Now available from the exclusive UK and Eire agent, Warwick Machine Tools, the new range of ONA AV wire EDM machines is part of the Spanish company’s strategic plan to improve current product competitiveness with the introduction of high performance ‘Premium’ machines that was initially established with the recent launch of the highly capable QX die sink CNC EDM range.
A comprehensive range of ONA AV models are available. Two are compact machines; the ONA AV25 model with axis travels of 400 x 300 x 250 mm in X, Y and Z respectively, and the larger ONA AV35 model with travels of 600 mm in X, and 400 mm in Y and Z. Both models have U-V travels of 120 by 120 mm. Designed to be extraordinarily compact the new machine layout reduced installed floorspace by around 20 per cent compared to existing models of similar dimensions.

For ease of operation ONA has developed a new CNC with CAD/CAM for the AV range that exceeds the demands of the most advanced programmer and at the same time offers an extremely simple, user-friendly interface. The CNC makes it possible to control up to 8 axes simultaneously, has CAD/CAM incorporated and boasts a 23 inch touchscreen monitor. A 3D viewer graphically displays the workpiece, the cutting position and wire path, while 3D set up with optional touch probing is also supported.

Improved precision and safety levels are offered as the AV range incorporates new corner and profile control systems, linear rulers with a resolution of 0.1 µm and an exclusive protection system able to detect impacts of just 0.8 kg (8 N).

AV machines feature a new design wire threading system with enhanced functions, such as rethreading while submerged in a cut gap on a workpiece up to 150 mm thick. Hole search during the threading operation is another key function. The machine searches, where necessary, up to 10 successive threading attempts on a circular trajectory around a predetermined point. Automated wire threading with thin wires of just 0.07 mm diameter can be achieved.

Environmental considerations are also prominent factors for customers considering investment in high performance manufacturing equipment. ONA has a longstanding history in this field, including the designing and fitting of the first 100 per cent ecological filter for wire EDM machines (patented in 1993) and the implementation of an ISO14001-certified environmental management system in 2001. The new AV machines continue this tradition with a new advanced energy-management system that reduces consumption by up to 30 per cent during the cutting process, as well as reduced wire consumption thanks to new EcoCutting technologies.

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