When sourcing automated liquid silicone rubber (LSR) batching, metering, and mixing equipment from China, the market is primarily divided into two categories of suppliers: those specializing in heavy-duty LSR feeding units for injection molding, and those specializing in precision micro-dispensing/potting systems.
Dongguan Jinyu Automation Equipment Co., Ltd. (Jinyu Machinery) manufactures and supplies this type of equipment.
Jinyu's product range covers automated batching, metering, and mixing solutions tailored for multi-component liquid silicone systems:
1. Dedicated Batching and Mixing Equipment
Automated Batching and Mixing Machines: Developed and upgraded specifically for automated material preparation (silicone base, curing agent, pigment, and diluent/solvent).
Integrated Metering System: Closed-loop multi-channel metering device designed to eliminate human weighing errors, maintain viscosity uniformity, and provide bubble-free material delivery.
Metering Configuration: The required number of independent component channels (e.g., A/B-based silicone + 1 curing agent channel + 1 diluent/pigment channel).
Viscosity and Proportioning Range: The specific mixing ratio (e.g., additive ratio of 100:1 to 100:10) and injection volume required for your mold.
2. Upstream and Downstream Integration
Depending on the production process, Jinyu integrates these batching units into two main production configurations:
Micro-volume Multi-color Dispensing Production Line: Used in conjunction with multi-nozzle dispensing machines (12/16/18-color production lines) for the production of liquid silicone garment patches, 3D labels, shoe accessories, and protective cases.
Integrated Liquid Silicone Injection Molding Production Line: Directly integrated with vertical liquid silicone injection molding machines (30 tons to 100 tons) and hydraulic vulcanizing machines, directly injecting precise A/B mixtures and vulcanizing aids into the mold cavity.
Target Application: Whether the material is intended for micro-volume dispensing/drip molding or direct feeding into a hydraulic molding machine(hydraulic machine)/liquid silicone rubber injection molding machine.
The parameters of Jinyu Machinery silicone dosing machine:
| Name |
Intelligent silicone batching machine |
| Model |
JY-D01-4040-V4 |
| Voltage |
380V,3phase |
| Silicone bucket capacity |
20L |
| Size of vacuum box |
400x390x595mm |
| Vacuum pump power |
4KW |
| Pump type |
XD - 140(Silent type) |
| Motor |
57 stepper |
| Total Power |
5.3KW |
| Weight |
600KG |
| External dimensions |
1553x853x1770mm |
| Syringe capacity |
200ML |
Jinyu Machinery, a well-known Chinese brand of rubber and plastics industrial equipment, offers automated liquid silicone rubber (LSR) batching, metering, and dispensing equipment, LSR pumping and batching systems, LSR injection molding machines, two-component (A/B) continuous batching units, and automated colorant/diluent metering pumps.
Key Advantages: High-precision servo-driven plunger pumps designed for continuous online feeding in injection molding machines. Ideal for medical, automotive, and high-volume injection molding of silicone parts.
Specialized Applications: Industrial-grade LSR feeding systems, precision metering pumps, and turnkey automated molding production lines. High stability, closed-loop pressure and volume control, and seamless integration with large-scale production equipment. Automated 2K/3K metering, dynamic mixing, vacuum potting, and precision dispensing equipment. Capable of handling multi-viscosity materials (high-viscosity silicone base material with low-viscosity curing agent/diluent). Employs closed-loop gear pump technology and integrated vacuum degassing function.
Main Applications in Subsequent Production Lines: Multi-color liquid silicone dispensing machines, 3D label dispensing machines, and automated raw material batching systems. Provides precise micro-dispensing for apparel patches, everyday items, gifts, consumer accessories, and multi-nozzle silicone applications.
Pump System Compatibility: Piston/Plunger Pumps: Suitable for pumping standard high-viscosity 1:1 LSR A/B components or abrasive silicone base materials. Precision Gear Pumps: Suitable for low-viscosity additives, curing agents, and thinners requiring continuous, pulsation-free flow. Dynamic and Static Mixing Modules: If there is a significant viscosity difference between the base liquid silicone and the thinner/curing agent, ensure the equipment includes an in-line dynamic mixer. PLC Control and Calibration: Verify that the PLC (e.g., Inovance, Siemens, or Delta) supports multi-channel proportioning and automatic flushing/cleaning cycles.
Furthermore, Jinyu Machinery's liquid silicone injection molding machine is a stand-alone molding unit with hydraulic clamping, a complete injection feeding system, and a molding system. From automatic proportioning and mixing of two-component AB silicone material and C-component pigment to low-temperature injection into a closed high-temperature mold, and then to high-temperature vulcanization molding within the mold cavity, it can produce baby pacifiers, teething toys, tableware, electronic accessories, automotive and aerospace seals, and other products.
