東豊精工 List of Products and Services

This is a technical handbook published by a company that has been engaged in the design and manufacturing of springs since its establishment in 1957.

• Spring

Toho Seiko Co., Ltd. is a specialized manufacturer supplying precision springs to various industries, from office automation equipment to automobiles and medical devices. We offer a world-class range of products that meet customer needs. Our precision spring products (leaf springs) and pressed products are backed by design technology based on experience and advanced machining techniques using state-of-the-art machine tools, ensuring the production of high-precision and high-quality molds and guaranteeing product accuracy. We also accommodate product design for thin plate springs, including load calculations and stress calculations, similar to multi-forming pressed products. For more details, please contact us or refer to our catalog.

• Spring

Toho Seiko Co., Ltd. is a specialized manufacturer that supplies precision springs to various industries, from office automation equipment to automobiles and medical devices. We offer a world-class range of products that meet our customers' needs. Our precision spring products (leaf springs) and multi-forming molded products are manufactured in-house from mold design and production to molding, allowing us to respond to short delivery times and low costs. We can also process complex bending shapes in a single operation, and our processing methods, which minimize material loss, achieve low costs. For more details, please contact us or refer to our catalog.

• Spring

Toho Seiko Co., Ltd. is a specialized manufacturer that supplies precision springs to various industries, from office automation equipment to automobiles and medical devices. We offer a world-class range of products that meet customer needs. Our precision spring products (wire springs) and compression coil springs utilize NC coiling machines and process management devices with free height and outer diameter measurement functions to achieve high quality and cost reduction. Additionally, we design and manufacture special shapes, seat winding, anti-tangling features, and end grinding according to application requirements. For more details, please contact us or refer to our catalog.

• Spring

Toho Seiko Co., Ltd. is a specialized manufacturer that supplies precision springs to various industries, from office automation equipment to automobiles and medical devices. We offer a world-class range of products that meet customer needs. Our precision spring products (wire springs) include tension coil springs, which are produced using several types of spring machines primarily based on NC machines, allowing us to accommodate high-tension springs, forming with ultra-fine wire, and various hook shapes. For more details, please contact us or refer to our catalog.

• Spring

Toho Seiko Co., Ltd. is a specialized manufacturer that supplies precision springs to various industries, from office automation equipment to automobiles and medical devices. We offer a world-class range of products that meet customer needs. Our precision spring products (wire springs) and torsion springs utilize 15 types of NC spring machines and forming machines, including our own developed NC machines, along with tool processing technology, enabling the molding of a wide variety of shapes and torque management, starting with double torsion springs. For more details, please contact us or refer to our catalog.

• Spring