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Type 312 series semi-universal dividing head is one of the most important attachment for milling machine. It can be used for simple sindexing and divide circle into any equal parts, etc.
The 312 series with right handwheel.
Accessories:
Tailstock
Center
Dividing plate
Flange
3-jaw chuck
Round table(optional)
The 312 series with right handwheel.
Accessories:
Tailstock
Center
Dividing plate
Flange
3-jaw chuck
Round table(optional)
| Items/Specification | 312100 | 312125 | 312160 | 312200 |
| Center Height mm | 100 | 125 | 160 | 200 |
| Swivel angle of single from horizontal to upward | ≤95° | ≤95° | ≤95° | ≤95° |
| Swivel angle of spindle from horizontal to downward | ≤5 ° | ≤5 ° | ≤5 ° | ≤5 ° |
| Rotating angle of spindle for one complete revolution of dividing handle | 9°(540grad.,1´each) | 9°(540grad.,1´each) | 9°(540grad.,1´each) | 9°(540grad.,1´each) |
| Min.reading of vernier | 10´´ | 10´´ | 10´´ | 10´´ |
| Worm gear ratio | 1:40 | 1:40 | 1:40 | 1:40 |
| Taper of spindle bore | MT3 | MT4 | MT4 | MT4 |
| Width of locating key.mm | 14 | 18 | 18 | 18 |
| Diameter of short taper of spindle nose for mounting flange.mm | Φ41.275 | Φ53.975 | Φ53.975 | Φ53.975 |
| Numbers of hole in dividing plate:1st plate | 24,25,28,30,34,37,38,39,41,42,43 | 24,25,28,30,34,37,38,39,41,42,43 | 24,25,28,30,34,37,38,39,41,42,43 | 24,25,28,30,34,37,38,39,41,42,43 |
| Numbers of hole in dividing plate:2nd plate | 46,47,49,51,53,54,57,58,59,62,66 | 46,47,49,51,53,54,57,58,59,62,66 | 46,47,49,51,53,54,57,58,59,62,66 | 46,47,49,51,53,54,57,58,59,62,66 |
| Individual indexing error of the spindle for one complete revolution of dividing handle | ±45´´ | ±45´´ | ±45´´ | ±45´´ |
| Cumulate error at any 1/4 periphery of spindle | ±1´´ | ±1´´ | ±1´´ | ±1´´ |
| Max.bearing kg | 100 | 130 | 130 | 130 |
| Net weight kg | 57 | 83.5 | 100 | 130 |
| Gross weight kg | 69 | 96 | 114 | 140 |
| Overall dimentions mm | 610*495*255 | 536*460*310 | 710*505*342 | 710*535*342 |