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EDM Services

Ramtec's EDM services include:

  • RAM sinker EDM
  • wire EDM
  • EDM drilling
  • fast hole EDM
  • electrode manufacturing
  • precision grinding
  • CNC machining

All services are performed in-house so our customers get the top cost efficiency, reliability, and quality that they expect. We operate 4-axis wire EDM and RAM sinker EDM equipment with hole popping capabilities. This equipment is set up with multiple position tool changers and capabilities that require minimal operator interaction. After set-up, machining cycles can run continuously. This allows us to be a very cost-effective service, as mentioned.

Our electrodes are cut on a Micro Mill for the ultimate in precision with good surface finishes on parts. State-of-the-art EDM equipment and the use of quality graphite allows us to attain the highest of standards.

EDM is a manufacturing process where a custom shape is created using electrical discharges sparks. Material is removed from the work piece by a series of rapid current discharges between two electrodes. These electrodes are separated by a dielectric liquid and subject to electric voltage. Wire EDM uses wire as the electrode while sinker EDM accurately sinks a custom shape into the material.

Take a panoramic tour of our facility found below.

On-time delivery is assured and rush orders delivered within 24 hours, if necessary.

Sample Tooling:

All tooling is custom to your specification, with nothing standard. We can produce a wide range of variation in thicknesses, lengths, widths, heights, part weights, tolerances, and die clearances. Our tooling holds up under the challenge of significant wear resistance.

  • Punches
  • Trim Sections
  • Pins
  • Strippers
  • Wear Parts
  • Perishable Tooling
  • Punch Holders
  • Form Inserts
  • Other Die and Mold Components

Quality Integrated In Our Processes


Ramtec is an ISO 9001:2015 certified EDM company employing state-of-the-art quality inspection technologies and techniques in our facility. We maintain complete in-house responsibility for our high quality standards. "100% Made in the USA" Quality is integrated into every part that we produce.

Various grades & sizes that are pre-hardened, is always in-stock to ensure smooth workflow for us and our customers. If you need a broken die or mold part repaired or replaced quickly.


  • Carbide
  • Tool Steels: A2, D2, S7, H13, CPM-10V
  • Aluminum
  • Carbon Steel
  • Stainless Steel
  • Graphite


  • Electrical Connector
  • Die and Mold
  • Consumer Products
  • Medical
  • Automotive
  • Special Machine

View Our Manufacturing Facility

We utilize state-of-the-art equipment and the latest technology.

Our Wire EDM Machines Featuring:


Mikron HSM 300 Electrode Mill with 3R WorkPal Robot

  • high-precision, high-speed milling machine used in EDM graphite electrode production

AgieCharmilles DRILL 20 (fast hole popper)

  • this EDM hole popper is ideal for drilling multiple start holes

Charmilles Roboform 31 ( 16 position tool changer )

  • a die sinking EDM machine also called cavity type EDM or volume EDM, consists of an electrode and workpiece submerged in an insulating liquid

Charmilles Roboform 22 (4 position tool changer )

  • Contact Ramtec for more information about our EDM machining services and to receive a no-obligation project quote today.

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