Model XJ-75 XJ-90 XJ-120 XJ-150 Screw Diameter (mm) 75 90 120 150 Length-to-Diameter Ratio 20:1 20:1 20:1 20:1 Motor Power (kW) 30 55 110 132 Screw Speed (r/min) 30–65 30–60 30–50 30–50 Production Capacity (kg/h) 80–180 100–300 180–540 500–750 Applications Suitable for extruding various types of rubber (EPDM, natural rubber, nitrile rubber, butyl rubber, reclaimed rubber), used in the production of composite sealing strips for building doors and windows, single-extruded sealing strips for automobiles, as well as dense and foamed rubber products in strip, rod, tube, or sheet forms for construction, electrical appliances, machinery, water conservancy, and other industries. Working Stages The process is divided into four stages: In the first stage, the machine must feed material, convey it, and compact the compounded rubber; in the second stage, the rubber compound must be heated and plasticized to become a more fluid mass; in the third stage, the extruder mixes and thermally homogenizes the compounded rubber; and in the fourth stage, pressure must be built up to force the compounded rubber through the die. For hot-feed extruders, the second and third stages are provided by a preheated open mill. Cold-Feed Equipment Operation and Maintenance 1. Before use, add 25–30 kg of oil to the hardened gear reducer (refer to the oil level indicator). Use gear oil in summer and No. 45 mechanical oil in winter. Regular oil changes can extend the service life of the reducer. 2. Periodically open the fixed cover of the cold-feed unit every 1–2 months to perform routine maintenance on the feeder, adjust the clearance between the copper knife and the feeding roller, and check the roller bearings. Failure to do so may result in rubber leakage. Lubricate the cold-feed gears with grease once per shift. 3. Prior to startup, calibrate the die diameter and tighten all flanges and fasteners. 4. Operating temperature should be maintained between 40°C and 70°C. Temperatures that are too low can damage the machine, while excessively high temperatures may cause rubber vulcanization (over‑curing), leading to equipment failure and impaired operation. 5. Before shutdown, ensure all rubber has been completely extruded from the barrel and screw, then cool the barrel and screw using circulating water until they reach room temperature. Otherwise, this may affect subsequent use. 6. Winter operating precautions: Before freezing conditions set in, add antifreeze to the circulating water to prevent ice formation and potential equipment damage.

Model XJ-75 XJ-90 XJ-120 XJ-150 Screw Diameter (mm) 75 90 120 150 Length-to-Diameter Ratio 20:1 20:1 20:1 20:1 Motor Power (kW) 30 55 110 132 Screw Speed (r/min) 30–65 30–60 30–50 30–50 Production Capacity (kg/h) 80–180 100–300 180–540 500–750 Applications Suitable for extruding various types of rubber (EPDM, natural rubber, nitrile rubber, butyl rubber, reclaimed rubber), used in the production of composite sealing strips for building doors and windows, single-extruded sealing strips for automobiles, as well as dense and foamed rubber products in strip, rod, tube, or sheet forms for construction, electrical appliances, machinery, water conservancy, and other industries. Working Stages The process is divided into four stages: In the first stage, the machine must feed material, convey it, and compact the compounded rubber; in the second stage, the rubber compound must be heated and plasticized to become a more fluid mass; in the third stage, the extruder mixes and thermally homogenizes the compounded rubber; and in the fourth stage, pressure must be built up to force the compounded rubber through the die. For hot-feed extruders, the second and third stages are provided by a preheated open mill. Cold-Feed Equipment Operation and Maintenance 1. Before use, add 25–30 kg of oil to the hardened gear reducer (refer to the oil level indicator). Use gear oil in summer and No. 45 mechanical oil in winter. Regular oil changes can extend the service life of the reducer. 2. Periodically open the fixed cover of the cold-feed unit every 1–2 months to perform routine maintenance on the feeder, adjust the clearance between the copper knife and the feeding roller, and check the roller bearings. Failure to do so may result in rubber leakage. Lubricate the cold-feed gears with grease once per shift. 3. Prior to startup, calibrate the die diameter and tighten all flanges and fasteners. 4. Operating temperature should be maintained between 40°C and 70°C. Temperatures that are too low can damage the machine, while excessively high temperatures may cause rubber vulcanization (over‑curing), leading to equipment failure and impaired operation. 5. Before shutdown, ensure all rubber has been completely extruded from the barrel and screw, then cool the barrel and screw using circulating water until they reach room temperature. Otherwise, this may affect subsequent use. 6. Winter operating precautions: Before freezing conditions set in, add antifreeze to the circulating water to prevent ice formation and potential equipment damage.

