ONA AX3
This model was not found in ONA Electroerosion's current lineup when we checked on 2026-10-03 . It may be a superseded or older model; the specifications below are as we last recorded them.
Key Specifications
X Travel
Y Travel
Z Travel
Accuracy
max workpiece size
max workpiece weight
How much does the ONA AX3 cost?
Estimated price range
Our best estimate for a sinker edm (ram edm) in this class — not a quote from ONA Electroerosion. Configuration moves it a long way.
Overview
The ONA AX3 is a die-sinking EDM with listed travels of 350 mm (13.8 in) in X and 250 mm (9.8 in) in both Y and Z. The largest workpiece is given as 550 x 400 x 250 mm (21.7 x 15.7 x 9.8 in) and 500 kg (1,102 lb), and the largest electrode as 300 x 300 mm (11.8 x 11.8 in).
Those three figures need reading together. An electrode at the 300 x 300 mm limit is wider than the 250 mm of Y travel, so big electrodes are positioned once and sunk, not moved around the part. The maximum workpiece height equals the Z travel at 250 mm (9.8 in). A tall block therefore leaves little stroke for the electrode and holder, and deep cavities belong in shallow workpieces on this machine.
On the finishing side the table gives Ra 0.10 um (4 uin) as achievable and a positioning accuracy of 2 um. The generator is named as the ONA Optima digital generator with adaptive pulse control, the dielectric is petroleum-based oil, and the control is an ONA proprietary CNC with a 19-inch touchscreen.
For installation, the listed dimensions are 1,900 x 1,800 x 2,200 mm (74.8 x 70.9 x 86.6 in) and the weight 3,200 kg (7,055 lb). There is no peak current or removal rate among the listed figures, so ask for the generator rating before judging roughing times, and confirm the rest against the machine's own documents.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 350 mm (13.8 in) |
| Y-Axis Travel | 250 mm (9.8 in) |
| Z-Axis Travel | 250 mm (9.8 in) |
| Max Workpiece Size | 550 x 400 x 250 mm (21.7 x 15.7 x 9.8 in) |
| Max Workpiece Weight | 500 kg (1,102 lb) |
| Max Electrode Size | 300 x 300 mm (11.8 x 11.8 in) |
| Surface Finish | Ra 0.10 um (4 uin) achievable |
| Positioning Accuracy | 2 um |
| Generator | ONA Optima digital generator with adaptive pulse control |
| Dielectric | Oil (petroleum-based dielectric fluid) |
| CNC Control | ONA proprietary CNC, 19-inch touchscreen |
| Machine Weight | 3,200 kg (7,055 lb) |
| Machine Dimensions | 1,900 x 1,800 x 2,200 mm (74.8 x 70.9 x 86.6 in) |
| X157 | Y11.7" |
| X | 15.7" |
| Y | 11.7" |
| Z | 9.82" |
Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.
Strengths & Limitations
Strengths
- Ra 0.10 um (4 uin) is listed as achievable, with positioning accuracy of 2 um
- Takes workpieces up to 550 x 400 x 250 mm (21.7 x 15.7 x 9.8 in) and 500 kg (1,102 lb)
- Electrodes up to 300 x 300 mm (11.8 x 11.8 in) are listed
- ONA proprietary CNC with a 19-inch touchscreen, paired with the ONA Optima digital generator and its adaptive pulse control
- Listed footprint of 1,900 x 1,800 mm (74.8 x 70.9 in) at 3,200 kg (7,055 lb)
Limitations
- Z travel of 250 mm (9.8 in) equals the maximum workpiece height, so tall parts leave little stroke for the electrode
- Y travel of 250 mm (9.8 in) is narrower than the 300 x 300 mm (11.8 x 11.8 in) maximum electrode
- No peak current or removal rate is listed, so roughing speed cannot be judged from the table
- Overall height of 2,200 mm (86.6 in) needs checking against doors and ceiling
Best For
Frequently Asked Questions
01
The listed maximum workpiece is 550 x 400 x 250 mm (21.7 x 15.7 x 9.8 in) at up to 500 kg (1,102 lb). The maximum electrode size is 300 x 300 mm (11.8 x 11.8 in). No electrode weight limit is given, so ask for it if you run large graphite or copper electrodes.
02
350 mm (13.8 in) in X, 250 mm (9.8 in) in Y and 250 mm (9.8 in) in Z. The Z figure is the same as the maximum workpiece height, so the stroke left for the burn shrinks as the part gets taller.
03
The table gives Ra 0.10 um (4 uin) as achievable and a positioning accuracy of 2 um. The finish is described as achievable, not guaranteed, so it depends on electrode material, burn area and generator settings. The generator is the ONA Optima digital generator with adaptive pulse control.
04
The listed machine dimensions are 1,900 x 1,800 x 2,200 mm (74.8 x 70.9 x 86.6 in) and the weight is 3,200 kg (7,055 lb). Allow extra room around those dimensions for the operator, tank access and electrode handling, none of which the table quantifies.
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