A traditional and mature silicone molding technology, where solid silicone raw materials are heated and vulcanized in a mold using vacuum hot pressing. It is suitable for large-volume production and offers relatively low tooling costs, making it the preferred choice for mass production.
Our core capabilities focus on pure silicone/rubber products, overmolding, plastic-to-silicone bonding, metal-to-silicone bonding, and other diverse processes. Located in Xinzhuang District, New Taipei City, our factory offers professional, one-stop OEM/ODM manufacturing services for clients throughout Taiwan.
To meet the market's high precision and quality requirements, Jun-Hsiang has introduced LSR Liquid Silicone Rubber injection molding technology. LSR technology is characterized by high precision, high automation, and excellent production efficiency.
This technology effectively addresses our clients' demands for high precision and is widely applicable to medical devices, electronic components, automotive parts, and other high-accuracy applications.
Answers to your questions about Liquid Silicone Rubber (LSR) injection molding technology and manufacturing processes.
LSR (Liquid Silicone Rubber) injection molding is an automated manufacturing process where two-part liquid silicone raw materials (Part A and Part B) are mixed precisely at a 1:1 ratio and injected into a heated mold for rapid vulcanization. It is particularly suitable for high-precision, complex-shaped medical devices, electronic components, and high-temperature resistant seals.
LSR injection molding utilizes a fully enclosed automated feeding system, eliminating risks of human contamination, with very short cycle times, micron-level precision, and minimal flash. Traditional compression molding requires manual weighing and placement of solid compound, leading to slower production cycles; it is more suitable for larger parts or projects with limited tooling budgets.
Jun-Hsiang Enterprise has over 30 years of mold development experience, achieving integrated overmolding processes such as silicone-to-aluminum, silicone-to-iron, and silicone-to-plastic bonding. Through professional surface treatment and precise mold venting design, we ensure a tight bond between the silicone and the metal/plastic substrates, preventing delamination and meeting IP68 waterproof standards.
We have introduced advanced automated production equipment and precision measurement instruments to guarantee stable production and high-standard quality assurance.
Utilizing a precision control system from leading domestic manufacturer Chuan-Lien Machinery, combined with automated metering and mixing, it is built for high-efficiency and stable injection molding of high-quality silicone rubber parts.
Equipped with an advanced vacuum system to eliminate bubble defects, ideal for large-scale production of silicone keypads, waterproof seals, O-rings, and overmolded parts.
Non-contact, high-precision 2D optical measurement, ensuring strict tolerance control for intricate features, micro-apertures, and dimensions. It serves as a core tool in our quality control.
Based on your product's operating environment, select the desired physical properties and certifications, and we will recommend the most suitable silicone or rubber material.
Dual-component automated mixing injection. Non-toxic, odorless, anti-aging, with excellent biocompatibility. Performs perfectly under high temperature, dust-proof, transparency, and medical demands.
Combines the solvent and oil resistance of fluorocarbon rubber with the wide temperature range of silicone. Typically used in automotive engine seals, fuel line gaskets, and the aerospace industry.
Specially modified silicone that chemically bonds directly to plastic (PC, PBT, PA) or metal surfaces during injection molding without primer, ideal for multi-material waterproof assemblies.
Primarily used to manufacture silicone keypads, consumer goods, and tableware seals in direct contact with food, complying with FDA and LFGB standards.
Excellent chemical, UV, and ozone resistance. Commonly used for automotive weather stripping, outdoor electrical enclosures, and vibration-damping rubber components.
Superb resistance to mineral oils, gasoline, diesel, and high tensile strength. Excellent tear and abrasion resistance, suitable for industrial O-rings, dust boots, and oil check valves.
We possess over 30 years of professional silicone and rubber manufacturing experience, backed by ISO 9001 certification to provide you with the most reliable tooling development and OEM/ODM services.
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