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 Production Rate (kg/h) 5–8 40–80 80–150 150–250 220–330 Thermoplastic elastomer materials are a type of modified plastic whose physical properties closely resemble those of conventional plastics. Therefore, during production, we typically use plastic extruders to carry out extrusion processes. However, the extrusion pressure and plasticization performance required for these materials differ somewhat from those of standard plastics. Consequently, specialized equipment must be custom-designed for their processing. Common Issues in Thermoplastic Elastomer Extrusion and Their Solutions 1. Rough Surface on Extruded Products When the surface of an extruded product appears rough rather than smooth, this is usually caused by inadequate plasticization. To address this issue, selecting an appropriate extruder is essential; additionally, setting proper process parameters such as temperature, screw speed, and filter mesh type plays a critical role. Furthermore, using higher temperatures and finer mesh filters can enhance plasticization efficiency. Some thermoplastic elastomer raw materials inherently contain high levels of hygroscopic components or fillers, making pre-drying prior to molding crucial. Failure to dry the material before extrusion may result in problems like foaming or a rough surface. 2. Unstable Extrusion Output Fluctuations in extrusion output represent an unstable condition. The primary cause often lies in variations at the feed zone or compression section of the screw, where melting points fluctuate irregularly, leading to unpredictable changes in extrusion volume and cycle times. These issues can arise due to mismatched screw geometry or unsuitable processing conditions. Thus, adjusting processing parameters and replacing the screw with one having different geometry is vital. Additionally, significant temperature fluctuations within the extruder can also destabilize material flow. Lastly, slippage between the screw and pellets at the feeding zone may further contribute to unstable extrusion.

Model Length-to-Diameter Ratio Motor Power (kW) Specifications (mm) Production Capacity (kg/h) SJ-45 30:1 7.5 12–40 20 SJ-65 30:1 11 40–200 80 Applications This production line is designed for manufacturing spiral-reinforced flexible hoses, comprising two extruders, a forming machine, and a cooling tank. The hose wall features both soft and hard material spirals to enhance pressure resistance. These hoses exhibit excellent properties such as resistance to crushing, corrosion, and negative pressure, along with good flexibility and superior flow characteristics. They are suitable for conveying gases, liquids, and granular materials, and find applications in industries, agriculture, construction, and water‑irrigation systems. Spiral Protective Sleeves Spiral protective sleeves are external protective products made from PP or nylon materials through specialized processing techniques. Typically shaped in a spiral form, they are also referred to as spiral rubber hose protectors. These spiral sleeves are ideal for hydraulic hoses, providing effective protection. In addition to enhancing aesthetics and improving restraint, they can extend the service life of the hose by more than three years. PE carbon‑reinforced spiral‑enhanced pipes have seen rapid development in recent years and are currently regarded as excellent conduits for protecting power cables. Their material boasts favorable chemical properties, including excellent insulation and voltage resistance, high toughness, and strong corrosion resistance, enabling them to withstand long-term exposure to acids and alkalis. Consequently, these pipes offer an extended service life. 1. Temperature control via PIC or temperature controllers. 2. High extrusion output with low melt temperatures. 3. Screw design optimized for high efficiency and productivity. 4. Helical gear design featuring high hardness and low noise, delivering superior performance and prolonged service life. 5. Standard DC speed regulation; optional variable-frequency and electromagnetic speed controls available. 6. Extruders can be easily interchanged to accommodate different materials.

Model SJ-45 SJ-65 SJ-80 SJ-90 SJ-120 Screw Diameter (mm) 45 65 80 90 120 L/D Ratio 25:1 25/28:1 25/28:1 25/28:1 25:1 Motor Power (kW) 7.5 11–15 15–18.5 18.5–22 45 Screw Speed (r/min) 30–100 30–100 30–100 30–100 30–100 Production Capacity (kg/h) 15–25 30–70 50–100 80–180 200–350 Applications: This production line is designed for manufacturing plastic pipes and profiled extrusions of various specifications, primarily producing pipes with different diameters and wall thicknesses used in agricultural irrigation and drainage, building water supply and drainage, and cable laying applications. It is suitable for producing pipes made from materials such as PP, PE, PS, ABS, PVC, PPC, and other resins. The barrel and screw are specially designed to ensure efficient extrusion and excellent plasticization. Analysis of Plastic Pipe Production Lines: As an important component of chemical building materials, plastic pipes have been widely accepted by users due to their favorable performance and hygienic properties. Common types include UPVC drainage pipes, UPVC water supply pipes, aluminum-plastic composite pipes, and PE water supply pipes. A typical pipe production line consists of a control system, an extruder, a die head, a sizing and cooling system, a haul-off unit, a planetary cutting device, and a material-turning rack. The line usually includes two extruders: the main extruder features a high‑capacity conveying sleeve and an efficient screw design, while a smaller auxiliary extruder is used to produce marking lines. When a plastic pipe production line encounters malfunctions, it can lead to surface roughness, vibration rings, or lack of vacuum—issues that directly affect product quality. Therefore, timely troubleshooting is essential to maintain high-quality output. PVC Pipe Applications: PVC pipes are manufactured primarily from PVC resin powder. They are generally categorized according to their intended use, including drainage pipes, water supply pipes, conduit pipes, and cable jacketing pipes. Since the raw material formulations differ, the resulting pipes exhibit varying levels of pressure resistance and other performance characteristics. PVC water supply pipes, paired with appropriate fittings, are commonly employed in residential water supply systems, whereas PVC drainage pipes serve sewage disposal purposes.

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 Types and Features of Silicone Tube Extruders A silicone tube extrusion unit typically consists of an extruder main machine, auxiliary equipment, and a control system. The main machine includes the extrusion system, transmission system, heating system, and die head. The extrusion system mainly comprises the screw and barrel. The transmission system drives the screw, providing torque and rotational speed. The heating and cooling system regulates temperature during operation. The die head shapes the final product. Auxiliary equipment includes machines required for completing the process, such as traction devices, cooling units, cutting mechanisms, winding systems, and weighing devices. The control system primarily consists of electrical components, instrumentation, and actuators. Advantages 1. Utilizes a specially designed screw, barrel, die head, and die mold for silicone, along with a water circulation system that ensures internal vulcanization. 2. Employs a self-centering die head and either automatic or manual water-cooling control systems tailored specifically for silicone applications. 3. Equipped with a precise automated detection and feedback system, ensuring all wire parameters meet standards, reducing scrap rates, and significantly lowering costs. 4. Features a multi-layered circumferential vulcanization oven design—featuring a high-temperature shaping oven at the front end and a coil-wrapping structure at the rear—extending the vulcanization time, improving vulcanization efficiency, and ultimately boosting production output. 5. Incorporates a combined design of cable storage racks and ovens, allowing overlapping placement to save valuable floor space. 6. Includes a feed roller synchronized with the screw, enabling automatic material intake by the main machine without the need for additional feeding devices. Characteristics of Silicone Rubber Cables 1. Long-term operating temperature of the conductor: 180°C. 2. During short-circuit conditions (lasting up to 5 seconds), the conductor temperature does not exceed 350°C. 3. Permissible bending radius: For cables without armor or shielding, the minimum bending radius should be no less than 10 times the cable’s outer diameter; for armored or shielded cables, it should be no less than 12 times the outer diameter. 4. Installation temperature: Not lower than -20°C; if installation occurs below this threshold, the cable must be preheated. This machine is ideally suited for producing insulated or sheathed wires using silicone tubing, offering convenient operation.