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QUICK OVERVIEW
The DNG270X800 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.
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TECHNICAL SPECIFICATIONS
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Distance between centers |
800 mm |
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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. |
+3° to -7° |
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Table longitudinal travel max. |
850 mm |
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Table feed |
0,1 bis 4 m/min |
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Man. table travel / hand turn |
6 mm/rev. |
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Headstock |
|
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Spindle speed, stepless |
25 – 380 rpm |
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Spindle taper |
MT 4 |
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Tilting range spindle |
90° |
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Grinding headstock |
|
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Sanding disc |
400 x 50 x 203 mm |
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Spindle speed |
1670 rpm |
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Speed inside grinding spindle |
20000 rpm |
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Tiltange range grinding headstock |
+/- 30° |
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Travel of grinding head |
200 mm |
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Scale division |
0,005 mm |
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Tailstock |
|
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Taper of tailstock sleeve |
MT 4 |
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Travel of tailstock sleeve |
35 mm |
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Motor power |
|
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Sinding spindle |
4,0 kW |
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Working spindle |
0,75 kW |
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Machine dimension (W x D x H) |
2900 x 1450 x 1700 mm |
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Weight approx. |
2570 kg |
FEATURES
- 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:
- 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