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40V78LR - Weldcraft 40V78LR 25-Foot Rubber Power Cable Extension for Water-Cooled Torches

Packaging: 1 per ea
$617.02/ea $382.90/1 per ea only $382.90/eaSave 38%

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SKU: MIL40V78LR Categories: , ,

OVERVIEW

Product Overview

The Weldcraft 40V78LR is a specialized Rubber Power Cable Extension designed to significantly expand the working envelope of industrial TIG welding setups. Measuring 25 feet (7.6 meters) in length, this cable assembly is engineered to interface seamlessly with specific water-cooled TIG torch series, providing the necessary electrical continuity and coolant path extension required for remote welding operations. Manufactured by Weldcraft, a leader in TIG welding components, this product ensures that operators can maintain high-quality arc performance even when positioned at a considerable distance from the power source.

Technical Compatibility

This power cable extension is strictly designated for use with water-cooled torch bodies. It is fully compatible with the following series:

  • 18 Series: Heavy-duty water-cooled torches.
  • 20 Series: Compact water-cooled torches.
  • 24W Series: Specialized water-cooled torches.
  • 25 Series: Flexible water-cooled torches.

The fittings and internal geometry are precision-machined to match the standard connections found on these torch bodies and their corresponding power adapters, ensuring a leak-free and low-resistance connection.

Material Construction

A defining feature of the 40V78LR is its rubber outer jacket. Unlike lower-cost vinyl or plastic alternatives, this rubber composition offers distinct industrial advantages. It provides exceptional resistance to high temperatures, incidental contact with hot surfaces, and abrasion from concrete shop floors. Furthermore, the rubber material retains its flexibility across a wide temperature range, preventing the cable from becoming stiff or brittle in unheated workshops during winter months. Inside, high-grade copper stranding ensures efficient current transfer, minimizing voltage drop over the 25-foot span to maintain arc stability.

Operational Utility

In complex fabrication environments such as shipyards, aerospace hangars, or large-scale automotive manufacturing, moving the welding power source is often impractical. This extension cable bridges the gap, allowing the welder to navigate around large workpieces or climb into difficult-to-reach areas without dragging heavy machinery. It serves as a critical component for maintaining productivity and safety by reducing clutter and equipment relocation downtime.

Additional Information
Brand:Weldcraft
Item:Power Cable
Length:25 ft
Packaging Description:1-per-each
Material:Rubber
Compatible Series:18 Series, 20 Series, 24W Series, 25 Series
Cable Type:Extension
Cooling Method:Water Cooled

INCLUDED

  • (1) 25 ft. Rubber Power Cable Extension

APPLICATIONS

  • Large-scale metal fabrication
  • Shipbuilding and marine repair
  • Automotive chassis and body work
  • Aerospace component welding
  • Industrial pipe welding
  • Maintenance and Repair Operations (MRO)

FAQ

The 40V78LR is designed for use with water-cooled TIG torches, specifically the 18, 20, 24W, and 25 series.

This power cable extension is 25 feet (7.6 meters) long.

This cable is manufactured with a durable rubber jacket, which offers superior flexibility and heat resistance compared to vinyl.

No, this cable is specifically designed for water-cooled torch setups (Series 18, 20, 24W, 25). Air-cooled torches typically use different cable configurations.

Yes, in water-cooled TIG systems, the power cable typically carries the electrical current and the return coolant water. This extension maintains that functionality.

Rubber remains flexible in cold temperatures and is more resistant to melting or cracking from exposure to sparks and hot surfaces, making it ideal for harsh shop environments.

While all cables have some resistance, this high-quality copper cable is designed to minimize voltage drop. However, for very long runs or max amperage, always check your machine's specifications regarding total cable length.

Yes, this is a genuine Weldcraft product, ensuring perfect fitment and performance with compatible Miller and Weldcraft TIG systems.