Silicon Rubber Wire Extrusion Lines

The Silicon Rubber Wire Extrusion Line is a specialized production solution developed for the insulation and jacketing of silicone rubber cables, a material category that demands a fundamentally different extrusion approach compared to conventional thermoplastic compounds. Silicone rubber is a thermosetting material with highly temperature-sensitive flow behavior — improper screw geometry, uneven barrel temperatures, or inadequate feeding consistency will cause localized overheating, rubber burning, and cross-linking before the material exits the die, resulting in unusable product and costly downtime.
The machine's unique screw and barrel design has been developed specifically for silicone rubber processing. The screw geometry maintains a low, consistent shear rate throughout the plasticizing zone, preventing frictional heat buildup that would trigger premature vulcanization. The barrel temperature control system provides precise, zone-by-zone thermal management with rapid response to deviations, ensuring that material temperature stays within the narrow processing window required for high-quality silicone extrusion. The material supply system is designed to handle the high viscosity and adhesive characteristics of silicone rubber compound, delivering a steady, pulsation-free feed to the screw inlet. This consistent feeding behavior is the foundation for achieving the high linearity — stable outer diameter and concentricity — that silicone rubber cable applications demand. Output capacity is maximized without requiring elevated temperatures, which protects compound integrity and extends screw and barrel service life. Silicone rubber cables are used extensively in high-temperature industrial environments, medical equipment, lighting applications, automotive engine compartments, and aerospace wiring where resistance to extreme heat, flame, and environmental aging is critical. This extrusion line is designed to support the production of cables that meet these demanding performance profiles reliably and at sustained production rates.