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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›The Double Conical Screw Extruding Sheeter from China Dalian Second Rubber & Plastics Machinery Co., Ltd. is a twin-screw extrusion system designed to convert compounded rubber into continuous sheets. It integrates mixing, sulfur addition, and sheeting functions into a single unit, serving as a downstream auxiliary to internal mixers in rubber production lines. The machine operates at high shear rates with precise temperature control to prevent premature curing.
The twin screws are constructed from hardened alloy steel with a wear-resistant coating, designed for continuous operation with thermoplastic and thermoset rubbers. The conical screw geometry allows for progressive compaction and uniform extrusion. Typical output rates range from 50 to 200 kg/hour, depending on compound viscosity and screw speed. The sheeting rollers are heated and cooled via circulating thermal oil, with surface temperature control within ±2°C.
This equipment is used by tire manufacturers, industrial rubber product makers, and compounders requiring inline sheeting after internal mixing. The machine is typically installed as part of a production line with a Banbury mixer and conveyor system. Trade terms are FOB Dalian, with packaging in steel-frame wooden crates. Installation requires skilled personnel and utility connections for power, cooling water, and compressed air.
| Screw Type | Conical twin-screw, counter-rotating |
| Screw Material | Hardened alloy steel with wear-resistant coating |
| Typical Output Rate | 50 to 200 kg/hour |
| Screw Speed Range | 5 to 60 rpm |
| Sheet Thickness Range | 1 to 15 mm |
| Roller Surface Temperature Control | ±2°C via circulating thermal oil |
| Typical Motor Power | 30 kW to 90 kW |
| Typical Cooling System | Closed-loop thermal oil circuit with heat exchanger |
| Typical Feed System | Gravity-fed hopper with vibratory feeder |
| Typical Control System | PLC-based with touch-screen interface for speed, temp, and pressure |
China Dalian Second Rubber & Plastics Machinery Co., Ltd. is a manufacturer based in Ganjingzi District, Dalian, Liaoning, with a facility covering 150,000 square meters. The company reports 530 employees, including 440 production workers and 86 engineering staff. It has been in operation since 1972 and lists internal mixers, open mills, and calenders among its main products.
The listing claims an industrial output value of 150 million yuan but provides no audited financials or export records. No certifications such as ISO 9001 or CE are mentioned. The supplier’s experience in rubber machinery is evident from its product range, but no technical documentation, test reports, or client references are provided in the listing.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Verify the screw material composition and coating type before ordering, especially if processing abrasive compounds. Request a material test report for the hardened alloy steel and confirm the hardness rating (HRC) and coating thickness. Ensure the barrel and screw assembly has been dynamically balanced to prevent vibration during high-speed operation.
Confirm the Incoterms - likely FOB Dalian - and whether the supplier provides installation support on-site. Lead time is typically 10 to 16 weeks for custom configurations. Payment terms are likely 40% advance, 50% before shipment, and 10% after commissioning. Ensure the machine is shipped with all control panels, safety guards, and spare wear parts, including screw tips and roller sleeves.
Upon delivery, perform a mechanical alignment check of the screws and rollers using dial indicators. Run a test cycle with a standard compound and record torque, temperature, and output rate. Validate the PLC interface by simulating fault conditions and confirm that emergency stops and interlocks function as described. Retain the first three sheets produced for lab analysis of thickness variation and surface quality.
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