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Liquid Silicon Rubber（LSR) Injection Machine

Liquid Silicon Rubber（LSR) Injection Machine

Liquid silicone injection molding, also known as LSR injection molding, silicone injection molding, or liquid silicone molds, involves loading two liquid materials, A and B, into the machine, fully automating the entire process from mixing to molding. While simplifying the process and shortening processing time, it significantly increases production capacity and reduces labor costs, resulting in excellent economic efficiency.

It conveniently produces high-quality products. Furthermore, leveraging the various properties of liquid silicone rubber, it is widely used in various industries, including electrical, electronics, automotive, and food.

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What is Liquid Silicone Rubber Injection Molding Process？

Liquid silicone rubber (LSR) is a popular silicone product among consumers and manufacturers. It offers excellent elasticity, water and moisture resistance, and resistance to corrosion from various chemicals, including acids and alkalis, making it a viable alternative to plastics in everyday products.

Pbear provides a variety of efficient, stable, and energy-saving molding solutions for various industries. Our LSR injection molding machines are specifically designed for liquid silicone rubber molding. We offer turnkey solutions, including factory layout recommendations, silicone molding machines, LSR molds, LSR batching machines, electrical testing equipment, materials, production training, and more. Buyers can enjoy a one-stop shopping experience, saving significant time, effort, and costs. Most importantly, we provide the most professional service, ensuring rapid success for new projects.

Injecting LSR into a hot-runner mold to create silicone products achieves one-shot molding, minimizes waste, and allows for automation.

LSR consists of two components, A and B. These components are mixed in a 1:1 ratio using a metering device, then thoroughly mixed in a static mixer before being injected into the injection molding barrel.

LSR Injiection Machine Applicaiton

1. Liquid silicone baby products, including nipples, bottles, pacifiers, teethers, spoons, bowls, and other baby feeding products.
2. Liquid silicone products – overmolded products with inserts. The inserts can be made of metal, silicone, plastic (PC, PA, PPSU), and other high-temperature resistant materials.
3. Liquid silicone waterproof mobile phone accessories, including overmolded USB connectors, headphone jacks, card trays, overmolded mobile phone cases, and tempered glass film overmolded products.
4. Liquid silicone medical products, including capsules, oxygen masks, laryngeal masks, dental pads, face masks, urinary catheters, airbags, and medical bandages.
5. Liquid silicone high-voltage cable accessories, including rollers.
6. Liquid silicone electronic components, including mobile phone cases, watch straps, O-rings, valves, seals, automotive parts, and solar panels.
7. Liquid silicone diving equipment, including overmolded swimming goggles, overmolded diving goggles, swimming goggle straps, and diving goggle straps.
8. Liquid silicone kitchenware, including cake pans, overmolded spatulas, brushes, and dough sticks.

lSR Injection machine products
  • Dual-cylinder balanced injection system.
  • A dedicated static mixing unit ensures thorough mixing of component A and component B.
  • An all-stainless steel pump and meter ensure stable and reliable compounding.
    Fully enclosed safety baffles and light barriers provide enhanced operational safety.
  • A servo control system reduces energy consumption by 20%-70%.
  • A larger worktop design is available.
    More automated functions are available as options.
  • The main machine is available in both horizontal and vertical configurations.
  • Two-color and three-color injection systems can be customized upon request.

Standard unit

  • Servo system
  • Feed system
  • Totally enclosed grating
  • Hotplate heating zone control

Standard unit

  • Metering pump/variable pump
  • Finished product ejector
  • Mold vacuum system
  • Mold temperature controller
  • Cold runner mold base
  • Third-dose feed system

Parameters

Type BJXY-63T BJXY-90T BJXY-120T BJXY-160T
Clamping force(TON) 63 90 120 160
Toggle Stroke(mm) 270 320 365 425
Platen dimensions(H×V)(mm) 470×480 545×545 615×615 680×680
Space between tie bars(mm) 310×310 365×365 412×412 465×465
Max.Mould Height(mm) 320 380 450 480
Min.Mould Height(mm) 120 150 160 180
Ejector Stroke(mm) 70 100 130 130
Injection unit
Volume Injection(CC) 88 135 214 342
Injection pressure(Mpa) 184 173 168 159
OTHERS
Max.Mump pressure(Mpa) 17.5 16 16 16
Pump Motor Power(KW) 7.5 11 13 15
Heater Power(KW) 7.1 7.9 9.5 14
Total power(KW) 17 21 25 31
Gross weight(Kg) 2500 3500 4000 5300
Machine size(mm) 4000×1100×1800 4200×1200×1900 4700×1200×2000 5000×1400×2200
Remarks: In case of special specification, it may design and manufacture according to customer's need.

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