Klindex Expander 850RX

Remote-Controlled Floor Grinding Machine

Model:  Expander 850RX

Application:  Floor Grinding and Polishing




Radio Control Included.

Remote-controlled Planetary floor grinder with variable speed and adjustable working pressure.


Expander 850RX is a Remote-controlled grinding and polishing machine for medium-sized surfaces available in two versions - 20HP and 25HP motors.










Main Features:

  • With the included remote control, it is possible to control all the working functions such as:
    • Speed and direction of the machine
    • Speed of the planetary
    • Planetary turning directions
    • Control of grinding head pressure
    • Drift control
    • Emergency safety stop


 Other 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.
  • Battery powered for independent traction when unplugged.
  • Auto levelling Planetary System.


 Additional Features:

  • To maintain safety and avoid work related emergencies, the machine is engineered to be driven manually using the included handle and unlocking traction wheels.



Expander 850RX 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 850RX Technical Data

Model SeriesMotorDrive
VoltHertzAmpereTool SpeedWorking
Tool SizeWater TankDimension
(LxAxP cm)
Expander 850RX20HP15kW380-48050/6032300~1300rpm850mm3 x 240mm46 Liters150 x 150 x 95474 Kgs
Expander 850RX25HP18.5kW380-48050/6032300~1300rpm850mm3 x 240mm46 Liters150 x 150 x 95484 Kgs