Silicone tube extruder

Model XJ-45 XJ-65 XJ-80 XJ-110 Screw Diameter (mm) 45 65 80 110 Length-to-Diameter Ratio 12:1 12:1 12:1 12:1 Motor Power (kW) 7.5 11 15 30 Screw Speed (r/min) 10–70 10–70 10–70 10–70 Production Capacity (kg/h) 20–30 40–60 120–150 200–280 Applications This machine is suitable for the efficient extrusion and continuous vulcanization of silicone products such as silicone strips and other profiled parts. Its innovative design, including an advanced feeding mechanism, ensures excellent production stability while reducing operator workload. The high compression ratio and long length-to-diameter ratio of the screw enhance extrusion density and mixing uniformity, resulting in products with smooth inner and outer surfaces, no air bubbles, and consistent dimensional accuracy. Key Performance Features of the Silicone Strip Extruder 1. Equipped with an AC motor and variable-frequency drive, this machine offers a wide speed range, enabling flexible adaptation to various silicone rubber product specifications and convenient operation. 2. It utilizes a hardened gear‑surface rubber extruder reducer, providing low noise, high transmission torque, smooth operation, and easy maintenance. 3. Featuring pneumatic forced feeding, it can process multi‑layer rubber strips, ensuring dense extrusion and superior product quality. 4. A dual‑channel automatic temperature controller maintains minimal temperature fluctuations during heating, allowing precise selection of optimal heating temperatures based on specific processing requirements, while automatically regulating set temperatures for both the barrel and die. 5. The barrel employs electric heating combined with circulating cooling, enabling rapid material cooling to prevent thermal degradation. After extrusion, silicone products pass through a front‑mounted high‑temperature vulcanization tunnel for preliminary vulcanization and shaping, followed by a rear tunnel for thorough curing. This approach resolves longstanding production and quality challenges inherent in traditional silicone rubber extrusion and vulcanization processes, such as: - Ensuring roundness and preventing deformation in thin-walled extruded tubes; - Producing large‑diameter and thick‑walled silicone tubes without surface indentations; - Achieving precise cross‑sectional shapes for complex profiled silicone strips; - Delivering accurate dimensions and forms across a hardness range from 30° to 70° Shore A. The tunnel features double-layer stainless steel construction, offering excellent insulation, extended heat retention, energy savings, and an aesthetically pleasing appearance. Quartz heating elements provide high temperatures and efficient radiant heat transfer, shortening vulcanization time and improving thermal efficiency. Once the tunnel reaches the preset temperature, it automatically switches to constant‑temperature control, deactivating one heating zone to conserve energy. This equipment is ideal for manufacturing silicone tubes, strips, custom profiles, foamed tubes, and more. With short vulcanization times and high productivity—yielding approximately 60–180 kg per hour—the machine is easy to operate. Silicone Tube Equipment Usage and Maintenance 1. Before use, fill the hardened gear‑surface reducer with appropriate lubricant: summer-grade gear oil or winter-grade No. 45 mechanical oil. Regular replacement extends the reducer’s service life. 2. Prior to starting the silicone tube extruder, verify the power supply to prevent motor damage caused by poor electrical contact. 3. Before operating the vacuum head, tighten all screws and securing components; after shutdown, thoroughly clean any residual adhesive. Adjust the core position upon startup. 4. Before use, inspect the barrel and screw for metal contamination to avoid potential damage. Before stopping, ensure all adhesive has been fully extruded to prevent leftover cured material from affecting subsequent operations. 5. (1) Clean the gearbox oil tank and check gear meshing for wear; adjust belt tension appropriately and periodically apply wheel lubricant. (2) Remove any cured adhesive from the barrel and internal cavity to prevent leakage and maintain proper water circulation within the machine’s jacket. (3) Routinely inspect bearings and rotating shafts in the vulcanization chamber for signs of wear or looseness, replacing worn parts as needed. Also, examine the heating and sealing systems, replenishing heating elements if required, and clear ventilation ducts to ensure smooth rotation.