Guomao Reducer - 江苏国茂减速机股份有限公司

Guomao Reducer, formally Jiangsu Guomao Reducer Co., Ltd., is a Chinese manufacturer of industrial gear reducers and geared motors headquartered in Changzhou, Jiangsu province. The company was founded in 1993 and has grown into one of China's larger independent reducer makers, reporting roughly 2,665 employees. Guomao listed on the Shanghai Stock Exchange on June 14, 2019 under ticker 603915, trading publicly as Guomao Gufen.

The company's core business is general-purpose power transmission equipment: helical gear reducers, helical-worm gear reducers, spiral bevel gear reducers, and hard-tooth-surface gearboxes used to step down motor speed and increase torque inside industrial machinery. Guomao markets its products to what it describes as more than 300 industry sub-sectors, spanning materials handling, metallurgy, chemical processing, mining, construction machinery, food and beverage production, and general factory automation, positioning its reducer line as a domestic substitute for imported German and Japanese gearboxes.

In addition to its legacy industrial reducer catalog, Guomao's GNORD brand supplies precision planetary reducers aimed at the humanoid-robot joint market, a newer product line responding to rising Chinese demand for compact, high-precision actuators in robot arms and legs. Published technical material for this line describes helical planetary gear sets with carburized and hardened tooth surfaces rated at 58 to 62 HRC, an IP65 ingress-protection rating, and reduction ratios customizable across a 30-to-160 range, features aimed at the backlash and load requirements of robot joint actuators rather than the coarser tolerances of conventional industrial gearboxes.

Guomao operates through a network of regional subsidiaries and sales offices across China alongside its Changzhou headquarters and production base on Longjiang Road in the Changzhou Economic Development Zone, and has been recognized in China as a specialized-and-innovative ('little giant') enterprise for its focus on import substitution in the reducer and gearbox segment. As a publicly traded manufacturer, Guomao discloses financial results through its Shanghai Stock Exchange filings, including semi-annual and annual reports that break down revenue by reducer product family. Public company filings and stock-exchange listing records, rather than direct disclosure on its own corporate site, were the primary sources used to confirm headcount, listing date, and registered address here, since large portions of the company's own website could not be retrieved by automated means at the time of this review.