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  • 7 leading manufacturers
  • 46 additional suppliers
  • 19 states and provinces
  • 13 related categories
  • 3 guide sections
Source: IQS Directory database snapshotOur Methodology
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Sinker EDM Companies

Play Sinker EDM Informational Video
Sinker EDM Informational Video

IQS Directory implements a thorough list of sinker EDM companies and suppliers. Utilize our listing to examine and sort top sinker EDM companies with previews of ads and detailed descriptions of each product. Any sinker EDM company can design and engineer sinker EDM services to meet your companies specific qualifications. An easy connection to reach sinker EDM companies through our fast request for quote form is provided on our website. The company information includes website links, company profile, locations, phone, product videos and product information. This source is right for you whether it's for large capacity sinker EDM, miniature sinker EDM, and sinker EDM with erowa holders.

Suppliers located in CA, IL, OH +16 more states

Read the sinker EDM guide
Contents (5 sections)

Leading Sinker EDM Manufacturers

Location
Certifications

Showing all 7

Certification, declaration and ownership records are on file for 1 of 7 suppliers in this list, from supplier reports IQS reviewed. A supplier without one listed may still hold it.

Leading sinker EDM manufacturers
Placement No.ManufacturerLocationContactActions
1

Xact Wire EDM Corp

XACT Wire EDM Corp. is one of the largest and most experienced Wire EDM Companies in the country. Our Wire EDM manufacturing capabilities include a large number of high-end machines with two locations offering advanced CMM and video inspection. We work with a wide variety of customers in the medical, defense, aerospace, automation, robotics industries as well as many companies in the metal machining, tooling & stamping industries. We are ISO 9001:2015 certified. Contact us today to learn more!

LocationWaukesha, WI
View Manufacturer
2

Twin City EDM

Twin City is ISO 9001:2000 certified for all simple & complex EDM services, in addition to many other services & their forte is producing difficult, complex parts through their state-of-the-art equipment & highly skilled staff. TC will perform the nearly impossible & is known to give both 100% in quality & service. Our flexibility & versatility provide customers with affordable convenience.

  • AS9100 (Supplier-reported, reviewed Sep 2026)
  • ISO 13485 (Supplier-reported, reviewed Sep 2026)
  • FDA registered (Supplier-reported, reviewed Sep 2026)
LocationFridley, MN
View Manufacturer
3

Sematool Precision Mfg. Inc.

At Sematool Precision Mfg. Inc., we specialize in delivering high-precision EDM services that meet the exacting demands of modern manufacturing. Our expertise in both wire and sinker EDM allows us to produce complex geometries, tight tolerances, and fine finishes that conventional machining simply can’t achieve. We work closely with our clients to develop EDM solutions tailored to unique applications, from intricate prototypes to high-volume production runs.

LocationSanta Clara, CA
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4

Master Cut EDM

At Master Cut EDM, we provide precision electrical discharge machining for customers that need clean, accurate features in difficult materials. Our company focuses on EDM solutions for tooling, production components, prototypes, molds, dies, fixtures, and specialty parts where conventional machining may not deliver the required detail or tolerance.

LocationSchaumburg, IL
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5

Triangle Precision Industries, Inc.

At Triangle Precision Industries, we specialize in precision manufacturing solutions with a strong focus on EDM machining for industries that demand accuracy, repeatability, and dependable turnaround times. We work with customers requiring intricate metal components, tight tolerances, and complex geometries that conventional machining methods may struggle to achieve efficiently.

LocationKettering, OH
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6

Reliable EDM, Inc.

At Reliable EDM, we specialize in delivering precision electrical discharge machining solutions that help manufacturers produce complex components with exceptional accuracy. Our company uses advanced wire EDM and sinker EDM systems to create intricate shapes, fine details, and tight tolerances across demanding applications.

LocationHouston, TX
View Manufacturer
7

Swiss Wire EDM

At Swiss Wire EDM, we deliver precision electrical discharge machining solutions for manufacturers that require extreme accuracy, tight tolerances, and dependable repeatability. Our company specializes in advanced wire EDM processes capable of producing intricate components from hardened metals and specialty alloys without distortion.

LocationCosta Mesa, CA
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Draft

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Additional Sinker EDM Companies

The category’s other sinker EDM companies are listed on their own page, with location, phone and website where each supplier provides them.

View 46 Additional Sinker EDM Companies

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Sinker EDM Industrial Manufacturing Guides

1 guide

Sinker EDM: Everything You Need to Know about Parts & Uses

This article contains everything you need to know about sinker EDMs and their use. You will learn. What Is Sinker EDM? Types of Sinker EDMs The Sinker EDM…

13 chapters

Quick Answers

How many sinker EDM manufacturers are listed on IQS Directory?
7 leading manufacturers and 46 additional suppliers.
Where are sinker EDM manufacturers located?
The listed suppliers are in 19 states: California (9), Illinois (7), Ohio (7), Wisconsin (4), Minnesota (3), New York (3), Texas (3), Connecticut (2), and 11 more.
How do I get quotes from sinker EDM suppliers?
Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.

Sinker EDM

3 sections

Sinker EDM goes by many names, including conventional EDM, plunge EDM, and ram EDM. It produces parts by eroding materials in the path of an EDM tool using electrical discharges (or sparks) that can generate heat anywhere from eight to twenty thousand degrees. One of the two major types of EDM, sinker EDM differs from its counterpart wire EDM in terms of the type of electrode used. Common sinker EDM electrodes include machined graphite, copper tungsten and brass.

Applications of Sinker EDM

Industries commonly served by electrical discharge machining include aerospace, medical, tool and die, automobile, and military. Die sinking EDM is ideal for such applications as injection mold tooling, micro hole drilling, keyways, washers, and scientific research apparatus. Unlike wire EDM, which can only be used in the processing of 2D parts, sinker EDM has the capability of machining 3D pieces. It does not require the pre-drilling of a hole for the electrode and so can be used for more complex geometries.

How Sinker EDM Works

Consisting of an electrode and a work piece (the material being processed), the EDM electrode is used to generate a series of sparks and is connected to the work piece through a power supply. There is a highly conductive path established between the electrode and the work piece which creates an intense electric field that melts away the material. The electrodes and the work piece do not come into contact with each other but rather the dielectric bath conducts the current to melt away the material and then flushes away the unwanted debris.

Benefits of Using Sinker EDM

One of the biggest advantages to using EDM machining is its ability to create complex and intricate parts with a high degree of accuracy. In CNC EDM processes, CNC machines are used to guide, monitor, and control the EDM process, as well as CAD and CAM software. It can be applied to hard materials, such as stainless steel, copper, graphite, and other metals that are difficult to successfully machine with other conventional methods. Furthermore, as there is no contact between the machine tools and the work piece, there is less chance for process damage to the part. It is not deformed by impact or by heat, nor are there burrs that need to be removed through secondary machining. Sinker EDM is used for more complex geometries where electrodes are used to erode the desired shape into the part or assembly. Sinker EDM has another advantage over wire EDM in that sinker EDM does not necessarily cut all the way through the material, thus producing parts that wire EDM cannot.