Spring Manufacturing Technology of Sasaki-Hatsujo

Making wire springs (coil springs) out of thick wires while maintaining small coil diameters. This is what we are good at.

Wire springs with smaller coil diameters and larger wire diameters

Wire springs with smaller coil diameters and larger wire diameters.

Sasaki-Hatsujo excels in manufacturing wire springs (coil springs) with small coil diameters using thick wires.
Since starting the business in 1940, our long experience in the field of industrial springs enables manufacturing of coil springs with strict D/d (ratio of coil diameter to wire diameter) condition.

We will accept an order for even one prototype spring.

We will accept an order for even one prototype spring.

We will accept an order for designing and manufacturing prototype springs, even an order for only one spring.

Please feel free to contact us.

We undertake the order for production starting from designing.

We undertake the order for production starting from designing.

We designs and manufactures customized springs. Let us know the specifications (shape, size, mounting weight (repulsion of spring)) and we will offer you a optimum suggestion.

Please feel free to contact us.

We will also accept an order for mass-production springs.

We will also accept an order for mass-production springs.

The head office is located in Ota-ku, Tokyo, and the mass-production line is located in Miyagi-ken.

We can respond to your request for short-term mass production.