List of Spring products
- classification:Spring
1~45 item / All 1016 items
Reduce the workload from handling heavy objects! Here are five case studies that solved customer challenges! We are also accepting free consultations and tests tailored to your work!
- Other conveying machines
A belt grinding machine that has been in use for about 50 years since 1973. In addition to trust and proven results, the lineup is also extensive.
- Other machine tools

Belt grinding machine "Veda Machine" has high durability and a wide range of service parts.
The "Bader Machine" is our belt grinder that boasts excellent polishing performance for each individual unit. By selecting models and types according to the shape and size of the workpiece, and by equipping it with a polishing belt suitable for the task, it can flexibly accommodate a wide variety of items across various fields. Please make extensive use of it for high-efficiency polishing and grinding, reduction of work time, labor-saving, and standardization of tasks. 【Lineup】 ■ Portable type BP-K (air motor type) ■ Made-to-order machine PC-1 (wheel centerless), BC (standard dust cover) ■ Installed type BM (basic type), SBA-1, BH-2 ■ Wheel type SBD-4S, SBD-7, BWd *For more details, please download the PDF or contact us.
Technology that is particular about 0.001mm! Manufacturing metal processing products with various shapes and functions.
- Spring
- Processing Contract
Seal components that prevent the intrusion of liquids and gases for an extended period, and spring components that can be used for EMI shielding and retention. Technical explanation materials availabl...
- Spring
- Other machine elements
- Machine elements
This is a coiling tool made of diamond (PCD). We have a track record of producing coiling pins, core rods, wire guides, pitch tools, and more.
- Inductor Coil
- Spring
The lineup includes standard models of free piston type and all gas type! Maximum length locking mechanism type and stepless adjustment type can also be custom-made!
- Spring
It is a coin-shaped lithium manganese dioxide battery.
- Secondary Cells/Batteries
- Spring
- Lithium-ion battery
Gas spring all-gas type (piston rod downward use) available in 129 variations with a stroke range of 50mm to 360mm.
- Spring
Gas spring free piston type (mountable in all directions) with a lineup of 33 types ranging from 50mm to 250mm stroke.
- Spring
The manufacturing equipment created according to the customer's requests is custom-made, one by one!
- Other machine elements
- Spring
- Other industrial robots
We also accommodate small lot production! Leave the screws and bolts to us!
- Spring
- bolt
The reason why spring manufacturers across the country rely on us is that our "hand-winding technology" is alive and well.
- Spring
From mold to heat treatment, everything is completed in-house. That's why both quality and delivery times are consistent.
- Spring
In this area, fine adjustments by humans that exceed the precision of machine tools are necessary.
- Spring
I have compiled a collection of examples of leaf spring manufacturing from Kyowa Hearts as a reference!
- Other electronic parts
- Spring

[Notice] Information on Exhibiting at the 25th Mechanical Components Technology Exhibition
This is an announcement for our participation in the 25th Mechanical Components Technology Exhibition! The first real exhibition of this year will be held at Makuhari Messe. Shall we solve your metal processing concerns together? Please come to the Kyo-Wa Hearts booth for technical consultations and information gathering! We will give away technical materials as novelties! (Note: The technical materials will be available until they run out. Thank you for your understanding.) Details of the exhibition are as follows: ■ Event: 25th Mechanical Components Technology Exhibition ■ Date: February 3 (Wed) to February 5 (Fri), 10:00 AM to 6:00 PM (ends at 5:00 PM on the last day) ■ Location: Makuhari Messe ■ Admission Fee: Please apply for an invitation ticket from the URL above. It will be free. (Please note that if you do not have an invitation ticket, the admission fee will be 5,000 yen.) ■ Booth Number: Hall 5, 15-5 [17] ■ Products to be exhibited: We plan to showcase fine press parts, progressive drawing parts, prototypes, magnesium alloy processed products, our own products Nuke and Maggreen. We sincerely look forward to your visit.
As a result of excellent design, we can achieve high productivity products at low cost!
- Spring
- Other metal materials
When you hear "spring," I think what everyone immediately thinks of is a coil spring. In this document, I will explain four types of leaf springs in order.
- Spring
We will thoroughly explain points regarding the use of stainless steel as a material for springs and joining technologies! *Free materials are currently being offered.
- Spring

[Notice] We have made an investment in the latest Aizawa-manufactured press brake!
In manufacturing, we don't immediately create molds for mass production; instead, we first produce a few prototypes, typically around 100. What we need for this is the press brake. It is a sheet metal machine used to bend thin sheet metal materials. The features of this machine include high repeatability precision, fine adjustment mechanisms that can be tailored to the product, easy clamp for one-touch mold attachment, quick change, CAD/CAM integration, and the capability for internet connectivity for IoT use! Trust Kyo-Wa Hearts not only for mass-produced items but also for prototypes!
At Kyowa Hearts, we specialize in processing thin, small, and narrow leaf springs.
- Spring