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Coaxial Water-Cooled Cable: When Is It Used?

Technical Published 2 September 2026 1 min read 36 views
Coaxial Water-Cooled Cable: When Is It Used?

A coaxial water-cooled cable is designed differently from a conventional flexible furnace power cable. Its conductors are arranged coaxially, with insulation and separate cooling-water paths incorporated into the assembly.

Why coaxial construction exists

This configuration can be useful in applications where electrical inductance, conductor arrangement and cooling requirements need to be carefully controlled. The technical material for our cable range describes a copper coaxial electrode with a tin-plated surface and a PTFE insulating structure. Two cooling-water circuits are separated within the design.

The same technical source describes the cable as suitable for demanding furnace applications including EAF and submerged-arc furnace environments, depending on the final configuration.

Coaxial Water-Cooled Cable: When Is It Used?
Zheng Zhou Li Zhao — furnace copper parts made in our own plant.

Where coaxial cables are specified

For buyers, the key question is not simply whether a coaxial cable is “better.” The correct question is whether the customer's power system and installation require a coaxial structure.

When evaluating a coaxial cable, provide:

  • Operating current
  • Operating frequency
  • Cable length
  • Conductor configuration
  • Terminal structure
  • Cooling-water arrangement
  • Installation space
  • Furnace type
  • Required quantity

The outer hose and sealing arrangement are also important because the assembly must protect the electrical conductors while maintaining the cooling-water circuit.

For a replacement order, send photos of the complete cable and both ends. If the original cable has a model number, include it in the RFQ, but do not rely on the model number alone.

How we can help

Zheng Zhou Li Zhao Electric Furnace Co., Ltd. can review the customer's technical information and confirm the proposed construction before production.

Send your cable drawing, photos, dimensions or furnace specifications for technical confirmation and a quotation — normally within 24 hours. Get a quote

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