Headquartered in Hong Kong with strategic offices in Shenzhen and Shanghai, ALTRA offers high quality products under a wide range of brands. We have 18 product lines including electromagnetic clutches and brakes... ; Elastic coupling, flexible disc (disc) coupling, gear coupling, compound drive shaft... ; Pneumatic and hydraulic heavy-duty clutches and brakes, free wheels, backstops, special bearings, and reduction motors... All these products are manufactured in factories. We serve a variety of markets such as: Medical mobility AIDS, forklifts, off-road vehicles, elevators, handling vehicles, cranes, Food & Beverage, Aerospace & Defense, Environmental Protection & Energy, Oil & Gas, Marine, Waste Management and the automotive industry [more]