High Speed Gearbox for Blowers


Being an important equipment in the metallurgy industry, high-speed gearboxes need to meet complex requirements concerning the working conditions, such as offered by NGC.

NGS's high speed gearboxes for blowers are offered as modular series products. They can be customized according to specific operational environments and working conditions.

Technical Data

Range of Center Distance 200 - 800 mm
Range of Ratio 1 - 8
Rotating Speed ≤ 20,000 r/min
Rated Ouput ≤ 25,000 kNm


  • Flexible design available (extended design based on NGGS Series)
  • Customization for different working conditions on request
  • Certified gearbox design and accessories
  • Gear accuracy grade 3 - 5 acc. to ISO
  • Smooth operation
  • Low noise


  • Blowers

Application examples

Lafarge Yunnan Dongjun
Main reducer for MLX280 cement vertical mill used for 4,000T/d cement production lines of Lafarge Yunnan Dongjun Cement Plant, supporting FL Smith OK33-4 vertical mill.

Zhejiang Jinshou Cement Co., Ltd.
Main reducer for MLX200 cement pre-grinding vertical mill used for Zhejiang Jinshou Cement Co., Ltd., supporting CKP vertical mill of Kawasaki.

Main reducer for MLX90 coal vertical mill used for India LANCO 2×660MW coal-fired power plant project, supporting HP series vertical mills by Shanghai Heavy Machinery Co.