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Latest update: 21/05/2021 11:23:35

Yamamoto Seiki Co., Ltd.

An integrated manufacturing system that covers everything from machine cutting and welding to assembly for everything from prototyping to mass production.

In the machine processing fields, we manufacture precision parts for analytical instruments, semiconductor manufacturing machines and medical equipment. Based on the expertise that we have accumulated over many years, we handle difficult-to-machine materials such as 64Ti. In our welding business, we can accommodate SUS fine tube air sealing using laser welding, in addition to wind processing.

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Support from trial manufacturing to mass production with a consistent manufacturing system
About metal processing
Since our foundation, we have specialized in stainless steel processing and the production of parts for ingredient analysis devices. Leveraging the expertise that we have cultivated up until now to the maximum possible extent, we can accommodate everything from trial manufacturing to mass production. In recent years, we have been handling titan alloys using difficult-to-machine materials.

Processing size
Material quality
SUS316L, SUS303, SUS304, BS, AL, titanium, tungsten, kovar, and copper
About welding
We are adept at TIG welding for fine tube air sealing.
We also offer bending and winding (circle, oval) after straight piping, branching and plate welding.
By engaging in the integrated processes of processing and welding, through to bending and winding, we are able to swiftly and carefully respond to customers’ requests in terms of quality, delivery and costs.

Processing size
Outer diameters of 1.5–50ф
Material quality
Stainless steel, titanium, Inconel
Care for quality
We ensure full traceability systems by managing everything from material procurement, manufacturing, and inspection to shipment, and by means of data storage. We support customers who require high quality from their suppliers.