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.
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 Red RAL 3020 |
Weight
| 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 | YΔ | 145 kg | 170 kg |
| 5,5 kW / 1.500 1/min | YΔ | 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 |