Multi-segmented ring gear drive (spur and helical)


  • High availability and dependability
  • Advanced materials like Austempered Ductile Iron (ADI)
  • Optimum strength / weight ratio
  • Long life with high resistance to fatigue and wear
  • Optimal for applications of from 3 meters in diameter and up
  • Easy to transport and install in isolated and remote locations
Technical data


  • Gear unit sizes 50 - 160
  • Ratios 20 - 4000 (possible up to 1800)
  • Standard nominal power range 12-1,000kW (special designs up to 4950kW)
  • Nominal torque range 40 - 1010kNm
  • Diameter 3m and up, no upper limit
  • Ratios 5-10, case-by-case
  • Nominal power range up to 1MW / pinion (special designs up to 5MW / pinion)
  • Nominal torque range up to 9000 Nm / pinion on a kiln centerline
Gearboxes from kilowatt to multi-megawatt

Weight ( kg): 3 000-50 000

Ratio: 20-120

Generator rated output (kW): 500-3000>

Rotor diameter ( m): 28-150

Gearbox type: Planetary, Helical, Planetary-Helical