
Many of those who plan to manufacture precision springs may be wondering which manufacturer they should request.
Since the required functions and characteristics of precision springs vary depending on the application, it is important to select the right manufacturer or manufacturer.
This article introduces 11 reliable companies that can be commissioned to manufacture precision springs. We will also explain how to select the most appropriate company to request and the key points to consider.
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11 companies that can be commissioned to manufacture precision springs
Precision springs are important components used in a wide range of fields, including medical devices, electronic devices, and automotive parts.
Since high precision and durability are required, it is essential to request a specialized manufacturer.
Below are 11 companies and manufacturers that you can request to manufacture precision springs.
Koei Spring Industry Co.
Kohyei Spring Industry Co., Ltd. is a highly reliable manufacturer that has been engaged in the production of high-precision springs for many years.
Especially in the field of precision springs, we meet diverse needs based on the latest equipment and advanced technology.
We provide high-quality springs for a wide range of industries, including the aerospace, ship, plant equipment, and robotics fields, and can also manufacture springs with difficult processing.
Official Web Site | Koei Spring Industry Co. |
Types of springs that can be manufactured | Spiral springs, bamboo springs, disc springs, cylindrical coil springs, thin plate springs, wire-work springs |
Saitetsu Corporation
SAITETSU CORPORATION is a long-established manufacturer of precision springs and wire rod processed products, taking advantage of the unique strengths of Tsubame-Sanjo, Niigata Prefecture.
Our integrated in-house production system realizes "high quality, quick delivery, and low cost" and smoothly manages the entire process from order receipt to shipment.
We offer a wide range of processing items, from assembly and composite processed products to metals, resins, and rubbers, and we can also provide surface treatments such as painting, plating, and polishing.
With a wealth of experience and advanced technology, we can be considered a manufacturer that can meet a wide range of needs.
Official Web Site | Saitetsu Corporation |
Types of springs that can be manufactured | Precision springs (push springs, tension springs, torsion springs, fine wire processing springs), large springs (hot-formed coil springs, cold-formed coil springs) |
Nitto Hojo Corporation
Nittoh Spring Co., Ltd. is a manufacturer specializing in the production of precision springs, plate springs, and pressed products.
We are particularly strong in precision spring processing, with a proven track record in the manufacture of components for office automation equipment and digital home appliances.
All products are fully custom-made and can be flexibly handled from a single prototype to mass production.
Official Web Site | Nitto Hojo Corporation |
Types of springs that can be manufactured | Wire springs (compression, tension, torsion), wire processing, battery springs, plate springs |
Keihin Hatsujo Co.
Keihin Spring Co., Ltd. is a specialized manufacturer of precision springs for automotive applications.
We are especially good at processing wire springs and spring springs.
Based in Yokosuka, Kanagawa Prefecture, Japan, the company also has factories in Gunma and Malaysia, giving it a global production system, which is one of its strengths.
In addition, we boast a nearly 20% share of the global market for wiper blade springs.
Official Web Site | Keihin Hatsujo Co. |
Types of springs that can be manufactured | Wiper blade springs, wire springs, spiral springs, thin plate springs |
Dia Spring Inc.
Dia Spring Co., Ltd. is a manufacturer specializing in the design and prototyping of precision springs.
We mainly deal in the fields of electric, electrical, electrical equipment, automotive, and machine parts.
In terms of spring types, we specialize in manufacturing "round wire springs" and "plate springs," and we can also process "Inconel springs" that have excellent heat resistance and corrosion resistance.
They provide careful support from design to consultation and are flexible to your needs.
Official Web Site | Dia Spring Inc. |
Types of springs that can be manufactured | Precision springs, leaf springs, round springs, coil springs, torsion springs, in-coil springs |
Chuo Spring Industry Co.
Chuo Spring Industry Co., Ltd. is a manufacturer specializing in precision spring processing.
We provide products for a wide variety of fields, including weak electric current, automobiles, housing equipment, writing instruments, motors, and medical applications.
In particular, we have an established reputation for our ability to respond to custom designs tailored to the operating environment and application, and we can handle everything from small-lot prototyping to mass production.
We also manufacture springs using special materials.
Official Web Site | Chuo Spring Industry Co. |
Types of springs that can be manufactured | Special material springs, ultra-thin wire springs (compression coil springs, torsion springs, wire processing), deformed wire springs (square wire, trapezoidal, rhombic) |
Micro Hojo Co.
