Portal lathes have been designed and manufactured specifically for machining wheelsets. Among others, the following requirements have been taken into account for the design of the machine:
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DPL |
DPL-HT |
DPL-J |
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WHEELSET CHARACTERISTICS |
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|
|
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Track gauge |
mm |
1000/1676 |
1000/1676 |
1000/1676 |
|
in |
39.5/66 |
39.5/66 |
39.5/66 |
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|
Axle length |
mm |
1600/2600 |
1600/2600 |
1600/2600 |
|
in |
63/102 |
63/102 |
63/102 |
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Wheel Ø |
mm |
640/1400 |
640/1400 |
640/1400 |
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in |
25/55 |
25/55 |
25/55 |
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Profile width |
mm |
80/135 |
80/135 |
80/135 |
|
in |
3/5 |
3/5 |
3/5 |
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|
Brake disc machining |
-- |
√ |
√ |
√ |
|
Max. axle load |
kg |
5000 |
5000 |
5000 |
|
lb |
11023 |
11023 |
11023 |
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MACHINE CHARACTERISTICS |
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Main drive power |
kW |
115 |
150 |
162 |
|
hp |
154 |
201 |
217 |
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Chip section |
mm2 |
18 |
22 |
35 |
|
in2 |
0.028 |
0.035 |
0.055 |
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INSTALLATION DATA |
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Machine weight |
kg |
52600 |
54000 |
55000 |
|
lb |
116000 |
119050 |
121255 |
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ACCURACY |
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Wheel Ø difference |
mm |
≤ 0.15 |
≤ 0.15 |
≤ 0.15 |
|
in |
0.006 |
0.006 |
0.006 |
|
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Radial run-out |
mm |
≤ 0.1 |
≤ 0.1 |
≤ 0.1 |
|
in |
0.004 |
0.004 |
0.004 |
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Lateral run-out |
mm |
≤ 0.2 |
≤ 0.2 |
≤ 0.25 |
|
in |
0.008 |
0.008 |
0.01 |
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Wheel profile geometry |
mm |
≤ 0.2 |
≤ 0.2 |
≤ 0.2 |
|
in |
0.008 |
0.008 |
0.008 |
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MACHINE ARQUITECTURE |
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Roll through type |
-- |
√ |
√ |
√ |
|
Machine type |
-- |
Rollers type |
Rollers type |
Jaws type |