Among today’s most precise manufacturing tools, Boulder, CO, Wire EDM stands out. This ability makes wire EDM a cornerstone of Precision CNC Machining and modern production.
At Roberson Machine Company, our wire EDM (Electrical Discharge Machining) technology delivers accurate, burr-free results, from complex prototypes through production-critical assemblies. Reach out at 573-646-3996 or contact us online to see how Boulder, CO, Wire EDM can improve speed and quality for your next project.
Article Synopsis
- A quick look at how wire EDM works, why it cuts without contact, and when it outperforms conventional machining.
- Details on specifications and capabilities such as tolerances, taper angles, work size, and material types, showing if wire EDM is a match.
- Straightforward examples of real-world applications and industries (aerospace, medical, packaging, energy) and who inside those teams typically owns the work.
- Explaining what Roberson Machine Company brings to the table, with proven workflows, advanced equipment, and dependable turnaround times.
Wire EDM makes new design and manufacturing options possible—covering everything from aerospace prototypes to medical components—where other processes fall short. Below, we outline how the process functions, where it’s applied, and what working with Roberson Machine Company looks like.
Table of Contents
- What Is Wire EDM Machining?
- Real-World Applications for Wire EDM and Precision Cutting
- FANUC ROBOCUT α-C400iC: New Wire EDM Technology
- Wire EDM Capabilities & Specs
- Who Uses EDM Wire Cutting
- Materials We Work With for Wire EDM
- Why Roberson Machine Company
Find details on our machining services, reviews and success stories, and more about Boulder, CO, Wire EDM in the blog and FAQs.
What Is Wire EDM Machining? | [city, CO, Precision CNC Services
We include wire EDM as a specialized option within our wider CNC machining capabilities. Unlike standard machining tools that make contact, wire EDM uses a fine, electrically charged wire to cut conductive metals. The wire’s controlled sparks trace a programmed path, eroding material into accurate cuts with zero mechanical stress on the part.
It excels where conventional machining falls short: intricate profiles, precise slots, sharp inside corners, and components made from hardened steels, titanium, carbide, and other demanding alloys. Parts come off the machine precise, burr-free, and ready to move straight into the next step of your build.
Real-World Applications for Boulder, CO, Wire EDM and Precision Cutting
When geometry, finish, or tolerance demands are beyond conventional tooling—especially with tough materials, thin walls, or fragile parts—wire EDM is the solution. Wire EDM provides burr-free cutting across conductive materials, from titanium and carbide to Inconel, hardened steels, and others.
Prototypes, fixtures, and production work in Boulder, CO, are often carried out with wire EDM. Examples of applications include:
- Aerospace: Accurate turbine slots, seals, and tooling inserts designed to remain true following heat treatment.
- Military & Defense: Hardened alloy components and mission-critical assemblies that need distortion-free cuts and crisp internal corners.
- Automotive: Complex powertrain tooling, mold inserts, and prototype parts with fine internal clearances.
- Medical: Burr-free machining for surgical tools, implant parts, and micro features in medical-grade alloys.
- Packaging: Wear parts and forming dies with crisp edges and fine finishes to minimize rework.
- Food & Beverage: Food-grade stainless components built for washdown service, free from stress or burrs.
- Oil & Energy: Sealing surfaces, pump parts, and alloy components built for high-pressure, corrosive conditions.
- Automation & Robotics: Motion-critical housings, fixtures, and components for automation systems with tight interior details.
- Firearm Manufacturing: Precision firearm components including slides, tooling, and internals with consistent accuracy.
- Consumer & Commercial Products: Branding dies, custom fixtures, and low- to mid-volume precision parts.
- OEM & Custom Applications: Single R&D parts to large production jobs in conductive alloys, even exotic or hardened.
Have a project or a problem? Contact us online or call 573-646-3996 to discuss your Boulder, CO, wire EDM machining needs.

FANUC ROBOCUT α-C400iC: New Wire EDM Technology
We’ve brought in a FANUC ROBOCUT α-C400iC to raise throughput, precision, and thin-wire capabilities. It provides rapid auto-threading, dependable stability over long runs, and smooth surface finishes—perfect for intricate features and narrow internal spaces.
| Specification | Value | Notes |
|---|---|---|
| Max Workpiece Size | 730 × 630 × 250 mm (28.74″ × 24.80″ × 9.84″) | Compact footprint with generous load space. |
| Max Workpiece Weight | 500 kg (≈1,100 lbs) | Stable cutting on medium-to-heavy parts. |
| Table Travel (X/Y/Z) | 400 × 300 × 255 mm (15.75″ × 11.81″ × 10.04″) | Precise positioning for complex features. |
| U/V Travel | ±60 mm | Supports advanced taper and offset work. |
| Max Taper | ±30° @ 80 mm (3.15″); option: ±45° @ 40 mm (1.57″) | Handles steep tapers on thicker stock. |
| Wire Diameter | 0.10–0.30 mm (≈0.004″–0.012″); option: 0.05 mm (≈0.002″) | Thin-wire option supports ultra-fine features. |
| Controller | FANUC 31i-WB | Modern control with iHMI interface. |
| Notable Features | AWF3 auto threading, iPulse3 discharge control, AI thermal compensation, Core Stitch | Improves uptime, finish quality, and accuracy on long runs. |
What’s different? Building on legacy models, the ROBOCUT introduces ≈0.002″ thin-wire capacity, expanded tapering (±45° @ 1.57″ with option), and greater unattended stability through AWF3 and iPulse3. Because its work envelope and load capacity vary from older models, we select the right machine based on your part size and tolerance requirements.
