72730 contact belt grinding and polishing machine

The contact belt grinding and polishing machine of the 72730 series is a versatile belt grinding and polishing machine with motor outputs from 2.2 to 5.5 kW.

The 72730 series is a universal machine for industrial use due to its double-sided design with optional combination of belt grinding and polishing, belt grinding only or polishing only.

Standard sanding belts with a length of 3,500 or 4,000 mm and a maximum width of 100 mm can be used on the machine. The maximum contact wheel dimensions are 450 x 100 mm with a bore of 35 mm.

Only with aluminium protection hood and pindle equipment for aluminium processing!


Product features

  • Stand version with 2 stand heights
    630 mm for seated activity
    900 mm for standing activity
  • Three-stage V-belt drive
    The speed is controlled by a three-stage V-belt drive and offers a high degree of flexibility. Optional three spindle speeds possible at motor speed 1,500 rpm.
  • Optional Frequency Converter
    A frequency converter is available as an option, with which the speeds can be infinitely varied from 900 – 2,800 rpm.
  • Space-saving design
    The vertical arrangement of the belt guide and the belt protection hoods results in a very space-saving design, which makes it possible to set up several machines in a very confined space.
  • Special equipment for aluminium and magnesium grinding
    For the grinding of aluminium, we optionally offer you additional equipment that meets the requirements of BGR 109 – the former ZH 1/32 (guideline for the prevention of dust fires and dust explosions during grinding, brushing and polishing). This machine is available in a special version for grinding magnesium. It complies with BGR 204 guidelines.
  • Main switch with motor protection and undervoltage tripping
  • Comprehensive range of accessories
    The accessories on offer also offer you the possibility of quick conversion to other applications.
  • CE Conformity
    Legal conformity is a matter of course for us and has just as high a priority as the long-term, targeted and high manufacturing quality of our products.

Technical data

Tape size Max. 100 x 3.500 mm or
Max. 100 x 4.000 mm
Belt speed Dependent on machine speed and contact wheel Ø
Wave-Ø 35 mm
Max. contact wheel-Ø 450 mm
Max. polishing discs-Ø 500 mm
Motor power
(pole change)
2,2 to 5,5 kW
Voltage 400 V, 50 Hz, Dr.
Motor/Spindle speed 1.500 1/min; 1.500/3.000 1/min
Mode S1, IP 54
Dimension See sketch
Color Grey RAL 7040


Performance Switch Seated Standing
2,2 kW / 1.500 1/min direct 135 kg 160 kg
3,0 kW / 1.500 1/min direct 140 kg 165 kg
4,0 kW / 1.500 1/min 145 kg 170 kg
5,5 kW / 1.500 1/min 155 kg 180 kg
2,6 kW / 3,1 kW 1.500 1/min / 3.000 1/min pole switch 150 kg 175 kg
3,7 kW / 4,4 kW 1.500 1/min / 3.000 1/min pole switch 155 kg 180 kg