意大利TECNA点焊枪7902
多功能便携式汽车修理厂和维修车间点焊机。
同步内置电子定时器与SCR从2至65个周期。
补偿电路只有在有适当电流通过时才启动计时器，这使得能够在有油漆残留物的表面上或在黑色薄片上执行氧化板。
电流控制采用相移调节，以非常薄的厚度，在不锈钢板和类似的不锈钢上进行直径很小的焊接。
CO-FI控制。
丹的尺度调整力。
额外的臂联轴器在臂之间提供较大的开口。
所有变压器都涂有F类绝缘材料。使用4000伏特进行测试。
提供完整的125毫米***。
大量选择手臂和电极。
脉动焊接时间控制可用（P版本）
| ITEM | 7900 | 7902 | 7903 | |
| Synchronous timer with SCR | • | • | • | |
| Time adjustment | cycles | 2-65 | 2-65 | 2-65 |
| Current adjustment 40-100% | - | • | • | |
| Cooling | Air | Air | Water | |
| Supply voltage 50Hz * | V | 400 | 400 | 400 |
| Nominal power at 50% | kVA | 2 | 2.5 | 6 |
| Maximum welding power | kVA | 13 | 16 | 16 |
| Short circuit current with arms L= |
kA mm |
7.2 125 |
8.2 125 |
8.2 125 |
| Thermal current 100% | A | 610 | 700 | 1700 |
| No load secondary voltage | V | 2.3 | 2.5 | 2.5 |
| Insulation class | F | F | F | |
| Cables section for L<15 m | mm2 | 2.5 | 2.5 | 2.5 |
| Delayed fuses | A | 16 | 16 | 16 |
| Standard arms throat depth L | mm | 125 | 125 | - |
| Max. electrode force with arms L= |
daN mm |
120 125 |
120 125 |
120 125 |
| Arms gap | mm | 96 | 94 | 94 |
| Max. electrodes stroke with arms L= |
mm mm |
55 125 |
55 125 |
70 150 |
| Water cooling | l/min | 2.5 | 3.7 | 3.7 |
| Water max. pressure | bar | - | - | 2.5 |
| Aerial noise produced | dB(A) | < 70 | < 70 | < 70 |
| Level of vibrati*** | m/s2 | < 2.5 | < 2.5 | < 2.5 |
| Measure conditi*** | ||||
| welding time | cycles | 14 | 14 | 20 |
| welding current | kA | 5 | 5 | 6 |
|
working rating in welds/min |
2 |
2 |
6 |
|
| Mains cable length | m | 3.8 | 3.8 | 3.8 |
| Net weight with arms 125 mm | kg | 10.5 | 11 | - |
| Net weight with arms 150 mm | kg | - | - | 12 |
| Net weight with arms 500 mm | kg | 13 | 13.5 | 13.6 |