Are you looking for the best rubber molding factories in China to meet your specific needs? With so many options available, choosing the right one can be overwhelming. In this article, we’ll compare the top rubber molding factories in China, highlighting their unique strengths, capabilities, and the industries they serve, to help you make an informed decision. Let’s dive in and find the perfect partner for your rubber molding needs.

Top 10 Molded Rubber Products Manufacturers in China(2024)

Product Details: Hongju specializes in manufacturing custom silicone rubber products, including molded, extruded, and die-cut rubber parts. They offer a wide range of rubber compounds such as Ethylene-Propylene (EPDM), Nitrile (NBR), Silicone (VMQ), Viton® (FKM), and more. The products are used in various industries including electrical appliances, automotive, food and beverage, medical equipment, aerospace, and plumbing. Hongju provides OEM and ODM services, rapid prototyping within 3-5 work days, and low minimum order quantities. Their production cycle typically ranges from 9-15 workdays, and they hold ISO 9001, CE, and FDA certifications[2][3][5].

Pros:
– Over 20 years of design and manufacturing experience
– Wide range of rubber compounds available
– Rapid prototyping within 3-5 work days
– Low minimum order quantities
– ISO 9001, CE, and FDA certified products
– Environmentally friendly materials and processes
– Experienced and certified staff with excellent English communication

Cons:
– Production cycle can vary depending on quantity and complexity of products
– Factory inspections may be limited due to epidemic restrictions, with online ins…

Rubber Molding | Rubber Extrusion | Liquid Silicone …

Product Details: Rubber extrusion and molding services involve creating custom rubber parts using various methods such as compression molding, injection molding, and transfer molding. These processes can produce a wide range of products including seals, gaskets, tubing, and complex profiles. The materials used include Buna, Nitrile, Neoprene, Viton, EPDM, Silicone, and others. These services cater to diverse industries like industrial manufacturing, food & beverage, chemical processing, and automotive.

Pros:
– High versatility in creating complex shapes and profiles
– Efficient production processes, especially with injection molding
– Ability to meet specific requirements with various rubber compounds
– Cost-competitive solutions with short lead times
– Enhanced structural integrity and reliability of the products

Cons:
– Complexity in some molding processes, such as compression and transfer molding,…
– Higher initial costs for custom molds and dies
– Potential for material limitations depending on the application
– Need for precise temperature and pressure control in extrusion processes

Molded Rubber Products Manufacturer in China

Product Details: Hebei Shida Seal Group offers a wide range of automotive rubber seals and molded rubber products, including door seals, window seals, trunk seals, and weatherstripping seals. These products are made from various elastomeric materials such as EPDM rubber, nitrile rubber, neoprene rubber, and silicone rubber. The company provides custom rubber mixing and formulating, extrusion, compression molding, injection molding, and finishing capabilities. Products include EPDM dense and sponge rubber extrusions, dual durometer rubber profiles, and self-adhesive EPDM foam seals.

Pros:
– Superior sealing performance against environmental elements like moisture, dust,…
– Customizable designs tailored to meet specific requirements and applications.
– High-quality materials ensuring durability and longevity even under extreme cond…
– Competitive pricing making the products an affordable choice.
– Compliance with relevant regulations including RoHS and REACH.
– Advanced manufacturing methods and new material developments, such as TPV and TP…

Cons:
– The complexity of the development process, which involves multiple steps from de…
– The need for formal agreements and approvals at various stages of the developmen…

Rubber Molding Product

Product Details: Manufacturing Group (China) Limited offers rubber molding products as part of their plastic manufacturing services. They specialize in various molding processes including injection molding, blow molding, rotational molding, vacuum forming, and extrusion molding. For rubber molding, they can produce a variety of products such as custom rubber parts, gaskets, and other elastomeric components.

Pros:
– Cost-effective manufacturing
– Experienced staff with 5-10 years of professional experience
– Quality assurance and process control
– Capability to handle both high and low volume quantities
– Customer-centered and process-driven approach

Cons:
– Limited specific details on rubber molding products compared to plastic products
– No detailed technical specifications or material options provided

Custom Rubber Products | Rubber Manufacturer

Product Details: Custom rubber extrusion and molding services involve the production of various rubber parts such as profiles, tubing, gaskets, and seals. These services utilize different molding processes including compression, transfer, and injection molding. The extrusion process involves forcing rubber compounds through a die to create the desired shape. Materials used include Buna, Nitrile, Neoprene, Viton, EPDM, Silicone, and more. These products meet or exceed standards such as Mil-Spec, ASTM, SAE, ANSI, and FDA standards.

Pros:
– Ability to create various unique shapes and complex geometries
– Efficient and cost-effective production
– Lightweight, durable products
– Low waste production
– High precision and tight tolerances
– Wide range of available materials and compounds
– Meets or exceeds industry standards

Cons:
– Material choice and design complexity can affect production time and cost
– Vulcanization process may lead to shrinkage or swelling of the final product
– Specialized tooling and dies may be required for complex applications
– Lead times can vary, typically ranging from 3-5 weeks

The Most Trusted Rubber Compression Molding Supplier …

Product Details: Rubber compression molding is a process used to produce rubber parts, particularly those with low profiles such as O-rings, seals, and gaskets. It involves placing uncured rubber pre-forms into a heated mold cavity and applying high pressure to vulcanize the rubber. The process uses two-piece molds, typically consisting of a top and bottom plate, and is often used between heated platens in a press. Various elastomers like natural rubber, neoprene, silicone, and nitrile can be used in this process[2][3][5].

