Electrical Discharge Machining Services

RAM Tool offers precision electrical discharge machining services using advanced equipment and skilled operators. Our team brings decades of hands-on experience with EDM machinery like Mitsubishi Wire EDM and sinker systems. Since 2000, our dedicated EDM department has supported complex, high-tolerance projects across industries with precision CNC machining services. We deliver reliable, on-time results through efficient, in-house CNC EDM machining. Contact us today to get started.

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What are Electrical Discharge Machining (EDM) Services?

EDM machining services use controlled electrical sparks to erode material and form detailed part geometries. Electrical discharge machining is ideal for high-precision applications, especially when working with tough or brittle materials such as hardened steel or carbide.

EDM is the preferred solution for:

Hard Materials: CNC EDM machining is effective for materials traditional cutting cannot handle
Complex Geometries: EDM machinery produces narrow slots, sharp corners and intricate cavities
Tight Tolerances and Surface Finish: EDM delivers exceptional dimensional accuracy and refined finishes
Delicate Workpieces: No contact means no mechanical stress or distortion
Low-Volume Production: EDM machining services offer efficiency and cost control for smaller runs

Electrical Discharge Machining Services Grafton, WI

Our EDM Machinery

RAM Tool uses advanced EDM machinery to perform a wide range of EDM machining services with speed and precision. Our equipment lineup includes:

EDM Sinker

Qty	Make	AMP	Travel Capacity	Tank Size
1	Mitsubishi EA30	200	27.6" x 19.7" x 13.8"	50.4" x 33.5" x 17.7"

EDM Wire

Qty	Make	Model	Travel Capacity	Tank Size
1	Mitsubishi	FA20S	19.7" x 13.77" x 11.8"	41.3" x 31.5" x 11.6"
1	Mitsubishi	FX20K	19.7" x 13.77" x 11.8"	41.3" x 31.5" x 11.6"

Small Hole Driller

Qty	Make	Travel Capacity	Dia.
1	Current EDM	58" x 28" x 28"	.004"-.256"

Benefits and Advantages of EDM Services

High precision

EDM machinery achieves micron-level tolerances for complex shapes.

Material versatility

EDM works on hardened steel, titanium, carbide and exotic alloys.

No mechanical stress

EDM does not produce any mechanical stress on the workpiece, making it ideal for fragile or brittle materials.

No tool wear

EDM avoids physical contact and tooling degradation.

Complex shapes

EDM machining supports tight contours and deep cavities.

High speed

EDM delivers fast turnaround, even in CNC EDM machining scenarios.

See Our Electrical Discharge Machining Services in Action

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Additional Services Offered

In addition to electric discharge machining services, we offer a wide range of value-added capabilities to support your full production workflow:

engineering & design services

manufacturing services

EDM services

inspection department services

CNC machining services

Delivery Services

Our Industries Served

RAM Tool, Inc. is proud to offer a range of EDM department services to various industries. Our experience in the defense, construction, aerospace, automotive, mining, and oil and gas industries has allowed us to handle projects that require the utmost precision and quality.

All Industries

Oil & Gas

Wind Energy

Railroad

Automotive

Industrial

Mining

Agriculture

Powersports

Aerospace

Military

Medical