Seibu MEX15: Ultra Precision

Precision Wire EDMs +/- 0.5µm pitch positioning accuracy


Seibu’s MEX15 wire EDM is built to conquer the impossible in wire EDM precision. The machine is designed to deliver ultra-precision by holding a pitch accuracy within ±0.5 micron. It has the ability to achieve roundness within ±0.5 microns, straightness accuracy of 0.1 microns and can thread wire as small as 0.001 inch. The Machine is available in Water and Oil Specs. Machine castings are ground and hand scrapped for complete flatness. Guideways are checked for flatness, lasered for straightness and test cuts are performed on all machines which are then checked on a CMM for accuracy resulting high precision parts. The new Smart NC (Fanuc Control) 21.5” touch panel, high speed control contains over 4,000 cutting conditions and can access all operations like a smartphone. The CAM-Station option is loaded with a new CAM function, which enables a CAD file to be converted to NC code. The control has been customized to show more information so operators can check the necessary cutting data or maintenance work on any screen at any time.

Seibu MEX15: Ultra Precision

Main Specifications


Axis travel X,Y,Z 6” x 6” x 4.7”
Max. workpiece weight 26.4 lbs.
Max. workpiece dimensions WxDxH 7” x 6.5” x 4.7”
Wire diameter 0.001” – 0.006” (0.004” is standard)
Automatic wire threader standard
U-V axis travel UxV ±2.4° x ±2.4°
Max.taper angle ±10°
Machine Dimensions WxDxH 68” x 68.3” x 73”
Machine Weight 8,598 lbs.



*Specifications are subject to change without prior notice.