LM3A-12 - Miller AccuLock MDX Liner .035-.045 12ft LM3A-12

Miller LM3A-12: The Zero-Guesswork MIG Liner

Upgrade your welding experience with the Miller AccuLock MDX Liner (LM3A-12), designed for 0.035" to 0.045" wire. If you use a Miller MDX series MIG gun with a 12-foot cable, this liner is the key to consistent, trouble-free wire feeding. Miller has re-engineered the liner replacement process to address the frustrations of improper trimming, which is a leading cause of feeding issues in MIG welding.

Perfect Trim, Every Time

The AccuLock MDX system utilizes a unique installation method. You simply load the liner from the front of the gun and lock it into the diffuser mechanism. At the back end (the power pin), the liner locks in place and is trimmed flush with the cap. There is no need to calculate stick-out or measure the cable length. This "error-proof" design guarantees that the liner is perfectly sized, preventing the gaps that allow wire to buckle or drag inside the cable.

Enhanced Arc Stability

A smooth wire feed is the foundation of a good weld. The LM3A-12 liner ensures that the wire travels centrally through the gun, aligned perfectly with the contact tip. This reduces the mechanical resistance on the wire, allowing your wire feeder to operate smoothly without slipping. By preventing burnbacks and erratic feeding, this liner helps you maintain a steady arc and produce cleaner welds with less spatter.

Durable and Reliable

Constructed from high-quality wound steel, the LM3A-12 is built to withstand the rigors of industrial environments. Whether you are welding mild steel in a fabrication shop or performing maintenance repairs, this liner provides the durability and precision Miller users expect. Keep your MDX gun running at peak performance with genuine Miller AccuLock consumables.