Introduction Extruders are classified into angled heads (with a 120° angle) and straight‑angle heads, depending on the angle between the material flow direction at the die head and the screw’s central axis. The die head housing is bolted to the extruder body. Inside the head, the die includes a die core holder, which is secured with nuts at the feed port; a die core is mounted in front of the holder, and both the core and its holder feature central holes for passing the core wire. A pressure‑equalizing ring is installed at the front of the head to balance internal pressures. The extrusion‑coating section consists of a die sleeve holder and a die sleeve; the position of the die sleeve can be adjusted via bolts and supports, allowing precise control over its relative alignment with the die core and facilitating uniformity in coating thickness. External heating and temperature‑sensing devices are also incorporated. Applications and Features: Depending on the screw design and mechanical configuration, this equipment can process sheet or pelletized materials such as PP, PE, PS, PET, ABS, PC, acrylic, and others. It is suitable for producing pellets from virgin resins as well as recycled materials. The granulator offers excellent processing performance, low manufacturing costs, corrosion resistance, electrical insulation, high precision in pellet cutting, efficient hot‑cutting, and easy installation and mobility. The twin‑screw version provides secondary filtration and superior venting, yielding dense, brightly colored pellets with excellent plasticization. Functions and Applications: With specialized screw designs and various configurations, this machine is ideal for producing regenerated and color‑blended pellets from a wide range of plastics, including PP, PE, PS, ABS, PA, PVC, PC, POM, EVA, LCP, PET, PMMA, and more. Its gearbox features a high‑torque design, ensuring quiet, smooth operation. The screw and barrel undergo special hardening treatments, providing wear resistance, superior mixing capabilities, and high production output. Equipped with either vacuum or standard venting ports, it effectively removes moisture and exhaust gases during processing, resulting in more stable discharge, stronger pellets, and consistently high product quality. Plastic pelletizing machines are primarily used to process waste plastic films—such as industrial packaging films, agricultural mulch films, greenhouse films, beer packaging, shopping bags, and more—as well as woven bags, agricultural convenience bags, basins, buckets, beverage bottles, furniture, and everyday household items. They handle most common types of waste plastics, making them the most widely used, versatile, and popular machinery in the plastic recycling industry.

Model XJ-65 XJ-75 XJ-90 XJ-120 Screw Diameter (mm) 65 75 90 120 Length-to-Diameter Ratio 12/14:1 12/14:1 14/16:1 14/16:1 Motor Power (kW) 22 30 45 110 Screw Speed (r/min) 10–70 10–70 10–70 10–70 Production Capacity (kg/h) 60–100 80–160 180–300 300–550 Applications This machine can be widely used in the rubber industry for extruding and molding various rubber products, such as oil-resistant hoses, heating ducts, wire‑reinforced hoses, inner tubes, adhesive tapes, bead wires, and other rubber goods. It can also serve as a heat‑mixing feed unit for small calendering machines. Compared with conventional rubber extruders, cold-feed rubber extruders offer higher production capacity, lower material temperatures, reduced energy consumption, superior mixing quality, uniform plasticization, and increased output. Safety Operating Procedures for Cold-Feed Rubber Extruders: 1. Before starting up, ensure that the die head is securely fitted and free of debris in the feed opening; only then may the machine be powered on. 2. All components must be heated to their specified operating temperatures according to process requirements. Never place your hands near any heated parts. 3. Operators must not insert their hands or fingers into the feed opening. Do not wear gloves when adding material. If foreign objects fall into the feed opening, do not attempt to remove them by hand—stop the machine first. 4. During feeding, if blockages or other abnormalities occur at the feed opening, stop the machine immediately and use specialized tools to resolve the issue. 5. When closing the die head, never place your hands in the area where moving parts come into contact, to prevent crushing injuries. 6. When replacing die inserts, hold them firmly. Do not perform operations near the die head while it is open. Two operators should coordinate closely to avoid injury caused by falling die inserts. 7. When removing excess material from the die head, apply moderate force to prevent injury from the removal tool. 8. While feeding rubber onto the extruder belt, never manually pull the material during operation—stop the machine first before handling. 9. When using a rubber‑cutting knife, ensure the blade is never pointed toward yourself or others. 10. After completing work, cover the feed opening, close the steam/water valves, and disconnect the power supply.

