Portable spot welders - Items 7900-7902-7903 - 2-6 kVA
HAND OPERATED SPOT GUN ITEM 7900 - 2 kVA
- Light and proved spot gun for car body repair.
- Synchronous built-in electronic timer with SCR from 2 to 65 cycles.
- Compensation circuit starts the timer only when there is a proper passage of current, which enables to perform on oxidised sheets, on surfaces with paint residues or on black sheets.
- Force adjustment with scale in daN.
- Additional arm couplings to provide larger opening between arms.
- All transformer are coated with F class insulation material that does not dry out and become brittle. Test are made using 4000 volts.
- Supplied complete with 125 mm arms.
- Large choice of arms and electrodes.
HAND OPERATED SPOT GUN ITEM 7902 - 2.5 KVA
- Versatile portable spot welder for auto body repair shops and maintenance shops.
- Synchronous built-in electronic timer with SCR from 2 to 65 cycles.
- Compensation circuit starts the timer only when there is a proper passage of current, which enables to perform on oxidised sheets, on surfaces with paint residues or on black sheets.
- Current control with phase shift adjustment to carry out difficult welds, on very thin thickness, on rods with reduced diameter, on stainless steel sheet and similar.
- Cos fi control.
- Force adjustment with scale in daN.
- Additional arm couplings to provide larger opening between arms.
- All transformer are coated with F class insulation material. Test are made using 4000 volts.
- Supplied complete with 125 mm arms.
- Large choice of arms and electrodes.
Pulsation weld time control available (P version).
WATER COOLED PORTABLE SPOT GUN ITEM 7903 - 6 KVA
- For high operating rate works in car body repair and light production works in Industry.
- Fully water-cooled portable spot gun to be used with arms item 7512 - 7513 - 7514 - 7515 on request.
- Versatile portable spot welder for auto body repair shops and maintenance shops.
- Synchronous built-in electronic timer with SCR from 2 to 65 cycles.
- Compensation circuit starts the timer only when there is a proper passage of current, which enables to perform on oxidised sheets, on surfaces with paint residues or on black sheets.
- Current control with phase shift adjustment to carry out difficult welds, on very thin thickness, on rods with reduced diameter, on stainless steel sheet and similar.
- Cos fi control.
- Force adjustment with scale in daN.
- Additional arm couplings to provide larger opening between arms.
- All transformer are coated with F class insulation material. Test are made using 4000 volts.
- Large choice of arms and electrodes.
Pulsation weld time control available (P version).
TECHNICAL DATA
| 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 vibrations | m/s2 | < 2.5 | < 2.5 | < 2.5 |
| Measure conditions | ||||
| 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 |
* Different voltages and frequencies on request
These welders have been designed to be used for a professional purpose in industrial environments. If the welder is used on public low voltage network which supplies buildings used for domestic purposes.
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Specifications subject to change without notice.