition application, welcome contact us.

Quarter turn Gearbox is combined with Multi-turn actuators for quarter-turn applications. It can operate quarter-turn valves and damper for high performance of torque,like ball valve, butterfly valve, etc. Combinations between quarter-turn Gearbox and Multi-turn actuator AVA are available up to 400,000Nm torque. With cast iron housing, actuator ratio is from 40:1 to 5000:1. Worm gearbox can be with lever or without if it is required, max can reach IP68, -60℃ low temperature.

Greatork minus 60℃ low temperature gearbox mainly used to extreme low temperature enviroment, especially for North China area, Russia, Ukraine, and Kazakhstan, the torque is as same as standard temeprature worm gearbox, but replaced inside spares to meet extreme low temperature requirement, we also provide customize service, can design and process according client's specific requirement.

The dual input gearbox can be used for gate valve, globe valve and penstock, water tight IP65, ratio from 2.6:1 to 7:1, max torque can reach 6800Nm. One actuator can operate two gearboxs in the same time, most of time, it's installed to open/close big penstock, we can also customize according client's requirement for specific application.