192143 - Miller 1/8-inch Contact Tip for OBT 1200 Torch

Miller 192143 Contact Tip: The Professional's Choice for Heavy Fabrication

For professional welders tackling the toughest jobs, the Miller 192143 Contact Tip delivers the reliability needed for high-output applications. Designed exclusively for the Miller OBT 1200 welding gun, this contact tip is sized for 1/8-inch (3.2 mm) welding wire, a standard size for heavy structural and industrial fabrication. Whether you are performing Submerged Arc Welding (SAW) or heavy-duty MIG welding, this tip is rated to withstand the punishing conditions of up to 1200 amps of output. It represents the intersection of durability and precision, ensuring that your welding arc remains stable and your deposition rates stay high.

Optimized Electrical Conductivity

The primary function of a contact tip is to transfer welding current to the wire as it passes through the gun. At 1200 amps, resistance is the enemy. Any imperfection in the tip's bore or material composition can lead to excessive heat generation, voltage drops, and erratic arc characteristics. Miller Electric manufactures the 192143 tip using high-purity copper alloys that maximize electrical conductivity. This ensures that the energy from your power source is efficiently transferred to the weld pool, resulting in deeper penetration and sounder welds. The precise bore diameter also ensures smooth wire feeding, reducing the friction that can lead to bird-nesting or irregular wire stick-out.

Built for the OBT 1200 Torch

Compatibility matters. The OBT 1200 is a specialized tool for specialized tasks, and it requires consumables that match its robust specifications. Generic tips often fail to meet the thermal and dimensional requirements of such high-amperage equipment. This genuine Miller part is designed to fit perfectly within the OBT 1200's front-end assembly, maintaining the correct geometry for gas flow and heat dissipation. Using genuine Miller consumables protects your investment in the torch and power source by preventing damage caused by overheating or poor connections.

Long-Lasting Reliability

In high-volume production environments, frequent downtime to change contact tips kills efficiency. The robust construction of the 192143 tip offers extended service life compared to standard-duty tips. Its resistance to keyholing (wear at the tip exit) means you can weld longer between changes, keeping your arc focused and your production line moving. When you need to weld thick materials with large diameter wires, trust the component engineered by the same experts who built your machine. This pack includes one 1/8" contact tip.