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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![ISO 9001, CE, CCC: What These Certifications Actually Mean for Your Equipment Purchase]()
ISO 9001, CE, CCC: What These Certifications Actually Mean for Your Equipment PurchaseWhen you're evaluating LSR injection molding machines from an overseas supplier, certification logos on a company website can start to blur together. ISO 9001, CE, CCC — they all sound reassuring, but they don't all mean the same thing, and they don't all matter for the same reasons. Understanding what each certification actually covers will help you ask better questions during due diligence and avoid assuming a certificate guarantees something it doesn't.
07/17/2026
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![Turnkey LSR Injection Molding Solutions]()
Turnkey LSR Injection Molding SolutionsLaunching a liquid silicone rubber (LSR) injection molding operation involves far more than simply purchasing a machine. From material selection and mold design to automation integration and staff training, the journey from concept to full-scale production presents numerous challenges—each with the potential to delay your time-to-market and inflate your budget.
07/14/2026
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![Industrial Silicone Seals & Waterproof Parts: LSR Guide]()
Industrial Silicone Seals & Waterproof Parts: LSR GuideThis guide helps product and sourcing engineers who need reliable industrial sealing components-gaskets, O-rings, grommets, and enclosure seals-understand why LSR injection molding is the preferred process for waterproof parts at volume, and how to specify them.
07/10/2026
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![LSR Prototype to Production: Timeline & Process]()
LSR Prototype to Production: Timeline & ProcessA typical liquid silicone rubber (LSR) part moves from prototype to mass production in about 10-18 weeks, spanning design/DFM, prototyping, production mold fabrication, T1 sampling and validation, and pilot-to-ramp - with mold build and validation being the longest stages.
07/07/2026
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![LSR Injection Molding Machine Parameters Explained]()
LSR Injection Molding Machine Parameters ExplainedAn LSR injection molding machine spec sheet lists dozens of numbers, but only a handful decide whether your silicone parts cure fully, stay flash-free and cost little to run. This 2026 guide explains the parameters that matter most, so engineers and buyers can compare machines on the specs that actually affect part quality, not marketing figures.
07/02/2026
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![Automatic vs Semi-Automatic Silicone Molding Lines]()
Automatic vs Semi-Automatic Silicone Molding LinesThis guide is for production and procurement decision-makers sizing a new LSR line—comparing the two configurations across throughput, quality, cost, and payback so you can match the investment to real demand.
07/01/2026
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![LSR Cold Runner Systems: Cut Waste & Cost]()
LSR Cold Runner Systems: Cut Waste & CostLSR cold runner system is the single fastest way to cut material waste and labor out of liquid silicone rubber molding. By keeping the silicone liquid until it reaches the cavity, it eliminates cured runners and trimming entirely. This guide helps process engineers and buyers decide when a cold runner pays for itself.
06/30/2026
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![How to Select LSR Injection Molding Machine Tonnage]()
How to Select LSR Injection Molding Machine TonnageChoosing the right clamping force is the single most consequential spec decision when buying a liquid silicone rubber (LSR) injection molding machine. Pick too little and you fight flash on every shot; pick too much and you pay for energy and floor space you never use.
06/29/2026
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![Liquid Silicone Rubber Market 2026: Size, Growth & Demand Drivers]()
Liquid Silicone Rubber Market 2026: Size, Growth & Demand DriversThe global liquid silicone rubber (LSR) market is valued at roughly USD 3.4-3.8 billion in 2026 and growing about 7-9% annually, led by medical-grade demand (~44% of revenue) and rising EV production. Asia-Pacific dominates manufacturing capacity.
06/26/2026
Metering and Feeding Systems in LSR Processing: What Affects Dosing Accuracy?
In liquid silicone rubber (LSR) injection molding, the metering and feeding system plays a decisive role in determining final product quality. Because LSR is a two-component platinum-cured material that requires precise 1:1 mixing, even small deviations in dosing accuracy can lead to defects such as incomplete curing, inconsistent hardness, or dimensional instability. Modern production systems rely on high-precision metering pumps, static mixing units, and temperature-controlled feed lines to ensure stable output across long production cycles.
How Metering Accuracy Directly Impacts LSR Quality
The accuracy of dosing in LSR systems is not only a mechanical issue but also a chemical balance problem. If component A and B are not mixed in a perfect ratio, cross-linking reactions may be incomplete or excessive. This results in either soft, under-cured parts or overly brittle structures. Research in silicone processing shows that pressure stability, pump wear conditions, and material viscosity variations all influence long-term dosing consistency during continuous injection molding cycles.
Key Factors That Influence Feeding System Stability
Pump Precision and Wear Behavior
LSR metering systems typically rely on gear pumps or piston pumps. Over time, mechanical wear slightly changes volumetric output, which gradually shifts mixing ratios. High-end systems therefore integrate real-time calibration mechanisms to maintain stability during mass production.
Temperature Control in Feed Lines
ALSR viscosity is highly sensitive to temperature changes. If the material in feed lines becomes too warm, pre-curing may begin inside the system, leading to blockage or inconsistent flow resistance. Conversely, overly cold material increases viscosity and affects metering pressure accuracy.
Material Viscosity Variation Between Batches
Even within the same formulation, slight differences in filler dispersion or molecular weight distribution can affect flow behavior. This is why stable raw material sourcing is essential for maintaining long-term dosing consistency.
Industrial Optimization Strategies for Stable Dosing
Advanced LSR production systems integrate closed-loop pressure feedback and automated ratio correction algorithms. These systems continuously adjust pump displacement based on flow resistance and injection feedback, ensuring that even under fluctuating environmental conditions, the dosing ratio remains within strict tolerance limits.
FAQs
Q1: Why is LSR metering more sensitive than plastic injection molding?
A:Because LSR relies on chemical curing rather than cooling solidification, any ratio imbalance directly affects cross-linking reactions.
Q2: What is the typical mixing ratio for LSR?
A:Most systems use a 1:1 A/B component ratio, but accuracy tolerance is extremely tight, often within ±1%.
Q3: Can manual feeding systems be used?
A:Only for prototyping. Industrial production requires automated metering systems for consistency.