Specialised Air Motors and Transmission
a division of
TONSON Australia Pty. Ltd.

R Series(CR) Inline Helical


Ratios: 1:2 - 1:200
Torque Range (Nm): 32 - 18 000
Power Range: 0.18 - 110kW (0.25-150HP)

Designed and produced According to German Institute for Standardisation (DIN)  which means that high efficiency, high strength and low noise is guaranteed.

Installation and all gearbox dimensions including shaft are retro fit to German brands such SEW EuroDrive and Flender.  Complete with IEC Flange without any additional cost

MHF (CR)- IEC Flange Helical gear units overview:

  • Diverse mountings and installation positions
  • Beautified appearance and lighter in weight
  • Complete cast iron housing for best strength and reliability.
  • Foot Mount is retro fit to SEW Eurodrive and comparable with Flender which mean that you could take off and replace with our gearbox without any hassles
  • Solid output shaft,average efficiency:2-stage 96%, 3-stage 94%, combination 85%
  • Ratios for 2-stage is 5 - 20, ratios for 3-stage is 20 - 120, Combination ratios are also available which means higher ratios are also possible
  • For 2-stage basic gearbox reducer, rotation direction of input shaft is the same that of output shaft; for 3-stage basic gearbox reducer, their directions are reverse
  • Our gearboxes has two input bearing support resulting in much superior radial loads capability
  • Our special Input flange design means that you could easily install IEC or Nema flange motor
  • No Additional charge for IEC or Nema input Flange, they come standard on our gearboxes
  • All our gears are made with the highest precision, as a result it is more quiet and efficient
Product Image

Piston Air Motors

Vane Air Motors

Air Pumps

Industrial Gearboxes

Electric Motors

Power Transmission

DC Motors

T & Cs