EDM & Wire EDM
TDX Manufacture or machine the metal parts you want with advanced wire EDM machines. You transfer the CAD data of the product and we complete the production.
● High Precision: Standard dimensional tolerance of ±0.0001
● Various materials: aluminum, steel, etc.
● Get your products and parts ready in as fast as 24 hours
● Certifications: ISO9001:2008, TS16949
Advantages of EDM and Wire EDM
Minimal Heat-Affected Zone
EDM and Wire EDM provide unmatched precision for complex geometries and tight tolerances, often within a few microns.
Ability to Machine Hard Materials
They are ideal for hard materials like tool steels, titanium, carbide, and hardened alloys, perfect for aerospace, automotive, and medical industries.
Complex Geometries and Intricate Features
Both excel at complex shapes, sharp edges, and intricate features, including internal cavities, undercuts, and fine holes. Wire EDM is great for narrow slots and precise contours, while EDM is ideal for 3D shapes with tight tolerances.
No Mechanical Stress on Workpieces
EDM and Wire EDM eliminate the risk of distortion, warping, or tool wear, valuable for delicate or thin-walled components.
Minimal Heat-Affected Zone
They generate minimal heat, keeping the heat-affected zone to a minimum, preventing material deformation and preserving workpiece quality, even with heat-sensitive materials.
High Flexibility in Materials and Shapes
EDM and Wire EDM are versatile with a wide range of materials, suitable for simple parts and highly complex, customized components, ideal for prototyping and low-volume production. This list highlights the key strengths of EDM and Wire EDM, showcasing their value across various industries and applications.
Our EDM Capabilities
EDM
Relying on precise electrical discharge machining to manufacture precision parts with features that are difficult for CNC machining, such as sharp corners, thin walls, deep grooves, and narrow cavities
Wire EDM
WEDM can efficiently and accurately machining parts with hard materials and thorough structures such as elongated holes, deep cavities, and narrow slits.
Electrical Discharge Machining Tolerances
| Feature | Standard Tolerance | Tightest Achievable |
| Linear Dimensions | ±0.01 mm (±0.0004″) | ±0.005 mm (±0.0002″) |
| Hole Diameter | ±0.015 mm (±0.0006″) | ±0.008 mm (±0.0003″) |
| Slot Width | ±0.02 mm (±0.0008″) | ±0.01 mm (±0.0004″) |
| Edge Radius / Corner | R0.2 mm typical | R0.1 mm possible |
| Surface Finish (Ra) | 1.2-3.2 µm | Down to 0.8 µm with polishing |
| Standards Applied | ISO 2768-m / ISO 2768-f | ISO 286, DIN ISO 1302 etc. |
Wire EDM Tolerances
| Feature | Standard Tolerance | Tightest Achievable |
| Linear Dimensions | ±0.005 mm (±0.0002″) | ±0.002 mm (±0.00008″) |
| Hole/Opening Diameter | ±0.006 mm (±0.00024″) | ±0.0025 mm (±0.0001″) |
| Slot Width | ±0.008 mm (±0.0003″) | ±0.003 mm (±0.00012″) |
| Min. Corner Radius | R0.05-0.1 mm typical | Down to R0.02 mm |
| Surface Finish (Ra) | 0.6-1.6 µm | As low as 0.2 µm (multi-pass) |
| Standards Applied | ISO 2768-f, GB/T 1804-2000 | ISO 1302 for surface finish |
Industries Served by EDM and Wire EDM
Taidexing ’s EDM and Wire EDM services deliver precision contours, tight gaps, and fine features on hard and complex materials. Ideal for parts with thin walls, deep cavities, or tight tolerances, EDM & Wire EDM support prototype and production workflows across advanced engineering sectors.
