丸大精密 List of Products and Services

Marudai Precision is a company that specializes in wire-cut electrical discharge machining for molds and metal parts. The "things" that are essential to people's lives are supported by numerous technologies that do not appear on the surface. The "wire electrical discharge machining" that we perform is a crucial part of that important process. This document explains "Frequently Asked Questions about Wire Processing" in a Q&A format. Please feel free to download and take a look. 【List of Questions (Excerpt)】 ■ What is the movable range for wire processing? (Maximum stroke) ■ What materials can be processed with wire? ■ Can items with surface treatment be processed? ■ What is the processing accuracy and surface roughness? ■ How is the start hole for the wire processed? *For more details, please refer to the PDF document or feel free to contact us.

• Electric discharge machine
• Other molds

This document introduces one-point advice on estimates and orders, starting with processing selection, from the perspective of a wire-cut machining specialist. It provides detailed information on the strengths and limitations of wire cutting, methods to obtain estimates quickly and cheaply, and information regarding delivery times. Please take a moment to read it. 【Contents】 ■ Strengths and limitations of wire cutting ■ Wire cutting partner: small hole discharge machining ■ Methods to obtain estimates quickly and cheaply ■ Delivery times *For more details, please refer to the PDF document or feel free to contact us.

• Other processing machines
• Processing Contract
• others

Are you struggling to find a good machining company? Do you know the key points to identify a reliable precision machining contractor? 【Key Points to Identify a Reliable Precision Machining Contractor】 ▶ Able to accommodate various machining methods! Typically, the limit for taper cuts with standard wire is about 10 to 15 degrees, but places that can use large taper cuts can process at angles of 30 to 40 degrees! If they can handle various machining methods, including difficult-to-clamp jigs, you can consider quotes that other companies have declined. ▶ Consistent support from skilled staff! It's reassuring when skilled staff handle everything from quoting to delivery with responsibility. The national qualification for electrical discharge machining technicians requires a certain number of years of work experience as a prerequisite. Companies with operators who hold this qualification are recommended! ▶ Requests can be made from anywhere in the country! Companies that operate nationwide can respond quickly regardless of the user's location! Marudai Precision specializes in wire electrical discharge machining and fine hole discharge in Higashi-Osaka City, Osaka Prefecture, and possesses all the above points! For more details, please refer to the PDF or contact us.

• Processing Contract
• Processing Jig
• Electric discharge machine

Are you struggling to find a good machining company? Do you know the key points to identify a reliable precision machining contractor? 【What are the key points to identify a reliable precision machining contractor?】 ▶ A large number of machines! For example, if you have multiple surfaces and processes for molds and need to split the work among several companies, the number of points to confirm such as negotiating delivery times, discussing processing details, and understanding progress increases with each contractor. However, if there are many machines available, such discussions can be handled with just one company! You can also expect more flexible responses regarding delivery times. ▶ High processing accuracy! The accuracy of wire cutting is mainly influenced by three factors: the machine, the operator, and the environment. For the machine, it is recommended to have equipment that the manufacturer claims to be high precision or ultra-precision (such as ±0.003mm accuracy). For the operator, it is beneficial if the company has been established for a long time, has qualified personnel, and retains long-term employees. Regarding the environment, it is important that the processing and product storage areas are maintained at a constant temperature. Companies that meet these criteria are recommended. Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture, and possesses all of the above points! For more details, please refer to the PDF or contact us.

• Processing Contract
• Processing Jig
• Electric discharge machine

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. With numerous processing achievements in precision progressive molds with a thickness of 0.06, precision plastic molds, large die casting, molds, blank products, spline gauges, coupling gauges, screw gauges, medical instruments, prototype parts, conductive ceramics, and more, Marudai Precision solves your concerns when selecting a machining company with "5 Points to Identify a Reliable Precision Machining Contractor"! [Contents] ■ 5 Points to Identify a Reliable Precision Machining Contractor ■ What is Marudai Precision? *For more details, please download the materials or feel free to contact us.

• Processing Contract
• Processing Jig
• Electric discharge machine

Do you have any concerns when selecting a processing company? ✔ I want to place an order, but I don't know which one to choose... ✔ I requested difficult processing from multiple companies, but none of them accepted... ✔ Due to the complex shape, I have to request multiple processing companies, which is a hassle... This document explains "5 points to identify a reliable precision processing company." It clearly outlines how to determine which processing company is the best choice among many. [Contents] ■ 5 points to identify a reliable precision processing company ■ What is Marudai Precision? *For more details, please download the document or feel free to contact us.

