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  • 7 leading manufacturers
  • 46 additional suppliers
  • 19 states and provinces
  • 13 related categories
  • 2 guide sections
Source: IQS Directory database snapshotOur Methodology
Leading manufacturers
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Additional suppliers
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U.S. states and Canadian provinces where the listed companies are located.
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Other categories IQS links from this one as related products or processes.
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Plunge EDM Companies

IQS Directory provides an extensive list of plunge EDM companies and suppliers. Utilize our website to review and source plunge EDM companies with our easy-to-use features which allow you to locate plunge EDM companies that will design and engineer plunge EDM's for your exact specifications. Our request for quote forms make it easy to connect with leading plunge EDM companies.View company profiles, website links, locations, phone number, product videos, product specific news articles and other production information. We are a leading manufacturer directory who will connect you with the right manufacturers whether you are looking for small plunge EDM, precision plunge EDM, or 5axis plunge EDM.

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

Read the plunge EDM guide
Contents (4 sections)

Leading Plunge 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 plunge 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
View Manufacturer
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
View Manufacturer
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
View Manufacturer
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
View Manufacturer
Draft

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Additional Plunge EDM Companies

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

View 46 Additional Plunge EDM Companies

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Quick Answers

How many plunge EDM manufacturers are listed on IQS Directory?
7 leading manufacturers and 46 additional suppliers.
Where are plunge 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 plunge EDM suppliers?
Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.

Plunge EDM

2 sections

Plunge EDM, which goes by many names, including conventional EDM, sinker EDM, and ram EDM, produces parts by eroding materials in the path of the EDM tool using electrical discharges (or sparks) that can generate heat anywhere from eight to twenty thousand degrees. The piece of material to be worked on is connected to a power supply, and then an electrode is used to create a conductive path and cut the material into the desired shape or pattern. There is no actual contact between the electrode and the workpiece as the erosion takes place as a response to the electrical current being produced. The process takes place in a dielectric fluid, allowing electricity to be conducted. The fluid is used to flush away the debris from the process, allowing for clean and burr-free edges.

Applications of Plunge EDM

Plunge EDM is ideal for such applications as injection mold tooling, micro hole drilling, keyways, washers, and scientific research apparatus. Industries served include aerospace, medical, tool and die, automobile, and military. It is able to achieve high tolerances on complex geometries and patterns.

Process of Plunge EDM

Unlike wire EDM, which uses a pre-drilled hole to feed the wire into for the process, plunge EDM does not require a hole. Common plunge EDM electrodes include machined graphite, copper tungsten, and brass. Plunge EDM differs from its counterpart wire EDM, not only in terms of the type of electrode used, but also because plunge EDM has 3D capacities, while wire EDM can only produce 2D parts. Furthermore, plunge or ram EDM can be applied to hard materials, including stainless steel, copper, graphite, and exotic metals that would cause difficulties during conventional machining.

The process of electrical discharge machining typically takes place in a shallow bath of dielectric fluid, which prevents premature sparking and flushes away debris. For high precision pieces, CNC EDM is used in which CNC machines are used to guide, monitor, and control the machining process, as well as CAD and CAM software to ensure the highest tolerances. One disadvantage to using this process is the extra time and costs involved with fabricating the electrodes necessary for the specific procedure. These can be costly and can wear down easily due to the intensity of the electrical process. Therefore, it is important to take this aspect of EDM Machining into consideration before committing, however, the tight tolerances and minimal product damage remain as advantageous benefits to using EDM.