ONA NX8
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 It may be a superseded or older model; the specifications below are as we last recorded them.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
Accuracy
x y z travel
table size l w
max workpiece weight
max electrode weight
max cutting speed steel
How much does the ONA NX8 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 NX8 is a large-travel die-sinking EDM with a listed 100 A generator. Travels are 600 mm × 450 mm × 500 mm in X, Y and Z over a 900 mm × 600 mm table, and the machine takes workpieces up to 1,000 kg and electrodes up to 80 kg.
The listed figures describe a rougher that can also finish. Maximum cutting speed in steel is given as 1,100 mm³/min, and 100 A of peak current is what makes that rate possible with broad graphite electrodes. The best surface finish listed is Ra 0.2 µm, so the same machine can take a cavity from roughing to a fine technical finish, though not to a mirror.
Z stands out at 500 mm, longer than the Y travel. That stroke suits deep cavities and tall electrodes, and it is why the 80 kg electrode limit matters: a long graphite electrode with its holder gets heavy quickly. The axes run on hardened and ground box ways, a guideway type chosen for damping and load capacity over speed. Positioning accuracy is listed at ±0.003 mm.
The dielectric is hydrocarbon oil with dual-pump flushing, electrode materials are graphite, copper and copper-tungsten, and the control is the ONA-CNC expert system. No machine weight or tank size is listed, so get both from the machine's documents and confirm the listed figures at the same time.
Full Specifications
| Parameter | Value |
|---|---|
| X Y Z Travel | 600 mm × 450 mm × 500 mm |
| Table Size L W | 900 mm × 600 mm |
| Max Workpiece Weight | 1,000 kg |
| Max Electrode Weight | 80 kg |
| Max Cutting Speed Steel | 1,100 mm³/min |
| Best Surface Finish | Ra 0.2 µm |
| Generator Peak Current | 100 A |
| Electrode Materials | Graphite, copper, copper-tungsten |
| Dielectric | Hydrocarbon oil with dual-pump flushing |
| Positioning Accuracy | ±0.003 mm |
| Guideway Type | Hardened and ground box ways |
| CNC Control | ONA-CNC expert system |
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
- 100 A peak current with a listed maximum cutting speed of 1,100 mm³/min in steel
- 500 mm of Z travel for deep cavities and tall electrodes
- Hardened and ground box ways, with positioning accuracy listed at ±0.003 mm
- Hydrocarbon oil dielectric with dual-pump flushing
- Takes 1,000 kg workpieces and 80 kg electrodes on a 900 mm × 600 mm table
Limitations
- Best listed finish is Ra 0.2 µm, short of a mirror finish
- X and Y travel of 600 mm × 450 mm reach only part of the 900 mm × 600 mm table
- Machine weight, footprint and tank size are not listed
Best For
Frequently Asked Questions
01
The listed maximum cutting speed in steel is 1,100 mm³/min, from a generator with 100 A peak current. A maximum rate like this applies to roughing with a large electrode and good flushing; small electrodes and finishing passes run far slower on any sinker.
02
Travels are listed as 600 mm × 450 mm × 500 mm in X, Y and Z, and the table as 900 mm × 600 mm. Workpieces can weigh up to 1,000 kg and electrodes up to 80 kg. No work tank dimensions are given.
03
Positioning accuracy is listed at ±0.003 mm and the best surface finish at Ra 0.2 µm. The guideways are hardened and ground box ways. Electrode materials named in the table are graphite, copper and copper-tungsten.
04
On the listed figures the NX8 has the longer axes: 600 mm × 450 mm × 500 mm of travel and a 900 mm × 600 mm table, against 450 mm, 350 mm and 400 mm and a 700 mm × 500 mm table for the NX 10. Check both sets against the machines themselves before choosing between them.
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