Guangzhou S-guangyu Machinery &Equipment Co., Ltd
                                                                                                           
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Since 2010/10/22
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Liquid Silicone Waterproof Automotive Sealing Strip Liquid Silicone Injection Molding Machine

Price Negotiable
Price: USD40999-USD81999per set
MOQ: 1 SET
Delivery Time: 50 days
Brand: Better
Product Description
Liquid Silicone Waterproof Automotive Sealing Strip Liquid Silicone Injection Molding Machine

Liquid silicone injection moulding machines employ cold runner technology. After precisely blending the low-temperature liquid A and B components of silicone in the correct ratio, the mixture is pressurised by a screw and injected into the high-temperature mould cavity. Under the mould's heating action, a rapid chemical cross-linking reaction occurs, causing the material to cure and form. This achieves high-precision, high-efficiency automated production.

Working Principle Flow
  1. Raw Material Delivery and Mixing: Liquid silicone rubber typically comprises two components stored separately. An automatic feeder conveys them in fixed ratio to a static mixer where thorough blending occurs.
  2. Injection Moulding: Mixed liquid silicone is propelled by a screw through a cold runner system that prevents premature curing, then rapidly injected into preheated mould cavity.
  3. High-Temperature Vulcanisation: Within the heated mould, components undergo rapid chemical cross-linking reaction (thermal curing), solidifying into stable silicone products.
  4. Pressure Holding and Cooling: Constant pressure ensures dimensional accuracy during curing. After moulding, the product is cooled and removed.
  5. Automation: The entire process operates as a cyclical automated sequence, minimizing manual intervention and enhancing efficiency.
Key Differences from Conventional Injection Moulding
  • Raw Material State: Uses liquid raw materials vs. conventional solid materials
  • Forming Method: Chemical cross-linking reaction (thermosetting) vs. cooling solidification
  • Temperature Control: Cold runner technology with mould heating vs. barrel/mould heating and cooling
Technical Specifications
BETTER Vertical LSR Injection Molding Machine
Clamping Force 85 tons
Size 1135 × 495 mm
Max Mold Size 500 × 475 mm
Min Mold Height 210 + 50 mm
Mold Stroke 250 mm
Max Daylight 460 + 50 mm
Ejector Force 3 tons
Thimble Diameter Φ25
Ejector Distance (Product) 105 (75) mm
Max Hydraulic Pressure 140 kg/cm²
Cooling Water 1500-1800 liters/hr
Electrothermal Power 4 kW
Motor 13 kW
Dimensions (L×W×H) 2.17 × 2.23 × 2.83 m
Weight 4.5 tons
Liquid silicone injection molding machine operational view
Close-up of liquid silicone injection molding machine components

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Company Guangzhou S-guangyu Machinery &Equipment Co., Ltd
Location No.7,Guanda Road ,Yunpu Industrial,Huangpu District,Guangzhou,Guangdong,China
Contact Person Pelly

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