Charleston, SC, EDM Machining is essential for parts with fine detail, hard metals, or unique geometry. That’s what we do at Roberson Machine Company.
Have questions about Charleston, SC, EDM Machining? Call us at 573-646-3996 or reach out online.
Table of Contents
- What Is EDM Machining?
- Key Advantages of EDM Machining
- Industries That Use EDM Machining
- EDM Machining: Materials We Work With
- Why Roberson Machine Company for EDM Machining?
Read more about our services and machining capabilities on our blog.
What Is EDM Machining?
EDM machining—used by shops in Charleston, SC—cuts conductive metals using sparks, not blades. It all happens underwater in dielectric fluid.
Think of it like carving metal with lightning. EDM is ideal for hard or exotic metals, tight internal features, and complex shapes that conventional machining can’t easily reach. It also produces clean, burr-free finishes that often require no secondary processing.
At Roberson Machine Company, we use EDM machining for Charleston, SC, companies to create highly precise parts for aerospace, defense, energy, and medical applications—especially when accuracy, complexity, and repeatability are critical.
Key Advantages of EDM Machining
For complex designs and exacting tolerances, EDM offers a clear edge.
- No Mechanical Stress: With no cutting force involved, EDM handles fragile geometries and thin-walled parts without risk of distortion.
- Range of Materials: EDM handles materials that conventional machining can’t, from titanium to carbide to hardened steels.
- Zero Tooling Costs: With no form tools required, EDM streamlines production of custom or changing part designs.
- Finish-Ready: EDM creates surfaces so clean they often skip additional processing entirely.
The result? Faster cycles, less material waste, and fewer post-processing steps.

Industries That Use EDM Machining
EDM machining fills the gap where traditional tooling fails—especially in industries that need complex, ultra-precise parts made from hardened alloys.
Industries in Charleston, SC, that use EDM machining include:
- Aerospace: Engineered for flight—EDM creates mission-critical parts with unmatched precision.
- Military & Defense: Built to withstand heat, impact, and stress—EDM machining meets military-grade specs.
- Automotive: Custom tooling and complex geometries for powertrain systems, mold inserts, and electrical components.
- Medical: From orthopedic implants to custom surgical tools, EDM meets tight tolerances with clean finishes.
- Packaging: EDM creates sharp, durable tooling for high-speed packaging systems and forming dies.
- Food & Beverage: Washdown-tough and sanitary—EDM produces clean parts for food processing and packaging systems.
- Oil & Energy: Deep-hole EDM drilling and precision shaping for components used in harsh or corrosive environments.
- Automation & Robotics: High-precision EDM parts for fixtures, housings, and movement-critical systems in automated workflows.
- Firearm Manufacturing: High-precision machining for weapon systems that demand durability and reliability.
- Consumer & Commercial Products: Ideal for prototypes and short runs—EDM supports fast iteration and tight detail.
- OEM & Custom Applications: EDM machining for hard metals, exotic alloys, and unconventional part geometries.
With decades of proven results, our EDM machining supports projects that demand consistent, high-performance output. Learn more about our team and our nationwide reach.
EDM Machining: Materials We Work With
Because EDM machining only works on conductive materials, it’s ideal for Charleston, SC, manufacturers dealing with tough metals like titanium, steel, and copper.
- Aluminum (6061, 7075, 7050): These lightweight, corrosion-resistant alloys are ideal for structural parts, enclosures, and brackets. Learn more about aluminum CNC machining and its capabilities.
- Stainless Steel (303, 304, 316, 321, 420, 416, 440): EDM machining is well-suited for these durable steels used in aerospace, food-grade, and medical-grade components.
- Brass and Copper: These soft, conductive metals are perfect for connectors, terminals, and components in electrical systems. Learn more about brass and copper applications.
- Titanium: For tough, heat-resistant applications, titanium excels—EDM machining offers clean, precise results in this premium alloy.
- Tool Steels and Carbides: EDM allows precision cutting of tough materials like D2, A2, H13, and tungsten carbide—materials common in molds and dies.
If you’re not sure whether your Charleston, SC, EDM machining material qualifies, reach out to our team and we’ll take a look at your specs.
Why Roberson Machine Company for EDM Machining in Charleston, SC?
With more than 20 years of experience and countless reviews, our team at Roberson Machine is here to support your next EDM machining project.
Whether it’s jet parts, surgical tools, or transmission housings—we’re ready to deliver EDM results that exceed expectations.
EDM is just one part of what we do. As your full-service precision machining partner, we also offer:
- CNC Machining: Precise turning and milling for tight tolerances and clean, finished parts.
- Multi-Axis Capabilities: We tackle advanced geometries with full 5-axis CNC machining capabilities in-house.
- Wire EDM: Perfect for intricate internal cuts, tight radii, and materials too hard for conventional tools.
- Prototyping: One-off parts and rapid EDM solutions that help test ideas fast—without sacrificing precision.
- Production Machining: Scalable options for short, medium, and high-volume jobs with repeatable accuracy and short lead times.
With value-added services that include assembly, welding, bead blasting, and final inspection, our team supports Charleston, SC, EDM machining projects from one-off test equipment to full production runs.
Other Charleston, SC, machining services we provide include:
- CNC Lathe Machining
- Custom CNC Machining for Part Production
- CNC Machine Automation
- Oil and Gas Precision Machining
- Aerospace Manufacturing
- Automotive Part Manufacturing
- High Volume CNC Machining
- Industrial Automation
- Solar Panel Manufacturers
Let’s talk about your Charleston, SC, EDM Machining project. Send us a message or call 573-646-3996 to get started.