• Processing Contract
• Processing Jig
• Electric discharge machine

Improving production efficiency of wire cutting processing and responding to short delivery times, the efficiency of removing cores (scrap) has become a challenge. To address this, our company has introduced a "Precision Wire Electrical Discharge Machine." As a result, we expect to establish a 24-hour unmanned processing system and achieve short delivery times through reduced lead times. 【Effect 1】 ■ Establishment of a 24-hour unmanned processing system - Achieved unmanned continuous processing that can complete from the 1st cut to the 2nd and 3rd cuts for molds and die plates with cores in a single setup. - Cores can be automatically separated, removed, and collected, allowing the process to proceed to the finishing stage without stopping the machine at night. 【Effect 2】 ■ Short delivery response due to reduced lead times - Effective utilization of nighttime and continuous operation is possible. - A full day of lead time can be reduced. - Deliveries can be made as soon as the day after an order is received. - By reducing machine downtime and labor costs, we can enhance price competitiveness and contribute to cost reduction.

• Electric discharge machine
• Processing Contract

About 50% of the work we undertake involves the processing of press molds and related parts for automotive and construction machinery components. Recently, labor shortages and long working hours in the manufacturing industry have become social issues, making it necessary to promote mechanization of operations and improve production efficiency. To enhance productivity in wire electrical discharge machining and respond to ultra-short delivery times, we have addressed two challenges. [Challenges] Improving production efficiency and responding to short delivery times in wire cutting processing → We want to enhance productivity through unmanned operation. Streamlining the removal process of cores (scrap) → We aim to improve the core removal process to carry out the entire series of operations without delays. [Results of Our Efforts] ■ Establishment of a 24-hour unmanned processing system - Achieved unmanned continuous processing that can complete the first, second, and third cuts of molds or die plates with cores in a single setup. - Since cores can be automatically separated, removed, and collected, we can proceed directly to the finishing process without stopping the machines at night. *You can download the "Precision Processing Case Studies" from the PDF download link! Please check it out.

• Electric discharge machine
• Processing Contract

Marudai Seimitsu specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We have numerous processing achievements in precision progressive molds with a thickness of 0.06, precision plastic molds, large die-casting molds, blank products, spline gauges, coupling gauges, screw gauges, medical instruments, prototype parts, and conductive ceramics. As a technical group holding first and second-level skill certifications, we are committed to improving manufacturing precision. In 2016, we received the "Osaka Excellent Manufacturing Company Award." Among our 16 pieces of equipment, we have 5 large processing machines and 2 ultra-precision wire electrical discharge machines. We are also advancing the establishment of a 24-hour robot automation system for wire cutting processing, further enhancing productivity and contributing to employee work style reform. [Contents] ■ Materials suitable for precision processing ■ Processing examples ■ Equipment owned ■ Company information *For more details, please refer to the "Precision Processing Case Collection" available for download in the PDF below.

• Electric discharge machine
• Processing Contract

Marudai Seimitsu specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We have numerous processing achievements in precision progressive molds with a thickness of 0.06, precision plastic molds, large die-casting molds, blank products, spline gauges, coupling gauges, screw gauges, medical instruments, prototype parts, and conductive ceramics. [Contents] ■ Materials suitable for precision machining ■ Processing examples ■ Equipment owned ■ Company information *For more details, please refer to the "Precision Machining Case Collection" available for download in the PDF below.

• Electric discharge machine
• Processing Contract

We have a wealth of processing achievements in precision progressive molds with a thickness of 0.06, precision plastic molds, large die-casting molds, blank products, spline gauges, coupling gauges, screw gauges, medical devices, prototype parts, conductive ceramics, and more! We conduct meetings with customers regarding each processed item, as well as CAD/CAM production, processing, and measurement. 【Processing Technology】 　　　Material　　　　　　　Processing/Treatment (Technology)　　　　　Products 　Iron, high-speed steel　　Wire electrical discharge machining 　Molds, machine parts 　Conductive ceramics　　　Wire electrical discharge machining 　Machine parts 【Final Products】 　Products (Items) 　　　　Parts (Components) 　Automobiles　　　　　Plastic molds, press molds, die-casting molds, testing jigs, prototype parts 　Home appliances　　　Plastic molds, press molds, line components, inspection jigs 　Construction hardware　Molds for door wheels, etc. 　Manufacturing machinery　LCD line manufacturing components, inspection jigs, spline gauges, etc.

