Are you looking for the best injection moulded rubber 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 players in the industry, highlighting their strengths, specialties, and what sets them apart. Let’s dive in and find the perfect fit for your needs.

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 company manufactures a variety of products including intricate medical components, keypads, O-ring seals, gaskets, rubber feet, and rubber grommets. They offer services such as production of minimum to medium quantity orders, rapid prototyping, and handling custom designs. The LSR injection molding process allows for the production of highly complex and custom designs with minimal waste and high repeatability. The capabilities include producing parts up to 12 in. x 8 in. x 4 in. (304.88mm x 203.2mm x 101.6mm) in size and a maximum depth of

2 in. (50.88 mm) from parting lines[1].

Pros:
– High-precision and complex design capabilities
– Minimal waste due to the injection molding process
– High repeatability and consistency in production
– Short production lead times and competitive market rates
– 24/7 customer support by expert engineers
– Rapid prototyping and handling of custom designs
– ISO 9001:2015 certified and compliance with CE and FDA standards
– Environmentally friendly materials and processes

Cons:
– No specific cons mentioned, but the complexity of designs might require detailed…
– Production time can vary based on the quantity of orders and the complexity of t…

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. The process involves introducing rubber into a hopper, guiding it onto a conveyor, and using a rotating screw to apply pressure and heat, propelling the rubber through the die. The resulting extruded rubber can be cut to length or supplied in continuous reels. Common products include seals, vibration reducers, door and window seals, and various profiles for sealing, noise control, and decorative purposes[1][3][5].

Pros:
– Allows for the creation of complex shapes and profiles with high precision and c…
– Efficient process that minimizes the need for extra assembly and eliminates weak…
– Can produce parts with continuous lengths, reducing waste and improving structur…
– Versatile and can be customized to fit various applications across different ind…
– Materials can be tailored to meet specific temperature, weather, and technical s…

Cons:
– Limited to producing two-dimensional parts, which may not be suitable for all ap…
– Requires specific temperature and pressure conditions to achieve the desired sha…
– Post-processing steps such as cutting, drilling, and punching may be necessary,…

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 operates in China, offering production flexibility and cost-efficient solutions. Their engineering and production teams assist in resolving tooling and production concerns.

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

Cons:
– No specific cons mentioned on the webpage
– Potential language or cultural barriers for international clients

Custom Rubber Mould Manufacturer Injection …

Custom Rubber Injection Molding Service

Product Details: Jiangzhi offers custom rubber injection molding for both low-volume and end-use production. The process uses steel as the tooling material to ensure mold durability, with mold costs starting at $500. The service includes single or multi-cavity molds, with unlimited mold life and permanent mold storage. General tolerances are normally +/- 0.008in. (0.2mm). Various elastomers are available, including silicone, EPDM, Nitrile, Neoprene, SBR, Natural Rubber, Butyl Rubber, and Viton. Finishing options include high glossy, semi-glossy, matte, and textured finishes.

Pros:
– Durable and precise rubber components
– Variety of elastomers available
– Low mold costs starting at $500
– Unlimited mold life and permanent mold storage
– Multiple finishing options

Cons:
– General tolerances may be less precise than some other services (+/- 0.008in.)
– Limited information on lead times and production speed

injection molding rubber in china

Product Details: Injection molding rubber in China involves the production of parts from various materials, including natural rubber, synthetic thermoplastic rubber, and silicone. Natural rubber is derived from latex trees, collected through a process called tapping, and then coagulated and dried. Silicon rubber is used in liquid injection molding (LIM), where the silicon fluid is mixed with agents and heated or vulcanized. This process is crucial for creating precise rubber injection molded products used in medical parts, automotive components, and mechanical tools. The molds are made from materials like steel and aluminum, and the process ensures uniformity and precision in the produced

parts.

Pros:
– Ensures uniformity and precision in the produced parts, making them ideal for ma…
– Can produce a wide range of products, including medical equipment, automotive pa…
– Allows for the creation of complex and precise rubber parts that can be used for…
– Supports rapid prototyping and mass production efficiently.

Cons:
– The process involves multiple steps, including tapping, coagulation, and vulcani…
– Requires specialized machinery and expertise, which can increase costs.
– The use of natural rubber is dependent on the availability of latex trees and th…

Rubber Molding Product

Product Details: Manufacturing Group (China) Limited produces a variety of high-quality and affordable rubber molding products. These products are tailored for various industries, including aerospace, automotive, construction, consumer and commercial goods, food processing, general industrial, and medical. Common components include seals, gaskets, electrical enclosure weather seals, architectural and window seals, fiberoptic sheathes, outdoor electrical enclosures, scratchproof feet for appliances, oven and kitchen equipment seals, backflow preventers, bellows, elastomeric check valves, electrical connectors seals, ordinance seals, and water purification and filtration seals[5].

