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The Telwin Mastermig 400 380 V wire welder is a three-phase multiprocess unit that combines power and reliability for MIG‑MAG/FLUX/BRAZING welding, with a current range of up to 400 A and extensive arc voltage adjustments. The machine comes complete with welding accessories and is designed for professional use in workshops, metalwork shops, industrial maintenance and medium-to-heavy fabrication.
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This continuous wire welder features a detachable wire feeder and a large number of arc voltage adjustment steps, allowing uniform, controlled welds on a range of materials, with the option of varying the distance between the wire feeder and the power source using optional extension leads of up to 10 m for greater operating flexibility. The front panel is simple and functional for adjusting current and welding parameters, the thermostatic protection safeguards the system in the event of overheating, and the robust construction is suited to heavy-duty working conditions. The welder has IP22 protection, a sturdy structure, and is supplied with MIG‑MAG accessories for immediate use.
MAIN FEATURES:
– Welding processes: supports MIG‑MAG (with gas), FLUX (gasless) and BRAZING, offering versatility on steel, stainless steel, aluminium and flux-cored wires.
– Power supply: three-phase 230/400 V, 50/60 Hz, ideal for use on robust industrial mains supplies.
– Current adjustment range: from 50 A to 400 A, with maximum DC current 400 A @ 25 % duty cycle and approx. 240 A @ 60 % duty cycle, for prolonged, intensive welding.
– Advanced adjustments: a large number of arc voltage adjustment steps, spot welding time adjustment and two inductance positions to optimise the arc for different techniques and materials.
– Thermostatic protection: safeguards against overheating during prolonged use or demanding duty cycles.
– Compatible welding wires: steel 0,6–1.6 mm, stainless steel 0,8–1.6 mm, aluminium 0,8–1.2 mm, flux-cored wire 1,0–1.2 mm and brazing wire 0,8–1.2 mm, offering wide flexibility across materials.
– No-load voltage: ≤ 45.5 V, for a controlled and safe arc start.
– Wire speed range: adjustable to suit different welding conditions and materials.
– Structure and protection: robust construction, IP22 protection rating and a system designed to last in a professional environment.
– Dimensions and weight: approx. 94,5 × 56,5 × 83 cm with approx. 104 kg, suited to fixed workstations.
APPLICATIONS:
The Telwin Mastermig 400 is suitable for welding in engineering workshops, steel fabrication shops, industrial maintenance, metal construction and medium-to-heavy production, thanks to its ability to handle different materials and thicknesses with a single machine.
Specific References
The Stayer MIG 131 MULTI is a compact inverter welder powered at 230 V, combining MIG welding with gasless flux-cored wire (Flux Core), MMA with coated electrodes and TIG with lift-start (LIFT), offering simple and intuitive adjustment of current and wire speed via analogue controls.
The Telwin Mastermig 275i 400 V wire welder is a three-phase multiprocess inverter machine capable of continuous wire, coated electrode and LIFT-start TIG welding on a wide range of materials such as steel, stainless steel, high-strength steels, aluminium and galvanised sheet. It features a dynamic display for showing the set values, synergic arc control and a 2/4-stroke cycle for MIG/MAG welding.
The Telwin Bimax 150i Synergic is a compact and versatile multiprocess inverter welder, designed for MIG‑MAG, FLUX (no gas) and MMA welding in direct current (DC), with synergic parameter adjustment that makes it easy to use even for less experienced operators and ensures consistent results on steel, stainless steel and flux-cored wire.
The Telwin Technomig 225 is a compact and powerful wire welder, designed for MIG/MAG welding on steel, stainless steel and ferrous alloys, suitable for workshops and professional maintenance, with simple adjustment of wire speed and current.
The Telwin Mastermig 270/2 380 V is a professional continuous wire MIG‑MAG/BRAZING welder with 230/400 V three-phase power supply, designed for gas-shielded welding on steels, stainless steel, high-strength steels and aluminium. Fitted with electronic spot welding time adjustment and 10 current adjustment positions, this unit offers precise arc control and versatility in industrial and workshop use.
The Telwin 801097 TIG Welding Kit is a complete TIG accessory kit designed for TIG welding with suitable inverter or multiprocess welders, providing everything needed to start working with argon gas and achieve clean welds on steel and stainless steel. This kit is ideal as an add-on to the Telwin MIG 131 MULTI 8300838 to extend its capabilities to TIG welding (scratch start), making the machine more versatile for professional and maintenance work.
The Telwin Electromig 400 Synergic 230/400 V wire welder is a multiprocess machine that combines MIG‑MAG, FLUX/BRAZING, MMA and TIG DC‑Lift functions with a 4-roller wire feed unit and One Touch synergic adjustment to make setting the welding parameters easier, offering high performance, a stable arc and great adaptability to different working conditions.
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