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 Main Applications of the Silicone Tube Extrusion Production Line Suitable for extruding various high‑temperature silicone rubber wires and cables, as well as high‑temperature silicone rubber tubes. Key Features of the Silicone Tube Extrusion Production Line 1. Equipped with specialized screws, barrels, die heads, and die molds designed specifically for silicone rubber, featuring a unique internal water circulation system to prevent internal vulcanization. 2. Utilizes a dedicated self‑centering die head tailored for silicone rubber, along with an automatic or manual water‑cooling control system. 3. Incorporates a precise automated inspection and feedback system to ensure all wire parameters meet specifications, reducing scrap rates and significantly lowering production costs. 4. Features a uniquely designed multi‑layer circulating vulcanization oven, with a high‑temperature shaping oven at the front end and a coil‑wrapping structure at the rear, thereby extending the vulcanization length, improving vulcanization efficiency, and ultimately boosting overall production efficiency. 5. Includes a specially designed feed roller synchronized with the screw, enabling automatic material feeding by the main machine without requiring hydraulic feeding equipment.

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 rapid vulcanization of various silicone products, including silicone strips and other profiled parts. Its unique design and advanced feeding system enhance production stability while reducing reliance on manual labor. The high compression ratio and long length-to-diameter ratio of the screw improve extrusion density and mixing performance, resulting in products with smooth inner and outer surfaces, no air bubbles, and consistent dimensional stability. 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 produce silicone rubber products of different specifications, with convenient operation. 2. It utilizes a specialized hard-toothed gear reducer designed specifically for rubber extruders, providing low noise, high transmission torque, reliable and smooth operation, and easy maintenance. 3. Featuring pneumatic forced feeding, the machine can process multi-layer rubber strips, ensuring dense extrusion and superior product quality. 4. A dual-channel automatic temperature controller is incorporated, minimizing temperature fluctuations during heating. This allows for optimal selection of heating temperatures based on specific processing requirements and enables automatic control of set temperatures for both the barrel and die. 5. The machine employs electric heating for the barrel combined with circulating cooling, providing immediate and reliable cooling to prevent material degradation. Operation and Maintenance Guidelines for Silicone Strip Equipment 1. Before use, fill the hard-toothed gear reducer with appropriate lubricant—gear oil in summer and No. 45 mechanical oil in winter—and replace it regularly to extend the gearbox’s service life. 2. Prior to starting the silicone strip extruder, inspect the power supply to prevent motor damage or burnout caused by poor electrical contact. 3. Before operating the vacuum die head, tighten all screws and fasteners; after shutdown, thoroughly clean out any remaining material. Once started, adjust the core properly. 4. Before use, check whether metal fragments have entered the barrel and screw to avoid potential damage. Before stopping, ensure all material has been completely extruded from the barrel and screw to prevent residual cured material from affecting subsequent operations. 5. (1) Clean the gearbox oil tank and verify that gear meshing shows no signs of wear. Adjust the belt tension appropriately and periodically add wheel lubricant. (2) Remove any cured material from the barrel and screw interior to prevent leakage and ensure unobstructed water flow within the machine’s water jacket. (3) Regularly inspect the vulcanization chamber for bearing and rotating shaft wear or looseness, determining if component replacement is necessary. Also, check the heating and sealing systems for required repairs or additions, such as replacement of heating elements, and clean ventilation ducts to maintain proper rotation.