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Main page » Metal » Sanding Machines » Cylindrical Grinding Machines » Bernardo universal sanding machine URS 800 N
Bernardo universal sanding machine URS 800 N
The URS 800 N universal cylindrical grinding machine features an excellent range of standard accessories which includes an inside grinding device and a 2-axis position display. Designed predominantly for model and tool making, this model is popular for the production of small series.
Features Bernardo universal sanding machine URS 800 N
- Hydro-dynamically mounted main spindle, oil film prevents contact between spindle and bearing
- For conical grinding operations table can be tilted - scale allows precise adjustment to desired position
- Guideways in x- and y-axis are precisely polished and manually finished
- Longitudinal table guide and grinding spindle stock cross guide each feature V- and flat guiding
- Achieve smooth results at various grinding operations due to the precisely adjusted spindle head and solid grinding spindle stock
- Strong reinforcements and generously designed walls make the machine base resistant to temperature fluctuations and deformations
- Oil film between spindle and bearing keeps the vibrations to a minimum to achieve top results and high accuracy
- Longitudinal movement of table is either manual (by hand wheel) or automatic (by hydraulic feed)
- Stepless feed adjustment with selective programmable stop at end of each table movement
- Hydraulic or manual repositioning of grinding spindle stock
- Grinding spindle features bearings on both sides and adjustable sliding flat grids
- Swivelling spindle stock (up to 180°) for inside grinding operations
Standard accessories Bernardo universal sanding machine URS 800 N
- 2-axis digital readout ES-12 H with LCD-display
- Grinding wheel
- Grinding wheel flange
- 3-jaw chuck 200 mm
- Frequency inverter
- Open rest
- Closed rest
- Inside grinding device
- LED machine light
- Balancing stand
- Balancing arbor
- 2 dead centers
- Coolant device
- Splash guard
- Grinding wheel dresser
- Workpiece carrier
- Tools
Technical specifications Bernardo universal sanding machine URS 800 N
Distance between centers | 800 mm |
Center height | 135 mm |
Outside grinding diameter | 8 – 200 mm |
Max. workpiece weight | 60 kg |
Inside grinding diameter | 13 – 100 mm |
Inside grinding depth max. | 125 mm |
Table tilting range max. | +3° to -7° |
Table longitudinal travel max. | 850 mm |
Table feed | 0,1 bis 4 m/min |
Man. table travel / hand turn | 6 mm/rev. |
Headstock |
|
Spindle speed, stepless | 25 – 380 rpm |
Spindle taper | MT 4 |
Tilting range spindle | 90° |
Grinding headstock |
|
Sanding disc | 400 x 50 x 203 mm |
Spindle speed | 1670 rpm |
Speed inside grinding spindle | 20000 rpm |
Tiltange range grinding headstock | +/- 30° |
Travel of grinding head | 200 mm |
Scale division | 0,005 mm |
Tailstock |
|
Taper of tailstock sleeve | MT 4 |
Travel of tailstock sleeve | 35 mm |
Motor power |
|
Sinding spindle | 4,0 kW |
Working spindle | 0,75 kW |
Machine dimension (W x D x H) | 2900 x 1450 x 1700 mm |
Weight approx. | 2570 kg |
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