Wire cut electrical discharge machining for molds and metal parts [Processing achievements introduction]

We have a track record of over 500 companies and boast 30 years of trust! We own 16 machines and excel in precision processing utilizing wire cutting technology!

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We allocate a larger installation area per machine compared to typical processing companies, which increases the work efficiency of each employee and results in better products being completed more quickly! Here are some examples of our processing. What we are introducing this time is just a small example of our technology. For information on other technologies, please contact us. 【Processing Examples】 ■ Fitting processing with different shapes on the top and bottom This is a high-difficulty fitting processing with different shapes on the top and bottom, consisting of four pieces. The fitting shapes are designed so that only one piece can be removed at a time. 【Equipment Owned】 ■ Wire electrical discharge machines: 16 units ■ High-speed fine hole discharge machines: 2 units ■ CADCAM: 7 units

• Electric discharge machine
• Processing Contract

We have a track record of over 500 companies and boast 30 years of trust! We own 16 machines and excel in precision machining utilizing wire cutting technology!

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We allocate a larger installation area per machine compared to typical processing companies, which increases the work efficiency of each employee and results in better products being completed more quickly! Here are some examples of our processing. What we are introducing this time is just a small example of our technology. For information on other technologies, please feel free to contact us. 【Processing Example】 ■Fitting Processing The fitting shape was cut from a single material that has been polished on six sides, processed solely by wire electrical discharge machining without using vices or dedicated jigs, and only one clamp was used for processing. Additionally, the discharge machining surface and reference surface have not been corrected with oil stones or similar tools. 【Equipment Owned】 ■Wire Electrical Discharge Machines: 16 units ■High-Speed Fine Hole Discharge Machines: 2 units ■CADCAM: 7 units

• Electric discharge machine
• Processing Contract

We have a track record of over 500 companies and take pride in our 30 years of trust! We own 16 machines and excel in precision machining using wire cutting technology!

Maruda Seimitsu specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We allocate a larger installation area per machine compared to typical processing companies, which increases the work efficiency of each employee and results in better products being completed more quickly! Here are some examples of our machining. What we are introducing this time is just a small example of our technology. For other technologies, please contact us. 【Machining Examples】 ■ Upper and Lower Different Shapes The upper and lower different shapes machining is a method that utilizes the characteristics of wire electrical discharge machining. The photo shows the upper shape as round and the lower shape as an oval-shaped workpiece. * The application is for a rubber extrusion nozzle. As long as the number of elements in the upper and lower parts is the same, various shapes can be machined. * If the shapes are too complex, there may be a possibility that the interior cannot be removed. 【Equipment Owned】 ■ Wire Electrical Discharge Machines: 16 units ■ High-Speed Fine Hole Electrical Discharge Machines: 2 units ■ CADCAM: 7 units

• Electric discharge machine
• Processing Contract

We have a track record of over 500 companies and boast 30 years of trust! We own 16 machines and excel in precision machining using wire cutting technology!

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We allocate a larger installation area per machine compared to typical processing companies, which increases the work efficiency of each employee and results in better products being completed more quickly! Here are some examples of our processing. What we are introducing this time is just a small example of our technology. For information on other technologies, please contact us. 【Processing Examples】 ■ Large-scale processing Maximum processing size: up to 750×500×310. 【Equipment Owned】 ■ Wire electrical discharge machines: 16 units ■ High-speed fine hole discharge machines: 2 units ■ CADCAM: 7 units

• Electric discharge machine
• Processing Contract

We have a track record of over 500 companies and boast 30 years of trust! We own 16 machines and excel in precision machining using wire cutting technology!

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We allocate a larger installation area per machine compared to typical processing companies, which increases the work efficiency of each employee and results in better products being completed more quickly! Here are some examples of our processing. What we are introducing this time is just a small example of our technology. For information on other technologies, please contact us. 【Processing Examples】 ■ Gauges We can create gauges such as PL model gauges. 【Equipment Owned】 ■ Wire electrical discharge machines: 16 units ■ High-speed fine hole discharge machines: 2 units ■ CADCAM: 7 units

• Electric discharge machine
• Processing Contract

We have a track record of over 500 companies and boast 30 years of trust! We own 16 machines and excel in precision machining utilizing wire cutting technology!

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We allocate a larger installation area per machine compared to typical processing companies, which increases the work efficiency of each employee, resulting in better products being completed more quickly! Here are some examples of our processing. What we are introducing this time is just a small example of our technology. For information on other technologies, please contact us. 【Processing Examples】 ■ Difficult-to-process materials Conductive ceramics, graphite, Inconel, etc. With our non-electrolytic power supply, we can process titanium without burning, and theoretically, any type of material can be processed as long as it can conduct electricity! 【Equipment Owned】 ■ Wire electrical discharge machines: 16 units ■ High-speed fine hole discharge machines: 2 units ■ CADCAM: 7 units

• Electric discharge machine
• Processing Contract

We have a track record of over 500 companies and take pride in our 30 years of trust! We own 16 machines and excel in precision machining using wire cutting technology!

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We allocate a larger installation area per machine compared to typical processing companies, which increases the work efficiency of each employee and results in better products being completed more quickly! Here are some examples of our processing. What we are introducing this time is just a small example of our technology. For information on other technologies, please contact us. 【Processing Examples】 ■Material for Parts We accommodate various needs, including small lots and single-item processing. 【Equipment Owned】 ■Wire Electrical Discharge Machines: 16 units ■High-Speed Fine Hole Electrical Discharge Machines: 2 units ■CADCAM: 7 units

• Electric discharge machine
• Processing Contract

We have a track record of over 500 companies and boast 30 years of trust! We own 16 machines and excel in precision machining using wire cutting technology!

Marudai Seimitsu specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We allocate a larger installation area per machine compared to typical processing companies, which increases the work efficiency of each employee and results in better products being completed more quickly! Here are some examples of our processing. What we are introducing this time is just a small example of our technology. Please contact us for information on other technologies. 【Processing Examples】 ■ Precision Processing Precision progressive molds (plate thickness 0.06) Achievements in mold parts tolerance (-0, +0.003), etc. 【Equipment Owned】 ■ Wire Electrical Discharge Machines: 16 units ■ High-Speed Fine Hole Discharge Machines: 2 units ■ CADCAM: 7 units

• Electric discharge machine
• Processing Contract

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without affecting the base material with heat. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

● The production time for cast prototypes can be shortened! Since model making is not required, the production time for prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly producing sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! Different products, such as similar shapes or varying dimensions, can be molded at the same time in one molding process. This allows for the verification of multiple types in a short period.

Last month, we held a spring safety conference hosted by our company. We have compiled the details and atmosphere of the day into a PDF. We would appreciate it if you could take a moment to read it.

In recent years, as the importance of data integrity (DI) compliance in GMP environments has increased, there has been a growing call to deepen understanding of 21 CFR Part 11. This content introduces an on-demand presentation that organizes the background of Part 11, its relationship with DI, and its positioning in CSA guidance, while explaining the basic concepts of electronic records and electronic signatures. ■Content - Background and basic concepts of Part 11 - Relationship with data integrity (DI) - Positioning in CSA guidance - Basic requirements for electronic records/electronic signatures *This content is based on information as of March 17, 2026. *The information provided is intended for general informational purposes and does not guarantee specific compliance or suitability.