The URS 500 N universal cylindrical grinding machine is suitable for outside grinding operations up to 200 mm in diameter. The machine comes complete with an inside grinding device to increase the application range significantly. Most commonly this model is used in machine construction, tool and mould shaping and in the production of small series.
Features Bernardo universal sanding machine URS 500 N
- Table can be tilted for conical grinding operations and scale allows adjustment to desired position
- Spindle stock can be swivelled 180° for inside grinding operations
- Main spindle is mounted hydro-dynamically – oil film prevents contact between spindle and bearing
- Longitudinal table guide and grinding spindle stock cross guide feature V- and flat guiding each
- Strong reinforcements and generously designed walls make the machine base resistant to temperature fluctuations and deformations
- Oil film between spindle and bearing reduces the vibrations to a minimum to achieve top results and high accuracy
- Stepless feed adjustment with selective programmable stop at end of each table movement
- Precisely adjusted spindle head and solid grinding spindle stock to achieve top processing results at various grinding operations
- Precisely polished and manually finished guideways in x- and y-axis
- Hydraulic or manual resetting of grinding spindle stock
- Longitudinal movement of table is either manually by handwheel or automatically by hydraulic feed
- Grinding spindle features bearings on both sides and adjustable sliding flat grids
Standard accessories Bernardo universal sanding machine URS 500 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 500 N
|
Distance between centers |
500 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 -9° |
|
Table longitudinal travel max. |
600 mm |
|
Table feed |
0,1 bis 4 m/min |
|
Man. table travel / hand turn |
6 mm/rev. |
|
Headstock |
|
|
Spindle speed, stepless |
25 – 220 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) |
2150 x 1450 x 1700 mm |
|
Weight approx. |
2170 kg |