Recent Posts
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![Meet TYM at K 2025 -The World’ s No.1 Trade Fair for Plastics and Rubber]()
Meet TYM at K 2025 -The World’ s No.1 Trade Fair for Plastics and RubberWelcome to the World’s No.1 Trade Fair for Plastics and Rubber -K 2025, taking place from October 8–15, 2025 at Messe Düsseldorf, Germany. As a professional LSR injection molding machine, mold, and robot solution provider, TYM Technology Co., Ltd. is proud to present our latest innovations at Booth 16E77.
09/23/2025
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![How Automated Material Feeding Improves LSR Manufacturing Efficiency]()
How Automated Material Feeding Improves LSR Manufacturing EfficiencyAs labor costs continue to rise and quality requirements become stricter, manufacturers are increasingly adopting automated material feeding systems in liquid silicone rubber production.
06/09/2026
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![How Does Vacuum Assistance Improve LSR Injection Molding Quality?]()
How Does Vacuum Assistance Improve LSR Injection Molding Quality?In liquid silicone rubber (LSR) manufacturing, product quality is heavily influenced by how effectively air is removed from the mold cavity. Trapped air can lead to bubbles, incomplete filling, surface defects, and reduced product consistency.
06/08/2026
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![Why Is Shot Size Accuracy Important in Liquid Silicone Rubber Molding?]()
Why Is Shot Size Accuracy Important in Liquid Silicone Rubber Molding?Precision is one of the key advantages of liquid silicone rubber molding. However, achieving consistent product quality depends heavily on accurate shot size control.
06/08/2026
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![How Clamp Force Selection Affects LSR Injection Molding Performance]()
How Clamp Force Selection Affects LSR Injection Molding PerformanceClamping force is one of the most fundamental parameters in liquid silicone rubber injection molding. While many manufacturers focus heavily on injection pressure, metering accuracy, and mold design, the selection of proper clamp force directly influences product quality, mold lifespan, process stability, and overall production efficiency.
06/03/2026
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![How Closed-Loop Injection Control Improves LSR Molding Stability]()
How Closed-Loop Injection Control Improves LSR Molding StabilityAdvanced manufacturing systems are now integrating digital monitoring, servo-driven motion control, and intelligent process optimization to reduce variability during molding cycles.
05/29/2026
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![Energy Consumption Optimization in Modern LSR Injection Molding Machines]()
Energy Consumption Optimization in Modern LSR Injection Molding MachinesAs manufacturing industries move toward sustainable and cost-efficient production models, energy optimization has become an increasingly important factor in liquid silicone rubber injection molding.
05/28/2026
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![LSR Injection Machine Guide: How Proper Maintenance Extends Injection Machine Lifespan]()
LSR Injection Machine Guide: How Proper Maintenance Extends Injection Machine LifespanLiquid silicone rubber injection molding machines operate under highly specialized production conditions that require long-term precision, thermal stability, and continuous mechanical reliability.
05/19/2026
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![What Are the Advantages of Integrated Horizontal Injection Molding Machines?]()
What Are the Advantages of Integrated Horizontal Injection Molding Machines?Integrated horizontal injection molding machines have become increasingly important in modern liquid silicone rubber manufacturing due to their ability to combine automation, precision, and production efficiency into a single system architecture.
05/18/2026
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![High-Precision Liquid Silicone Rubber Injection Molding: How to Achieve Micron-Level Tolerance Control]()
High-Precision Liquid Silicone Rubber Injection Molding: How to Achieve Micron-Level Tolerance ControlAs medical devices, wearable electronics, automotive sealing systems, and micro silicone components continue evolving toward miniaturization and precision manufacturing, micron-level dimensional control has become increasingly important in Liquid Silicone Rubber injection molding.
05/15/2026
The Technology Behind the Cup: Demystifying Silicone Menstrual Cup Injection Molding
What is LSR Injection Molding?
Unlike traditional thermoplastics, Liquid Silicone Rubber is a two-part platinum-cure elastomer that cures with heat. The injection molding process for LSR is a precise, automated method ideal for creating hygienic, medical-grade products like menstrual cups.
The Step-by-Step Process:
· Material Preparation & Mixing: The liquid silicone components (base and catalyst) are stored in separate, temperature-controlled tanks. They are precisely metered and mixed in a dynamic mixer just before injection, ensuring a fresh, homogenous material.
· Injection into the Mold: The mixed LSR is injected under low pressure into a heated, multi-cavity mold. The mold is engineered to the exact shape of the cup, including its stem, rim, and body details. The low pressure prevents material stress and unwanted bubbles.
· Curing (Vulcanization): Inside the heated mold (typically between 180°C - 220°C), the LSR undergoes a chemical reaction, transforming from a liquid into a solid, elastic rubber. This curing process is fast and efficient.
· De-molding and Post-Curing: Once cured, the mold opens, and the finished cups are automatically removed. They may undergo a brief secondary post-cure cycle to ensure optimal physical properties and complete any residual curing.
· Trimming & Quality Control: Any minor excess material (flash) from the mold seams is trimmed. Each cup then undergoes rigorous QC checks for dimensions, consistency, visual flaws, and material integrity.
Why This Process is Ideal for Menstrual Cups:
· Seamlessness & Smoothness: Creates a perfectly smooth, single-piece cup with no seams, ridges, or pores where bacteria could hide.
· High Precision & Consistency: Ensures every cup is identical in size, shape, and thickness, guaranteeing reliable performance.
· Material Purity: The closed, automated system minimizes human contact and contamination, crucial for medical-grade products.
· Efficiency: Allows for high-volume production of consistently high-quality products.