Model SJ-30 SJ-65 SJ-80 SJ-90 SJ-105 Screw Diameter (mm) 30 65 80 90 105 L/D Ratio 25:1 25:1 25/30:1 25/30:1 25/30:1 Motor Power (kW) 2.2 7.5 11–15 15–18.5 22 Machine Center Height (mm) 850 850 850 1000 1100 Screw Speed (r/min) 60 60 60 60 60 Output (kg/h) 5–8 40–80 80–150 150–250 220–330 Applications and Features: The SJ series single-screw extruders mainly consist of a barrel and screw, a power transmission system, heating and cooling mechanisms, and electrical control components. They are primarily used for processing plastics such as PVC, PE, PP, ABS, and TPE. When equipped with various auxiliary machines, they can directly produce plastic products like profiles, sheets, pipes, and pellets through plasticization and extrusion molding. This equipment features advanced design, high output, excellent plasticization, low energy consumption, and hard-toothed gear transmission. It also boasts low noise, smooth operation, strong load-bearing capacity, and long service life. Plastic Extruders: In terms of functionality, efficiency is reflected in high productivity, low energy consumption, and reduced manufacturing costs. Screw-type plastic extruders are no longer limited to extrusion molding and compounding of polymeric materials; their applications have expanded into fields such as food, feed, electrodes, building materials, packaging, pulp, ceramics, and more. Molding Principle: The extrusion process in plastic extruders generally involves melting the plastic at temperatures around 200°C. The molten plastic then passes through a die to form the desired shape. Extrusion molding requires a deep understanding of plastic properties and extensive experience in mold design, making it a highly technical forming method. Extrusion molding is a technique where materials are heated and pressurized within an extruder, allowing them to flow continuously through a die to form specific shapes. This method is also known as "extrusion." Compared with other molding techniques, it offers advantages such as high efficiency and lower unit costs. Extrusion is mainly used for shaping thermoplastic materials, though it can also be applied to certain thermosetting plastics. The resulting products are typically continuous profiles, including tubes, rods, filaments, sheets, films, and coating layers for wires and cables. Additionally, extrusion can be employed for blending, plasticizing and pelletizing, coloring, and mixing plastics. Products formed by extrusion are often referred to as "profiles," and because their cross-sectional shapes are usually irregular, they are also called "special-shaped profiles."

Model XJ-65 XJ-75 XJ-90 XJ-120 Screw Diameter (mm) 65 75 90 120 Length-to-Diameter Ratio 12/14:1 12/14:1 14/16:1 14/16:1 Motor Power (kW) 22 30 45 110 Screw Speed (r/min) 10–70 10–70 10–70 10–70 Production Capacity (kg/h) 60–100 80–160 180–300 300–550 Applications This machine is widely applicable in the rubber industry, suitable for extruding oil-resistant hoses, heating ducts, wire‑reinforced hoses, inner tubes, adhesive tapes, bead wires, and other rubber products. It can also serve as a heat‑mixing supply unit for small calendering machines. Compared with conventional rubber extruders, cold-feed rubber extruders offer higher production capacity, lower material temperatures, reduced energy consumption, superior mixing quality, uniform plasticization, and greater output. Safety Operating Procedures for Cold-Feed Rubber Extruders: 1. Before starting up, ensure that the die head is securely fitted and free of debris in the feed opening; only then may the machine be powered on. 2. All machine components must be heated to their specified operating temperatures according to process requirements. Never place your hands near any heated parts. 3. Operators must not insert their hands or fingers into the feed opening. Do not wear gloves when feeding material. If foreign objects fall into the feed opening, stop the machine immediately and remove them manually. 4. During operation, if blockages or other abnormalities occur at the feed opening, stop the machine and use specialized tools to clear the obstruction. 5. When closing the die head, never place your hands in the contact area between moving parts to prevent crushing injuries. 6. When replacing die head inserts, hold them firmly. Avoid working directly on the die head while it is open; two operators should coordinate carefully to prevent injury caused by falling inserts. 7. When removing excess material from the die head, apply moderate force to avoid injuring yourself with the removal tool. 8. While feeding rubber onto the extruder belt, never attempt to pull the material by hand during operation; stop the machine first and handle it manually. 9. When using a rubber‑cutting knife, ensure the blade is not pointed toward yourself or others. 10. After completing work, cover the feed opening, close the water and steam valves, and disconnect the power supply. Performance Features of Rubber Extruders 1. This machine employs an AC motor with variable-frequency drive, providing a wide speed range and excellent adaptability to producing various rubber product specifications, making operation convenient. 2. Equipped with a dedicated reducer designed specifically for hard-toothed rubber extruders, this machine features low noise, high transmission torque, reliable and smooth operation, and easy maintenance. 3. Utilizing forced feeding via cooled feed rollers, it can process multiple types of rubber strips, delivering high extrusion density and superior product quality. 4. The machine is fitted with a dual-channel automatic temperature controller, ensuring minimal temperature fluctuations during heating. Depending on the specific processing requirements, users can precisely select the desired heating temperature, which is automatically maintained for both the barrel and die head. 5. The barrel can be heated either by water or steam. A circulating cooling system provides instant and dependable cooling of the material, effectively preventing thermal degradation.