Klindex Expander 850

Floor Grinding Machine

Model:  Expander 850

Application:  Floor Grinding and Polishing




Planetary floor grinder with variable speed and adjustable working pressure.


Expander 850 is a grinding and polishing machine with 850mm working section and is one of the most versatile and fast selling machine among the Expander series.  It is available in two versions - 20HP and 25HP motors.







Main Features:

  • Working width 850mm with 3 large size 240mm tools.
  • Speed of tools ranging from 300 to 1300rpm.
  • Automatic adjustment of the working pressure.
  • Strong gearbox with thermo-hardened steel gears for longer life.
  • Adjustable inclination of the Planetary to allow a bigger frontal cutting.
  • No noise during the operation.
  • Third insertable front wheel for easy transport and loading into van.
  • Auto levelling Planetary System.



Expander 850 Estimated Production

ProcessStepsOutput (m2/hr)
Superconcrete7 25~30
Concrete Grinding1100~130
Terrazzo Polishing530~40
Resin Removing1100~150
Varnish Removing1100~150
Marble Polishing520~30
Granite Polishing710~15
* Production numbers may vary according to surface condition, diamonds used, equipment operator, etc.



Insertable third front wheel makes the unit manageable.

Expander 850 Technical Data

Model SeriesMotorDrive
VoltHertzAmpereTool SpeedWorking
Tool SizeWater TankDimension
(LxAxP cm)
Expander 85020HP15kW380-48050/6032300~1300rpm850mm3 x 240mm46 Liters150 x 150 x 95441 Kgs
Expander 85025HP18.5kW380-48050/6032300~1300rpm850mm3 x 240mm46 Liters150 x 150 x 95451 Kgs