Technical ARC OPTeARC EWELD MST R700 & R900

Arc air gouging (CC) Very high output power & duty cycle make these models ideal for carbon arc gouging. The high OCV help maintains a consistent smooth arc regardless of length & built in anti-stick cuts the power in the event of a short down.

MMA Stick electrode welding, (CC) the welding machine’s 88V high OCV facilitates easy welding with various electrodes, including cellulosic types like 6010. Set output amps on the digital display before welding for precision. The superb arc characteristics ensure a smooth weld with minimal spatter. Built-in hot start instantly ignites the arc, and the anti-stick circuit prevents damage during electrode shorts, allowing easy clearance. Adjust the arc force for a more forceful arc and to prevent rod freezing.

TIG welding, (CC) Lift arc tech ensures clean starts. Set amps digitally. TIG welding, with/without a torch switch, allows controlled starts. Torch switch activates output when pressed; without it, output reduces quickly on long arcs. Superb welding characteristics provide smooth, quiet, and stable performance. Adjusting arc force permits higher initial lift arc start current, facilitating large tungsten electrodes for heavy TIG welding.

MIG/MAG welding, (CV) Add a MIG wire feeder for a highly capable welding machine with superior performance. The built-in arc start circuit ensures clean, instant starts. Variable inductance control allows precise tuning. Remote connection provides 24V supply and control for wire feeder. Connect OPTeARC 4 roll drive feeder for full welding control with optional digital display. Alternatively, use welding cables to connect arc voltage wire feeder like TECFEED 350i or TECFEED 450i.

SUB ARC welding, (CC/CV) Add a SUB ARC wire feeder & you have a capable SAW machine. Built in arc start circuit gives clean instant arc starts without ‘machine gunning’. Variable inductance control allows the welding arc to be tuned to suit every operator or application perfectly. Remote connection provides 24V supply for a wire feeder & remote control of the welding power.

Choosing the right industrial welding power source amidst various makes and models can be challenging. High-output options often involve deciding between traditional transformer rectifier types and inverter types.

Traditional transformers, though robust and reliable, suffer from limited welding performance, high size and weight, and excessive power consumption. Inverter machines address these drawbacks with superior welding performance, portability, and low power consumption. However, their complex design and sensitivity to real-world conditions lead to poor reliability and a short lifespan.

Enter OPTeARC machines with unique hybrid chopper technology, combining the best of both worlds. Operating like an inverter but directly on low-voltage welding output, they offer superior performance and reliability. These machines are more portable than traditional transformers but slightly heavier than small inverters. OPTeARC hybrids strike a balance, providing exceptional performance, durability, and energy efficiency, making them a compelling choice for industrial welding applications.

Portability.

Standard models are fitted with 300mm puncture proof solid rubber wheels & steel centred caster wheels at the front. A pull out front handle allows the operator to lift & pull from the front like a barrow. With the large wheels fitted the machine stands 825mm above ground. The rear wheels are positioned to take the bulk of the weight with minimal operator effort. This gives great portability easily clearing small obstacles. The front handle retracts back. Lifting eye points allow easy lifting around sites.

Standard supply, options & accessories

Standard supply for all models;400V 3phase input, 3M mains input lead, 3M work lead, blue panels, 300mm rear wheels, front casters, retractable pull/lift front handle & lifting points.

Options include;different input voltage, validation for EN1090, TIG HF functions & gas solenoid built in.

Accessories include;Electrode lead & holder, MIG wire feeder suitcase type 24V, MIG wire feeder suitcase type inline (across the arc), MIG torches, TIG torch options, remote control units, foot pedal with stop/start & variable amps,