Standard LSR Mold | 2-Platen Mold for O-Rings & Seals | TYM
TYM's standard LSR mold with 2-platen design, ideal for O-rings, axial seals and general silicone parts. 20+ years of precision mold manufacturing.
Standard Mold (2-Platen): A Reliable Foundation for Simple, High-Volume Parts
The standard mold uses a classic 2-platen structure — the most fundamental and widely used mold type in LSR injection molding. Its simplicity translates into shorter development cycles, lower tooling costs, and consistent long-term precision, making it the ideal choice for small-to-medium batch production of standardized silicone parts.
With over 20 years of experience in LSR mold design and manufacturing, TYM's standard molds are widely used for O-rings and axial seals — parts that demand high dimensional accuracy and consistency. Our needle-valve cold runner system enables gate-free, flash-free molding, reducing secondary trimming and improving yield.
Key Advantages
● Simple structure means faster lead times and more competitive tooling costs
● Stable dimensional precision suited for high-volume repeat production
● Cavity count and layout customizable based on customer drawings
● Compatible with both horizontal and vertical LSR injection machines
Typical Applications O-rings, axial seals, gaskets, and general standardized silicone sealing components.
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Industry |
Typical Products |
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Baby Care |
Simple-shape pacifiers, pacifier bodies, breast pump silicone gaskets |
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Kitchenware |
Silicone mats, lids, trivets, spatula heads |
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Medical Devices |
Simple seals, basic catheter connector seals |
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Bath & Sanitary |
Silicone seal rings, anti-slip mats |
Standard molds are best suited for parts with regular geometry, no undercut features, and straight open/close demolding — making them the most widely used mold type across baby-care, kitchenware, medical, and bath/sanitary consumer silicone products, typically representing the largest share of a factory's product line.
Applications of Standard 2-Platen LSR Molds
Standard 2-platen LSR molds are used for liquid silicone rubber parts with simple geometries, sealing profiles, flat surfaces, or repeatable cavity layouts. TYM supports mold engineering for silicone O-rings, sealing gaskets, baby-care silicone parts, shower nozzle plates, and other standard silicone molded components.



containers, storage jars, and daily-use products that need a tight, reusable seal.

rubber nozzles formed in a single shot. Used inside shower heads and bathroomfixtures, where the flexible silicone nozzles resist limescale build-up and stay clog-free.
FAQ
How long does it take to develop a standard mold?
Depending on product complexity and cavity count, development typically takes 15-30 working days. Simple single/multi-cavity O-ring molds can be faster — we provide an accurate lead time estimate once we receive your product drawings.
What order volumes is the standard mold best suited for?
The standard mold's stable structure and low wear rate make it ideal for medium-to-large, long-term repeat production orders. For sampling or very small batches, we can also recommend an appropriate cavity configuration to control costs.
Can multi-cavity layouts be designed into a standard mold?
Yes. We assess the appropriate cavity count and mold base layout based on your target output, machine tonnage, and part size, balancing precision with production efficiency.
Is the standard mold compatible with different brands of LSR injection machines?
Our standard molds follow common mold base interface standards and are compatible with most mainstream horizontal/vertical LSR injection machines. Please confirm your specific machine model with our engineering team.
Related LSR Machines, Molds & Dosing Systems
Explore related TYM solutions for liquid silicone rubber production, including LSR injection molding machines, precision silicone molds, dosing systems, and supporting equipment for different molding applications.
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