The Tweco ArcMaster 401MST (MIG-Stick-TIG) and 401S (Stick-Lift TIG) are designed to provide enhanced welding performance, portability and durability for mobile and on-site fabrication.
Tweco, an ESAB brand, offers the ArcMaster 401MST (MIG-Stick-Lift TIG) and ArcMaster 401S (Stick-Lift TIG) power sources, which are designed to provide enhanced performance in on-site and portable welding applications.
These units have a 10- to 400-amp output and are engineered to provide enhanced welding performance, especially with cellulose 6010 electrodes and MIG and flux cored wires (401MST). A rugged case protects the units from a 3' drop and, according to a company spokesperson, take up 50% less space than welders with similar outputs. The units measure 16.5" x 8.3" x 17.7". The ArcMaster 401MST weighs 54 lbs. and the ArcMaster 401S weighs 46 lbs.
Automatic primary voltage selection with no mechanical changeover enables the unit to operate off single- or three-phase power, 208-230/400/460 VAC. Combined with 20% better energy efficiency and strong performance when connected to generator power, the ArcMaster 401MST and 401S can be used in markets such as industrial fabrication, power generation, pipe fabrication, shipboard installation and repair, petrochemical fabrication, maintenance and repair and rental.
In addition to adjustable Stick Arc Force and Hot Start control, both units feature dedicated modes to optimize performance for specific processes, including 6010 electrodes, 7018 electrodes and air carbon-arc gouging with carbons up to 3/16". The ArcMaster 401MST also features optimized modes for using 100% CO2 or mixed shielding gases, as well as adjustable inductance control to increase arc stability and reduce spatter. A "Job Save & Load" function allows operators to store and recall up to 10 sets of optimized welding parameters. The ArcMaster 401MST works with all common wire feeder platforms.
ArcMaster welders control the welding process using six micro-controllers that monitor current and voltage at 1.5 million times per second. Further, they use MICOR - MIcrocontroller Controlled Resonant - inverter technology for lightweight, portable welding equipment designed for extreme use.
MICOR benefits include:
- Produces more output from a smaller power source
- Rapid On/Off power control (up to 200 kHz)
- Stores voltage and power so that the unit can provide a fast dynamic response to changing arc conditions
- Allows the use of longer primary power cables (up to 200 yards)
- Uses energy more efficiently.
For more information contact:
Loretta Degasperi
ESAB Welding & Cutting Products
P.O. Box 100545
411 S. Ebenezer Rd.
Florence, SC 29501
800-ESAB-123
ldegasperi@esab.com
www.esab-cutting.com