top of page
HDO Series.png



Helical Bevel Heavy Duty Gear Units

When high output torque, robustness reliability and long operating life must be achieved, Bonfiglioli's HDx Series represent the best solution for our custmers needs. Thanks to high quality materials and an optimized design, HD Series can operate in the harshest environemt, as well as in explosive atmospheres, with low maintenance costs and long time service intervals. The output shaft can be chosen both in the parallel (HDP) or right angle(HDO) configuration and to always ensure the minimization of mounting space. HDx Series, furthermore, can be deeply customized thanks to an extremely wide options and accessories portfolio, thus matching most of the requirements of a large applications number.

Torque range HDO Series.png
  • Key benefits

    • Highly transmissible power

    • Robustness

    • Mounting flexibility

    • Reliability

    • Usable in explosive environments

  • Main options

    • Fan cooling, cooling coil, oil heater

    • External cooling unit

    • Backstop

    • Forced lubrication

    • Temperature and oil level sensors

    • Drywell

    • Taconite seals

    • ATEX certification for explosive 

  • Torque range

    • 8,990 ... 209,000 Nm

  • Gear ratios

    • 5.6 ... 490

  • Output

    • Single/double-sided solid input shaft (metric or inch dims)

    • Keyed hollow shaft

    • Shrink disc

  • Motors

    • Input with solid shaft

    • Input with e-motor coupling:

      • BN, BE, BX [IEC asynchronous]

      • BSR [IEC reluctance]

  • Motor options

    • Thermistors and thermostat sensors

    • Independent forced cooling

    • Incremental, sin/cos absolute single/multi-turn encoders

    • Tropicalization

    • Anti-condensation heaters


  • Unloading

  • Crushing

  • Handling

  • Feeding

  • Stacking & Reclaiming

  • Dewatering

  • Floatation

  • Deck Machinery

  • Loading/Unloading material

  • Roller Conveying

  • Vertical Conveying

  • Floatation

  • Key features

  • Spheroidal cast iron housing

  • I/O shaft planarity and gearbox symmetry

  • Wide range of options and accessories

  • High design standard 

  • Atex - gearbox for explosive environments 2G/2D

bottom of page