Seibu MM75B Wire EDM
High Speed-Precision

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Seibu’s MM75B wire EDM is built for large size heavy parts. The machine is designed to deliver high material removed rates while holding a pitch accuracy of ±2 microns. Machine castings are ground and hand scraped 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 can access all operations like a smartphone. 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 MM75B

Main Specifications


Axis travel X,Y,Z 29.5" x 19.7" x 11.0"
Max. workpiece weight 2,205 lbs.
Max. workpiece dimensions WxDxH 35.4" x 27.5" x 10.6"
Wire diameter .003" to .012"
Automatic wire threader standard
U-V axis travel UxV ±2.4” × ±2.4”
Max.taper angle ±10° @ 10.6”（±45°/1.6”： option)
Machine Dimensions WxDxH 114.4" x 103.5" x 85.4"
Machine Weight 11,243 lbs.



Selling Features



Optional Items



*Specifications are subject to change without prior notice.