Micro Hojo Co., Ltd. is a manufacturer specializing in the production of ultrafine springs and springs for medical use.
We are particularly strong in ultrafine wire spring products.
We are involved in a variety of fields, such as electronic devices, automotive parts, and springs for medical use.
We boast the top share of the domestic market for springs used in ballpoint pens.
Official Web Site | Micro Hojo Co. |
Types of springs that can be manufactured | Medical springs, precision springs, micro springs, torsion springs, coil springs |

Seihatsu Spring Industry Co.
Seihatsu Spring Industry Co., Ltd. is a manufacturer specializing in the production of precision springs and pressed products.
It produces automotive parts and critical components for precision instruments, and has also introduced unmanned production lines using the latest technology.
In addition, the company is actively engaged in mold design and new technology development in pursuit of quality improvement.
The facility is equipped with a 3D printer, as well as laser processing and laser welding machines.
Official Web Site | Seihatsu Spring Industry Co. |
Types of springs that can be manufactured | Wire springs, leaf springs, precision presses |
Riken Hatsudo Kogyo Co.
Riken Hatsujyo Kogyo Co., Ltd. is a manufacturer of precision springs such as coil springs and sheet springs.
We are capable of processing ultra-fine, ultra-small springs and springs of complex shapes with high precision.
In addition to precision springs, we can also produce precision sheet metal parts, pressed parts, and assembly parts.
Official Web Site | Riken Hatsudo Kogyo Co. |
Types of springs that can be manufactured | Coil springs (compression springs, tension springs, torsion springs), sheet springs |
aiten corporation
Aiten Corporation is a "spring and sheet metal manufacturer" that can handle the entire process from manufacturing and processing to coating.
Especially for precision springs, we have a track record of manufacturing more than 5,000 types of products.
80 pieces of precision spring equipment have been installed to meet the needs of each application, and can handle large-lot production. We are able to deliver in a short time and at a low cost.
Official Web Site | aiten corporation |
Types of springs that can be manufactured | Compression springs, torsion springs, wire-work springs, tension springs, leaf springs |
Chuo Spring Co.
Chuo Spring Co., Ltd. is a leading manufacturer of high-precision springs and control cables mainly for the automotive industry.
Our strength lies in automotive parts, which are highly durable and precise.
Many of our major clients are also major automotive companies, which confirms our solid track record.
The types of springs that can be handled can also be checked in detail on the website.
Official Web Site | Chuo Spring Co. |
Types of springs that can be manufactured | Chassis springs, precision springs, coil springs, precision coil springs, valve springs, heat-resistant springs, springs for power back doors, thin plate springs, spiral springs, wirework springs, knit mesh springs |
What is a precision spring? What is the difference from ordinary springs?
A precision spring is a high-precision spring that requires particularly fine dimensional manufacturing and strength.
The difference from ordinary springs is "accuracy" and "application.
Precision springs are used in fields where errors are not tolerated, such as medical equipment, automotive parts, and electronic devices.
Ordinary springs can be used without any problem even if there is a slight error, but even a slight error in precision springs can affect their performance.
Therefore, precision springs must be made to micron-level precision and meet strict quality standards.
How to choose a contractor to manufacture precision springs
Here we will explain how to choose a precision spring manufacturer.
Whether or not the company has extensive experience in manufacturing precision springs
Since different specifications are required for different applications of precision springs, it is important to choose a supplier with extensive manufacturing experience.
Check the website for past manufacturing examples and available materials and shapes. If you are not sure about the company's track record, you can also contact the company by e-mail or phone.
Can we manufacture precision springs that match the application?
The type of spring required depends on the type of industry.
Choose a supplier that can manufacture springs for medical equipment, electronics, automobiles, and other applications.
Can I request other parts?
A supplier that can manufacture not only springs alone but also other precision parts together can reduce costs and shorten delivery time.
Check to see if you can request multiple parts at once.
Summary
When requesting the manufacture of precision springs, it is important to select a specialized company with a wealth of experience and high technical capabilities.
In particular, make sure that the company can design and manufacture springs suitable for the application and has a strict quality control system in place.
Please refer to the 11 companies listed in this article to find a manufacturer you can trust.
If you are considering manufacturing parts related to precision springs, please contact us.Taiga."Please make use of the following
Taiga is a free service that allows you to consult with experienced contractors.
We can efficiently proceed with the development of difficult or new parts, small-lot production, prototyping, and mass production while keeping costs low.
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