Vertical turning and grinding machine for brake drums, brake discs and other workpieces
HIGHLIGHTS
- Vertical design:
All workpieces can be clamped and centered accurately on the horizontal worktable without any problem. The weight of the workpiece is distributed uniformly. - Technically up-to-date through “intermittent feed”
- Continuously variable spindle speeds and feeds
- Surface grinding with cross hatched finish
APPLICATIONS
- Grinding of brake drums of trucks, trailers and buses
- Grinding of brake drums of trucks, trailers and buses
- Turning of brake drums of industrial trucks, vans and cars
- Turning of brake discs of industrial trucks, vans and cars
- Turning and grinding of flywheels of trucks and buses
- Turning and grinding of flywheels of industrial trucks, vans and cars
- Turning of brake linings off the trucks, trailers and buses
The development and manufacture of vertical turning and grinding machines is a HUNGER speciality. We have been active in this field for more than 60 years. More than 5000 satisfied users of HUNGER vertical turning machines have endorsed this principle.
- Technically up-to-date through “intermittent feed”
- Advantages of the vertical design:
All workpieces can be clamped and centered accurately on the horizontal worktable without any problem. The weight of the workpiece is distributed uniformly. - The U 305 is designed for universal applications, as well as for easy and convenient operation. It is precise in its operation and has a nearly unlimited life. The main spindle is carried on taper roller bearings fitted for life.
- Continuously variable spindle speeds and feeds
- Longitudinal and transversal feeds each in both directions (in and out)
- LCD position displays (optional)
- The powerful and effective dust and chip extraction provides a healthy and clean workstation
- Surface grinding with cross hatched finish
| Capacity | |
| Max. wheel-Ø | 1400 mm |
| Max. turning Ø | 1210 mm |
| Min. turning-Ø | 150 mm |
| Min. grinding Ø | 260 mm |
| Max. turning and grinding depth | 350 mm |
| Max. brake disc Ø | 600 mm |
| Max. brake disc thickness | 60 mm |
| Max. radial width of machined brake disc surface | 130 mm |
| Max. Ø of flywheel | 600 mm |
| Min. Ø of flywheel | 300 mm |
| Vertical adjustment travel | 730 mm |
| Horizontal adjustment travel | 520 mm |
| Spindle speeds and feeds | |
| Speed of spindle, steplessly | 20 - 120 Upm |
| Grinding spindle speed at contour grinding | 4500 rpm |
| Grinding spindle speed at crosshatch grinding | 2800 Upm |
| Intermittend feed, steplessly variable forward and reverse, up and down | 0 - 0,4mm/U |
| Electrical equipment | |
| Connected load | 2,6 kW |
| Voltage | 400 V |
| Type of current | Three-phase current |
| Frequency | 50 Hz |
| Power supply fuse rating | 16 A |
| Type of enclosure | IP 54 |
| Power of individual motors Main spindle motor | 1,5 kW |
| Grinding spindle motor | 1,1 kW |
| Dimensions and weight | |
| L x W x H | 1,75 x 0,77 x 1,72 m |
| Space required by machine and working area | 2 x1,5 m |
| Weight Maschine mit Standard-Zubehör einschl. Verpackung | approx. 900 kg |
| Dust extraction | |
| Min. volumetric flow rate | 150 m3/h |
| Suction hose ⌀ | 32 mm |
| Noise emission | Der nach DIN EN 31201 in 1 m Abstand von der Maschinenoberfläche im Freifeld bei max. Volumenstrom gemessene arbeitsplatzbezogene Emissionswert betrug 86 dB(A) unter Vollast. |
