Wire EDM Machining Service in China
KaiMi utilizes advanced WEDM (Wire Electrical Discharge Machining) technology to process a wide range of precision metal parts. You need to provide the CAD files of your product, and we will efficiently handle the rest—ensuring fast and seamless delivery from design to finished part.
- ✓High Precision Machining: Ultra-precision wire cutting capabilities
- ✓Wide Material Compatibility: Supports commonly used metals such as aluminum, steel, tungsten steel, and copper
- ✓Rapid Delivery: Products and parts can be delivered in as fast as 24 hours
- ✓Comprehensive Certifications: Certified under ISO9001:2008 and TS16949 quality management systems

What is Wire EDM?
WEDM (Wire Electrical Discharge Machining) is a high-precision cutting technology that uses the principle of electrical discharge erosion to process conductive materials. It is particularly suitable for machining complex contours, high-hardness materials, and precision components, and is widely used in industries such as mold making, aerospace, and precision part manufacturing.
As a leading manufacturer of precision molds and components, KaiMi is equipped with a wide range of high-precision machinery, including Wire EDM machines, precision EDM equipment, CNC machining centers, and optical profile grinders. We are fully capable of meeting our clients' strict requirements for high-precision and high-quality machining.
Our Wire EDM Capabilities
- 1. Machining Accuracy: Up to ±0.001 mm
- 2. Surface Finish: Achievable up to Ra 0.03
- 3. Minimum Wire Diameter: Ø0.03 mm
- 4. Processable Materials: Hardened steel, tungsten carbide, titanium alloys, copper, aluminum, magnetic steel, semiconductor silicon wafers, high-temperature alloys (e.g., Inconel), etc.
- 5. Maximum Machining Thickness: 250 mm
- 6. Customized Services: Support for small-batch prototyping (1–10 pieces) and large-scale production
- 7. Inspection Capabilities: Equipped with ZEISS CMM, NIKON vision measurement system, and NIKON height gauge
Our Wire EDM Equipment List
| Brand | Model | Origin | Qty | Min. Wire Ø | Tolerance | (Ra) | Travel (X × Y × Z) |
|---|---|---|---|---|---|---|---|
| AgieCharmilles | CUT2000 | Switzerland | 2 | 0.03 mm | ±0.001 mm | Ra 0.03um | 350 × 250 × 256 mm |
| Sodick Oil | AP250 | Japan | 2 | 0.03 mm | ±0.001 mm | Ra 0.03um | 250 × 150 × 120 mm |
| Sodick | AQ400LS | Japan | 1 | 0.10 mm | ±0.002 mm | Ra 0.15um | 400 × 300 × 250 mm |
| Sodick | ALN400GS | Japan | 1 | 0.10 mm | ±0.002 mm | Ra 0.15um | 400 × 300 × 250 mm |
| Seibu | M50A | Japan | 2 | 0.10 mm | ±0.002 mm | Ra 0.15um | 500 × 350 × 310 mm |
| Seibu | M50B | Japan | 2 | 0.10 mm | ±0.002 mm | Ra 0.15um | 500 × 350 × 310 mm |
| Seibu | M50HP | Japan | 2 | 0.10 mm | ±0.002 mm | Ra 0.15um | 500 × 400 × 310 mm |
| Seibu | M35HP | Japan | 2 | 0.10 mm | ±0.002 mm | Ra 0.15um | 350 × 300 × 230 mm |
Key Characteristics of Wire EDM
Main Advantages
1. High Precision
Tolerances can reach up to ±0.001 mm, ideal for high-accuracy molds and precision components.
2. Excellent Surface Finish
Surface roughness as fine as Ra 0.03 can be achieved, often eliminating the need for secondary polishing.
3. Complex Geometry Capability
Easily handles intricate shapes such as narrow slots, sharp internal corners, and complex profiles.
4. Suitable for Hard Materials
Effectively processes hardened steels, tungsten carbide, titanium alloys, and high-temperature alloys.
5. No Cutting Force or Deformation
As a non-contact process, it introduces no mechanical stress to the workpiece.
6. Low Electrode Consumption
Uses standard copper or molybdenum wire electrodes with minimal wear.
Limitations
1. Conductive Materials Only
The process requires electrically conductive materials and cannot be used for ceramics or plastics.
2. Lower Processing Efficiency
Slower cutting speeds compared to milling or laser cutting, especially for thick materials.
3. High Equipment and Maintenance Costs
Wire EDM machines are expensive and require regular, precise maintenance.
4. Minimum Kerf Width Constraints
The narrowest achievable cut width depends on the wire electrode diameter (typically 0.03 mm to 0.25 mm).
Applications of Wire EDM Components
Wire EDM components are widely used across various industries due to their high precision and capability to process complex geometries.
1. Mold Manufacturing
- • Stamping Dies: Punch and die inserts
- • Injection Molds: Sliders, cores, precision inserts
- • Die Casting Molds: Wear-resistant components
2. Precision Mechanical Parts
- • Gears and Worm Wheels
- • EDM Electrodes and Fixtures
- • Precision Fixtures and Assembly Blocks
3. Electronics & Semiconductor
- • Precision Connectors and Terminals
- • Microstructure Processing
- • Silicon wafers and substrates
4. Aerospace & Defense
- • Turbine Blade Root Slots
- • Structural Brackets
- • High-Temperature Alloys components
5. Medical Devices
- • Minimally Invasive Surgical Tools
- • Titanium and stainless-steel implants
- • Orthopedic Devices
6. Automotive & General Machinery
- • Precision Gears, Bushings, Locating Pins
- • Fuel Injector Parts
- • Hydraulic and Pneumatic Control Elements
Materials for Wire EDM
KaiMi's Wire EDM services efficiently process a wide range of conductive metal materials, meeting the demands of precision component manufacturing.
Tool Steels
Steel 1018, 4130, 4140, 4140PH, A36, 4340, SKD11, DC53, SKS3, SKH9, SKH51, 45#, 1.2379, etc.
Stainless Steels
SS 303, 304L, 316L, 416, 440C, STAVAX
Aluminum Alloys
Alloys 6061, 7075, 7050, 2024, 5052, 6063, MIC6
Copper
Copper 110, C10100
Titanium
TA0, TA1, TA2, TC4, TB5, etc.
Brass
HPb63, HPb62, HPb61, HPb59, H59, H68, H80, H90, etc.
Why Choose Our Wire EDM Service?
1. Ultra-High Precision
Achieve dimensional tolerances up to ±0.001 mm and surface roughness as fine as Ra 0.03 μm—ideal for demanding applications.
2. Advanced Equipment
Equipped with top-tier machines from AgieCharmilles, Sodick, and Seibu, supporting wire diameters as small as 0.03 mm.
3. Wide Material Compatibility
Capable of processing hardened steel, tungsten carbide, titanium alloys, Inconel, copper, aluminum, and other conductive metals.
4. Complex Geometry Machining
Easily handle fine features, narrow kerfs, sharp internal corners, taper cuts (up to ±30°), and intricate contours.
5. Strict Quality Control
In-house inspection with ZEISS CMM, NIKON optical systems, and height gauges ensures dimensional and geometric accuracy.
6. Fast Turnaround
Efficient setup and streamlined production allow delivery in as fast as 24 hours for urgent projects.