Top 10 Liquid silicone rubber injection China Factory Products Compare in 2024

Are you looking for the best liquid silicone rubber (LSR) manufacturers in China? With so many options available, choosing the right one can be overwhelming. In this article, we’ll compare the top LSR injection factories in China, highlighting their strengths, services, and what sets them apart. Let’s dive in and find the perfect fit for your needs.

Liquid Silicone Rubber China LSR injection molding

Product Details: Liquid Silicone Rubber (LSR) is a high-purity platinum-cured silicone with excellent fluidity, used in injection molding to produce high-volume, precise, and durable silicone rubber parts. The process involves mixing two compounds (base-forming silicone and platinum catalyst) which are then injected into a heated mold and cured. LSR is known for its low compression set, stability, and resistance to extreme temperatures. It is commonly used in various applications such as seals, electric connectors, kitchen goods, and infant products[1][2][4].

Pros:
– Provides ease of processing and high-volume production
– Ensures consistent part quality and minimal variation
– Offers excellent UV and ozone resistance, and electrical insulation
– Suitable for a wide range of applications including medical, automotive, and con…
– Minimizes flash development and reduces the need for post-molding trimming
– Environmentally friendly with minimal to no waste production
– Allows for tighter tolerances and complex part designs

Cons:
– High up-front cost of tooling, which can be costly for low-volume production
– Non-reformability and non-recyclability of thermoset parts
– Certain design restrictions and the need for precise mixing of the two liquid co…
– Extra time required for mixing the two liquid components before injection


Liquid Silicone Rubber China LSR injection molding

Liquid Silicone Rubber & LSR Injection Molding …

Product Details: Liquid Silicone Rubber (LSR) is a two-component, platinum-curable silicone elastomer. It is characterized by its flowable nature, allowing it to be pumped into a mold and cured at elevated temperatures. LSR is used in injection molding processes, enabling the production of complex part geometries with precise dimensions and fast cycle times. It is available in a broad range of durometers (3 to 80 Shore A) and can be formulated for various applications, including medical, automotive, and electrical uses.

Pros:
– High biocompatibility, suitable for medical and skin-contact applications
– Excellent chemical resistance to water, oxidation, and some chemical solutions
– Wide temperature endurance (-60°C to 250°C)
– Good mechanical properties, including high tear and tensile strength, and excell…
– Fast cycle times and fully automated flash-less and trim-free manufacturing
– Self-bonding options and compatibility with various materials
– Excellent electrical insulation and tracking resistance
– Transparency and customizable pigmentation

Cons:
– Requires specialized processing equipment due to its viscous nature and curing r…
– Higher production costs compared to some other elastomers due to the need for pl…
– Limited availability of certain grades and formulations in some regions
– May require additional additives or fillers for specific applications, which can…


Liquid Silicone Rubber & LSR Injection Molding ...

Rubber Molding | Rubber Extrusion | Liquid Silicone Extrusion …

Product Details: Rubber extrusion and molding involve various processes to create rubber parts. Rubber extrusion produces two-dimensional parts with continuous lengths by pushing unvulcanized rubber through a die, shaping it into the desired profile. Rubber molding, including compression, injection, and transfer molding, creates three-dimensional shapes using heat and pressure. Common materials include Buna, Nitrile, Neoprene, Viton, EPDM, Silicone, and Hypalon. Applications range from sealing, noise control, and vibration to decorative trim and industrial components like gaskets, seals, and tubing.

Pros:
– High efficiency and speed, especially in injection molding
– Ability to produce complex shapes and profiles with tight tolerances
– Versatility in material choices to meet specific application requirements
– Continuous production in extrusion minimizes assembly needs and enhances structu…
– Customization options for various industries including automotive, aerospace, an…

Cons:
– Compression molding can be slower and less efficient for high-volume production
– Transfer molding may require additional steps for bonding rubber to metal compon…
– Specific temperature and pressure requirements can limit the types of rubber mat…
– Post-processing steps like cutting, drilling, and vulcanization may add to the o…


Rubber Molding | Rubber Extrusion | Liquid Silicone Extrusion ...

Silicone Injection Molding from China manufacturer

Product Details: Liquid Silicone Rubber (LSR) injection molding is a thermoset process used to produce high volumes of pliable, durable, and precise silicone rubber parts. The process involves creating a molding tool using CNC machining, which must be high-temperature resistant. The tool is then loaded into an LSR-specific injection molding press. The LSR material, consisting of two compounds (base-forming silicone and platinum catalyst), is mixed and injected into the mold cavity under high pressure and heat-cured to form the final part. LSR parts offer great UV and ozone resistance, electrical insulation, and are suitable for various industries including medical, lighting, and automotive.