Pros:
– Precision and durability in custom rubber molded products
– Elimination of most labor saves time and cost and adds machine-driven consistenc…
– Machine-driven processing of the raw material allows for faster production times
– Injection molding can be more cost-effective
– Compression and Transfer molding have advantages

Cons:
– No specific cons mentioned in the source material. However, general cons of rubb…

Liquid Silicone Rubber China LSR injection molding

Product Details: Liquid Silicone Rubber (LSR) injection molding is a process to produce pliable, durable parts in high volume. It involves mixing two compounds (base-forming silicone and platinum catalyst) at room temperature, which are then pumped into a hot mold and heat-cured. LSR has a low compression set, good stability, and resistance to extreme temperatures (-60°F to 400°F). It is used for applications requiring high precision, such as seals, electric connectors, infant products, and medical devices. LSR materials range from 10 to 80 durometer Shore A and can be colored and additivated as needed.

Pros:
– High-volume production with consistent part quality
– Fast cure cycles (30 seconds to 2 minutes) compared to compression molding
– Reduced tooling costs and lead times due to fewer cavities needed
– Excellent temperature resistance and chemical stability
– Low viscosity allows for filling thin cross sections and tight radii without fla…
– Minimal waste production and environmentally friendly
– High tear and tensile strength, excellent flexibility

Cons:
– Custom colors may require additional hardware costing over $3500
– Thermosetting nature means parts cannot be melted and reused
– Specialized tooling and equipment are required for the process
– Higher initial tooling costs for high-temperature resistant molds
– Potential for increased cost with tighter tolerances and complex designs

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 cannot be melted again once cured. It is popular in medical, automotive, and other industries due to its high temperature resistance, UV and ozone resistance, and electrical insulation properties. The material is available in a range of durometers (10-80 Shore A) and can be produced with various finishes and certifications[1][2][5].

Pros:
– High temperature resistance and stability
– Excellent UV and ozone resistance
– Outstanding electrical insulation properties
– Suitable for medical, automotive, and other critical applications
– Low chance of contamination due to automated processes
– Quick cycle times and minimal material waste
– Ability to produce complex parts with tight tolerances

Cons:
– Requires high-temperature tooling which can be expensive
– Tooling process can be lengthy and requires significant capital investment
– Limited to thermosetting properties, meaning parts cannot be melted and reused
– May require additional equipment for 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 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 permanent shapes. LSR molding is suitable for various industries, including medical, lighting, and automotive, and is used for products such as gaskets, cushioning pads, and wearable technology.

Pros:
– Offers great UV and ozone resistance and outstanding electrical insulation
– High-volume production capabilities with consistent part quality
– Environmentally friendly with minimal to no waste production
– High precision and automation, reducing human error
– Versatile material properties, including thermal, mechanical, and chemical resis…
– Suitable for intricate part design features and demanding applications

Cons:
– The production tooling can be the lengthiest step and requires significant capit…
– Tighter tolerances may increase the cost of tooling due to additional sampling a…
– The process requires specialized machines and high-temperature molds

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Injection Moulded Rubber Factories in China

What are the key factors to consider when choosing a rubber injection molding company in China?

When selecting a rubber injection molding company in China, you should consider factors such as the company’s experience, expertise in rubber-related engineering, customer support, and certifications like ISO 9001 and ISO 14001. It’s also important to look at their product range, manufacturing capabilities, and whether they have worked with clients from your industry before.

What types of products can be manufactured using rubber injection molding in China?

Rubber injection molding in China can produce a wide variety of products, including seals, gaskets, bumper pads, boots, bellows, and soundproofing materials. Companies also specialize in producing custom molded rubber parts such as grommets, bushings, caps, and rubber feet, catering to industries like automotive, medical, and household appliances.

How do Chinese rubber injection molding companies ensure quality and precision?

Chinese rubber injection molding companies ensure quality and precision through various measures. These include in-house mold design and manufacturing, use of advanced machinery, and adherence to international standards like ISO 9001 and IATF 16949. Many companies also offer value-added services such as laser etching, spray painting, and provide detailed process control documentation.

What is the typical production process for rubber injection molding in Chinese factories?

The production process typically involves designing and approving the mold, followed by the injection of melted rubber into the mold. The process is known for its high production speed, high reproducibility, and high-quality finished products. Companies may also offer additional services like tooling, custom compound formulation, and finishing services to meet specific customer requirements.

How can I communicate effectively with Chinese rubber injection molding companies if I don’t speak Chinese?

Many reputable Chinese rubber injection molding companies have English-speaking support staff to facilitate communication with international clients. Additionally, companies often provide weekly updates on orders and same-day responses to questions, ensuring smooth communication and project management. Some companies also have experience working with clients from different regions, making the process more streamlined.