The contact belt grinding and polishing machine of the 72711 series is a one-sided machine. It is optionally available as a belt grinding or polishing machine. It is a robust machine that can be used for belt grinding or polishing.
With a motor power of 3.0 to 7.5 kW, the 72711 series is ideal for industrial applications with high stock removal rates. 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.
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-changing) | 3,0 to 7,5 kW |
| voltage | 400 V, 50 Hz, Dr. |
| Possible spindle speed | 700, 800, 900, 1.000, 1.120, 1.250, 1.400, 1.600, 1.800, 2.000, 2.240, 2.500, 2.800 1/min Please select 3 speeds and specify when ordering! |
| motor speed | 1.500 1/min |
| mode | S1, IP 54 |
| dimension | see sketch |
| color | Grey RAL 7040 Red RAL 3020 |
Weight
| Performance | Switch | sitting | standing |
|---|---|---|---|
| 3,0 kW / 1.500 1/min | direct | 155 kg | 175 kg |
| 4,0 kW / 1.500 1/min | YΔ | 160 kg | 180 kg |
| 5,5 kW / 1.500 1/min | YΔ | 170 kg | 190 kg |
| 7,5 kW / 1.500 1/min | YΔ | 185 kg | 205 kg |
Accessories
- Spindle assembly, for aluminium machining
- Frequency inverter for infinitely variable speed control
- brake unit for quick braking of the spindle
- Pneumatic belt tensioning arm
Special versions
- For grinding belt width up to 150 mm or 200 mm
- For polishing wheels up to 200 mm width
- 72711 Mg for magnesium machining