Multi-Axis Grinding Center offers flexible operation.

Press Release Summary:

Equipped with automatic tool changer, MFP 50 features wear-free, hydrostatic wrap-around guideways in Y-axis and Siemens Sinumerik 840D digital controls. Unit employs symmetrical traversing sliding column design for static, dynamic, and thermal stability. Capable of up to 7-axis grinding of parts in horizontal, vertical, or inclined orientations, center features rapid traverse rate of 790 ipm on X, Y, and Z axes with respective travels of 500, 660, and 660 mm.

Original Press Release:

New 7-Axis MFP 50 with ATC Offers Flexibility, Precision

MIAMISBURG, OH - United Grinding Technologies, Inc. (UGT) announces the introduction of a new addition to its Magerle line of high-performance grinding centers, the MFP 50.

According to Chris Stine, vice president, "The MFP 50's hydrostatic guideways and automatic tool changer make this machine a truly agile and flexible grinding center."

MFP overview
The new MFP is the smallest in the Magerle machine line and offers a great number of various configurations, depending on the application. The compact and symmetrical traversing sliding column design, together with precision preloaded ball screws and wide hydrostatic guideway bearings, ensures high static, dynamic and thermal stability.

An important feature of the MFP 50 are its guide ways. Magerle-developed hydrostatic wrap-around guide ways utilized in the Y-axis are 100 per cent wear-free and offer high rigidity and load capacity, optimum smoothness and vibration dampening and maximum precision and process reliability. The modular machine components in multiple thermal stabilized sandwich construction and controlled hydrostatic return oil flow provide proper temperature distribution to guarantee static, dynamic and thermal stability.

The movements of the 3 main part movement axes are accomplished by the machine table. An additional 2- or 3-axis table-mounted indexer allows various orientations on the same machine base -horizontal, vertical or inclineable - permitting up to seven axis grinding.

All main axes of the MFP 50 can rapid traverse at 20,000 mm/min (790IPM). X-axis travel is 500 mm, Y-axis spindle travel is 660 mm and Z-axis travel is 660 mm.

Direct drive grinding spindle is powered by a 25 kW (optional 50 kW) water-cooled motor, and spindles speeds range up to 10,000 RPM.

Other features include linear glass scales on all axes with a resolution 0.001 mm, precision pre-loaded ball screws, hydrostatic guideways on Y-axis and linear bearing guideways on all other axes.

Tool changing
The new MFP 50 includes an integrated automatic tool changer which can switch wheels in eight seconds using a swing arm configuration. Maximum tool dimensions are 300 mm x 60 mm x 76.2 mm, and changer capacity is tools is 20 - 10 for wheel diameters smaller than 190 mm, and six for wheel diameters up to 280 mm. A reliable HSK-80 wheel flange system offers rigidity and precision needed for close tolerance parts with high surface finish requirements. Tool options include vitrified CBN, plated CBN, conventional grinding wheels and various other metal cutting options.

Continuous dressing
The system is equipped with an overhead dressing unit, which allows for conventional, in-process, or continuous dressing of wheels. It's unnecessary to reset the tool; every time a wheel is changed it is positioned against the spindle bearings, allowing optimal wheel position and dressing by tool offset. Cross travel on the 2T-axis cross stroke for fine adjustment and CNC profile dressing of wheel shape features is 152 mm.

The MFP 50 features state-of-the-art Siemens Sinumerik 840D digital controls. Machine operation, setup, changeover, dressing and programming of even complex parts are easily accomplished through the operator-friendly control. The panel swivels to suit all functional and ergonomic requirements. This new MFP 50 increases the variety of applications to a great extent by increasing the number of operations that can be accomplished without operator interference.

Typical applications include turbine vanes and blades, gear shifting shafts, rocker arms, small turbine and compressor blades, machining both sides of fir tree and root shank faces, shroud and z-notch profiles - both sides and slots if required. The automatic tool changer allows the use of the right abrasive for each feature - plated CBN for radial slots, vitrified CBN for blade W-forms, conventional abrasives, for radial slots and blade fir tress.

Founded in 1941 in Uster, Switzerland, Magerle grinding systems are today supported by an expert team of grinding specialists and technicians drawing on hundreds of machine installations and a worldwide support and service network.

United Grinding Technologies Inc., the North American arm of the Korber-Schleifring Group and supplier of such venerable nameplates as Blohm, Ewag, Jung, Magerle, Studer, Studer Mikrosa, Studer Schaudt and Walter, is a global leader in grinding technology and has built a reputation for industry-leading innovation and unparalleled service and support.

For more information, contact United Grinding Technologies, Inc.; 510 Earl Blvd., Miamisburg, OH, 45342. Tel: 937/847-1222. Fax: 937/859-1115.

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