昌和発條製作所 List of Products and Services

The spring is a functional component that causes problems even if just one is missing, but designing one surprisingly takes a lot of time, and it is not uncommon for this to cause practical issues. The San-Etsu series compression coil springs are always in stock with a total of 919 types, featuring wire diameters from φ0.4 to 10mm, outer diameters from φ4.5 to 80mm, and materials including piano wire and stainless steel wire. We respond to customer requests with an immediate delivery system, supplying springs with stable performance in small quantities. ◎ How to select a spring (1) Determine the material based on the atmosphere and environment in which it will be used. (2) Decide on the necessary outer diameter or inner diameter of the spring. (3) Determine the free length of the spring (the length before displacement). (4) Decide on the required load (or spring constant*1, deflection amount*2, etc. may also be acceptable). *1 Spring constant: The load obtained when the spring is displaced by 1mm (load ÷ deflection amount). *2 Deflection amount: The change that occurs when a load is applied to the spring.

Twisted springs (kick springs, torsion springs) made using square wire, which is a type of shaped wire, have significantly stronger torque compared to springs made from regular round wire. "San-Ei Springs" boasts industry-leading technology and production capacity in this "shaped wire (square wire) twisted spring." Additionally, we have a wide range of processing tools and square wire materials, allowing for speedy prototype responses. To introduce you to our "shaped wire (square wire) twisted springs," we have created a brochure, so please take a look. We also include application examples. We have printed booklets available, so feel free to request one.

"Isn't Sanko Springs the manufacturer of San-Es standard springs?" That's right, but that's not all; we are actually also skilled in "custom springs." The proportion of custom spring production in our annual output reaches 91.1% (as of 2021). It might be fair to say that we are more proficient in custom springs. Especially in the case of torsion springs made from irregular wire materials, we boast industry-leading technical expertise and production capacity. We are happy to listen to your concerns! Sanko Springs does not easily say "we can't." Please leave your "custom springs" to Sanko Springs Manufacturing!