ONA Electroerosion QX300

$220,000 - $320,000 Updated 2026-03-17

Key Specifications

X / Y / Z Travel

500 mm × 350 mm × 300 mm

U / V Travel

±80 mm / ±80 mm

Max Workpiece Weight

600 kg

Max Workpiece Height

270 mm

Wire Diameter Range

0.07 – 0.30 mm

Max Cutting Speed

380 mm²/min

Overview

The ONA Electroerosion QX300 is a precision wire EDM machine positioned in the mid-to-upper range of ONA's QX series, offering a larger work envelope than the QX100 while maintaining the series' reputation for exceptional surface finish quality and dimensional accuracy. The QX300 targets tool and die shops, aerospace component manufacturers, and precision subcontractors who need reliable fine-finish wire EDM capability on a broader range of part sizes.

The QX300 is built on ONA's proven digital generator platform with adaptive gap control that monitors discharge conditions on a pulse-by-pulse basis, adjusting pulse energy and frequency to maintain optimum cutting conditions regardless of material thickness variations, contour complexity, or wire speed. This intelligent control reduces wire breakage, improves cut consistency on complex profiles, and enables predictable cycle times that are essential for production planning.

Surface finish performance is a defining characteristic of the QX series. The QX300 achieves Ra values below 0.2 µm in multi-pass finishing mode, which is sufficient for high-precision punch-and-die sets, medical implant tooling, and precision gauge work without secondary polishing. ONA's anti-electrolysis generator mode protects workpiece surfaces from micro-crack formation during extended finishing passes, preserving the integrity of carbide and high-alloy tool steel workpieces.

The QX300's automatic wire threading system operates with high reliability across the machine's full Z-axis range, supporting unattended multi-part programs and overnight operation. The ONA-CNC control includes a full suite of programming tools, CAM integration, and ONA's technology database with optimized parameters for steel, carbide, aluminum, copper alloys, titanium, and specialty materials. Network connectivity and remote monitoring are standard, and the machine is designed for integration into connected factory environments.

Full Specifications

Parameter	Value
X / Y / Z Travel	500 mm × 350 mm × 300 mm
U / V Travel	±80 mm / ±80 mm
Max Workpiece Weight	600 kg
Max Workpiece Height	270 mm
Wire Diameter Range	0.07 – 0.30 mm
Max Cutting Speed	380 mm²/min
Best Surface Finish	Ra 0.15 µm
Positioning Accuracy	±0.002 mm
Tank Dimensions (L × W)	850 mm × 600 mm
Machine Footprint	2,200 mm × 2,100 mm
Anti-Electrolysis	ONA digital mode
Control	ONA-CNC with adaptive gap control

Strengths & Limitations

Strengths

Pulse-by-pulse adaptive gap control delivers consistent cuts on complex profiles and varying material thicknesses
Ra 0.15 µm fine-finish capability eliminates hand polishing on precision punch-and-die and medical tooling
Anti-electrolysis mode protects carbide and high-alloy steel surfaces during extended finishing passes
600 kg workpiece capacity and 500×350 mm travel cover a broad range of production part sizes
Automatic wire threading across full Z-axis travel enables reliable unattended overnight production

Limitations

Mid-to-upper pricing requires sufficient precision workload to justify versus entry-level wire EDM alternatives
Maximum cutting speed of 380 mm²/min is adequate for most toolroom work but lower than high-speed production wire EDM
ONA service support network in some regions may be less accessible than Japanese competitor alternatives

Best For

Precision punch-and-die sets in hardened tool steel requiring Ra 0.2 µm or finer surface finish Aerospace structural components in titanium and nickel alloys where surface integrity is safety-critical Medical device tooling and implant components requiring fine finish and dimensional accuracy Mid-size mold inserts, ejector pins, and core pins in carbide and P20 tool steel

Frequently Asked Questions

01 How does the QX300 differ from the QX100?

The QX300 offers a significantly larger work envelope (500×350×300 mm vs. the QX100's smaller travel), higher workpiece capacity (600 kg), and a higher maximum cutting speed, making it the choice when part sizes exceed QX100 capacity or when higher throughput is required.

02 What surface finish does the QX300 achieve?

The QX300 achieves Ra 0.15 µm in fine-finishing multi-pass mode, which is sufficient for high-precision tooling applications without secondary polishing on most tool steel and carbide workpieces.

03 What is ONA's anti-electrolysis mode?

ONA's anti-electrolysis mode applies bipolar pulse technology that suppresses the electrolytic corrosion that occurs on metal surfaces during prolonged EDM finishing. This protects carbide and high-alloy steel from micro-cracking and surface layer damage, improving fatigue resistance in critical tooling.

04 Can the QX300 cut titanium and Inconel?

Yes. The adaptive gap control and technology database on the QX300 include parameters optimized for titanium, Inconel, and other aerospace alloys, which require careful pulse energy management to avoid recast layer issues.

05 Does the QX300 support 4-axis taper cutting?

Yes. The U/V axes provide ±80 mm of taper cutting capability, enabling complex tapered punch profiles, angled cutting, and matching taper geometry for precision die sets.