Views: 0 Author: Site Editor Publish Time: 2026-05-07 Origin: Site
Elastomer cables and drag chain cables are named from different classification perspectives.
Elastomer cables are named according to raw material, while drag chain cables are named according to application scenario.
Therefore, an elastomer cable may or may not be a drag chain cable.
An elastomer cable adopts elastomer materials for insulation and sheath. Elastomer materials generally feature excellent flexibility, abrasion resistance and oil resistance, and can withstand bending, stretching, extrusion and other deformation to a certain extent.
Elastomer cables are widely used in occasions requiring high flexibility and durability, such as robots, automated equipment and mobile devices.
A drag chain cable is specially designed for continuous movement inside cable drag chains.
A drag chain is a protective device that prevents cables from breaking or being damaged when moving along mechanical parts.
Drag chain cables are manufactured with superior flexibility, repeated bending resistance and tensile strength to adapt to frequent movement and cyclic bending inside drag chain systems.
They are commonly applied in machine tools, automatic production lines, cranes and other equipment requiring cable follow-up movement.
Although both elastomer cables and drag chain cables focus on flexibility and durability, they differ in design focus and actual application orientation.
When selecting cables, it is recommended to choose the most suitable type according to actual equipment requirements and working environment.
What are the common models of drag chain cables?
There are many types of drag chain cables.
The most common domestic models include TRVV, TRVVP, TRVVSP (TRVVPS).
Does adding cotton yarn inside the cable improve the bending resistance of high-flex cables?
Many manufacturers claim that adding cotton yarn can enhance bending performance.
In fact, the conductor and cotton yarn have different hardness and wear resistance. Cable internal breakage cannot be identified from the outside.
After adding cotton yarn, it still feels intact in hand only because the cotton yarn is unbroken, even when the internal copper conductors have already snapped and lost conductivity.
Cotton yarn only acts as filler to fill the gaps between conductors and improve the cable’s tensile strength.
It does not improve bending resistance at all.
