Mig Welding - How to Mig Weld | R-Tech

  • What is the benefit of a 4-roll geared wire feed system?

    We fit a 4-Roll geared wire feed drive assy to the following Mig Welders 
    R-Tech I-Mig200 Mig Welder
    R-Tech C-Mig315 Mig Welder
    R-Tech I-Mig450 Mig Welder 

    The benefit of a 4-roll system over a 2-roll system is you achieve a much smoother and reliable feed of the mig wire. 4-Roll systems are more industrial and most manufacturers only fit to thier top end models, at R-tech we use them wherever possible. 

    We also use heavy duty wire feed motors which offer greater reliability and long life when compared to the smaller feed motors our competitors use. 

    The feed drive plate which houses the motor and rollers is made from metal which also add's to the durability and reliabilty compared to the plastic feed assy's you see on a lot of mig welders today.

  • What is the benefit of ARC FORCE on your inverter mig welders?

    All our R-Tech inverter Mig Welders feature 'Arc Force' 

    This is also known as 'choke' on traditional mig welding machines. On many mig welders you have 2-3 sockets for the earth to plug into. The low setting better for thinner materials and gives a smoother arc, where as the high setting is better for thicker materials (more penetration) and the arc is harsher and can give more splatter. 

    The Arc force on our machines works in the same way but can be adjusted electronically from zero to ten infinitely, this allows you to fine tune the weld arc characteristics to the thickness of metal you are welding. 

    With adjustable arc-force, infinate control of wire speed and welding power, you can really fine tune our inverter mig welders to give you the most smoothest weld ever.

  • I am new to Mig Welding, how can you help me?

    We have produced a free, downloadable guide on the basics of Mig Welding. Our free 'How to do MIG Welding' guide explains all the terms used in this type of welding, contains photographs and offers plenty of advice for novice welders. Click the link above to download the guide

  • I need to MIG weld aluminium but I need some help

    Using a MIG welder to weld aluminium requires a basic knowledge of how the metal reacts when heated as well as some additional parts for your machine. 

    Aluminium conducts heat much faster than steel so welding needs to be done quickly and accurately. We have a page you can read on the properties and characteristics of aluminium in the MIG welding process. Please see our Aluminium Welding Information page for more details. 

    You may require some additional parts for your MIG welder in order to weld alloys. You will need to fit a Teflon liner to your torch and also a set of alloy rollers. These have a different shaped groove to allow the aluminium MIG wire to feed through the torch correctly. 

    If you would like more information on our range of rollers, liners and MIG wire please call us today on 01452 733933 and we will happily help you with your own particular application.