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
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Outside grinding diameter
|
8 – 200 mm
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Max. workpiece weight
|
60 kg
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Inside grinding diameter
|
13 – 100 mm
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Inside grinding depth max.
|
125 mm
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Table tilting range max.
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+3° to -7°
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Table longitudinal travel max.
|
850 mm
|
Table feed
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0,1 bis 4 m/min
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Man. table travel / hand turn
|
6 mm/rev.
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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
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1670 rpm
|
Speed inside grinding spindle
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20000 rpm
|
Tiltange range grinding headstock
|
+/- 30°
|
Travel of grinding head
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200 mm
|
Scale division
|
0,005 mm
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Tailstock
|
|
Taper of tailstock sleeve
|
MT 4
|
Travel of tailstock sleeve
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35 mm
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Motor power
|
|
Sinding spindle
|
4,0 kW
|
Working spindle
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0,75 kW
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Machine dimension (W x D x H)
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2900 x 1450 x 1700 mm
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Weight approx.
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2570 kg
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