Silicone Car Key Cover Molding Vertical Liquid Silicone Rubber Injection Molding Machine

Liquid silicone injection moulding machines employ cold runner technology for high-precision, high-efficiency automated production of silicone products.

After precisely blending the low-temperature liquid A and B components of silicone in the correct ratio, the mixture is pressurized by a screw and injected into the high-temperature mould cavity. Under heating, a rapid chemical cross-linking reaction occurs, causing the material to cure and form.

• Raw Material Delivery and Mixing: Liquid silicone rubber components A and B are stored separately, conveyed in fixed ratio to a static mixer for thorough blending.
• Injection Moulding: Mixed silicone is propelled through a cold runner system and injected into preheated mould cavity.
• High-Temperature Vulcanisation: Heated mould initiates rapid chemical cross-linking reaction, solidifying the silicone.
• Pressure Holding and Cooling: Constant pressure maintains dimensional accuracy before cooling and product removal.
• Automation: Entire process operates as cyclical automated sequence for maximum efficiency.

• Raw Material State: Uses liquid raw materials vs. conventional solid materials
• Forming Method: Chemical cross-linking reaction vs. cooling solidification
• Temperature Control: Cold runner technology with heated mould vs. heated barrel and cooled mould