Zhejiang Shuanghuan Driveline

A Hangzhou gear-making leader whose subsidiary Huandong Technology is a major Chinese RV-reducer maker.

Zhejiang Shuanghuan Driveline (Zhejiang Shuanghuan Driveline Machinery Co., Ltd.) was established in 1980, with its management headquarters in Hangzhou, and listed on the Shenzhen Stock Exchange in September 2010 (ticker 002472); the company describes itself as China's first listed company specializing in gear manufacturing, with customers including ZF, Cummins, and Caterpillar. Its core business is gears for automobiles and new-energy vehicles; in 2020 it established the subsidiary Huandong Technology to make RV reducers — a heavy-duty, high-stiffness precision reducer commonly used at a large industrial robot's joints, such as the waist and upper arm. The RV-reducer market has long been dominated by Japan's Nabtesco, and Huandong Technology is one of the leading Chinese makers pursuing domestic substitution, supplying Chinese industrial robots at scale. Shuanghuan Driveline holds about 61% of Huandong Technology; Huandong Technology's application for a spinoff listing on the STAR Market was accepted in November 2024 but voluntarily withdrawn in September 2026, with its review status now listed as “terminated.”

ExampleThe RV reducer fitted into the base and upper-arm joints of a Chinese-made 6-axis industrial robot may well come from Huandong Technology.

Related

Rotate Vector (RV) Reducer · Speed Reducer / Gearbox · Nabtesco · Domestic Substitution · Industrial Robot

Sources

关于双环｜浙江双环传动机械股份有限公司 (Chinese)
机器人公司IPO收紧？环动科技终止IPO（新浪财经） (Chinese)

As of

2026-09