Aluminum Alloys
Stainless Steel
Carbon & Alloy Steel
Copper & Brass
Titanium Alloys
Engineering Plastics
High-temperature Alloys
Specialty Materials
Aluminum Alloys
Common Grades： 6061-T6, 7075-T6, 5052, 2024
Key Applications: Equipment housings, heat sinks, structural brackets, automation frames Benefits:
• Supports anodizing, sandblasting and various surface finishes
• Low density for lightweight structural designs
• Stable precision for prototype & mass production
Stainless Steel
Common Grades： 304, 316L, 17-4PH
Key Applications: Medical components, fluid valves, fixture parts, food-grade structures Benefits:
• Superior corrosion resistance
• Available for passivation, electro-polishing treatment
• Maintains stability under harsh working conditions
Carbon & Alloy Steel
Common Grades： 45# Steel, 4140 Alloy Steel, S136
Key Applications: Transmission shafts, gear parts, mold inserts, heavy-load fixtures Benefits:
• Supports quenching, tempering and other heat treatment
• Excellent tensile strength for heavy-load scenarios
Copper & Brass
Common Grades： C11000 Pure Copper, H59 Brass, C36000
Key Applications: Conductive terminals, heat conduction modules, threaded fittings Benefits:
• Excellent ductility and chip removal performance
• Plating and polishing available for enhanced surface performance
Titanium Alloys
Common Grades： Ti-6Al-4V
Key Applications: Medical equipment, aerospace components, precision marine parts
Benefits:
• Low density & high strength-to-weight ratio
• Outstanding resistance to chemical corrosion
Engineering Plastics
Common Grades： PEEK, POM, PA66, PTFE, PET
Key Applications: Insulation components, wear-resistant bushings, non-magnetic structural parts
Benefits:
• Light weight, corrosion-free and self-lubricating
• No surface rust, suitable for low-friction assembly
High-temperature Alloys
Common Grades： Inconel 718, Hastelloy
Key Applications: Energy equipment, high-temperature sensor structural parts
Benefits:
• Resists deformation and oxidation under extreme heat
• Reliable long service life under high-temperature working conditions
Specialty Materials
Common Options： Industrial Ceramic, Composite Materials
Key Applications: Semiconductor fixtures, special insulation components
Benefits:
• Customized processing for special working conditions
• Unique insulation, wear or high-temperature properties
ISO Certified Quality You Can Trust
We are committed to upholding the highest industry standards. To ensure quality and excellence, we have proactively obtained renowned certifications from trusted organizations.
Why Choose Taidexing
Fast
Lead time as fast as 3 days, accelerating your R&D and production progress, easily meet tight deadlines.
Precision
Tolerances as tight as 0.005mm, rich experience with advanced 5-axis CNC machines, mill-turn machines, and precision grinding machines, meets a variety of tolerance requirements.
Cost-effective
According to your functionality and quantity requirements, develop the optimal manufacturing process, combined with efficient self-owned factories to achieve optimal performance and cost.
One-stop Solution
From CNC machining to aluminum extrusion and heat treatment to surface finishing, from prototyping to mass production, easily and efficiently customize various parts.
Strict Quality Control
ISO 9001 quality management system certification, equipped with various quality inspection instruments including Zeiss coordinate, process and results can be controlled.
Engineering & DFM Support
Our engineers collaborate from the start — optimizing designs for manufacturability, improving strength-to-weight ratios, and reducing cost through smarter machining strategies.
Electrical Discharge Machining Resources
CNC Machining Cost: How to Save Up to 30% on Your Next Project
2026-07-15
FastPreci vs Xometry: Who Provides Best Manufacturing Solution?
2026-07-15
Wire EDM Machining: Tolerances Down to ±0.005 mm
2026-07-15
How 2D & 3D Drawings Affect CNC Machining Cost and Lead Time
2026-07-15
FAQs
How can I get a quote, and what files do you need?
You can upload your 2D drawings and 3D CAD files (STEP, IGES, or DXF formats) via our [Quote Request Form]. The more details you provide (material, quantity, finish, tolerance), the faster and more accurate your quote will be. Our engineers usually respond within 24 hours.
How accurate are your EDM and Wire EDM machines? Can you guarantee tolerances?
Our Wire EDM machines routinely achieve tolerances of ±0.005 mm, and down to ±0.002 mm for critical features. Sinker EDM typically maintains ±0.01 mm. We use high-precision CMM and toolmakers’ microscopes for inspection, and a full dimensional report can be provided on request.
What is your standard lead time for EDM and Wire EDM projects?
Typical lead time ranges from 3 to 10 working days, depending on part complexity, quantity, and surface finishing requirements. We offer expedited services for urgent prototyping or low-volume production needs — just let us know your deadline upfront.
What types of materials can you work with in EDM and Wire EDM?
We work with a wide range of conductive materials, including tool steel, stainless steel, Inconel, titanium, tungsten, and carbide. Wire EDM requires the material to be electrically conductive, while sinker EDM may be used for certain advanced composites and ceramic-coated surfaces. If you have a special alloy in mind, we’re happy to run feasibility checks.
What’s the difference between EDM and Wire EDM, and how do I choose the right process for my part?
EDM (also called Sinker EDM) is ideal for creating deep cavities, complex shapes, and fine internal features, especially in hard metals. Wire EDM is best for precise, narrow kerf cuts, internal contours, and parts requiring tight tolerances. If you’re unsure, our engineers will help you select the best process based on your CAD files and functional requirements.
How to Work With US
Upload Design
Submit your 3D drawings, processes, materials, quantities and other technical requirements.
DFM Analysis and Quotation
We will analyze the manufacturing feasibility based on your design and requirements and provide a report and quotation within hours.
Order Confirmation
Issue a purchase order or make a payment after DFM and quotation confirmation.
Parts Shipping
We will update you on the progress during the production and send it out after quality check, as soon as 3 days.
Contact Information
Email: liu.ji@cq-taidexing.com
Address: No. 2 Xishan Road, Biquan Subdistrict, Bishan District, Chongqing City
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