Inner tube assembly

Inner tube assembly


Internal coating is applied to metal tubing to add lubricity, chemical isolation, or surface preparation to the tubing inside.

Download detailed specifications

The Inner tube is designed for internal coating applied to metal tubings like Torque coil, ACT ONE, or Wire coil for adding lubricity, chemical isolation, or surface preparation to the inside of the hollow cable. Ideal for applications requires lumen lubricity, sealing, or chemical resistance, for customers developing a delivery system.

construction of inner tube


Minimum wall thickness (including Fluoropolymer and PEBAX layer)

Coating material (Fluoropolymer layer)

   - PTFE    greatest lubricity and chemical resistance

   - PFA    similar in chemical resistance to PTFE, but less lubricity

   - FEP    similar to PFA, slightly less susceptible to water absorption than others

   - ETFE    greatest strength and abrasion resistance

Length:  up to 1800mm  (Trial : up to 3000mm)

End treatment of inner tube:  manually cut using a utility knife

End treatment of outer cable:  EDM cut, chamfering


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