ONA EX A30

$100,000 - $160,000 Updated 2026-03-17

Key Specifications

X / Y / Z Travel

300 mm × 200 mm × 220 mm

U / V Travel

±50 mm / ±50 mm

Max Workpiece Weight

150 kg

Max Workpiece Height

180 mm

Wire Diameter Range

0.05 – 0.30 mm

Max Cutting Speed

180 mm²/min

Overview

The ONA EX A30 is a compact wire EDM machine engineered for high-precision small-format work in toolrooms, research laboratories, and medical device manufacturing environments. ONA, a Spanish EDM specialist with decades of experience in the sector, designed the EX A30 to deliver exceptional positional accuracy and surface finish quality in a machine that fits within the space and budget constraints of smaller operations.

The EX A30 features ONA's digital generator with intelligent gap control that automatically adapts pulse parameters to workpiece material, thickness, and cutting strategy. This adaptive capability reduces wire breakage incidents on complex contours and slender sections, which is particularly valuable when machining small precision parts where repositioning is costly and surface recast must be minimized.

ONA's wire threading system on the EX A30 is fully automatic and operates reliably through start holes as small as 0.3 mm in diameter, supporting multi-part programs and unattended operation. The machine's sealed dielectric system keeps consumable usage low and simplifies maintenance, an important factor in shops where EDM is not the primary process.

The control system features ONA's ONA-CNC with an intuitive touchscreen interface, built-in CAD/CAM integration, and a comprehensive technology database covering brass wire, coated wire, and specialty wire types across a wide range of workpiece materials. USB and Ethernet connectivity enable seamless program transfer and remote monitoring, and the machine's compact footprint allows installation in standard toolroom environments without special flooring requirements.

Full Specifications

Parameter	Value
X / Y / Z Travel	300 mm × 200 mm × 220 mm
U / V Travel	±50 mm / ±50 mm
Max Workpiece Weight	150 kg
Max Workpiece Height	180 mm
Wire Diameter Range	0.05 – 0.30 mm
Max Cutting Speed	180 mm²/min
Best Surface Finish	Ra 0.2 µm
Positioning Accuracy	±0.002 mm
Tank Dimensions (L × W)	540 mm × 400 mm
Machine Footprint	1,400 mm × 1,900 mm
Generator	ONA digital adaptive generator
Control	ONA-CNC with touchscreen
Table To Head Distance	675 mm (26.6 in.)
Travel Distance X Axis	600 mm (23.6 in.)
Travel Distance Y Axis	400 mm (15.7 in.)
Electrode Holder Travel	400 mm (15.7 in.)
Length	1070 mm (42.1 in.)
Height	450 mm (17.7 in.)
Width	770 mm (30.3 in.)
Machine Weight	4900 kg (10802 lbs.)
Max Weight	300 kg (661 lbs.)
Max Roughness	0.08 – 0.1 µm Ra (3.1 – 3.9 µin Ra)
Generator Intensity	100/200/400 A
Table Size	800 x 600 mm (31.5 x 23.6 in.)
Table Load Capacity	1500 kg (3306 lbs.)
Table Type	Drop Tank

Specifications sourced from ellisontechnologies.com — verified 2026-03-28

Strengths & Limitations

Strengths

Compact footprint and low installation requirements suit space-limited toolrooms and labs
Intelligent adaptive gap control minimizes wire breakage on intricate small-part geometries
Fully automatic wire threading through holes as small as 0.3 mm enables reliable unattended operation
ONA technology database provides pre-optimized parameters for rapid, accurate setup
Sealed dielectric system reduces consumable costs and simplifies maintenance

Limitations

Small travel envelope limits the machine to fine detail and small-format workpieces
Lower cutting speed versus mid-range wire EDM makes it less suited to production volumes
ONA service network is less widespread in North America than some Japanese or Swiss competitors

Best For

Precision toolroom components: punches, dies, mold inserts, and gauges Medical device parts requiring sub-micron surface finish and tight tolerances Research and development prototyping in hardened steel and exotic alloys Small batch production of complex profiles in carbide and titanium

Frequently Asked Questions

01 What is the smallest wire the ONA EX A30 can use?

The EX A30 supports wire diameters from 0.05 mm, enabling very fine detail cutting on small features where kerf width must be minimized.

02 How does the EX A30 compare to ONA's AX350?

The EX A30 is a smaller, more compact machine suited to fine small-format work, while the AX350 offers a larger work envelope and higher throughput for a broader range of part sizes.

03 Can the EX A30 cut in a submerged configuration?

Yes. The EX A30 supports full submerged cutting for optimal thermal stability and flushing, particularly important when achieving fine surface finishes below Ra 0.4 µm.

04 Does the ONA EX A30 support 4-axis (taper) cutting?

Yes. The U/V axes allow taper cutting up to ±50 mm, enabling production of tapered punch profiles and draft angles in die-making applications.

05 What CAM software is compatible with the ONA EX A30?

The ONA-CNC accepts ISO G-code from any major CAM system. ONA also provides dedicated post-processors for common CAM platforms including Mastercam, SolidWorks CAM, and Esprit.