| Model: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Availability: | |||||||||
| Quantity: | |||||||||
| Chenxing’s Sj series extruder machine delivers 30-300kg/h output with 25% energy savings. CE-certified for plastic pelletizing and recycling. | |||||||||
SJ
Chenxing
Product Description

Single Screw extruder for PP/PE/PPR/PET/PER/PVC granules material is mainly composed of barrel screw, momentum driving system, heating, cooling, and electric controllers etc. It is imainly used in plasticizing and extruding of PVC, PE, PP, ABS, PS, PET pipes, plates, sheets, film, profiles, granulates and other plastic products.
1. Strainer is used before the material enters into the calender to filter out agglomerates and other impurities to protect the calender roller for longer service life.
2. There are single or double heads available, hydraulic station for strainer head locking and opening. The mould can be changed easily, and it will open automatically when the power brake.
3. The machine is mainly used for thermoplastic rubber material's mixing, modification and extrusion molding.
4. The briquetting of rubber semi-finished products, filtering rubber, covering rubber on cable and wire.
5. Hot-feed and single-screw rubber extruder.
6. The rotation speed could be adjusted as you like.
7. By changing the handpiece, we can get different types of rubber-covering semi-products,so it is widely used.
8.PLC intelligent control, can realize the linkage between the main and auxiliary machine.

Product Parameters
Model , Data | SJ-30 | SJ-45 | SJ-55 | SJ-65 | SJ-75 | SJ-90 | SJ-100 | SJ-120 | SJ-150 |
Screw diameter (mm) | 30 | 45 | 55 | 65 | 75 | 90 | 100 | 120 | 150 |
Ratio (L/D) | 25 : 1 | ||||||||
Main motor power (kw) | 4 | 7.5 | 11 | 15 | 22 | 37 | 45 | 55 | 75 |
Barrel heating power (wk) | 3 | 6 | 9 | 12 | 18 | 30 | 36 | 42 | 56 |
Central height (mm) | 1000 | 1100 | 1200 | 1300 | |||||
Screw rotation speed (r/min) | 140 | 120 | 100 | 90 | 85 | 75 | 70 | 60 | 60 |
Plasticization capacity (kg/h) | 30 | 50 | 70 | 80 | 100 | 130 | 160 | 200 | 300 |
Remarks: all information above is only for refererence; please gather the exact data by contacting us.
FAQ
The Key to Precision Feeding in Modern Plastic Extrusion and Recycling SystemsIn today’s plastic manufacturing industry, production efficiency and material accuracy are more important than ever. Whether in plastic extrusion, compounding, recycling, or automatic batching systems, even a small feeding
The Essential Air Separation Equipment in PET Bottle Recycling LinesAs the global recycling industry moves toward higher-quality recycled plastics, efficient material separation has become one of the most important steps in modern recycling systems. In PET bottle recycling, one major challenge is se
What is a Constant Pressure Variable Frequency Water Supply System?A Constant Pressure Variable Frequency Water Supply System is an intelligent water supply solution that uses variable frequency drive (VFD) technology to maintain a stable and consistent water pressure in industrial processes, regard
What is a Friction Washer?A friction washer is a high-speed mechanical cleaning machine used in plastic recycling lines to remove surface contaminants such as dirt, sand, labels, oil residues, and fine impurities from plastic flakes or film materials.In modern recycling engineering, it is widely app
A Complete Guide to PET Bottle De-Labeling Technology in Plastic RecyclingAs the global plastic recycling industry continues to expand, recycling companies are placing greater emphasis on improving recycled material purity and operational efficiency. One of the most important steps in PET bottle rec
The Core Cleaning and Separation Equipment in Modern Plastic RecyclingAs global demand for recycled plastics continues to grow, recycling companies are under increasing pressure to produce cleaner, higher-quality recycled materials. Whether processing PET bottles, PP/PE films, or rigid plastic waste
In modern plastic processing industries, especially PVC compounding, pipe extrusion, profile production, and recycling modification, mixing technology plays a decisive role in product quality. Two core machines dominate this stage: the hot mixing unit (SHR series) and the cold mixing unit (SHL serie
When importing plastic machinery such as extrusion lines, recycling systems, or mixing equipment, one of the most important commercial decisions is choosing the right trade term.Two of the most commonly used Incoterms are FOB (Free On Board) and CIF (Cost, Insurance, Freight).Although both are widel
In the plastic processing industry, the quality of your final product is dictated by the very first step: mixing. Whether you are preparing complex PVC formulations for durable pipe extrusion lines or blending resins with liquid additives, a standard mixer often falls short.Many plant managers ask u
Introduction: Why Perler Beads Production Requires Specialized Extrusion TechnologyWith the rapid growth of DIY crafts, educational toys, and creative materials, Perler beads (also known as fuse beads or ironing beads) have become a high-demand product globally. However, producing consistent, high-p
Introduction: Why New Composite Building Materials Matter TodayPlastic waste is one of the defining environmental challenges of our era — yet it is also a feedstock with enormous untapped value. Advances in recycling technology now let plants convert post-consumer and post-industrial plastics into r
Chenxing Machinery to Exhibit at CHINAPLAS 2026 in ShanghaiChenxing Machinery is pleased to announce its participation in the upcoming CHINAPLAS 2026, one of the world’s most influential exhibitions for the plastics and rubber industry.The event will be held from April 21 to April 24, 2026 at the pr
Revolutionizing Material Recovery: AI-Powered Sorting Systems in Modern Plastic RecyclingThe integration of artificial intelligence into plastic recycling operations marks a paradigm shift in how the industry addresses the fundamental challenge of material heterogeneity. Traditional sorting methods

