will offer prototypes for free and contribute the future society.

We don’t say “No!” We will try to do something about any orders.

About Shisakuya
We will provide customers all over the world with quality of Made in Japan.

We will respond to requests together across networks of partner factories in Japan, Taiwan and Vietnam.

Order Flow
Even if you have no the drawing and only the image, but we will manufacture your order.

We can provide design, NC lathe, cutting machining, surface finishing with quick delivery.


Until you agree to it many times, we will manufacture by way of trial.

We cooperate with you without thinking about the number of trial productions and product cost and keep the quality of Made in Japan.
Please rest assured.
Even if you are wondering whether products will be satisfied once or twice and you are worried about cost and quality, we don’t refuse the order.
We will never compromise until you say OK.

We don’t say “No!”

We’ll managed. We think with partner companies including Taiwan and lead to an answer to your requests. If you want to try various materials and thickness at the same time, we will field a request. Also, we can advise when you don’t know what material to use.

We produce experimentally even if there are no drawings.

If you orally convey a image, we manufacture it even without drawings. We can do a consistent work such as designing, NC lathe, cutting, machine work and painting. We make a thing having no shape together.

We can mass-produce with same quality as the prototype.

If the quality of the prototype and the mass production product are different, there is no meaning of trial manufacture. Please tell the desired price for mass production cost. We will consider and product with partner companies including overseas so that we can respond with your desired price.

Is it free?

Do you really make a prototype until the end? Can you offer materials? How long is the delivery date? We will respond to various questions properly.


We have been challenged various things for 50 years in metal processing.

We did not say “No!” for 50 years. We have many requests for trial manufacture that are the launch of communication satellites, parts of the future ultra high speed railway, various railway parts including the Shinkansen bullet train, nursing-care robot, future medical parts and more.

The fact that we didn’t say “No” for 50 years raised our technical level. There is no upper age limit for skills. We always challenge difficulties and take a process of trial and error. Finally, our customers get convinced. We believe that long succession of this process will lead to significant growth. Therefore, we will not say “No!”

“I was refused from subcontract factory.”
“I asked the university’s laboratory, but I was refused.”
“I was at a complete loss. I tried asking your company found on the web, because I have nothing to lose.”
There is such a request. We will do something and come together as one. The more it is difficult request, the more we can grow up. We really appreciate your request for our growth.

Our Quality Criteria

Japanese countries and Japanese companies receive an assessment from the world.
The reason is Japanese quality control. We are not aiming for normal level.
We take aim to exceed the expectations of customers.
Therefore, it is natural to get high satisfaction and evaluation from customers.
Not only so, but we value the concept of “the next manufacturing process is also customer”and“I will not make defective products as my process is final”.

Our Quality Criteria

“Listening and design” will done.

We are Sales Engineer Department and the entrance to fulfill customer’s request. We can make an image real if you don’t have a drawing. We can use English and Chinese.

We cut three “TRUMPF’s lasering machine.”

Most metals can be processed. Metals that are difficult to cut can also be cut. A machined flaw, a stress and a deformation by heat can be decreased, because this machine can be processed without touching the material.

We buckle two “large bender.”

Deal with various bending processes such as sharp angles and R bending, and more with two vendors. The accuracy of the bending process is high. Accuracy of dimension is within ± 0.5 mm. Curves and distortions are within ± 1 degree.

It is a team that weld and process “iron box.”

We can manufacture any box, from single to mass production and from small to large.

It is a Seikan team that weld various product.

We can weld stainless steel and aluminum. We can process mass production with robot welding machines. We make various suggestions not only to manufacture according to the drawings and specifications, but also to make it better.

We are a pain team that manufacture a finish.

We can do abrasive blasting from single to mass production and paint various colors. A coating film and a film thickness is uniform and beautiful. Three paint craftsmen get a task speedy and high-quality.

High quality can bring about the creation of high skill.
The skill clothes oneself in person. We value person.

If you only do what you can, you cannot grow. The technique can improve at every step of a process that you keep trying what you cannot do.
In other words, improvement in technology can only be a “challenger.” We are a gathering of challengers.
We take on a challenge and are not a quitter.