相互発條 List of Products and Services

Our company handles "Spiral Screws." We can continuously manufacture them in lengths of up to 7 meters with a cooling effect. The wear on the recessed areas of the screw side is reduced, maintaining consistent conveying capacity even at high rotational speeds. We were the first to develop non-uniform pitch spirals, and our original products, including non-uniform pitch spirals and spiral anchors, have received high technical evaluations. 【Features】 ■ Continuous manufacturing possible with a cooling effect for lengths up to 7 meters ■ Improved material strength and safety for long lifespan ■ Surface is hardened compared to conventional joint types ■ Smooth surface and uniform finish with no joints ■ Exhibits great capacity with low power consumption *For more details, please refer to the PDF materials or feel free to contact us.

• Spring

We handle "shape memory alloy springs." Shape memory alloys have a unique property that allows them to return to their original shape when heated, even after being freely deformed. Our product is an alloy of Ni and Ti, which is highly resistant to corrosion and lighter than conventional springs. It serves both as a temperature sensor and an actuator. We offer a wide range of services tailored to various applications, including design, prototype production, and characteristic testing such as temperature cycle tests. [Features] ■ Returns to its original shape when heated, even after being freely deformed ■ Highly resistant to corrosion and lighter than conventional springs ■ Widely applicable *For more details, please refer to the PDF document or feel free to contact us.

• Spring

Our company handles "springs for aircraft and space equipment." In the Aerospace Division, we manufacture springs used in space development, aircraft, defense equipment, and nuclear facilities, which are installed in various functional components. These springs are made from special materials such as titanium alloys, as they require properties like low specific gravity, heat resistance, and corrosion resistance to withstand harsh operating environments. The management of various special processing, procurement of overseas standard materials, JIS standard materials, and imported materials from Europe and the United States has received recognition from various sectors. 【Features】 ■ISO 9001 certification obtained ■JIS Q 9100 certification obtained ■Nadcap certification obtained *For more details, please refer to the PDF materials or feel free to contact us.

• Spring

Our company handles "springs for civilian use." Springs are used in various types of equipment. Even if it is just one unit, without that spring, it cannot function as a component or as a product. Leveraging over 70 years of know-how, our company has entered various sectors. Our springs for automobiles, construction machinery, and Shinkansen (bullet trains), which are our areas of expertise, have earned great trust from our customers due to their high quality. [Features] ■ Compression springs: Wide manufacturing capability with wire diameters ranging from 0.4 mm to 16 mm ■ ISO 9001:2015 certification obtained *For more details, please refer to the PDF materials or feel free to contact us.

• Spring

Sōgō Hatsujo Co., Ltd. is a specialized manufacturer engaged in the production and sale of various springs using materials such as piano wire, stainless steel, titanium, Inconel, Hastelloy, and shape memory alloys. We handle a wide range of products, including springs for civilian use, aircraft and aerospace equipment, and shape memory alloys, manufacturing springs for various fields including automotive, aerospace, and medical devices. 【Business Activities】 ■ Manufacturing and sales of various springs for aircraft, nuclear facilities, heavy electrical equipment, automobiles, hydraulic equipment, various instruments, and general precision machinery ■ Manufacturing and sales of shape memory alloy springs and various types of superelastic alloy wire ■ Manufacturing and sales of springs made from titanium alloys, Inconel, etc. ■ All businesses incidental to the above *For more details, please refer to our catalog or feel free to contact us.

• Spring
• Contract manufacturing