Introducing our strengths! We can accept prototypes solely for shape and functionality verification.
Kyo-Wa Hearts Co., Ltd. accepts "express prototypes" and contributes to accelerating our customers' development speed from prototyping to mass production. In particular, we specialize in the production of thin sheet spring products, which are difficult to simulate in terms of springiness, sliding properties, and durability. Additionally, when you request a prototype of a flat spring, we can quickly transfer data thanks to our rich variety of acceptance formats. Please feel free to contact us. [Production Details (Partial)] ■ Usable sizes: from grain of rice to palm-sized ■ Lot sizes - Handmade prototypes: approximately 1 to 100 pieces - Mass production: 10,000 to over 1 million pieces *For more details, please download the PDF or feel free to contact us.
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【Other Production Details (Partial)】 ■ Usable Materials - Spring materials such as SUS301, 304, 631, SUS420J2, etc. - High nickel materials such as pure nickel, 42 alloy, Kovar, etc. - Copper and copper alloys (brass, beryllium copper, titanium copper, phosphor bronze, nickel silver, etc.) - SPCC, SECC - Magnesium ■ Achievable Thinness, Slimness, Smallness, and Precision - Thin... Minimum plate thickness for cutting only: 0.03mm; with bending: 0.05mm - Slim... Minimum curling diameter: outer diameter φ0.45mm (t=0.12) - Precision... Roundness of rolled parts within 0.03; cutting precision ±0.02 *For more details, please download the PDF or feel free to contact us.
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Our company specializes in fine, complex, and precision press processing. *We also sell molds! We can handle everything from examining the shape of customer parts, prototyping, mold manufacturing, to mass production processing. 【Our Expertise Developed Over Time】 1. Deep drawing and flat spring processing 2. Fine processing (plate thickness: 0.03) 3. Complex shapes and high-precision bending processing 4. Processing of difficult materials (titanium, shape memory alloys, magnesium alloys, etc.) 【Proposal Power Supporting Quick Start-Up】 Many customers consult us during product development, asking if certain processing is possible, seeking advice during the conceptual stage, or wanting to start with prototyping. In the development phase, we provide comprehensive advice on material and shape decisions, as well as secondary processing, to fully support the launch of new products. We also believe that "refined products are a testament to stable quality," and we enter mass production only after sufficient adjustments (taking extra care). 【Efforts in In-House Product Development】 We are also engaged in in-house product development utilizing our cultivated precision press processing technology. We have developed a new type of file for binding documents, called "Nuke," which allows for easy insertion and removal of documents from the center, attracting attention as an item that enhances office productivity.
![[Processing Example] Warped Shape - For Those Who Don't Want to Leave Traces of the Number of Processes](https://image.mono.ipros.com/public/product/image/8f5/2000403007/IPROS71202025541247773003.jpeg?w=280&h=280)
