ONA Diamond A400 CNC Wire EDM
Key Specifications
X/Y/Z Travel
Max Workpiece Weight
Wire Diameter Range
Max Cutting Speed
Surface Finish Ra
Taper Angle
Overview
The ONA Diamond A400 is a high-performance CNC wire EDM machine positioned for demanding precision manufacturing in aerospace, medical, energy, and advanced toolmaking applications. As part of ONA’s Diamond series, the A400 represents the company’s flagship wire EDM technology, combining a thermally compensated machine structure, advanced generator, and ONA’s ONAWIN Diamond control for the most challenging cutting requirements.
The Diamond A400’s generator employs ONA’s Digital Power Generator (DPG) technology with fully digital pulse control, enabling precise waveform shaping that maximizes cutting speed while minimizing recast layer depth on workpiece surfaces. This is particularly significant for aerospace component producers working with titanium, Inconel, and other alloys where surface integrity is a critical quality parameter governed by AMS and AS9100 specifications.
With X/Y travels of 400 x 300 mm and a generous 400 mm Z-height, the A400 handles tall aerospace structural components, thick die plates, and extrusion tooling with consistent accuracy from top to bottom of the workpiece. The machine’s submerged cutting with high-pressure flushing maintains dielectric cleanliness in the cutting zone, ensuring consistent surface finish and dimensional accuracy across the full cutting height.
ONA’s Diamond series machines are built to a higher mechanical and thermal specification than the company’s standard wire EDMs, with hydrostatic or linear motor drive options available for the highest-accuracy applications. The A400 is a preferred choice for aerospace and medical manufacturers who require NADCAP-capable surface integrity and traceability documentation from their EDM processes.
Full Specifications
| Parameter | Value |
|---|---|
| X/Y/Z Travel | 400 x 300 x 400 mm |
| Max Workpiece Weight | 700 kg |
| Wire Diameter Range | 0.05 – 0.33 mm |
| Max Cutting Speed | 380 mm²/min |
| Surface Finish Ra | Ra 0.05 µm |
| Taper Angle | ±30° at 100 mm height |
| Control System | ONA ONAWIN Diamond with 21-inch touchscreen |
| Machine Weight | Approx. 4,200 kg (9,260 lb) |
Strengths & Limitations
Strengths
- Digital Power Generator (DPG) minimizes recast layer for aerospace surface integrity requirements
- Wide taper cutting capability to ±30° suits complex die and aerospace component profiles
- Fine wire capability to 0.05 mm enables micro-feature cutting
- ONAWIN Diamond control with advanced process monitoring for quality documentation
Limitations
- High capital cost versus Asian wire EDM competitors with similar travel
- European manufacture means longer parts lead times in some global regions
- Advanced features require specialized ONA application training to fully exploit
Best For
Frequently Asked Questions
01
The A400’s Digital Power Generator produces minimal recast layer on cut surfaces, a critical requirement for aerospace parts under AMS and AS9100 standards. The machine also provides full process traceability data for NADCAP audits and quality documentation.
02
Yes. The Diamond A400 supports wire diameters as small as 0.05 mm for micro-feature cutting, allowing internal radii and slot widths in the 0.06–0.08 mm range for medical and precision instrument components.
03
The A400 excels on titanium alloys, Inconel, tungsten carbide, hardened tool steels, and polycrystalline diamond (PCD) tooling, making it a primary choice for aerospace, medical, and precision cutting tool manufacturers.
