High-precision machining of hardened steel and difficult-to-cut materials | What materials and limits can be addressed with electrical discharge machining?

We can accommodate a wide variety of customer requests, including lathes, milling machines, machining, and more!

Processing Achievements - Application Categories 1. Mass Production Parts Processing Engine parts, gas turbine cooling holes, nozzles, etc. 2. Precision Parts Holes Jig holes, air vent holes, wire discharge start holes, etc. 3. General Mold Electrodes Die-cast molds, resin molds, ZAS molds, glass molds, etc. 4. Generative Processing Small resin molds (shape processing using simple electrodes) 5. Various Precision Parts Shafts, gears, product components, etc.

• Electric discharge machine

One by one, carefully and without mistakes. Creating products from discharge machining technology.

Our company is equipped with a shape electric discharge machining machine with a maximum processing tank of 1400×950×650 and a wire processing machine compatible with fine machining. We combine the craftsmanship and technical skills cultivated over many years to meet the diverse needs of our customers. We are committed to high quality and strict adherence to delivery times, working in collaboration within the company to produce our products. Since our founding, we have specialized in electric discharge machining and, in collaboration with partner companies, we also manufacture a variety of products such as lathes, milling machines, and machining to meet the diverse requests of our customers. Please feel free to contact us when you need our services. 【Processing Achievements】 ■ Mass production parts processing ■ Precision parts holes ■ Total mold electrodes ■ Creation processing ■ Various precision parts *For more details, please refer to the related links or feel free to contact us.

• Processing Contract

JOHNAN has released a video that clearly explains the implementation technology for stretchable films, which are expected to be utilized in wearable devices and medical equipment. In the video, you can see how the film, which has excellent elasticity, stretches and contracts. Please check our high technological capabilities and the flexible characteristics that are useful for product development. We hope this will help you generate new ideas in product development. ▼You can watch the video here [Link to the implementation page for stretchable films] https://www.johnan.com/dms/mounting/filmdevic/stretchable/

Thank you very much for your continued support. We sincerely apologize for the inconvenience, but our company will be closed for summer vacation during the following period. 【Closure Period】 From Saturday, August 9, 2025, to Thursday, August 14, 2025. We will resume normal business operations on Friday, August 15. We appreciate your understanding during this time and apologize for any inconvenience caused.

"Because it's an invisible place, we won't overlook it." Japan's climate is characterized by high temperatures and humidity, and particularly after typhoons and heavy rains, the conditions can be harsh for homes. It's not just the roofs and exterior walls that are affected by rain and wind. The area beneath the floor is actually the most susceptible and often overlooked point. This time, we will explain the "checkpoints for under the floor" that should be confirmed after a typhoon or heavy rain, the "responses" if abnormalities are found, and measures for preventing recurrence. [Table of Contents] ■ Why is underfloor checking necessary? ■ Checkpoints to confirm after a typhoon or heavy rain ■ Responses when damage is discovered ■ Points for preventing recurrence ■ Suggestions from Seihou Products ■ Summary Please be sure to read the [related materials] and [related links]. ↓ ↓ ↓

Explosion-proof motors available in stock We will deliver within 7 days to meet your delivery schedule. 【What is an explosion-proof motor?】 In factories and plants, flammable gases and vapors are present. When these mix with air and come into contact with an ignition source, an explosion or fire can occur. This motor is designed with measures to eliminate such ignition sources. 【Available stock models】 ■ Pressure-resistant explosion-proof motors, explosion-proof grade d2G4 - Foot-mounted type, output 0.4 to 3.7 kW, 4 poles - Flange type, output 0.4 to 0.75 kW, 4 poles ■ Increased safety explosion-proof motors, explosion-proof grade eG3 - Foot-mounted type, output 0.2 to 0.75 kW, 2 and 4 poles - Flange type, output 0.2 to 0.75 kW, 2 and 4 poles

As part of the "Hometown Ibara Future Creation Human Resource Development Project," we welcomed local elementary and middle school students to the special summer program "Ibara Job Exploration Tour 2025," a collaboration between the Ibara City Chamber of Commerce and the Corporate Branding Committee. We conducted a presentation that clearly and enjoyably introduced how our technology supports society, allowing the children to learn about the appeal of manufacturing and the significance of working while interacting with actual devices and products. Through this initiative, we hope to deepen our connection with the community and nurture the curiosity of the children who will carry the future. We sincerely thank everyone who participated, as well as all those involved in planning and organizing the event.