The TecArc Si 303 PRO is a 300 Amp three phase (400V) British built inverter MIG welder. From Technical Arcs professional range of MIG welders, with increased duty cycles, the Si PRO is built for industry.
Ideal for everything from thin sheet metal work to fabrication and agricultural work. Reverse polarity for gasless wires, digital meters and stick welding functionality now come as standard on the Si PRO models, making them truly versatile bits of kit.
A separate wire feed on these models adds extra versatility by allowing the power source to be away from the welding and grinding area and all the dust. The wire feed units are ideal for pulling around on casters or mounting on booms to increase reach. The TecArc S44 wire feeder supplied has a 4 roll all geared drive for smooth wire feed and is fitted with a spool cover as standard. It is fitted on castors as standard and a swivel kit allows the wire feed to rotate if mounted on top of the power source.
Industrial machines, the TecArc Si Pro will weld steel, stainless steel, duplex, hardox, aluminum and alloys. Super smooth welding characteristics with low spatter for perfect welds and instant arc starts without popping. Run from a generator or mains, with auto compensation even for long extension cables or poor supply where voltage drop may be an issue.
A 4 roll wire drive grips the wire better and also helps especially with softer wires such as aluminum.
2 knobs control welding output volts and wire feed speed, which are both infinitely variable unlike their transformer, step regulated predecessors. A stable digital display shows welding power when setting the machine and exact values during the weld.
SUPPLIED AS STANDARD WITH 3M MAINS LEAD, 3M INTERCONNECTING LEAD, 3M EARTH RETURN LEAD, MIG TORCH AND REGULATOR
BRITISH BUILT
When you think of a British built welder, their isn’t a company more renowned for their UK welding machines than Technical Arc, the makers of TecArc. They have been made in the UK for many years and have built a reputation as workhorses. They are simply built to offer maximum lifespan, providing reliability and excellent welding performance. The newer inverter machines are no exception, they are hand built using only the best quality components sourced in the UK wherever possible. Anything that can be made in house is made right in the factory here in the UK – inverter transformers, coils and PCBs.
S44 Wire Feeder
An ergonomically designed handle on top of the wire feeder is positioned perfectly to balance the weight of the wire feed box. Castors are fitted to the bottom of the unit, as well as a swivel kit for maximum maneuverability.
Full welding control is available from the wire feed on the TecArc separate wire feeders. Both weld power and wire feed speed can be controlled from the wire feeder, eliminating the need to walk to and from the power source to change settings. A digital display on the S44 wire feeder shows set values as well as actual values during the weld. The display will also retain the actual amperage for 2 seconds after the weld too.
Interconnection cables are available up to 25 meters in length. They are supplied in a tough rubber sheath for maximum durability and metal clamps at the connections prevent pull out. Intercom can connect to the front or rear of the machine for maximum reach. A storage compartment can hold up to 5m excess cable length.
MULTI PROCESS
The TecArc Si PRO is one power source that does everything:
- MIG/MAG Welding
- MMA (Stick welding)
- DC Lift TIG (TIG weld ferrous materials such as steel and stainless)
- Spool gun interface for welding Aluminum
Main Features:
- British Made
- Genuinely Industrial machines designed to work hard for 25+ years.
- Heavy duty wire spool holder for 15kg or 5kg MIG wire reels – a mechanical brake prevents overrun
- Easy MIG wire loading – accessible just under the lid. Simple
- Robust gas bottle carrier, holder and chain suitable for all bottle sizes
- MIG welding possible of Aluminum, mild steel and stainless steel
- Infinitely variable weld power from 20A to 300A with precision to 1A and 0.1V
- Digital display shows settings prior to welding and precise value when welding
- Super smooth MIG welding with low spatter and instant arc starts
- All metal geared wire drive system ensures perfect wire feeding of all sizes and types of wire
- Ready to plug in a spool gun for easy aluminum welding
- Ready to plug in a TIG torch with switch & gas control with adjustable post flow (DC TIG Only)
- Unique ARC TUNE control allows full control over welding characteristics – variable inductance to dial out spatter, softer arc, super soft, harder fast arc, arc force on stick welding etc.
- Reversible polarity, 2T/4T trigger latching, adjustable burn back and adjustable post flow gas
- Auto compensation for extension cables up to 100m & unstable or poor mains input supply
- Generator friendly with built in over and under voltage protection
- Efficient TecArc design – Low power consumption and decreased running costs. 12 – 20W standby power
- Supplied on wheels and casters – perfect for maneuverability around the work shop
- Rugged power source case design with galvanized chassis and front panel protection
- High duty cycles
- Cooling chambers keeps dust and fume ingress away from electronic parts – increases longevity.
- Industry standard euro connector with all brass construction – use your favorite torch.
- Built to comply with BS EN60974-6, BS EN50199, RoHS directive, & CE marked.
Rugged reliable compact MIG machines with simple no nonsense controls. Great welding performance, simple build & easy maintenance, everything you want from a machine designed to weld & nothing you don’t want.