L05612 - Lenco LDT-917-F Dinse Adapter for WP-9 & WP-17 TIG Torches (35-50)

Technical Overview of the Lenco L05612 Dinse Connector

The Lenco L05612 (Model LDT-917-F) is a specialized TIG welding accessory designed to adapt standard air-cooled TIG torches to power sources utilizing Dinse-style receptacles. This connector is specifically engineered for use with WP-9 and WP-17 series torches that employ a one-piece power cable system. The unit features a precision-machined brass body with a 12.9mm (0.508 inch) male pin, corresponding to the industry-standard 35-50 (or 50-70) Dinse size classification. This ensures compatibility with a wide range of modern inverter and transformer-based welding machines.

The connector utilizes a 3/8"-24 male threaded connection to interface with the torch's power cable. In one-piece cable systems, the copper conductor is encased within the gas hose; therefore, the L05612 is designed as a "Flow-Thru" device. It allows shielding gas to be introduced into the connector (typically via a side port or through the machine terminal, depending on configuration) and flow directly into the power cable to the torch head. This design maintains the integrity of the gas shield while delivering welding current efficiently.

Constructed for industrial durability, the connector is encased in a high-dielectric rubber boot that provides insulation and strain relief. The brass componentry ensures low electrical resistance, minimizing heat buildup at the connection point during high-amperage welding operations. This adapter is an essential component for welders looking to utilize lightweight, air-cooled torches on machines equipped with international standard Dinse output terminals.