The Schellenberg Reduction Gear MAXI supports you when opening and closing heavy roller shutters by hand. It decreases the amount of force needed to open and lower the shutters by approx. 50%. You can use the reduction gear from Schellenberg for a roller shutter area of 48 ft². In addition, all you need is a roller sleeve MAXI for octagonal shafts (It. No. 80500). During installation the reduction gear is slipped onto the elongated steel pin of the roller sleeve.



  • For heavy roller shutters starting at an area from 48 ft²
  • Reduces the force required to open and close the shutters by approx. 50%
  • The belt pulley is made of long lasting and weather resistant plastic
  • Functions in conjunction with a roller sleeve on the existing octagonal shaft (It. No. 80500)
  • Diameter: 182 mm
EAN Number 4003971543008
Diameter (mm) 182 mm
Roller shutter system MAXI
Color white

Product in use


  • Provides help when opening and closing heavy roller shutters
  • For heavy roller shutter with an area of 48 ft²
  • Reduces the force by about 50%
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