FDA Approved LSR Injection Molding Machine for Heat-Resistant Silicone Pads with 120 Tons Clamping Force

Silicone pads—including trivets, baking mats, countertop protectors, and hot-pot holders—represent a high-volume, high-margin segment of the kitchenware market. These products are characterized by large planar areas (typically 20×30 cm to 40×60 cm) and relatively thin wall sections, generally in the range of 2-5 mm.

Achieving consistent quality in such thin, wide geometries demands a molding platform that delivers precise injection dynamics, uniform clamping force, and controlled demolding sequences.

• Warpage due to non-uniform cooling or insufficient packing compensation
• Flow lines and surface streaks caused by inconsistent injection speed or turbulent melt front
• Thickness variation across the pad area resulting from inadequate platen parallelism or unbalanced cavity filling
• Tearing or distortion during ejection, particularly when the part has delicate edges or embossed patterns

The Better 1200R2 vertical LSR injection molding machine is specifically designed to address these manufacturing challenges through a combination of advanced hardware and closed-loop process control.

Silicone rubber is a high-performance synthetic elastomer composed of silicone and other molecules (e.g., carbon, hydrogen, and oxygen). It is characterized by high viscosity and elasticity, as well as superior abrasion resistance, chemical stability, insulating properties, temperature resistance, and weatherability compared to organic rubber.

• Operating temperature range: -100°C to 350°C (depending on exposure duration)
• Weatherability: Resistant to wind, rain, UV radiation, and ozone
• Moisture resistance: 1% water absorption in various water temperatures
• Steam resistance: Indefinite resistance to unpressurized steam
• Chemical resistance: Resistant to oils, solvents, polar organic compounds, and diluted acids/alkalis
• Electrical insulation: 1TΩ*m-100TΩ*m across wide temperature and frequency ranges

• Solid Silicone Rubber (HTV): Long polymer chains processed by conventional methods
• Liquid Silicone Rubber (LSR): Short polymer chains requiring specialized injection molding
• Room Temperature Vulcanized (RTV) Rubber: Used for sealing, encapsulation, and potting applications

• Aerospace (space suit components)
• Automotive (gaskets and seals)
• Medical (instrument components)
• Food processing (molds)
• Electronics (adhesives and encapsulants)

• LSR: High fluidity, transparent, food/skin safe, requires specialized equipment
• Solid Silicone: Lower cost, processes with conventional equipment

Liquid Silicone Rubber (LSR) elastomers offer numerous advantages with a wide variety of available grades including general purpose, food-grade, medical, self-adhesive, low-volatile, optically clear, and specialty grades in various durometers from very firm to very soft.

LSR materials are inherently insulating with superior heat and flame resistance, making them ideal for electrical, automotive, and industrial applications. Their natural biocompatibility and hypo-allergenic properties make them excellent for skin-contact products.

LSR maintains its original shape after numerous compressions, even in extreme temperatures, distinguishing it from other elastomeric polymers. While naturally translucent white, LSR can be pigmented in various colors.

• Seals, gaskets and thin membranes
• Insulators and cushions
• Valves and bladders
• Respiratory masks
• Syringes and IV components
• Wearable health monitoring devices
• Electronic components
• Food and beverage products

Silicone rubber is a synthetic elastomer made from silicon, oxygen, hydrogen, and carbon. It offers exceptional resistance to extreme temperatures (-60°F to 450°F) while maintaining durability and flexibility. Its strong resistance to UV light, moisture, and ozone makes it suitable for outdoor and demanding applications.

These properties make silicone rubber essential for industries requiring long-lasting, high-performance solutions. Its stability in harsh conditions ensures reliability in critical applications across automotive, energy, aerospace, and other sectors.