Silicone injection molding machine: an efficient solution for precise molding of flexible materials

With the increasing demand for flexible, safe and high-performance materials in the medical, maternal and child, automotive, electronics and other industries, liquid silicone (Liquid Silicone Rubber, LSR for short) has become an important raw material for various high-end products. In order to achieve high-precision and high-efficiency production of liquid silicone products, silicone injection molding machine came into being and gradually developed into one of the mainstream equipment for flexible material processing.
Silicone injection molding machine is a kind of injection molding equipment specially used for processing liquid silicone materials. It completes the molding of two-component liquid silicone in the mold through precise metering, mixing, heating and injection. Compared with traditional thermoplastic injection molding equipment, silicone injection machine pays more attention to temperature control stability, mixing uniformity and controllability of injection pressure to adapt to the special fluidity and curing characteristics of silicone materials.

Silicone injection molding usually uses an A/B two-component mixing system:
Group A and Group B liquid silicone are delivered from the storage barrel by a proportional pump at a ratio of 1:1;
After passing through a static mixer, a uniform mixture is formed;
The mixture enters the injection unit and is injected into the heated mold through a screw;
The silicone in the mold is rapidly vulcanized and formed at high temperature, and the product is finally demolded and taken out.
The entire process is highly automated, with a short molding cycle and high consistency of finished products, which is particularly suitable for batch production of small and fine industrial products.
High-precision injection system
Silicone has extremely high requirements for injection pressure, speed and temperature. The injection system uses servo control and high-precision proportional valves to ensure uniform material distribution and avoid bubbles and material shortages.
Fully sealed anti-pollution structure
Suitable for dust-free workshops and medical-grade production environments to avoid raw material contamination and ensure product safety.
Multi-cavity rapid molding capability
Multiple products can be injected at a time, greatly improving efficiency, suitable for large-volume order production.
Automatic demoulding system
With a robot, cooling device and automatic counting function, it saves manpower and improves efficiency.
Energy saving and environmental protection
The servo drive system and low-energy hydraulic circuit are used to effectively reduce operating costs.
Medical industry: such as silicone catheters, masks, syringe pistons, and anti-slip mats;
Mother and baby products: pacifiers, bottle accessories, chewing music, and food bowls;
Electronic accessories: waterproof seals, key pads, silicone sheaths, and cable connectors;
Automotive industry: engine seals, buffer washers, and silicone buttons;
Daily necessities: kitchen silicone molds, bracelets, and fitness equipment accessories.
Micro injection molding: With the development of microelectronics and medical devices, the demand for micro high-precision silicone parts is increasing;
Multi-material composite injection molding: Compound with hard plastics, metals and other materials to develop more complex functional products;
Intelligent control system upgrade: Realize remote monitoring, automatic diagnosis and data tracking, and improve the level of workshop intelligence;
Environmental protection and green manufacturing: Equipment manufacturers are developing low-energy, leak-free, and recyclable system solutions.
As a representative of the combination of advanced molding technology and high-performance materials, silicone injection molding machines are helping all walks of life move towards a new era of "flexible, precise, and safe" product design. Its high efficiency, precision and automation not only improves product quality, but also optimizes the manufacturing process. It is an indispensable core equipment for realizing high-end manufacturing and smart factories.