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  • Company Profile

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    Exceeding to the Remarkable

    Tonjin Engineering was established in 2005 in Dajia, Taichung. We keep on growing with our solid service and techniques. Constant development of innovative ideas and technology gives us the solid manufacture techniques and design capability. The stringent quality control and rock-hard technical service make Tonjin the best partner for you and you company to grow with.

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    Tonjin offers 360 degree all-round OEM/ODM service

    Tonjin offers 360-degree all-round OEM/ODM service, including design, labeling, manufacture, packaging, inspection and delivery. We always have our attention on our design and communication capability.

  • R&D Capability

    TonJin has the stable and strong technical foundation on which we provide our design,manufacture expertise and improve the quality of service offered.

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    Form technical development to product design and final customization,TonJin always provides our customers with the state-of-the-art technology.

    Our technical energy and experience help us improve quality for OEM and product design capability for ODM. Our attention on accurate technical efficiency allows the smooth delivery of product service.

    In TonJin, we dedicate ourselves in the seamless cooperation between R&D team and manufacture section to bring different technical experience and skills tightly together for close communication and development.

    We aim to provide the best product service and technical cooperation for our customers.

    The integration of R&D, design and development framework we have developed over the years results in smooth and flowing service quality, and the combination of the framework and the technical development has yielded the maximum performance.

    That is why we are able to provided high-quality ODM/OEM service.

  • OEM/ODM Service​

    Metal welding is what TonJin is specialized in. We work hard to improve metal processing techniques and provide careful planning for product design and quality.

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    What we can do for you ?

    TonJin provides high-quality metal frame design and welding techniques.

    TonJin provides professional design of metalwork and welding. The art of welding is what we are good at and allows us the capability to perform metal welding and design.

    Tonjin is proud of being a metal joinng expert and we are dedicated in metel welding service and design. Our strong metal welding background allows us to provide planning service that meets your demand. Tonjin is specialized in TIG welding, braze welding and LUG.

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    TIG welding features faster welding rate, less warping and no welding residue. It offers the best appearance and quality that any welding technique can offer. In high-temperature welding, the welding zone is protected from air and the contamination of impurity, and therefore it is the perfect selection for the assembly of precision machinery. This welding technique is good for solving common problems often seen in welding between different metals and metals that are difficult to weld. TIG welding offers steady quality, and features the least weight addition after processing and the ease to work with.

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    Braze welding is commonly used in the joining of ferrous metals or different metals. It allows for high-strength, air-tight seamless joining of different materials, saving materials used and good for pieces that are hard to work with. It gives a smooth look that is free from oxidation and distortion. The fast processing speed allows higher production capability and shorter delivery schedule, and thus less production costs. Complicated pieces can be welded at multiple spot in one go. The air-tightness and tensile strength of the welded parts are better than those generated from ordinary welding or CO2 welding. The post-welding carbon penetration, thermal treatment or electroplating will not affect the mechanical properties. Braze welding achieves fine and delicate look, allowing better flexibility than TIG welding.

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    LUG is a tube joining technique based on brazes welding. It is metal processing technique that allows fine and simple shapes, delicate coloration and visual pleasure. LUG displays unique craftsmanship by achieving delicate and exquisite looks. The structural flexibility still remains after LUG processing as opposed to other welding techniques.

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    In addition to good techniques, TonJin introduces tubes of the best quality, such as Cr-Mo 4130 steel tubes from Taiwan, Aluminum 6061/7005, stainless steel, and tubes from Reynolds and stainless steel from Italy. We offer good-quality materials and construction skills to ensure the best product quality for you. The products of TonJin are certified for European safety and test criteria and pressure tests that ensure the robust structure and complete quality. When completed, products are put through accurate measurement of angles and rigid dimensions. The rigorous inspection criteria help maintain the quality of service we provide.

  • Design and communication ability for OEM/ODM service

    We know your needs!

    TonJin offers services ranging from design, labeling, manufacture, packaging, inspection to delivery. Supported by the powerful R&D team of TonJin, we aim to provide our customers with the best service available. We always pay special attention on the ability of design and communication and the provision of carefully configured processing solutions that meet customers' demands. TonJin is the helping hand for your business development. We advance with you, and will help you improve your business profits.