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The MWM nitrogen plastic welder (31871) is a complete, self-contained plastic welding station designed for professional bodyshop use. It combines a nitrogen plastic welder, a built-in nitrogen membrane generator and a mobile trolley into one compact unit. As a result, you get everything you need for high-quality plastic repairs without the bulk and cost of separate gas bottles.
Traditional nitrogen plastic welders rely on bulky, heavy gas bottles that take up valuable workshop space and need regular replacement. However, this MWM system eliminates that problem entirely. The built-in nitrogen filter membrane generator connects to your existing compressed air supply and produces the nitrogen needed for welding on demand. Consequently, you never run out of gas mid-repair, and you save money on bottle rental and refills.
The entire welding station mounts on a purpose-built trolley, so you can wheel it to wherever the work is. Whether you are repairing bumpers on a bench, working on a vehicle in a bay or moving between workstations, the trolley makes it easy to bring the welder to the job. In addition, the compact footprint means it stores neatly against a wall when not in use.
The MWM welding gun features a compact, ergonomic handle that makes it comfortable to use for extended periods. It connects to the heating machine through a flexible cable bundle, which allows free movement around the repair area. Because the gun is lightweight and well-balanced, technicians can achieve precise welds on complex plastic shapes without hand fatigue.
Every MWM welding machine also includes a plastic spot welder that welds staples electrically. This is essential for reinforcing cracked or split plastic components before applying the nitrogen weld. Furthermore, the spot welder adds structural strength to repairs, which means the finished result holds up to the stresses of everyday use on the road.
The system comes supplied with all the consumables and accessories you need to start repairing immediately. There is no need to order additional parts before your first job. The kit includes welding rods, staples and essential tools, so you can begin producing quality plastic repairs straight out of the box.
Nitrogen creates an inert atmosphere around the weld zone, which prevents oxidation during the welding process. This is important because oxidation weakens the bond and discolours the plastic. By using nitrogen, you achieve stronger, cleaner welds that blend more easily with the surrounding surface. Therefore, the finished repair requires less filling and finishing work, which saves time on every job.
Bodyshop Solutions Ltd supplies the full MWM plastic welding range across the UK and Ireland. We provide expert pre-sale advice to help you choose the right system for your workshop, along with professional delivery and ongoing technical support. With over 20 years of experience in workshop equipment, we ensure you get the most from your investment.
£3,652.00
1 in stock
The new MWM gun is built on a very compact, ergonomic and easy to use handle to move around. It is directly connected to the very compact heating machine through very flexible bundle of cables.
Our MWM PLASTIC SPOT welds staples electrically and is also
supplied on every version on the MWM welding machines. Each
welding machine is also supplied with all needed consumables
as well as some more essential accessories to be able to carry out
quality repairs.
Voltage: 230V
Frequency: 50 ÷ 60 Hz
Plastic Welder Power: 210W
Air Flow: 15 / 20 l/min
Output Flow Capacity: 15 / 20 l/min
Temperature: 450 ÷ 500 °C
