Polymer-tech SolutionsTM
DURAMOV drag‑chains with suffix ‑E incorporate conductive fillers compounded into engineering plastic substrates to achieve uniform bulk anti‑static performance with stable surface resistance below 10⁹ Ω. They continuously dissipate static electricity accumulated by friction during reciprocating cable movement, preventing electrostatic discharge that damages chips and precision electronic components. They are widely deployed in semiconductor, lithium‑battery production and explosion‑proof automation equipment. A common misconception assumes ESD drag‑chains alone can complete full anti‑static protection. In fact, drag‑chains are merely one component of the whole static‑protection system and cannot deliver adequate protection when used in isolation.
In practical deployment, both end connectors of the drag‑chain must be reliably earthed to conduct static charges to equipment ground. Internal cables shall adopt matching FLEXMOV® anti‑static cables; ordinary insulated outer‑jacket cables block static dissipation. Mounting bases, cable connectors and grounding terminals shall maintain conductive continuity without insulating breakpoints. Dust, oil and contaminants adhering to chain links shall be avoided, as they alter surface resistance and degrade anti‑static performance. Even with ESD‑grade drag‑chains, regular surface‑resistance inspection is required rather than infinite reliance on factory‑out specifications.