11-30 - 11-30 Contact Tips (.030") - Tweco Style / Magnum 100L Compatible - 25 Pack

Precision Engineered 11-30 Contact Tips for Professional MIG Welding

The 11-30 Contact Tip is a critical component for maintaining arc stability and electrical transfer in MIG welding operations. Designed as a direct replacement for the industry-standard Tweco 11-series, these tips are engineered to meet the rigorous demands of fabrication environments. Each tip is machined from high-quality copper alloy tubing, a material selected for its superior thermal conductivity and electrical properties. This composition ensures that current is transferred efficiently from the power source to the welding wire, minimizing resistance and heat buildup that can lead to premature failure.

One of the defining features of this product is its manufacturing precision. The inside diameter (ID) tolerance is strictly held to +/- .003 inches. This tight tolerance is essential for preventing "slop" in the wire path, which can cause wandering arcs, while still allowing enough clearance for the wire to feed smoothly without snagging. The interior surface is machined to be consistent and smooth, further reducing friction and wear on the wire as it passes through the tip. This attention to detail results in a more stable arc and cleaner welds, particularly in automated or semi-automated applications.

These contact tips are rated for standard welding applications up to 200 amperes, making them suitable for a wide range of light to medium-duty industrial tasks. They are compatible with Tweco No. 1 series MIG guns as well as the widely used Lincoln Magnum 100L guns found on many compact welding machines. The tips feature a standard threaded base for secure attachment to the gas diffuser (typically the 35-50 model), ensuring a solid mechanical and electrical connection. Each tip is stamped with the part number and wire diameter for immediate identification, streamlining inventory management in busy workshops. Supplied in a package of 25, these tips provide excellent value and ensure that operators always have replacements on hand to maintain productivity.