In modern manufacturing, Fresno, CA, Wire EDM is a leading process for accuracy and complexity. This ability makes wire EDM a cornerstone of Precision CNC Machining and modern production.
Roberson Machine Company applies advanced wire EDM (Electrical Discharge Machining) systems to achieve burr-free, consistent outcomes across projects from detailed prototypes to mission-critical production parts. Give our team a call at 573-646-3996 or contact us online to learn more about how Fresno, CA, Wire EDM can accelerate and enhance your next project’s success.
Article Synopsis
- A concise breakdown of how wire EDM works, its contact-free cutting process, and the cases where it’s superior to traditional machining.
- Key specifications and capabilities including tolerances, taper limits, work envelopes, and materials to assess project fit.
- Examples of real-world applications and industries—aerospace, medical, packaging, energy—and the team members who manage these projects.
- Highlighting what Roberson Machine Company brings to the table, such as established processes, modern technology, and predictable timelines.
From aerospace parts to medical components, wire EDM provides design and production options beyond the reach of conventional processes. The sections below explain how wire EDM works, its applications, and what to expect from Roberson Machine Company.
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
Check out our machining capabilities, success stories, and extra content about Fresno, CA, Wire EDM on the blog and FAQs.
What Is Wire EDM Machining? | [city, CA, Precision CNC Services
Wire EDM is one of the specialized services included in our broader CNC machining capabilities. Unlike standard machining tools that make contact, wire EDM uses a fine, electrically charged wire to cut conductive metals. Controlled sparks from the wire erode material along a programmed path, leaving highly accurate cuts without mechanical stress.
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. Each cut is delivered precise, burr-free, and prepared for the next step in your build.
Real-World Applications for Fresno, CA, Wire EDM and Precision Cutting
Choose wire EDM when conventional tooling can’t hit the geometry, finish, or tolerance you need—especially with hard-to-machine materials, thin-walled features, or parts that can’t take rigid cutting forces. It handles conductive metals with burr-free precision, including titanium, carbide, Inconel, hardened steels, and more.
From prototypes and fixtures to complete production runs, teams across Fresno, CA, rely on wire EDM. Frequent applications include:
- Aerospace: Turbine slots, seals, and tooling inserts cut to tight tolerance even after heat treatment.
- Military & Defense: Hardened alloys and mission assemblies where crisp internal corners and accuracy are vital.
- Automotive: Mold inserts, powertrain tooling, and prototypes machined with tight internal clearances.
- Medical: Medical instruments, implants, and fine features in biocompatible metals delivered burr-free.
- Packaging: Forming dies and wear parts with sharp edges and smooth finishes to reduce post-processing.
- Food & Beverage: Corrosion-resistant stainless components for washdown environments, cut without mechanical stress.
- Oil & Energy: Precision-machined sealing surfaces, pump hardware, and alloys that withstand corrosive environments.
- Automation & Robotics: Fixtures, housings, and robotic components machined with fine internal accuracy.
- Firearm Manufacturing: Slides, tooling, and inner firearm parts manufactured with clean edges and repeatable tolerances.
- Consumer & Commercial Products: Precision branding dies, fixtures, and parts for consumer and commercial applications.
- OEM & Custom Applications: Single R&D parts to large production jobs in conductive alloys, even exotic or hardened.
Need help with a project or part? Contact us online or call 573-646-3996 to review your Fresno, CA, wire EDM machining needs.

FANUC ROBOCUT α-C400iC: New Wire EDM Technology
We’ve added a new FANUC ROBOCUT α-C400iC to expand cutting speed, precision, and thin-wire capability. With quick auto-threading, steady long-duration operation, and excellent surface finish, it excels at producing intricate features and precise internal gaps.
| 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? Unlike older specs, the ROBOCUT supports thin-wire use down to ≈0.002″, offers taper options up to ±45° @ 1.57″ (with option), and runs faster, steadier unattended cycles with AWF3 and iPulse3. Its work envelope and load limits differ from past models, so we fit the right unit to your part’s size and tolerance needs.
Wire EDM Capabilities & Specs
Our Fresno, CA, Wire EDM services handle everything from micro features to large, heavy workpieces, delivering clean edges and repeatable accuracy on conductive materials. See the breakdown below for more on 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. |
Want to know more about a part or material? Contact us or call 573-646-3996 for information on Wire EDM in Fresno, CA.
Who Uses EDM Wire Cutting in Fresno, CA?
Not limited to machine shops, Wire EDM is a precision service for teams that must have complex parts made correctly from the outset. Our services are a fit for:
- Project Managers & Directors: Ensure timelines hold by receiving parts that meet specifications and arrive when needed, cutting out delays.
- Prototype Engineers: Validate and tweak designs early, reducing risk before entering large-scale production.
- Quality Assurance Teams: Count on burr-free, uniform components that align with tough dimensional requirements.
- Compliance & Regulatory Specialists: Count on components produced to exact standards and ready for audits.
- Maintenance & Reliability Engineers: Get exact replacement components to restore operations quickly and avoid extended outages.
If your job depends on precision, our Fresno, CA, EDM wire cutting capabilities help you get there on time and within budget.

Materials We Work With for Wire EDM
Wire EDM applies exclusively to electrically conductive materials, which covers metals and alloys that push past the limits of traditional cutting. It achieves smooth, burr-free results free of thermal or mechanical stress, on everything from hardened steels and thin-walled sections to exotic alloys.
- Aluminum: Lightweight, corrosion-resistant, and widely machined for housings, brackets, prototypes, and high-performance parts.
- Stainless Steel: Strong, corrosion-resistant, and relied on for medical equipment, aerospace hardware, and food-safe parts.
- Brass & Copper: Valued for conductivity and machinability, common in contacts, connectors, and fluid-handling systems.
- Titanium: A blend of strength, low weight, and corrosion resistance makes it essential for aerospace, surgical, and performance uses.
- Tool Steels & Carbides: Able to handle hardened steels and tungsten carbide, standard for dies, molds, and long-lasting wear tools.
Among the range of CNC machining processes we offer, Wire EDM in Fresno, CA, stands out as a key method for meeting exact specifications. In some cases Wire EDM is the sole solution, in others it’s integrated with milling, turning, or related processes for optimal results.
Why Roberson Machine Company for Fresno, CA, Wire EDM Cutting?
With 20+ years of experience, Roberson Machine Company has supported industries where precision and reliability are non-negotiable. Our advanced CNC shop and dedicated wire EDM equipment let us pair technical expertise with reliable lead times, responsive support, and a wide array of value-added services for Fresno, CA, clients.
Beyond Wire EDM, our machining capabilities:
- 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
- Solar Panel Manufacturers
- Microscope Parts Precision Machining
Backed by advanced machining and expert support from start to finish, the Roberson Machine Company delivers surgical-grade wire EDM solutions. See our background and team, reach us online, or call 573-646-3996 to ask about Fresno, CA, Wire EDM services and machining capabilities.

