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The presses are designed to perform all kinds of free forging operations from carbon, alloyed and special steels and also some kinds of closed-die forging if they do not necessitate the strict guidance of a moveable cross-head.
The presses are designed to perform all kinds of free forging operations from carbon, alloyed and special steels and also some kinds of closed-die forging if they do not necessitate the strict guidance of a moveable cross-head.
Free forging presses with upper arrangement of main cylinders (push-down presses) are fast-acting and reliable.
Accurate stop of moveable cross-head withing 1.5-2.0 mm allows precision of pieces forged down to the highest class.
The presses have some force modes of operation:
- operation under the gravity action of a moveable cross-head;
- forging by a central cylinder;
- forging by side cylinders with automatic switching on of central cylinder;
- planishing by side cylinders;
- planishing by central cylinder.
The presses may be controlled at three possible modes of operation:
manual, semi-automatic and automatic.
Feed may or may not include ejector and bottom die replacement magazine.
It is possible to deliver one of the presses as a part of an integrated forging plant with computerized control or with a system that ensures synchronized manipulator - press operation.
Drive system of presses is air - and water accumulator station (delivered upon a separate cocntract).
MAIN DATA
Parameters, dimensions |
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Model |
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|
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ПБ 1339 |
ПБ 1341 |
ПБ1343 |
ПБ1345 |
ПА1348 |
Nominal press force, kN |
8,0 |
12,5 |
20,0 |
31,5 |
63,0 |
Maximum travel of moveable cross-head, mm |
900 |
1250 |
1600 |
2000 |
2650 |
Distance between table and moveable cross-head in its topmost position, mm |
2120 |
2650 |
3150 |
4000 |
5600 |
Size of working area (inner distance between columns), mm -across axis of forging -along axis of forging |
1500 710 |
1900 900 |
2240 1120 |
2650 1250 |
4000 1600 |
Overall dimensions of sliding table, mm |
1000х2330 |
1250х2980 |
1600х3830 |
2000х5360 |
3150х8000 |
Travel of sliding table about centreline of press in both directions, mm |
1120 |
1400 |
1600 |
2240 |
3150 |
Number of positions of bottom die replacement magazine |
3 |
3 |
3 |
3 |
4 |
Force of ejector, kN |
400 |
630 |
1000 |
1600 |
2000 |
Travel of ejector over sliding table, mm |
320 |
400 |
560 |
800 |
850 |
Number of strokes of moveable cross-head per min, not less than
- of working strokes |
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|
|
|
|
(at force of 75% of nom. one) |
25 |
22 |
18 |
14 |
10 |
- strokes, mm |
140 |
160 |
200 |
250 |
250 |
-of planishing strokes (at force of 25% of nom. one)
for strokes not less than 20 mm
-of planishing strokes (at force of 12% of nom. one)
for strokes not less than 20 nun |
100
110 |
90
100 |
80
85 |
70
75 |
45
55 |
Working pressure of fluid (water emulsion), mPa |
32 |
32 |
32 |
32 |
32 |
Press height, mm
- total
- over floor level
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9830
6000 |
11410
7270 |
13480
8640 |
16730
11030 |
20910
14300 |
Overall dimensions, mm
-with ejector and bottom die replacement magazine, mm |
15940х11305
15940х12705 |
16950х12100
16950х13740 |
18150х12400
18150х16140 |
23400х13895
23400х19005 |
33000х17000
33000х28500 |
Mass of press including foundation flooring, kg : |
203 000 |
265 000 |
430 000 |
845 000 |
2 200 000 |
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