ONA QX6
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 It may be a superseded or older model; the specifications below are as we last recorded them.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
Table Size
Accuracy
Repeatability
How much does the ONA QX6 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 QX6 is a large sinker EDM for heavy tooling. The listed figures give it 650 mm (25.6 in) of X travel and 450 mm (17.7 in) in both Y and Z, a 900 x 600 mm (35.4 x 23.6 in) table, a 2,000 kg (4,409 lb) workpiece limit and room for electrodes up to 200 kg (441 lb).
The electrode figure is the unusual one. A 200 kg (441 lb) allowance covers big one-piece graphite electrodes and multi-electrode frames with their holders, the kind of tooling used to sink a whole cavity in one setup instead of stepping a small electrode around the part. It only pays off if the shop can machine and lift electrodes that size.
Removal is listed at 400-500 mm3/min in graphite roughing and the finish at VDI 10 (Ra 0.4 um) achievable. Positioning accuracy is 2 um and repeatability 1 um. The QX4 is listed with 400 mm (15.7 in) of X and a 1,000 kg (2,205 lb) workpiece limit, which puts the QX6 at twice the load on the same accuracy figures.
Plan the installation early. The machine is 2,800 x 2,500 x 2,900 mm (110 x 98 x 114 in) and 6,500 kg (14,330 lb), and its dielectric tank takes approx. 800 L (211 gal). The generator is described as an ONA digital generator with adaptive spark control and the control as an ONA proprietary touchscreen CNC. Check the listed figures, the generator current in particular, against the machine's own documents.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 650 mm (25.6 in) |
| Y-Axis Travel | 450 mm (17.7 in) |
| Z-Axis Travel | 450 mm (17.7 in) |
| Table Size | 900 x 600 mm (35.4 x 23.6 in) |
| Max Workpiece Weight | 2,000 kg (4,409 lb) |
| Max Electrode Weight | 200 kg (441 lb) |
| Surface Finish | VDI 10 (Ra 0.4 um) achievable |
| Metal Removal Rate | 400-500 mm3/min (graphite roughing) |
| Positioning Accuracy | 2 um |
| Repeatability | 1 um |
| CNC Control | ONA proprietary touchscreen CNC |
| Generator | ONA digital generator with adaptive spark control |
| Dielectric Tank Capacity | Approx. 800 L (211 gal) |
| Machine Weight | 6,500 kg (14,330 lb) |
| Machine Dimensions | 2,800 x 2,500 x 2,900 mm (110 x 98 x 114 in) |
| Power Pack | 200 A |
| Table Size W | 31.5" |
| Table Size L | 47.2" |
| X | 39.4" |
| Y | 23.6" |
| Z | 19.7" |
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
- Electrodes up to 200 kg (441 lb) and workpieces up to 2,000 kg (4,409 lb)
- 650 mm (25.6 in) of X travel over a 900 x 600 mm (35.4 x 23.6 in) table
- Graphite roughing listed at 400-500 mm3/min
- Positioning accuracy of 2 um with repeatability of 1 um
- Approx. 800 L (211 gal) dielectric tank
Limitations
- Finish is listed at VDI 10 (Ra 0.4 um); no finer figure is given
- Needs a 2,800 x 2,500 mm (110 x 98 in) footprint and 2,900 mm (114 in) of height
- 6,500 kg (14,330 lb) plus a workpiece of up to 2,000 kg (4,409 lb), so the floor needs checking
Best For
Frequently Asked Questions
01
The listed maximum electrode weight is 200 kg (441 lb), holder included in whatever hangs from the head. The workpiece limit is 2,000 kg (4,409 lb). No maximum electrode dimensions are listed, so ask for them if you plan full-cavity electrodes.
02
650 mm (25.6 in) in X, 450 mm (17.7 in) in Y and 450 mm (17.7 in) in Z, over a 900 x 600 mm (35.4 x 23.6 in) table. The table is wider than the X travel, so the outer ends of a full-width block are out of reach without re-clamping.
03
Listed dimensions are 2,800 x 2,500 x 2,900 mm (110 x 98 x 114 in) and the weight is 6,500 kg (14,330 lb). The dielectric tank holds approx. 800 L (211 gal). Electrical supply and air requirements are not listed and have to come from the machine's documentation.
04
The QX4 is listed with 400 mm (15.7 in) of X and a 1,000 kg (2,205 lb) workpiece limit. The QX6 has 650 mm (25.6 in) of X and takes 2,000 kg (4,409 lb). Both tables give 2 um positioning accuracy, 1 um repeatability and a VDI 10 (Ra 0.4 um) finish.
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