High-Precision Liquid Silicone Injection Mold Manufacturing
Our liquid silicone injection molds (LSR molds) are engineered for high-volume, high-precision silicone part production. Designed for OEM and ODM projects, these molds support complex geometries, tight tolerances, and long-term industrial use.
They are ideal for manufacturers seeking stable production efficiency and consistent product quality in silicone rubber molding applications.
Advanced Mold Engineering Technology
We utilize modern CNC machining, EDM processing, and high-precision polishing techniques to ensure mold accuracy and durability.
Key engineering advantages include:
- Multi-cavity mold design for mass production
- High-precision machining tolerance control
- Optimized runner system for efficient material flow
- Hot runner system compatibility for LSR injection
Key Features
Precision Mold Structure
- Designed for liquid silicone rubber injection systems
- High dimensional accuracy for complex components
- Stable performance under continuous production
Durable Tooling Material
- High-grade hardened steel (S136, H13, or equivalent)
- Corrosion-resistant surface treatment
- Extended mold lifespan for industrial production
OEM/ODM Flexibility
- Custom mold design based on product drawings
- Prototype development and sample validation
- Support for multi-cavity and multi-shape molds
Efficient Production Performance
- Reduced cycle time for mass production
- Stable injection flow system
- Minimized material waste and defects
Applications
Liquid silicone injection molds are widely used in:
- Medical device components
- Automotive sealing systems
- Electronic insulation parts
- Baby care products (nipples, pacifiers)
- Industrial sealing and protection parts
Benefits for B2B Buyers
- High-efficiency mass production capability
- Consistent product quality across batches
- Reduced long-term manufacturing cost
- Strong mold durability and low maintenance
- Faster product development cycle for OEM brands
Technical Specifications
| Item | Description |
|---|---|
| Mold Type | Liquid Silicone Injection Mold (LSR Mold) |
| Material | Tool Steel (S136 / H13 / P20) |
| Cavity | Single / Multi-cavity (customizable) |
| Runner System | Cold runner / Hot runner compatible |
| Tolerance | ±0.01 mm – ±0.02 mm |
| Surface Treatment | Polishing / Nitriding / Coating |
| Mold Life | 300,000 – 1,000,000 cycles |
| Design Support | 2D / 3D CAD customization |
OEM / ODM Custom Mold Service
We provide full customization support for global clients:
- Product structure optimization
- Mold flow analysis and simulation
- Prototype mold development
- Mass production mold manufacturing
- Branding and private mold solutions
FAQ
What is a liquid silicone injection mold used for?
It is used to produce high-precision silicone rubber parts through injection molding technology.
Can you customize LSR molds based on drawings?
Yes, we provide full OEM/ODM customization based on 2D or 3D design files.
What industries use LSR injection molds?
Medical, automotive, electronics, baby products, and industrial sealing industries.
What is the lifespan of your molds?
Depending on design and material, mold life can reach 300,000 to over 1,000,000 cycles.





