Welding & Cutting Machines
Welding Machines are the technical core of metal joining in industry and construction. Machines differ by process: SMAW (shielded metal arc), MIG/MAG (gas metal arc), TIG (gas tungsten arc), plasma (plasma arc for cutting and fine cutting), multi-process welding machines, and resistance spot welders. Selection follows metal type, plate thickness, production rate, and operating environment.
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Welding processes differ fundamentally in physics and application. SMAW (stick) machines use a consumable coated electrode and need no external shielding gas, serving on-site maintenance and outdoor work in wind at 50-500 A. MIG/MAG machines use a continuously-fed consumable wire with inert (argon) or active (CO2) shielding gas and deliver high productivity in series fabrication, but need protection from drafts and wind to keep shielding gas on the arc. TIG machines use a non-consumable tungsten electrode with a hand-held filler rod and pure argon shielding, producing high-quality welds on sensitive metals such as aluminum, stainless steel, and titanium. Plasma cutting machines use a plasma arc of compressed gas to cut metals 1-50 mm thick quickly and cleanly. Multi-process machines combine 2-4 processes in one unit with software switching, used in workshops with varied jobs. Spot welders join thin sheets by electrical resistance and pressure rather than an arc. Selection considers duty cycle (40%/60%/100%), power supply (single or three phase), portability, and IP dust rating. Specifications follow AWS and EN 60974.
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Welding processes differ fundamentally in physics and application. SMAW (stick) machines use a consumable coated electrode and need no external shielding gas, serving on-site maintenance and outdoor work in wind at 50-500 A. MIG/MAG machines use a continuously-fed consumable wire with inert (argon) or active (CO2) shielding gas and deliver high productivity in series fabrication, but need protection from drafts and wind to keep shielding gas on the arc. TIG machines use a non-consumable tungsten electrode with a hand-held filler rod and pure argon shielding, producing high-quality welds on sensitive metals such as aluminum, stainless steel, and titanium. Plasma cutting machines use a plasma arc of compressed gas to cut metals 1-50 mm thick quickly and cleanly. Multi-process machines combine 2-4 processes in one unit with software switching, used in workshops with varied jobs. Spot welders join thin sheets by electrical resistance and pressure rather than an arc. Selection considers duty cycle (40%/60%/100%), power supply (single or three phase), portability, and IP dust rating. Specifications follow AWS and EN 60974.
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