Shanghai SGR Heavy Industry Machinery Co., Ltd. (formerly known as Shanghai Great Wall Reducer Co., Ltd. ) has accumulated rich original designing & manufacturing experience after being founded in 1996. SGR branded planetary gear reducer has won hornor of "Science and Technology Advancement Prize" awarded by the National Speed Reducer & Variator Industry Association. We produce planetary gear units, planar double-enveloping worm gear speed reducers (cone worm gear reducer), helical-bevel gear motors, worm gear reducers, helical-worm gear motors, helical gear motors and many other types of gear units. SGR gear motors and gear units have given satisfactory performance in different industrial applications, including metallurgy, mineral, architecture, shipbuilding, petroleum combination, aviation space-flight, lift routing, ...
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