Cylindrical Grinder has Fanuc 21i digital control.

Press Release Summary:



Modular eco1000CNC allows quick setup and changeover, including long, shaft-type workpieces. It has digital control, 3-phase servo motor drive systems, and step-by-step programming. Cast iron V and flat guideways are cast directly into machine base and coated with abrasion-proof Granitan S200 for high vibration dampening and rigidity. Center height is 175 mm; between centers grinding length is 1,000 mm; and chuck capacity between centers is 80 kg.



Original Press Release:


eco1000CNC Tackles Long Jobs Effortlessly, Cost-Effectively


MIAMISBURG, OH - United Grinding Technologies, Inc. (UGT) announces the introduction of a new addition to its Studer line of high-performance cylindrical grinders, the eco1000CNC.

Modular design for quick setup and changeover, state-of-the-art digital control and drive systems and user-friendly step-by-step programming make the eco1000CNC a remarkably flexible solution to a wide variety of external cylindrical grinding applications, especially long, shaft-type workpieces. Center height is 175 mm. Between-centers grinding length is a full 1000 mm. Wheel size: 500 mm x 80 mm x 203.8 mm. Chuck capacity between centers is 80 kg.

The right-side wheelhead is orientable from 0° to 30° for straight and angular plunge grinding.

eco1000CNC overview

Digital direct-drive, three-phase servo motors with 40-mm diameter prestressed, precision ballscrews power the X-and Z axes. Cross slide X-axis travel is 285 mm at speeds ranging to 5,000 mm/min. Linear resolution is 0.0001 mm. Distance between slideways is 280 mm. Z-axis slide travel is 800 mm. Speed and linear resolution are respectively 10,000 mm/min and 0.0001 mm. Z-axis distance between slideways is 200 mm. Z-axis table tilts up to 8.5° for high-precision grinding of tapers.

Cast iron V and flat guideways are cast directly into the machine base and are coated with abrasion-proof Granitan S200 to provide high vibration dampening and superior rigidity. Patented guideway design prevents hydrodynamic effects found in conventional guideways and results in high load-bearing over the entire machine. The machine base of Studer-developed Granitan S103 delivers outstanding vibration dampening, rigidity and strength, as well as excellent chemical stability and thermal compensation.

Grinding spindle is powered by a 7.5 kW motor and has high-precision roller bearings for precise, high-resistance, maintenance-free operation. Peripheral speed up to 45 m/sec. Workpiece spindle, with high-precision roller bearings, handles grinding between dead centers as well as live grinding with revolving spindle. Precision control permits fine adjustment of cylindricity during grinding operations to +/- 40 um.

Guaranteed tolerance precision: 0.0004 mm on roundness and 0.0025 mm straightness deviation over a length of 650 mm.

Dressing

Wheel dressing intervals may be made by the operator following these simple methods: by pressing a pushbutton at any time during any grinding cycle; after a programmed number of specific machined parts or grinding operations; at programmed switchover points; at the programmed nominal size; after a specific number of strokes - or a combination of these, permitting the optimum solution for the specific grinding application.

Grinding wheel reference points are referred to as "T" numbers, and together with Studer grinding cycles, "T" numbers permit programming with nominal sizes. The actual value indication on the control LCD refers in each case to the programmed wheel reference point. Values of the grinding wheel shape are entered in a dressing dialog display at the control.

Control & programming

The eco1000CNC features state-of-the-art Fanuc 21i digital control and axis drive components. Machine operation, setup, changeover, dressing and programming of even complex parts are easily accomplished through the innovative, step-by-step Studer Pictogramming which allows operators simply to connect grinding cycles to one another and add necessary numerical values. The control then generates the machine program automatically. Advanced manual programming in G code is of course also possible. Programming is done directly at the machine or off-line and then downloaded to the machine control. Process parameters can be changed on the fly, while the machine runs, without affecting the workpiece program.

The eco1000CNC control package features proven application-specific Studer grinding cycles for diameters, shoulders (left and right), tapers (negative and positive) and contours.

Studer universal, external and internal grinders are supported by an expert team of grinding specialists and technicians drawing on more than 10,000 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, Jung, Maegerle, Schaudt and Studer, 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. Web: www.grinding.com.

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