Pros:
– High-volume production capability with consistent part quality
– Minimal waste production and reduced need for post-molding trimming
– Excellent thermal, mechanical, and chemical resistance
– Suitable for intricate part design features and critical use applications
– Automated process reduces human error and contamination risk
– Fast production times, with parts available in 15 days or less

Cons:
– High capital investment required for production tooling
– The curing process is irreversible, meaning parts cannot be melted and reused
– Tighter tolerances may increase the cost of tooling due to additional sampling a…
– Mold design and production can be the lengthiest and most costly step in the pro…


Silicone Injection Molding from China manufacturer

Liquid Silicone Rubber Injection Molding | Quotes in 24 Hours


Liquid Silicone Rubber Injection Molding | Quotes in 24 Hours

Liquid Injection Molding of Liquid Silicone Rubber from …

Product Details: Liquid Silicone Rubber (LSR) injection molding is a thermoset process used to produce high volumes of pliable, durable, and precise silicone rubber parts. The process involves mixing two compounds (base-forming silicone and a platinum catalyst) which are then injected into a heated mold and cured through heat. The resulting parts are flexible and have excellent elongation, tear and tensile strength, and a hardness range from 10 to 80 durometer shore A. LSR is suitable for various applications including medical, lighting, automotive, and consumer products such as kitchenware, wearable technology, and infant products.

Pros:
– High-volume production capability with consistent part quality and minimal varia…
– Low chance of contamination due to automated and hands-free manufacturing operat…
– Excellent UV and ozone resistance, and outstanding electrical insulation
– Ability to flow into very thin cross-sections, tight radii, and thick/thin featu…
– Fast cure cycles, typically between 30 seconds to 2 minutes, reducing labor and…
– Tight control over dimensional tolerances, meeting precision standards like ARPM…

Cons:
– The production tooling can be the lengthiest step and requires the largest capit…
– Higher initial tooling costs, although these can be offset by longer-term effici…
– Design complexities such as undercuts can increase the complexity and cost of th…


Liquid Injection Molding of Liquid Silicone Rubber from ...

Top 10 Liquid Silicone Rubber Manufacturers and Suppliers …

Product Details: Hongju specializes in manufacturing Liquid Silicone Rubber (LSR) products using advanced injection molding technology. They produce a variety of rubber products such as intricate medical components, keypads, O-ring seals, gaskets, rubber feet, and rubber grommets. The company handles minimum to medium quantity orders, offers rapid prototyping, and supports custom designs. LSR is versatile, flexible, and resistant to chemical reactions, making it ideal for machine parts, household appliances, and medical equipment. The injection molding process allows for the production of highly complex designs with minimal waste and high repeatability.

Pros:
– Capability of producing highly complex and custom designs
– Short production lead times and delivery
– 24/7 customer support by expert engineers
– Rapid prototyping and handling of complex designs
– Multiple CAD formats support
– Round the clock production
– ISO 9001:2015 certified
– Competitive market rates
– No waste (minimum flash)
– Higher quantity at affordable rates

Cons:
– No specific cons mentioned, but the complexity of designs might require detailed…


Top 10 Liquid Silicone Rubber Manufacturers and Suppliers ...

Xiamen Better Silicone Rubber Co., Ltd – Umbrella Valve


Xiamen Better Silicone Rubber Co., Ltd - Umbrella Valve

Liquid Silicone Rubber Injection Molding Machine


Liquid Silicone Rubber Injection Molding Machine

LSR Silicone Injection Molding Machine Manufacturer in China

Product Details: The silicone injection molding machines, such as those described by Guanxin Machinery, typically feature a clamping unit with high clamping force (e.g., 210 tons), a hydraulic system with variable piston pumps, and an injection unit with screw and barrel sets. Key specifications include injection capacity (e.g., 374-558 cm³), injection pressure (e.g., 221 MPa), and screw diameter (e.g., 45-55 mm). The machines also include advanced control systems like Mirle main board controllers and servo motor drivers. Additional features include Yuken directional and proportional valves, ceramic heater bands, and a no-welding pipe system to prevent oil leaks[3][4].

Pros:
– High clamping force and injection pressure for efficient production
– Advanced hydraulic and control systems for precision and reliability
– No-welding pipe system to prevent oil leaks and ensure durability
– Energy-saving features with up to 5% energy reduction
– CE standard compliance and 3-year guarantee

Cons:
– High initial investment cost (e.g., USD20,200 ~ 23,500 for a 200-ton machine)
– Complexity in maintenance due to the large number of components
– Potential for higher operational costs if not optimized for energy efficiency
– Space requirements are significant due to the machine’s large dimensions


