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The high accuracy universal engine lathes are intended for broad range of turning works: outer turning and boring of inner cylindrical and conical surfaces, drilling, core-drilling and reaming as well as cutting of external and internal met-ric, inch, modular and pitch threads.
The machines to be produced with the 1000 mm distance between centers (16ÂÒ20Ð-21) and 1500 mm (16DN20H-22).
Structural features:
- Design of the machines and their structural features provide high-quality treatment of parts of various materials by advanced cutting tools at optima cutting speeds.
- High precision spindle with the 57 mm hole.
- 4-positions rigid tool post.
- Heat treated ground bed guides to provide long service life and raised treatment accuracy.
- Mechanical friction clutch.
- Pneumoloading of tailstock.
- The apron has an its own drive of carriage and support rapid travel, en-ables to operate with the rests with the automatical feed s switching off when the contact with the vest of the moment of load increasing on the rack pinion.
- The feed box has the high rigidity of gear train and enables to realize the threads cutting of 11 and 19 threads per inch without changing of train gears.
- Guards of cutting and chuck zones, electrical and mechanical interlockings guarantee the safety operating a machine.
| Maximal diameter of blank to be treated, mm |
| - above bed |
500 |
| - above support |
275 |
| Maximal length of blank to be installed, mm |
1000, 1500* |
| Diameter of spindle hole, mm |
57 |
| Maximal height of cutting tool to be installed on the ma-chine, mm |
25 |
| Maximal travel length of support toolslide, mm |
150 |
Maximal length of carriage travel:
Longitudinal (cross), mm |
935, 1435*, (285) |
| Maximal travel of tailstock quill, mm |
150 |
| Limits of spindle rotational speeds, rpm |
12,5-1600 |
| Number of speeds of forward (reverse) |
24 (12) |
| Limits of support working feeds, mm/rev |
| - longitudinal |
0,05...2,8 |
| - cross |
0,025...1,4 |
| Number of support longitudinal (cross) feeds |
24 (24) |
| Limits of pitches of threads to be cut: |
| - metric, mm |
0,5...112 |
| - inch; number of threads per 1 |
56...0,5 |
| - modular, module |
0,5...112 |
| - pitch, pitch |
56...0,5 |
| Speed of support rapid travels, m/min |
| - longitudinal |
3,8 |
| - cross |
1,9 |
| Spindle maximal torque, KNm |
1,0 |
| Power of primary motion drive, KW |
11,0 |
| Overall dimensions of the machine, mm: |
2800, 3300*x1265x1505 |
| Weight of the machine, kg |
3000, 3250* |
* - for 16ÂÒ20Ð-22 machines.
To be come complete with machines:
- Driver plate.
- Follower rest.
- Rear tool post.
- Holder for the centering tool.
- Bushing rest.
- Micrometrical multi-positional stop of cross stroke.
- Micrometrical stop of cross stroke.
- Micrometrical rigid stop of longitudinal stroke.
- Steady rest.
- Set of change gears (when the straight threads cutting).
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