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The co-rotating twin-screw extruder from Nanjing Kaiyou Rubber & Plastic Machinery Co., Ltd is available in three models: HKY-35, HKY-50, and HKY-65, with screw diameters of 35.6mm, 50.5mm, and 62.4mm respectively. Each model features a modular barrel system with L/D ratios from 32:1 to 56:1, and operates at a maximum screw speed of 600rpm. The extruders are driven by gearboxes designed for high torque output, supporting outputs from 5kg/h to 300kg/h depending on model and material.
The extruder uses a building block principle, allowing screw and barrel configurations to be swapped for different processing tasks such as devolatilization, reactive extrusion, or polymer blending. The gearbox is a new design with improved torque density, enabling high output at 600rpm without overheating. The system is compatible with engineering polymers, glass fiber reinforcement, masterbatches, and powder coatings. The PLC control system allows for programmable temperature and speed profiles.
This equipment is used by compounders producing specialty plastics, cable materials, and functional granules. Buyers typically require consistent melt temperature control and low shear degradation. The extruders are shipped fully assembled or in major subassemblies. Installation requires a 380V 50Hz power supply, compressed air, and a vibration-isolated foundation. Buyers should confirm whether the unit includes auxiliary devices such as pelletizers or feeders.
| Screw diameter (HKY-35) | 35.6mm |
| Groove depth (HKY-35) | 6mm |
| L/D ratio range | 32:1 to 56:1 |
| Main motor power (HKY-35) | 18.5kW |
| Main motor power (HKY-50) | 55kW |
| Main motor power (HKY-65) | 90kW |
| Maximum screw speed | 600rpm |
| Output capacity (HKY-35) | 5kg/h to 80kg/h |
| Output capacity (HKY-50) | 100kg/h to 300kg/h |
| Output capacity (HKY-65) | 150kg/h to 450kg/h, typical for 62.4mm diameter at 600rpm |
| Typical barrel configuration | Modular, segmented with heating/cooling zones, standard for compounding extruders |
| Typical control system | PLC-based with HMI, standard for modern twin screw extruders |
| Typical screw material | 38CrMoAlA or 42CrMo4 alloy steel, nitrided to 800-950 HV, standard for abrasive compound processing |
Nanjing Kaiyou Rubber & Plastic Machinery Co., Ltd is located in Nanjing, Jiangsu Province, and manufactures twin screw extrusion systems for polymer compounding. The supplier references ISO 9001 certification in its listing, but no certificate number or audit date is provided. It claims to assemble auxiliary devices and use machining centers, suggesting internal fabrication capability.
No company history, employee count, export volume, or client list is disclosed. The listing does not indicate whether the supplier holds export licenses or has undergone third-party factory audits. Buyers should request a copy of the ISO 9001 certificate, a video of the assembly line, and a list of recent export destinations before committing to an order.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Before placing an order, verify the exact model number and configuration of the extruder, especially the screw profile and barrel length. Request the PLC software version and a sample of the control interface. Confirm whether the ISO 9001 certificate is current and issued by an accredited body. Ask for a video of the machine running with a standard compound under load.
Logistics are typically shipped FOB Nanjing or CIF destination port. Lead time is generally 8 to 12 weeks, depending on customization. Payment terms are commonly 30% advance, 70% against bill of lading. Incoterms should be clearly defined. The machine is usually packed in wooden crates with desiccant and anti-rust coating. Confirm if installation tools and spare parts are included.
Quality inspection should include a 2-hour dry run at 50% speed and a 4-hour wet run with your target compound. Request the final inspection report with torque readings, temperature stability logs, and vibration measurements. Documentation must include a material certificate for all wetted parts, a PLC program backup, and an English operation manual. Insist on a signed performance acceptance document before final payment.
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When importing Co-Rotating Twin-Screw Ex from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
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