LSR Silicone Injection Molding Machine Manufacturer in China

Comparison Table

Company Product Details Pros Cons Website
Liquid Silicone Rubber China LSR injection molding Liquid Silicone Rubber (LSR) is a high-purity platinum-cured silicone with excellent fluidity, used in injection molding to produce high-volume, preci… – Provides ease of processing and high-volume production – Ensures consistent part quality and minimal variation – Offers excellent UV and ozone resis… – High up-front cost of tooling, which can be costly for low-volume production – Non-reformability and non-recyclability of thermoset parts – Certain… qmolding.com
Liquid Silicone Rubber & LSR Injection Molding … Liquid Silicone Rubber (LSR) is a two-component, platinum-curable silicone elastomer. It is characterized by its flowable nature, allowing it to be pu… – High biocompatibility, suitable for medical and skin-contact applications – Excellent chemical resistance to water, oxidation, and some chemical sol… – Requires specialized processing equipment due to its viscous nature and curing r… – Higher production costs compared to some other elastomers due… www.better-silicone.com
Rubber Molding Rubber Extrusion Liquid Silicone Extrusion … Rubber extrusion and molding involve various processes to create rubber parts. Rubber extrusion produces two-dimensional parts with continuous lengths… – High efficiency and speed, especially in injection molding – Ability to produce complex shapes and profiles with tight tolerances – Versatility in m…
Silicone Injection Molding from China manufacturer Liquid Silicone Rubber (LSR) injection molding is a thermoset process used to produce high volumes of pliable, durable, and precise silicone rubber pa… – High-volume production capability with consistent part quality – Minimal waste production and reduced need for post-molding trimming – Excellent the… – High capital investment required for production tooling – The curing process is irreversible, meaning parts cannot be melted and reused – Tighter to… www.lsr-molding.com
Liquid Silicone Rubber Injection Molding Quotes in 24 Hours
Liquid Injection Molding of Liquid Silicone Rubber from … Liquid Silicone Rubber (LSR) injection molding is a thermoset process used to produce high volumes of pliable, durable, and precise silicone rubber pa… – High-volume production capability with consistent part quality and minimal varia… – Low chance of contamination due to automated and hands-free ma… – The production tooling can be the lengthiest step and requires the largest capit… – Higher initial tooling costs, although these can be offset by… www.rubber-keypad.com
Top 10 Liquid Silicone Rubber Manufacturers and Suppliers … Hongju specializes in manufacturing Liquid Silicone Rubber (LSR) products using advanced injection molding technology. They produce a variety of rubbe… – Capability of producing highly complex and custom designs – Short production lead times and delivery – 24/7 customer support by expert engineers – R… – No specific cons mentioned, but the complexity of designs might require detailed… hongjusilicone.com
Xiamen Better Silicone Rubber Co., Ltd – Umbrella Valve www.silicongasket.com
Liquid Silicone Rubber Injection Molding Machine global.hacen-machinery.com
LSR Silicone Injection Molding Machine Manufacturer in China The silicone injection molding machines, such as those described by Guanxin Machinery, typically feature a clamping unit with high clamping force (e.g… – High clamping force and injection pressure for efficient production – Advanced hydraulic and control systems for precision and reliability – No-weld… – High initial investment cost (e.g., USD20,200 ~ 23,500 for a 200-ton machine) – Complexity in maintenance due to the large number of components – Po… guanxin-machinery.com

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Liquid Silicone Rubber Injection Factories in China

What types of products are typically manufactured by LSR injection factories in China?

LSR injection factories in China produce a wide range of products, including medical devices like implants and surgical instruments, food-grade items such as baby nipples and bottles, and industrial components like gaskets and seals. These factories also manufacture products for the electronics, aerospace, and baby care industries, among others.

What are the key advantages of LSR injection molding?

The key advantages of LSR injection molding include high precision, batch stability, process repeatability, no waste, short cycle times, and minimal burrs. Additionally, LSR products offer high tear resistance, are suitable for body implants, and have excellent thermal stability and water resistance.

How do LSR injection factories ensure quality and compliance?

LSR injection factories in China ensure quality and compliance by adhering to international standards such as FDA, UL, and RoHS certifications. They also conduct rigorous quality assurance tests and use high-quality raw materials to ensure their products meet the required standards. Many factories have advanced manufacturing technologies and experienced R&D teams to support their quality control processes.

What are the different types of LSR injection molding machines used in these factories?

LSR injection factories use both horizontal and vertical LSR molding machines. Horizontal machines are ideal for automatic production and ensure steady and equal clamping force, while vertical machines are more space-efficient and suitable for manual pick-and-place operations, such as insert molding.

How do these factories handle customization and specific customer requirements?

LSR injection factories in China are highly capable of customization. They work closely with customers to design and supply silicone gel machine equipment according to specific requirements. These factories can adjust various properties of the silicone rubber, such as hardness, viscosity, curing speed, and color, to meet the needs of different projects and industries. They also provide comprehensive solutions, including whole-set projects and technical support.

Top 10 Liquid silicone rubber injection China Factory Products Compare in 2024

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