Pros:
– Highly precise end productions that are nearly flash-less and ready for quick de…
– Low material waste, resulting in cost savings
– Simpler, less expensive, and faster tooling
– Suitable for a variety of materials
– Easy to prototype
– Low tool and equipment costs
– Minimal lead time
– A range of available part sizes

Cons:
– Not ideal for producing parts with cored-out areas or for bonding rubber to meta…
– Labor-intensive production activity
– Cure cycle can range from 5 minutes to 15 minutes depending on the cross section…
– May require additional steps like deflashing and post-curing

Custom Rubber Injection Molding Service

Product Details: Rubber injection molding is a process that involves heating rubber to a high temperature and injecting it into a mold under high pressure. The molds are designed to allow the liquid rubber to fill the cavity quickly, cool effectively, and be ejected without damage. This process is used for producing a wide range of rubber parts, including seals, o-rings, diaphragms, and other complex geometries. The process requires precise mold design, proper material selection, and effective cooling systems to ensure consistent production quality.

Pros:
– Precision and Consistency: Allows for maintaining consistency and precision over…
– Efficiency and Cost-Effectiveness: Minimizes waste, uses automated processes, an…
– Design Flexibility and Customization: Enables the creation of complex and custom…
– High Production Volumes: Capable of producing high volumes of identical parts qu…

Cons:
– High Tooling Cost: The initial cost of creating the molds can be high, making it…
– Post-processing Required: Parts may require additional finishing steps such as t…
– Complexity in Mold Maintenance: Proper mold maintenance is essential to prevent…

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). The company provides rubber parts for various applications, including consumer, FDA, and industrial uses. Their services include production flexibility, efficient production costs, and comprehensive support from engineering and production teams to address tooling and production concerns. Richfields operates in China, ensuring diligent and responsive production processes.

Pros:
– Expertise in TPE and TPV materials
– Production flexibility and efficient production costs
– Comprehensive support from engineering and production teams
– Ability to supply rubber parts for diverse applications (consumer, FDA, industri…

Cons:
– No specific cons mentioned on the website
– Dependence on Chinese production may pose logistical or regulatory challenges fo…

Silicon Rubber Molding – Mechplus Technology

Product Details: Mechplus Technology offers a range of manufacturing services including CNC machining, sheet metal fabrication, and prototyping. They utilize 3-, 4-, and 5-axis CNC machines with advanced software for precision and speed. Their services cater to various industries such as aerospace, robotics, medical, electronics, and automotive. They provide low-volume machining, vacuum casting, and low-volume injection molding. Sheet metal fabrication includes bending, hemming, cutting, punching, seaming, and stamping using various metals like aluminum, brass, copper, and stainless steel.

Pros:
– High precision and accuracy using advanced CNC machines and software
– Wide range of materials supported including metals, alloys, plastics, and more
– Competitive pricing with no minimum order quantity for sheet metal projects
– Quick turn-around times and expedited delivery
– Expert advice and support from highly trained professionals
– Ability to handle complex projects across multiple industries

Cons:
– No specific cons mentioned in the provided sources
– Potential language barriers for non-English or Mandarin speakers, though the sta…

China mold maker and supplier

Product Details: CNF Molds and Plastics Co., Limited is a professional manufacturer specializing in the design and production of various rubber and silicone products. They offer a range of services including the creation of rubber molds, silicone molds, and the manufacturing of rubber and silicone products. The company has over 10 years of professional experience and provides OEM and ODM services, covering the entire product spectrum from concept to design and production. They cater to customers worldwide, ensuring high-quality products at reasonable prices.

Pros:
– Over 10 years of professional experience in the industry
– Ability to design and manufacture a wide range of rubber and silicone products
– Provides OEM and ODM services
– High-quality products at reasonable prices
– Global customer base

Cons:
– No specific details on material quality or certifications
– No information on lead times or delivery schedules
– Limited information on customer support services

Comparison Table

Frequently Asked Questions (FAQs)

What are the main types of rubber molding processes used in Chinese factories?

Chinese rubber molding factories primarily use three main processes: injection molding, compression molding, and transfer molding. Injection molding involves heating raw rubber and injecting it into a mold, allowing it to cool and harden. Compression molding uses a simple design where uncured rubber is pressed into a mold and heated to cure. Transfer molding is a hybrid process where rubber is loaded into a transfer pot and then pushed into the mold cavity to cure.

How long does it take to produce a mold for rubber parts in China?

The time to produce a mold for rubber parts can vary depending on the complexity and size of the mold. For simple molds without sliders, it can take around 1 to 6 weeks. However, larger molds with sliders can take up to 3 months. The design process itself typically takes about a week for simple products.

What materials are commonly used in rubber injection molding in Chinese factories?

Chinese factories use a variety of materials for rubber injection molding, including natural rubber, synthetic thermoplastic rubber, silicone, neoprene, and EPDM. Natural rubber is derived from latex trees, while synthetic rubbers are man-made. Silicone rubber is often used in liquid injection molding due to its unique properties.

How do Chinese rubber molding factories ensure the quality of their products?

Chinese rubber molding factories ensure quality through various methods. These include inspecting raw materials, controlling the production process, and conducting thorough testing and inspection of the final products. Companies like Spring Rubber and Yombo Rubber emphasize a complete quality control process to guarantee the quality of their rubber products.

What are the advantages of using rubber injection molding over other methods?

Rubber injection molding offers several advantages. It allows for precise and complex geometries, high mechanical strength, and minimal finishing requirements. The process is also rapid and cost-effective, especially for mass production. Additionally, it enables the creation of parts with excellent flexibility and durability, making it ideal for industries such as automotive and medical equipment.