0700200189 - ESAB Pressure Spring for MXH PP Push-Pull Guns (Pack of 5)

Technical Overview

The ESAB 0700200189 is a replacement pressure spring designed specifically for the wire drive mechanism located within the handle of ESAB MXH Push-Pull (PP) series MIG torches. This component is critical for applying the correct amount of downward force on the pressure arm, ensuring the drive rolls engage the welding wire with sufficient traction without deforming it.

This spring is compatible with MXH 300 PP and MXH 400 PP models. Over time, the original springs in the drive assembly can lose tension due to thermal cycling and mechanical fatigue, leading to inconsistent wire feeding, particularly when working with soft alloys like aluminum. Replacing the spring restores the mechanical integrity of the feed system. This SKU is supplied as a package of 5 springs, allowing for multiple replacements or stock for fleet maintenance.

Installation and Compatibility

Installation requires disassembly of the torch handle cover to access the drive motor and pressure arm assembly. The spring fits into the designated retention slot on the pressure lever. It is manufactured to OEM specifications to ensure the correct spring rate (k) required for the specific motor torque and drive roll geometry of the MXH series.