Are you looking for the best rubber injection molding factories in China? With so many options available, it can be overwhelming to choose the right one. In this article, we’ll compare the top rubber injection molding companies in China, highlighting their strengths, specialties, and what sets them apart. Let’s dive in and find the perfect fit for your needs.

Rubber Molding | Rubber Extrusion | Liquid Silicone Extrusion …

Product Details: Rubber extrusions are products manufactured by forcing unvulcanized rubber through a die to achieve a specific cross-sectional shape. These products can range from simple rubber tubing to complex extrusions, including seals, vibration reducers, and decorative trim. They are made from various rubber compounds such as EPDM, SBR, Silicone, Nitrile, and Neoprene, each suited for different applications and industries like automotive, construction, and marine[1][2][5].

Pros:
– Rubber extrusions can be produced in continuous lengths, minimizing the need for…
– The process allows for the creation of highly complex cross-sections and shapes,…
– Rubber extrusions are effective for sealing, noise control, vibration reduction,…
– Customization is possible to fit specific application needs, including various m…
– The extrusion process is relatively efficient and can produce high-quality parts…

Cons:
– The initial setup and tooling for custom dies can be costly and time-consuming[2…
– Limited to producing two-dimensional parts with continuous lengths, which may no…
– Dependent on the correct selection of rubber compounds to meet the specific requ…

Top 10 Rubber Injection Molding Companies and Suppliers in …

Product Details: Hongju specializes in Liquid Silicone Rubber (LSR) Injection Molding, producing high-precision silicone rubber products. The services include manufacturing of intricate medical components, keypads, O-ring seals, gaskets, rubber feet, and rubber grommets. They offer rapid prototyping, handling of custom designs, and production of minimum to medium quantity orders with short lead times and competitive market rates. The LSR material 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 complex designs with minimal waste and high repeatability[1][2][4].

Pros:
– High-precision silicone rubber products
– Rapid prototyping and handling of custom designs
– Short production lead times and competitive market rates
– ISO 9001:2015 certified and compliance with CE and FDA standards
– Minimal waste and high repeatability in production
– 24/7 customer support by expert engineers
– Support for multiple CAD formats and round-the-clock production

Cons:
– Potential additional costs for modifications to production molds
– Limited geographical flexibility for factory inspections due to epidemic restric…
– Production time can vary based on order quantity and complexity

Rubber Injection Molding Services

Product Details: Richfields Corporation offers rubber injection molding services, specializing in materials such as TPE (Thermoplastic Elastomers) and TPV (Thermoplastic Vulcanizates). They provide custom and standard molded rubber parts for various applications, including consumer, FDA, and industrial uses. The company has extensive experience in working with customers to create rubber injection molds and ensures efficient production costs through flexible production processes in China.

Pros:
– Expertise in TPE and TPV materials
– Production flexibility and cost efficiency
– Comprehensive support from engineering and production teams
– Ability to supply parts for diverse applications including consumer, FDA, and in…

Cons:
– No specific cons mentioned on the webpage
– Dependence on production in China may pose logistical challenges for some client…

Custom Rubber Mould Manufacturer Injection …

Product Details: Melon Rubber is a manufacturer specializing in custom molded rubber and liquid silicone rubber (LSR) injection molds. They offer a range of services including design and engineering, prototype development, mass production, and post-production services such as deburring, polishing, and assembly. Their products include gaskets, O-rings, seals, connectors, valves, bumpers, tubes, housings, plugs, knobs, and sleeves. They utilize various molding techniques like LSR injection molding, high consistency rubber (HCR) molding, and overmolding. The company emphasizes precision engineering to create molds that match exact client specifications and ensures high-quality products through rigorous quality control measures[2][3][5].

