141.0082 - Binzel Style M8 Contact Tip .045 Aluminum (Pack of 25)

Technical Specification: Binzel 141.0082 Aluminum Contact Tip

The Binzel 141.0082 is a specialized contact tip engineered for the Gas Metal Arc Welding (GMAW) of aluminum alloys. Unlike standard steel contact tips, this component features a specifically calibrated internal bore tolerance designed to accommodate the rapid thermal expansion coefficient of aluminum wire. Standard steel tips often cause feeding issues with aluminum because the wire expands significantly as it heats up due to electrical resistance (I²R heating) at the contact point. This tip mitigates that issue by providing slightly more clearance while maintaining sufficient electrical contact for a stable arc.

This contact tip utilizes an M8 thread profile with a total length of 30mm, making it directly compatible with Abicor Binzel MB 36 KD, MB 36 GRIP, and the specialized Push-Pull 36 series welding guns. The M8 thread ensures a high surface area connection with the tip holder or gas diffuser, which is critical for high-amperage applications often associated with 0.045" (1.2mm) aluminum welding. The material composition is high-grade Electrolytic Copper (E-Cu), chosen for its superior thermal and electrical conductivity compared to harder alloys like CuCrZr, which are typically reserved for steel applications where abrasive wear is the primary failure mode. In aluminum welding, conductivity and bore smoothness are paramount to prevent micro-arcing inside the tip.

The 141.0082 is designated for 1.2mm (0.045") wire. It is essential for industrial fabrication environments using push-pull systems to utilize these specific 'A' type tips to prevent wire shaving. Shavings can accumulate in the liner or at the drive rolls, leading to catastrophic bird-nesting. By using the correct geometry, this tip ensures the push-pull synchronization remains effective, delivering wire smoothly to the weld pool without interruption.