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Silicone seal strip extruder

Time：

2020-09-28

The silicone sealing strip extruder and silicone strip extruder are conventional cold-feed single-screw extruders. They consist of a die head, barrel, forced feeding device, frame, cooling system, drive mechanism, lubrication system, drive motor, and electrical control cabinet. The extruder frame features an integral design, resulting in a compact overall structure. The electric motor is mounted on the frame and secured with bolts at its base. The motor drives a reduction gearbox; when hot silicone enters the barrel via the forced feeding device, the rotation of the screw conveys the material toward the die head. Along this path, the heating and cooling systems maintain the material within the specified process parameters while compressing and plasticizing it. Due to the screw…

Silicone sealing strip extruder

The silicone strip extruder is a conventional cold-feed single-screw extruder. It comprises a die head, barrel, forced feeding device, frame, cooling system, drive mechanism, lubrication system, drive motor, and electrical control cabinet, among other components.

The frame of the silicone‑rubber extruder adopts an integral design, resulting in a compact overall structure. The electric motor is mounted directly on the frame and secured with bolts. The motor drives the reduction gearbox; when hot rubber enters the barrel via the forced‑feed device, the rotation of the screw conveys the material toward the die head. Along this path, heating and cooling systems maintain the rubber within the specified process parameters while compressing and plasticizing it. Thanks to the screw’s action, the material undergoes intensive compaction, promoting inter‑particle bonding, increasing density, and ensuring stable flow characteristics, thereby delivering superior product quality.

Purpose

It is suitable for the efficient extrusion of profiled silicone products such as silicone strips. The design of the silicone extruder and its feeding system have been successfully implemented, ensuring excellent production stability and reducing the workload on operators. A screw with a high compression ratio and a high length-to-diameter ratio delivers superior extrusion density and mixing performance, resulting in products with smooth inner and outer surfaces, no bubbles, and consistent dimensional stability.

Performance Characteristics of Silicone Strip Extruders

1. This machine is equipped with an AC motor and features variable-frequency speed control, offering a wide speed range, excellent adaptability to the production of silicone rubber products in various specifications, and convenient operation.

2. This machine is equipped with a hardened‑tooth‑surface rubber extruder reducer, which features low noise, high transmission torque, smooth operation, and convenient maintenance.

3. This machine employs pneumatic cylinder‑driven forced feeding, enabling the processing of multi‑layer rubber strips with dense extrusion and excellent product quality.

4. This machine is equipped with a dual-channel automatic temperature controller, ensuring minimal temperature fluctuations during heating. It allows for optimal selection of the heating temperature based on different processing requirements and automatically maintains the set temperatures of the heated barrel and die head.

5. This machine employs electric heating for the barrel and a circulating cooling system, enabling rapid cooling of the material to prevent thermal degradation.

Hebei Shuangda Rubber & Plastics Machinery Co., Ltd. is a modern enterprise integrating research and development, manufacturing, and sales of complete sets of extrusion equipment for rubber, silicone, and plastics. The company’s main products include rubber extruders, rubber hose extrusion lines, three‑layer composite sealing strip extrusion lines, silicone sealing strip production lines, plastic sealing strip production lines, plastic profile production lines, plastic pipe production lines, elastomer extruders, and other extrusion equipment, as well as production machinery for engineering seals, automotive seals, wire and cable applications, air‑conditioning hoses, braided hoses, automotive hoses, waterstop strips, and related products.