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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![Vacuum-Assisted Injection for Liquid Silicone: What It Actually Fixes, and Which Products Justify the Added Cost]()
Vacuum-Assisted Injection for Liquid Silicone: What It Actually Fixes, and Which Products Justify the Added CostVacuum-assisted injection reduces micro-bubbles in liquid silicone parts, but it's not worth the added cost for every product. Here's how to decide.
08/19/2026
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![When Mold Temperature Controller and Injection Machine Fall Out of Sync: Why Parts Still Show Localized Under-Cure Even When]()
When Mold Temperature Controller and Injection Machine Fall Out of Sync: Why Parts Still Show Localized Under-Cure Even When "All Parameters Are Correct""All parameters correct" but still getting localized under-cure? Mold temperature controller and injection machine timing mismatch is a common hidden cause.
08/18/2026
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![How Much A/B Mixing Ratio Error Causes Under-Cure in Liquid Silicone — and How Equipment-Level Monitoring Can Catch It]()
How Much A/B Mixing Ratio Error Causes Under-Cure in Liquid Silicone — and How Equipment-Level Monitoring Can Catch ItSmall A/B mixing ratio errors in liquid silicone can cause under-cured parts without visible warning. Learn the tolerance thresholds and equipment monitoring methods.
08/15/2026
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![Injection Pressure / Servo Pressure Sensor Drift: How Often Should It Be Calibrated?]()
Injection Pressure / Servo Pressure Sensor Drift: How Often Should It Be Calibrated?Injection pressure and servo sensor drift can silently degrade LSR part quality. Learn the warning signs and a practical calibration schedule.
08/13/2026
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![How to Verify Whether a Supplier's]()
How to Verify Whether a Supplier's "Parts Per Hour" Claim Includes Color or Mold Changeover TimeWhen comparing liquid silicone rubber (LSR) injection molding machines, almost every supplier quote includes a headline number: parts per hour, or cycles per hour. It looks like the easiest number to compare — until you realize it rarely means the same thing from one supplier to the next.
08/10/2026
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Common Failure Modes in In-Mold Assembly (IMA) on Double-Color and Double-Material LSR Machines
In-mold assembly — molding a silicone component directly onto or around a second material within a single cycle — is one of the strongest arguments for double-color and double-material LSR machines. It eliminates a secondary bonding or assembly step, reduces labor, and improves consistency versus post-mold assembly. On paper, it sounds like a straightforward efficiency gain.
08/07/2026
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Cold Runner Clogging in LSR Injection Molding: A Practical Troubleshooting Guide
Cold runner systems are one of the main reasons manufacturers choose liquid silicone rubber (LSR) injection molding over conventional runner designs — no gate vestige, no flash to trim, and lower material waste. But when a cold runner starts to clog, that advantage disappears fast: production stops, scrap rates climb, and every hour of downtime costs real money.
08/04/2026
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![Pure Electric Servo Feeding System vs. Traditional Pneumatic Feeding: Which One Actually Saves You Money?]()
Pure Electric Servo Feeding System vs. Traditional Pneumatic Feeding: Which One Actually Saves You Money?If you run an LSR (Liquid Silicone Rubber) injection molding line, the feeding system is easy to overlook — until it starts costing you scrap rate, downtime, and inconsistent shot weights. Two technologies dominate the market today: pneumatic (air-driven) feeding systems and pure electric servo feeding systems. Here's an honest, practical comparison to help you decide which fits your production line.
07/31/2026
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![How to Choose an LSR OEM Manufacturing Partner: A Buyer's Checklist]()
How to Choose an LSR OEM Manufacturing Partner: A Buyer's ChecklistOutsourcing liquid silicone rubber production is as much a relationship decision as a technical one. A supplier can look strong on paper — certificates, equipment lists, a polished website — and still fall short once your product hits real production volume. Here's a practical checklist for evaluating an LSR OEM partner before you commit tooling and inventory to them.
07/29/2026
Liquid Silicone Rubber Injection Molding--Design Considerations
How does the liqiud silicone rubber injection molding process when making silicone parts ? The first step in design is typically material choice; like thermoplastics, the particular grade and manufacturer of LSR have a great impact on final part design.Once a material is chosen for final product performance, many other decisions must be made regarding part shape, gating,material usage, and most importantly cost.The best method for determining these is to ask a series of questions:
How will the product be molded?
Part geometries can have a great deal of impact depending upon the type of molding used. Some work well with automation typical for horizontal LSR molding, while others work better for the manual operation of vertical machine molding. Also, the complexity of the geometry plays a role in governing the size of the mold and thus the size of the molding machine.
How will the part be demolded?
Design for ease of demolding is just as important as design for molding. Silicone has a high green tear strength: meaning that very large undercuts may be designed into a product and the parts can be stretched over them during demolding without permanent deformation. This, however, does not mean that any geometry may be easily removed from the mold. Silicone’s tendency to adhere to the mold steel after molding coupled with
its natural tackiness can make it quite difficult to remove thick walled highly undercut parts. Undercuts and wall thicknesses should be
carefully chosen during the design phase.
How should the mold be heated?
Consistent heating of LSR molds is crucial to producing parts of proper geometry both throughout a single run and between runs.
Options for heating methods include resistance or induction. Both styles may be placed inside the plates of the mold or inside a universal
base which heats the entire mold from the outside only. More precise control is given by placing heaters directly in the mold plates, so
that the thermocouples tied to the PID controller can more effectively change the heater on/off timing. Choice of heating type
depends largely on budget and geometric considerations, since heating the mold directly increases costs and heaters must be placed so
that they avoid mold cavities, cores, and slide actions.