ELMAG DM 250 ROHM Three Jaw Lathe Chuck Owner’s Manual
- June 1, 2024
- ELMAG
Table of Contents
RÖHM THREE-JAW LATHE CHUCK
DM 250, DIN 6350
Steel body
Article Number: 88935
EAN Code: 9004853889356
TECHNICAL FACTS
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Reliable, high-quality flat spiral chucks for universal use
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Centrally clamping three and four-jaw chucks to DIN 6350 for high clamping forces and loads due to heavy workpieces, high speeds and high cutting performance
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Very robust cast iron (ZG) or steel body (ZS), low profile
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Round and axial runout according to DIN 6386
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Very good repeatable clamping accuracy
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For use on lathes, rotary tables, dividing heads, etc.
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Through hole for bar machining
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One set each of drilling and turning jaws, hardened and ground:
– 3 or 4 pcs. drilling jaws BB stepped outwards
– 3 or 4 pcs. DB turning jaws stepped inwards -
With clamping wrench and fastening screws
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With cylindrical centring holder (size B, C)
PRODUCT HIGHLIGHTS
Lathe chuck handling
– Smooth-running, quick clamping without particular force
– Clamping jaws adjustable over the entire clamping range, reversible and
exchangeable
– Easy lubrication
Cast body versus steel body
– Cast body models ZG3 and ZG4: slightly cheaper, speed limit
adjusted to permissible peripheral speed for cast iron
– Steel body models ZS3 and ZS4:
High load capacity, significantly more speed
SPECIFICATIONS
| inch | 10 |
|---|---|
| rotational speed max. | 3000 rpm |
| moment of torque at key | 150 Nm |
| total clamping force | 63 kN |
| outer voltage Ø size A1 BB | 5 – 122 mm |
| outer voltage Ø size A2 DB | 5 – 122 mm |
| outer voltage Ø size A3 DB | 73 – 190 mm |
| outer voltage Ø size A4 DB | 131 – 250 mm |
| inside voltage Ø size J1 | 59 – 165 mm |
| inside voltage Ø size J2 | 119 – 263 mm |
| Circulation diameter | 302 mm |
| rotating feed outer diameter | 250 mm |
| centre holding diameter | 200 mm |
| deep centre holding | 5 mm |
| Body height | 82 mm |
| passage drill diameter | 76 mm |
| hole circle diameter | 224 mm |
| centre flange thread | 3 x M12 |
| Jaw length | 90 mm |
| jaw high overstand | 40 mm |
| Wrench width | 12 mm |
| drive high | 26.5 mm |
| Weight | 25.7 kg |
COMPRESSED AIR TECHNOLOGY WELDING TECHNOLOGY METALWORKING STONE CUTTING
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