Pros:
– High-quality rubber silicone components tailored to specific needs
– Quick turnaround times, with quotes in 24 hours and finished parts within 5-7 da…
– Free Design for Manufacturability (DFM) analysis and experienced manufacturing t…
– Competitive factory prices without compromising on quality
– ISO9001 certified with thorough quality control from material inspection to fina…
– Value-added services such as bar coding, assembly, oil spray, UV coating, and re…
– Advanced CNC machining and state-of-the-art tooling
– Low Minimum Order Quantity (MOQ) requirements and 24/7 after-sales support

Cons:
– Lead times can be longer during peak seasons, ranging from 3-6 months
– Limited information on specific material limitations or potential drawbacks of c…

Custom Rubber Injection Molding Service

Product Details: LSR injection molding involves creating custom silicone parts using a high-temperature tool made by CNC machining. The process uses an LSR-specific injection molding press to ensure accurate control of shot size. Materials include standard silicones and specific grades for various applications. LSR parts are permanent and cannot be melted again once molded. The service includes options for single, multi-cavity, and family molds with various press tonnages and side actions. Tolerances are typically +/- 0.005″ when machining the mold and +/- 0.002″ per inch for shrink rate. Inspection and certification options include FAI, PPAP, and various ISO standards[1][3].

Pros:
– Offers great UV and ozone resistance and outstanding electrical insulation
– Suitable for a range of durometers (10 to 80 Shore A)
– Ideal for industries such as medical, lighting, and automotive
– Customizable materials and finishes
– High precision and repeatability in part production
– Various inspection and certification options available

Cons:
– Higher tooling costs due to the need for high-temperature tools
– Tighter tolerances may increase the cost of tooling
– LSR is a thermosetting polymer, so parts cannot be melted and reused

injection molding rubber in china

Product Details: Injection molding rubber in China involves the production of parts from various rubber materials, including natural rubber and synthetic thermoplastic rubber. Natural rubber is derived from latex trees, primarily in countries like Thailand and Vietnam, and undergoes a process of collection, coagulation, and drying. Synthetic thermoplastic rubber is used in injection molding processes similar to those for thermoplastic and thermosetting plastics. Silicon rubber is utilized in liquid injection molding (LIM) for producing precise medical and automotive parts. The process involves feeding materials into a heated tube, mixing, and then forcing them into a mold cavity where they cool and harden.

The molds are typically made from steel or aluminum[2].

Pros:
– Allows for the production of precise and identical parts, which is crucial for m…
– Used in various industries, including medical, automotive, and mechanical tools,…
– Enables the creation of complex parts with high accuracy, which is essential for…
– Supports rapid prototyping and mass production, making it versatile for differen…

Cons:
– The process can be complex and requires specific materials and equipment, which…
– The use of natural rubber involves a labor-intensive collection and processing m…
– The need for precise mold design and tooling can add to the overall cost and tim…

LSR Injection Moulding from China manufacturer

Product Details: Liquid Silicone Rubber (LSR) injection molding involves mixing a two-component compound, which is then heat-cured in a mold with a platinum catalyst. The process uses high-temperature tools fabricated via CNC machining. LSR is a thermosetting material, meaning it is cured by heat to cross-link polymer chains. It is popular in medical, automotive, and other industries due to its good physical properties, including high temperature resistance, UV and ozone resistance, and electrical insulation. LSR parts can range from 10 to 80 durometer Shore A and are known for their flexibility and durability.

Pros:
– High temperature resistance (-110°C to +350°C)
– UV and ozone resistance
– Electrical insulation
– Flexible and durable
– Suitable for medical, automotive, and various industrial applications
– Low chance of contamination due to automated processes
– Quick cycle time and minimal material waste

Cons:
– Requires high-temperature tooling which can be expensive
– Tooling process can be lengthy and requires significant capital investment
– Limited to thermosetting properties, meaning the molded state is permanent and c…
– May require additional equipment for parts handling and secondary processes

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, where it is heat-cured to form the final part. LSR parts offer great UV and ozone resistance, electrical insulation, and are suitable for various applications including medical, lighting,

and automotive industries.