• Processing Contract
• Other processing machines
• Electric discharge machine

We have a wealth of processing achievements including precision progressive dies with a thickness of 0.06, precision plastic molds, large die-casting molds, blank products, spline gauges, coupling gauges, screw gauges, medical devices, prototype parts, conductive ceramics, and more! We conduct consultations with customers regarding each processed item, as well as CAD/CAM production, processing, and measurement. 【Technical Capabilities】 ■ Capable of handling difficult-to-process materials (Inconel, ceramics, titanium, carbide, etc.) ■ Precision progressive dies (with a thickness of 0.08 successfully achieved), high-speed fine hole discharge (quench-hardened materials acceptable) 【Business Achievements】 ■ Wire-cut electrical discharge machining of high-precision progressive press dies (thickness of 0.08) for extremely small parts inside mobile phones and home appliances. *If you have any concerns or questions regarding wire cutting, please feel free to consult with us.

• Processing Contract
• Other processing machines
• Electric discharge machine

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. Our company owns a total of 16 wire electrical discharge machines, including 6 large machines. We can process a variety of shapes and materials, and we excel in machining large parts. Additionally, we are skilled in shape processing using wire electrical discharge machining, allowing us to achieve fitting processes finished with just one clamp claw, without the use of vices or dedicated jigs. 【Features】 ■ A total of 16 wire electrical discharge machines, including 6 large machines ■ Capable of processing a variety of shapes and materials ■ Able to machine large parts ■ Skilled in fitting processes *For more details, please refer to the external link page or feel free to contact us.

• Electric discharge machine
• Processing Contract
• Contract manufacturing

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

• Processing Contract
• Electric discharge machine

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

• Processing Contract
• Electric discharge machine

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

• Processing Contract
• Electric discharge machine

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

• Processing Contract
• Electric discharge machine

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

• Processing Contract
• Electric discharge machine

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

• Processing Contract
• Electric discharge machine

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

• Processing Contract
• Electric discharge machine

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

• Processing Contract
• Electric discharge machine

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 enhances the work efficiency of each employee and ultimately results in better products being completed more quickly! 【Main Equipment】 ■ Wire Electrical Discharge Machines The MM series, which emphasizes precision. A single electrode wire can process metal finely, smoothly, and as desired, achieving a level of precision that finishes surfaces in a way that cannot be obtained through traditional techniques known as "kisage." ■ High-Precision Wire Electrical Discharge Machines - MMB Series Offers sub-micron processing precision, and the MM series, utilizing kisage, achieves long-term stable pitch processing accuracy. With the world's highest level automatic connection device, it ensures reliable processing for plate machining with a high number of connections. It automatically corrects the displacement of the wire's vertical position caused by temperature changes and discharge heat, allowing for improved shape accuracy of the products. * Wire Electrical Discharge Machines: 16 units High-Speed Fine Hole Discharge Machines: 2 units CADCAM: 7 units

• Processing Contract
• Electric discharge machine

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. Asymmetric processing is a machining method that takes advantage of the characteristics of wire electrical discharge machining. The photo on the right shows the interior of a workpiece with a round upper shape and an oval lower shape.

• Other processing machines

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We can handle small lots and single-item processing!

• Other processing machines

Marudai Precision specializes in wire electrical discharge machining and fine hole discharge in Higashi-Osaka City, Osaka Prefecture. We perform processes such as titanium machining without burning using non-electrolytic power sources for conductive ceramics, graphite, Inconel, and more.

• Other processing machines

Marudai Seimitsu specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We can create gauges such as PL model gauges.

• Other processing machines

Marudai Seimitsu specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. We can process up to a maximum size of 750×500×310.

• Other processing machines

Maruda Precision specializes in wire electrical discharge machining and fine hole discharge machining in Higashi-Osaka City, Osaka Prefecture. This fitting shape is cut from a single material that has been six-sided polished. (SKD11, hardness 56-59 HRC)

• Other processing machines

Marudai Seimitsu specializes in wire electrical discharge machining and fine hole discharge in Higashi-Osaka City, Osaka Prefecture. It is a high-difficulty fitting processing of upper and lower irregular shapes consisting of four pieces.

• Other processing machines