If you’re looking for a portable, hassle free, full-featured spool gun solution for your steel or aluminum welding projects, look no further than Lincoln’s Magnum PRO 250LX GT K3569-2 spool gun for you next in-field welding job. The Magnum PRO 250LX GT connects directly to Red-D-Arc’s new GX330XL (and Lincoln’s Ranger 330MPX) without the need for additional adapters or control boxes. It’s simply a matter of attaching the gas hose, attaching the 7-pin control cable, and attaching the power cable to the output studs for .025”, .035” steel wire welding or .030”-.035” and 3/64” aluminum wire welding. (more…)
Welding aluminum just got easier with the help of the Magnum SG spool gun from Lincoln Electric. The Magnum SG is a lightweight, semiautomatic spool gun designed to provide easy and reliable aluminum wire feeding. It works with a variety of CV power sources and engine-driven welders. Rated 250 amps @ 60%, the Magnum® SG features a 25 ft (7.5 m) gun cable and integrated wire feed speed control in the handle to reduce the need for walking back to the power source. (more…)
The Dual Maverick™ 200/200X is an advanced diesel engine driven welder with dual welding outputs. This best-in-class arc welding machine provides reliable power for multiple welding arcs, runs quietly, and promotes fuel savings with variable engine RPM and auto start/stop capabilities.
“This best-in-class arc welding machine provides reliable power for multiple welding arcs, runs quietly, and promotes fuel savings”
When MIG welding was first invented, it used a constant voltage source of electricity for the arc. While this method is still used today, the invention of pulsed MIG (or MIG pulse) welders has allowed welders to realize several advantages over conventional MIG welders, several are listed below:
Pulsed MIG can be used to weld thin materials. Conventional MIG welders run at a constant amperage whereas pulsed GMAW welding runs a peak and background amperage. The constant switching between these two amperages enables the welder to put out a lower overall heat input into the material. This helps prevent blowouts on thin materials.
There is less spatter than conventional MIG welders. Pulsed MIG welders use peak electrical currents to cleanly burn the wire off at a high amperage. It also employs a lower background welding amperage immediately after the peak electrical current to prevent the interaction of the electrical arc and the wire from becoming unstable. This ultimately results in a reduced amount of spatter.
MIG pulse welding is excellent for out of position welding. At the same voltage and wire feed settings, conventional MIG tends to have a weld puddle that is larger and more fluid than that of pulsed. MIG pulse welding has a more controllable puddle that prevents it from falling out when gravity is a concern during out-of-position welding. Furthermore, the reduced amount of spatter that can be achieved with this method makes it safer for the welder to perform the out-of-position operation.
Red-D-Arc Carries a Number of Pulsed MIG Welder Machines
Whether you’re looking for an EXtreme 360 MAP, a Lincoln Power Wave S350, a D325K 3+12 Diesel, or Millermatic 350P – we have it all!
The method you select for welding pipe will depend on the location where the welding is taking place, materials and pipe size.
For welding steel pipes in the open (e.g. pipe installation in trenches), manual arc welding (SMAW) is most common. This technique used is downhill using cellulosic electrodes (also basic electrodes are used for higher strength steel applications). A root pass and a hot pass are followed by the fill passes. The weld is finalized by the top pass. Welding units optimised for downhill welding are utilised.
Welding Smaller Pipes
For small diameter and short length pipes which are free to rotate, the pipe is rotated while the welding torch is held stationary. The processes used are MIG (GMAW) and TIG (GTAW). In the case of TIG welding a wire feeder is necessary. A process cell is best for this type of welding.
Welding Large Pipes
In applications involving larger pipe sizes, welding is generally carried out using the orbital process. MIG is usually employed, but TIG with automatic feed of the filler wire can also be used. Orbital process using closed head welding units is also utilized for applications where smaller pipes cannot be rotated.
There are a number of advanced methods of depositing pipe welds currently in use. These include precisely controlled short circuit transfer for root pass (Miller – Regulated Metal Deposition), optimized pulsed welding (Miller – Pro-Pulse) and high frequency waveform control (Lincoln – Surface Tension Transfer) in order to speed up and improve the quality of the pipe welds.
Red-D-Arc has a wide range of pipe welding equipment for rent including the following:
Red-D-Arc carries an extensive inventory of welding equipment designed specifically for pipe welding professionals. The latest pipe welding equipment can increase productivity and produce the highest quality welds. We have an extensive fleet of innovative solutions like the Miller PipeWorx Welding System, Red-D-Arc Oscillating Pipe Welder, Bug-O Systems, Orbital Welding Systems from Lincoln and Axxair, and pipe end prep equipment from H&M and E.H. Wachs.
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