Pros:
– High-volume production capability with consistent part quality
– Environmentally friendly with minimal to no waste production
– Excellent thermal, mechanical, and chemical resistance
– Suitable for intricate part designs and demanding applications
– Automated processing reduces human error and increases precision
– Low chance of contamination due to automated handling

Cons:
– The production tooling can be the lengthiest and most capital-intensive step
– Requires specialized equipment and high-temperature molds
– Tighter tolerances may increase the cost of tooling due to additional sampling a…

Recommended 15 China Injection Molding Companies

Product Details: SeaskyMedical is an ISO-certified medical injection molding company based in Shenzhen, Guangdong Province, China. The company was founded in 1999 and has over 10 years of experience in the medical sector. They provide one-stop injection molding solutions including mold design, mold manufacturing, material selection, injection molding, and product development. SeaskyMedical operates within an ISO 8 certified cleanroom environment and uses state-of-the-art injection molding machines to ensure the quality and precision of their medical injection molded products. They specialize in producing medical-grade plastics and offer services such as micro-molding, overmolding, and insert molding.

Pros:
– ISO-certified with ISO 13485:2016 and ISO 8 cleanroom certifications, ensuring h…
– Extensive expertise in the medical sector with over a decade of experience.
– Comprehensive services including product design, mold design and manufacturing,…
– State-of-the-art machinery and skilled team for optimal time and cost management…
– Ability to meet stringent cleanliness criteria and tight tolerances required in…
– Customization tailored to each client’s specific design, molding method, and app…

Cons:
– No information provided on minimum order quantities or specific revenue details.
– Limited geographical presence, primarily based in Shenzhen, China.

Plastic Injection Molding Company & Mold Maker in China

Product Details: Eco Molding Co., Limited specializes in providing high-precision plastic injection molded components and assemblies. They leverage the advantages of China’s low-cost plastic injection molds while ensuring quality and timely delivery. The company offers plastic injection molding services for various industries, including automotive, home appliances, electronics, and general industrial OEM applications. Their factory, spanning over 2000 square meters, has more than 100 employees and produces 40-50 plastic injection molds per month. They use modern injection molding machines and emphasize strict quality control throughout the production process.

Pros:
– Original factory price with transparent costs, reducing administrative expenses…
– ISO9001-2008 certification ensuring high-quality standards.
– One-stop service for small and medium-sized companies, including in-house printi…
– Experienced sales managers in engineering to handle client needs effectively.
– Capability to produce high-quality plastic products efficiently using modern equ…

Cons:
– Resin prices in China can be 50%-100% higher, potentially increasing the overall…
– Dependence on global resin prices and supply chains, which can be volatile.

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Rubber Injection Mould Factories in China

What certifications should I look for in a rubber injection mould factory in China?

When selecting a rubber injection mould factory in China, it’s crucial to look for certifications such as ISO 9001 for quality management, ISO 14001 for environmental management, and ISO 45001 for occupational health and safety. These certifications ensure that the factory adheres to international standards, guaranteeing quality and safety in their products and processes.

How do I ensure the quality of the rubber products manufactured in China?

To ensure the quality of rubber products, you should check if the factory has a robust quality control process in place. This includes regular inspections, use of high-quality raw materials, and adherence to strict manufacturing standards. Additionally, look for factories that provide weekly updates on orders and have a responsive customer support system.

What kind of expertise and experience should I expect from a reputable rubber injection mould factory?

A reputable rubber injection mould factory in China should have a team with extensive experience in rubber engineering and manufacturing. They should have a history of working with various materials and producing a wide range of products, such as seals, gaskets, and other rubber components. The factory should also have a strong R&D team to continuously improve their processes and products.

Can Chinese rubber injection mould factories handle complex and customized orders?

Yes, many Chinese rubber injection mould factories are capable of handling complex and customized orders. They often have advanced equipment and technology, such as CAD/CAE/CAM systems, which enable them to design and manufacture intricate molds and products. Additionally, they may offer one-stop services including mold design, manufacturing, and post-processing treatments to meet specific customer needs.

How do I communicate effectively with a rubber injection mould factory in China if there is a language barrier?

Effective communication is key when working with a factory in China. Look for factories that have English-speaking staff, especially in their customer support and sales teams. This will help in smooth communication and ensure that your requirements are understood and met. Some factories also provide multi-step approaches to product design, approval, and production, which can help in clarifying any misunderstandings.