Wire EDM Capabilities & Specs
Our Boulder, CO, Wire EDM services handle everything from micro features to large, heavy workpieces, delivering clean edges and repeatable accuracy on conductive materials. Below is a general breakdown of wire EDMs:
Core Capabilities
| Capability | Spec | Why It Matters |
|---|---|---|
| Max Cutting Height | 16.5″ | Tackle tall parts and deep cavities without multiple setups. |
| Tolerance Maintained | ±0.0003″ | Hit critical features for aerospace, medical, and precision tooling. |
| Max Taper Angle | 45° | Produce complex profiles and reliefs in mold and die work. |
| Wire Diameter Range | .002″–.010″ | Cut ultra-fine details or heavier sections as the job requires. |
| Max Workpiece Weight | 1,800 lbs | Run large industrial components with stable fixturing. |
Work Envelope
| Axis | Travel | Notes |
|---|---|---|
| X / Y / Z | 21.7″ × 14.6″ × 12.2″ | Flexible capacity for varied part sizes and setups. |
Taper Capability by Thickness
| Workpiece Thickness | Typical Max Taper | Use Case |
|---|---|---|
| 12″ | ±10° | Thick tooling plates and heavy die sections. |
| 3.25″ | 30° | Mold components with angled relief features. |
| 1.93″ | 45° | Sharp internal corners and complex taper profiles. |
Have a question about parts or materials? Contact us or reach us at 573-646-3996 for details on Wire EDM in Boulder, CO.
Who Uses EDM Wire Cutting in Boulder, CO?
Wire EDM does more than serve machine shops—it’s the precision process for anyone who can’t afford mistakes when making complex parts. We provide services ideal for:
- Project Managers & Directors: Stay on schedule by getting parts delivered on time and built to spec, preventing expensive setbacks.
- Prototype Engineers: Quickly validate and refine designs before moving into large-scale production.
- Quality Assurance Teams: Count on burr-free, uniform components that align with tough dimensional requirements.
- Compliance & Regulatory Specialists: Get inspection-ready parts built to exact specifications.
- Maintenance & Reliability Engineers: Maintain uptime with accurate, like-for-like replacements for worn or broken components.
If accuracy drives your success, our Boulder, CO, EDM wire cutting capabilities provide timely, cost-effective results.

Materials We Work With for Wire EDM
Wire EDM works only on electrically conductive materials, making it ideal for metals and alloys that are difficult to cut with traditional tools. It delivers clean, burr-free results without mechanical stress or thermal distortion—whether the job calls for thin-walled parts, hardened steels, or exotic alloys.
- Aluminum: Corrosion-resistant and lightweight, frequently machined into housings, brackets, prototypes, and precision parts.
- Stainless Steel: Widely used in aerospace, medical, and food industries thanks to its strength and corrosion resistance.
- Brass & Copper: Valued for conductivity and machinability, common in contacts, connectors, and fluid-handling systems.
- Titanium: Light but exceptionally strong, titanium is chosen for aerospace, surgical, and performance applications.
- Tool Steels & Carbides: Durable and capable of machining hardened steels and carbide, widely used for molds, dies, and industrial wear parts.
We use several CNC machining processes to hit your specs, and Wire EDM in Boulder, CO, is often central to that approach. Certain projects depend on Wire EDM alone, while others benefit from pairing it with milling, turning, or other precision machining techniques.
Why Roberson Machine Company for Boulder, CO, Wire EDM Cutting?
Roberson Machine Company has spent more than 20 years serving industries that require exacting levels of precision and accuracy. Through advanced CNC machining and wire EDM technology, we bring technical knowledge, reliable turnaround, attentive service, and extensive value-added services to Boulder, CO, clients.
Our shop offers a range of other machining capabilities:
- Precision Stainless Steel Machining
- CNC Lathe Machining
- Custom CNC Machining for Part Production
- CNC Machine Automation
- Oil and Gas Precision Machining
- Aerospace Manufacturing
- Automotive Part Manufacturing
- EDM Machining
- High Volume CNC Machining
- Industrial Automation
Through advanced machining and expert guidance across production, the Roberson Machine Company stands out as a leader in surgical-grade wire EDM. See our background and team, reach us online, or call 573-646-3996 to ask about Boulder, CO, Wire EDM services and machining capabilities.

