Mold defect repair machine Electric spark cold welder is a repair equipment invented in the early 21st century. It uses the principle of high frequency electric spark discharge to repair the workpiece without heat surfacing. Because of the welding repair process in the workpiece produces very little heat, and is called cold welder. Cold welding machine through technology import localization has been basically achieved in recent years, has been in domestic die casting defect repair, artifacts, and wear/casting repair market has gained popularity, widely used in mould industry, foundry industry, electrical manufacturing, medical equipment, automobiles, printing, shipbuilding, boiler, building, steel structure, bridge construction and other industries.
The main characteristics of EDM cold welding machine are: small heat affected area, small damage to the base material, no stress concentration, deformation, crack, annealing, quenching, small color difference, simple use, ordinary workers can operate and other advantages. The welding strength of the base material and the repair material is high, which can withstand the mechanical processing such as turning, milling, planing and grinding, and is not easy to fall off. A wide range of metal repair, the vast majority of conductive metal materials can be repaired. In addition, the cold welder is light in weight, can be repaired on site, CNC intelligent adjustment, simple operation.
Based on the sixth generation of SH-M3000/M4000 multi-metal repair cold welding machine Electric spark surfacing machine, Sanhe Company developed and produced a new generation of SH-M3500/M4500 series multi-metal repair cold welding machine, which officially rolled off the production line in January 2022. Sh-m series multi-metal repair cold welder is the first IGBT dual-module inverter technology multi-metal repair cold welder.
The new generation SH-M3500/M4500 Electric spark surfacing machine series cold welder has the following advantages:
A, high power efficiency, energy saving and environmental protection: IGBT inverter power and ordinary frequency (transformer) compared with power saving more than 30%.
Two, full digital control, simple operation, ordinary personnel can master welding skills by simple training.
3. Good repair quality: whether it is repairing aluminum alloy, copper alloy, cast iron and other metal materials, the combination is firm and not easy to fall off.
Four, large power, fast repair speed: the new generation of SH-M series cold welding machine has 3500KVA and 4500KVA two kinds of power for choice, improve work efficiency, save time.
5. Small size, light weight, easy to carry and move.
Electric spark surfacing machine
| Model | SH-M3500 | SH-M4500 |
| Mains input(V) | 110V--220V±15% | 110V--220V±15% |
| Frequency（HZ） | 50/60 | 50/60 |
| Rated input capacity（KVA） | 3.5 | 4.5 |
| Output voltage（V） | 20 ～ 100 | 20 ～ 100 |
| Output power（%） | 1% ～ 99% | 1% ～ 99% |
| Output frequency（Hz） | 100 ～ 999 | 100 ～ 999 |
| Duty cycle（%） | 100 | 100 |
| Open circuit losses （W） | 40 | 40 |
| Insulation grade | F | F |
| Enclosure protection class | IP21 | IP21 |
| Weight（kg） | 13.5 | 14 |
| Overall dimensions （mm） | 450*200*360 | 450*200*360 |
