Metallurgical Gearbox

In 2001, Chongqing Gearbox Co., Ltd., cooperating with SMS Demag Aktiengesellschaft, successfully manufactured the rough and finish rolling main reducers and pinion gear units for the 1700 hot rolling line of Benxi Steel and Iron Group Corporation, total weight more than 900 tons, including unit weight of E1 reducer, R2, and R3 reducers over 180 tons. Their gear wheels with max, module 30, which diameter is up to 3750mm and max, face width is 2x800, are carburiesd and casehardened, and tooth accuracy reaches DIN-6 grade, checked and accepted according to SMS SN200 specification. The successful localization of this project has drawn great attention in the domestic metallurgical industry. Since then, the company successively provided main driving reducers, pinion gear units and pendulum shear gear units for the 1680 hot rolling lines of Tangsan Steel and Iron Corporation, for the 1750 hot rolling line of Lianyuan Steel and Iron Corporation, for the 1+4 hot rolling line of Southwest Aluminium Group Corporation and hot rolling lines of Tangsan Jianlong, Benxi Beitai, Xintai Delong, Handan Zhongheng and other steel works. Besides these hot rolling lines, the company delivered various reducers to the 1800 cold rolling line of Shanghai Baosan Steel and Iron Group Corporation, the Yichang thin sheet cold rolling line of Shanghai Baosan Steel and Iron Group Corporation, the 285 prefine-rolling line of Panzhihua Steel and Iron Corporation, and the high-speed wire rolling line of Jiuquan Steel and Iron Corporation, Anyang Steel Works, Changcheng Steel Works, POMINI Corporation, Maansan Steel Works, Weiyuan Steel Works, Pingxiang Steel Works and other steel works. A large number of the company's reducers are used in various areas such as the 2050 and 1580 production line of Shanghai Baosan Steel and Iron Group Corporation, The Third Melling Works of Wuhan Steel and Iron Corporation, the sinter metal line of Chongqing Steel and Iron Corporation and the seamless steel tubing line in Chengdu. The company has made great contributions toward the localization of metallurgic equipment in China.

Products
1. The Reducer for the 1700 Hot Rolling Line of Benxi Steel and Iron Group Corporation
2. The Strain Alignment Reducer for Shanghai Baosan Steel and Iron Group Corporation
3. The Reducer for High-speed Wire Rolling Mill exported to POMINI Corporation, Italy
4. The Reducer for Pendulum Shear Gear Unit of Tangsan Steel and Iron Corporation
5. Reducer for Rolling Mill of Lianyuan Steel and Iron Corporation
6. The Reducer for Yichang Thin Sheet 3# Rolling Mill of Shanghai Baosan Steel and Iron Group Corporation