Precision Components

Company Profile

Shenzhen Guantai Rubber Co., Ltd. with its corporate headquarters located in Shenzhen, China, and its wholly own factories located in Shenzhen and Dongguan, is a fully integrated ODM and OEM manufacturer that delivers complete product development and production services to our business partners around the world; most of our customers are the market leader in their respective industry. Since its inception in 2006 our Factory is well proven for our excellence in product development of technically complicated products, precise production tool manufacturing, and quality production process control.

Our two factories have a combined production area exceeding 10,000 sqm. There is a blueprint for a third factory with a planned production area of 30,000 sqm. The first factory focuses on precision automobile parts and consumer electronics manufacture; and the second factory focuses on medical and pharmaceutical products with production in a strict cleanroom environment. Our inhouse toolmaking Department, Industrial Design Department and R&D Department are staffed with high caliber and experienced product design and production engineers from a full spectrum of engineering disciplines.

One of our most outstanding capabilities is the simultaneous injection of liquid silicone rubber (LSR) with two different color or two different durometer or dissimilar properties, or in combination with high performance engineering plastics. In what is commonly referred to as 2K, 2-shot, multi-component injection molding, our Factory employs technically sophisticated tool and advanced manufacturing process to offer the optimal application solutions, combining two, three or more individual materials into an integrated, fully bonded, precision component with enhanced functions and performances, distinctive shape and form which cannot be realized from conventional production technologies.

Our Factory has rich experience in secondary manufacturing processes like Overmolding, In-mold Fitting, Pad Printing, Laser Engraving and Cleanroom Assembly and Packing Facility which broaden the possible scope of innovative and creative design, and versatility of function, performance, application and packaging.

With ISO9001, ISO14001, ISO13485 and ISO16949 certification we are confident to meet and exceed the highest demands on quality, clean and well managed production of precision products for our customers.

No matter what the specific requirements are for your products our Company has the expertise and technical capabilities to serve your needs. We look forward to working with you and developing a core business partnership with your company.

Production Facilities

Tooling Department

8 sets high precision CNC machine 1 set imported high speed precision Fanuc CNC from Japan, precision tolerance is within 5μm。 7 set imported high speed YASDA CNC,specialized in high precision multi-component tooling, precision tolerance is within  2μm。 5 sets Sodick mirror polished EDM capable of producing precision molds for LSR 2K molding, thermoplastic molding and silicone compression molding. Our inhouse toolmaking Department, Industrial Design Department and R&D Department are staffed with high caliber and experienced product design and production engineers from a full spectrum of engineering disciplines. We use high precision equipment to produce precision production molds. Semi-finished products and finished products are manufactured in strict compliance with customers’ product specifications and regulatory requirements.


Raw Material

Acrylonitrile butadiene rubber (NBR) Chloroprene rubber (CR) Ethylene propylene diene rubber (EPDM) Fluoride rubber (FPM) Fluoride silicon rubber (FVMQ) Silicone Material: Shin-Etsu (Japan), Dow Corning (USA), and Wacker (Germany). Plastics Material: DuPont (USA), Bayer (Germany), and Sabic (Saudi Arabia)

Silicone Compression Molding Workshop

26 sets silicone solid-state molding machines (200 tons, 250 tons, 300 tons). 2 sets silicone material mixing machine

Injection Molding Workshop

10 sets precision automatic plastic injection molding machine including 7 sets FANUC and 3 sets Toshiba 15 sets plastic injection molding machine  Precision automatic plastic injection molding machines can produce high precision  2K and 3K molded products. Can produce auto, 3C and consumer electronics parts.

Vertical Injection Molding Workshop

Injection precision tolerance is upto 0.01g Equipped with two independent injection units and two independent mold closure systems. When molding, the disc is run 360° forward and reverse alternately; and three different colors of the same material or three different materials can be shot and bonded together in an integral part. It is capable of insert molding of hardware, magnet, cable, PCB and any electrical device.

Liquid Silicone (LSR) Injection Workshop

Class 100,000 clean room workshop for LSR molding 14 sets liquid silicone injection molding machine    25 sets injection molding machine 5 sets 2K, 3K Arburg silicone injection machine Clean Room and Air Shower Room

2 sets Arburg 2K injection machine

We have world class machinery equipment (Arburg) and GMP standards of manufacturing workshop which provide strong support of high precision and high quality medical products. Flash free tooling 2K,3K LSR Molding Insert Molding & Overmolding LSR+LSR; LSR+Plastic; LSR+Metal; LSR+Mesh & Fabric; LSR+Chipset & Cable

Advanced Assembly Production Lines

High performance clean room environment eliminating airborne microorganisms, micro-particles, chemicals and odours. All workers are required to dress clean uniform and pass through the air shower chamber before working in the clean room.  Constant temperature 23 °C ± 5 °C constant humidity 45 % -80 %. High standards, strict requirements, systematic management control. Realtime environmental monitoring system to ensure optimal environmental conditions in the workshop. Strict operations standards including cleaning, disinfection, sterilization and maintenance employed in clean room workshop

Secondary Processes

Laser Engraving Painting Pad Printing Silk Printing

Quality Inspection Equipment

Color checking machine Product dimension checking machine ROHS testing machine Pull testing machine Press testing machine UV aging testing machine RCA paper tape rubbing testing machine Alcohol rubbing testing machine

Customer Base


Organisational Structure