The Miller XMT family has been around for more than 30 years and has been used in construction sites and shipyards around the globe. Welding contractors typically enjoy working with the Miller XMT because of its reliability and exceptional arc performance. In this article, we will focus on the XMT 350 FieldPro with Polarity Reversing (XMT 350 FieldPro PR) and discuss why it may be one of the most versatile multiprocess welding machines in the world.
What is a Multiprocess Welding Machine?
Simply put, a multiprocess welding machine is capable of performing TIG, Stick, MIG and Flux-Cored welding processes. With one welding machine, welding contractors have the flexibility to tackle a wide variety of fabrication jobs and projects without having to switch the power source.
The Miller XMT 350 FieldPro PR
The XMT 350 FieldPro PR is Miller’s flagship multiprocess welding machine. The machine has a rated output of 350A (at 34V) at 60% duty cycle, and a maximum capacity of 425A. Patented technologies such as Wind Tunnel and Fan-On-Demand help to protect the internal electrical components and PC boards from dust and debris, thereby improving reliability even in demanding jobsites. The inbuilt proven Auto-Line Technology provides added convenience to the welding contractor because the welding machine can operate over a wide input range (208-575V, single- or three-phase, 50/60Hz). The XMT 350 FieldPro PR is also equipped with ArcReach Technology, giving welders full remote control capabilities at the point of welding, without the need for control cables. There are four ArcReach accessories that can be paired with the XMT 350 FieldPro PR to deliver superior flexibility and performance in virtually any jobsite.
ArcReach Heater
The first accessory that the XMT 350 FieldPro PR can be paired with is the ArcReach Heater. The ArcReach Heater is a first-of-its-kind portable induction heating device that allows welding contractors to perform preheating and hydrogen bakeout up to 315oC in the field. The air-cooled heating cables are simple to setup and can be applied to pipes or flat structures. Since the XMT 350 FieldPro PR can be used for both welding and induction heating, it provides a high degree of versatility at the jobsite. Induction heating also helps to improve jobsite safety by eliminating the use of open flames and resistance heating pads.
ArcReach Stick/TIG Remote
The ArcReach Stick/TIG Remote is another accessory that can be paired with the XMT 350 FieldPro PR to deliver optimized Stick and TIG performances for the welding of open root pipes. With traditional welding machines, pipe welders will need to walk back to the power source to swap the cables and make amperage adjustments when switching between the Stick and TIG processes. This not only results in production downtime but also increases the chances of slips, trips and falls at the jobsite. With the ArcReach Stick/TIG Remote, the welder can make all the necessary changes (such as switching polarity and adjusting amperage) at the point of welding with the push of a button. This technology eliminates all unnecessary walking, thereby improving jobsite safety and productivity.
ArcReach Suitcase 12
When the ArcReach Suitcase 12 wire feeder is paired with the XMT 350 FieldPro PR, the welder is able to perform high-quality Self-Shielded or Gas-Shielded Flux-Cored welding. At expansive jobsites, the wire feeder is usually located very far away from the welding machine. Depending on the distance and the size of the cables, a large voltage drop of 5-10V is not uncommon. In other words, with traditional welding machines, the welder will need to guess the correct voltage to set at the wire feeder, which can lead to poor-quality welds and frustration. With the ArcReach Suitcase 12, this guesswork is completely eliminated. The welder just needs to set the qualified welding parameters at the wire feeder and start welding. The XMT 350 FieldPro PR will automatically compensate for any voltage drop in the setup and deliver the correct welding voltage to the welding arc.
ArcReach Smart Feeder
For welding contractors who are looking to improve pipe welding productivity in temporary site fabrication shops or in the field, the ArcReach Smart Feeder can be paired with the XMT 350 FieldPro PR to deliver advanced pipe welding solutions such as RMD and Pulsed MIG on open root pipes. These advanced welding processes are welder-friendly and can easily provide a 100% improvement in pipe welding productivity as compared to the traditional TIG and Stick processes. You can also achieve significantly higher throughputs, without breaking the bank, if you perform these advanced pipe welding processes on a 1G rotating position with a simple pipe positioner.
An Innovative Welding Solution
The XMT 350 FieldPro PR, when paired with the four ArcReach accessories, is a truly innovative multiprocess welding and heating solution that helps welding contractors improve jobsite safety, productivity and weld quality. If you are interested to see a demo, feel free to contact us at sgoffice@millerwelds.com