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Contact spot welding sets
MT-1928, MT-3001 and MT-4021 are a series of AC machines that are
designed for heavy use in different production facilities.
| SPECIFICATIONS | MT-1928 | MT-3001 | MT-4021 |
| Electrode travel | rectilinear |
| Supply voltage, V | 380 | 380 | 380 |
| Maximum power during short circuit, kilovolt-ampere | 124 | 242 | 420 |
| Power under PV=50%, kilovolt-ampere | 83 | 160 | 150 |
| Maximum secondary current, kA | 20 | 30 | 40 |
| Rated continuous current, kA | 9 | 14 | 10 |
| Pressure load, daN | 150...680 | 60...1500 | 100...1900 |
| Stick-out distance, mm | 500 | 500 | 500 |
| Electrode clearance, mm | 180...350 | 240...540 | 150...330 |
| Upper electrode travel, mm | 5..30
80 | 5...30
100 | 5...30
100 |
| Cooling water consumption, l/h | 700 | 700 | 80 |
| Free air consumption, m3/100
trav. | 0.17 | 1.3 | 1.15 |
Welded thicknesses:
- low-carbon steel,
mm |
0.5+0.5
to 5.0+5.0 |
0.8+0.8
to 7.0+7.0 |
0.5+0.5
to 8.0+8.0 |
| - stainless steel, mm | 0.5+0.5
to 1.5+1.5 | 1+1
to 3+3 | 0.5+0.5
to 5.0+5.0 |
| - titanium alloys, mm | 0.5+0.5
to 1.5+1.5 | 1+1
to 3+3 | 0.5+0.5
to 5.0+5.0 |
| - aluminium alloys, mm | - | 0.5+0.5
to 1.0+1.0 | 0.3+0.3
to 1.7+1.7 |
| - copper alloys, mm | 0.5+0.5 | 0.5+0.5
to 1.2+1.2 | 0.5+0.5
to 1.5+1.5 |
| - A1, B1 class reinforcement, mm | 4+4
to
16+16 | 6+6
to 25+25 | - |
| - A2, B2 class reinforcement, mm | 6+6
to
12+12 | 6+6
to 18+18 | - |
| Dimensions (LxWxH), mm | 1350x460x1950 | 1580x520x2100 | 1600x560x2450 |
| Weight, kg | 600 | 1000 | 1100 |
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