Silicone laryngeal mask injection mold

This high-precision silicone laryngeal mask LSR injection mold is developed for producing medical-grade silicone laryngeal mask airways and soft respiratory components with excellent consistency, airtight performance, and patient comfort. The mold utilizes advanced liquid injection molding (LIM) technology combined with a cold runner system to achieve stable molding quality, low material waste, and efficient automatic production.

The silicone laryngeal mask produced by this mold features excellent flexibility, softness, and biocompatibility, making it suitable for anesthesia, emergency airway management, and respiratory medical applications. LSR molding technology also provides fast curing cycles, stable molding precision, and reliable repeatability for large-scale medical production.

Mold Information

Mold Design & Technology

Cold Runner System for Flash-Free Production

The mold adopts an advanced cold runner system that keeps liquid silicone rubber at controlled low temperatures before entering the heated cavities. This design minimizes raw material waste, improves silicone flow stability, and helps achieve flash-free molding with consistent product quality.

Precision Medical Mold Structure

The mold is manufactured using high-precision CNC machining and EDM technology to achieve tight dimensional tolerances and smooth cavity surfaces. Precision parting line control is critical for medical airway products that require stable sealing performance and patient safety.

Multi-Cavity High Efficiency Design

The multi-cavity mold layout is optimized for automatic mass production of silicone laryngeal masks while maintaining stable dimensional consistency and balanced silicone filling. Optimized runner layouts improve production efficiency and reduce cycle times. 

Vacuum Venting Technology

Vacuum venting systems can be integrated into the mold design to remove trapped air during injection molding. This improves cavity filling quality, reduces air bubbles, and enhances the surface finish and structural consistency of medical silicone parts.

Automation Integration

The mold is compatible with automatic vertical LSR injection molding machines, robotic arms, and automatic demolding systems. Automated production helps reduce contamination risks, improve manufacturing stability, and meet medical-grade production standards. 

Durable Mold Construction

Constructed with premium mold steel and optimized heating and cooling channels, the mold delivers stable long-term production performance, reduced maintenance requirements, and extended mold service life for high-volume medical manufacturing.

FAQs

Q1: What material is used for silicone laryngeal mask production?
A: Medical-grade liquid silicone rubber (LSR) is commonly used because of its excellent biocompatibility, softness, transparency, and tear resistance.

Q2: What are the advantages of LSR injection molding for medical products?
A: LSR injection molding provides high precision, minimal flashing, fast curing cycles, stable product consistency, and suitability for automated medical production.

Q3: Why is a cold runner system important in LSR molding?
A: Cold runner systems help reduce silicone waste, improve flow stability, and achieve cleaner molding results with better dimensional consistency.

Q4: Can the mold support automatic production?
A: Yes. The mold can be integrated with robotic arms, automatic demolding systems, and automatic trimming equipment for fully automated production lines.

Q5: What products can be manufactured with this mold?
A: The mold is suitable for producing silicone laryngeal mask airways, airway cuffs, respiratory masks, and other medical-grade silicone airway management components.