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3/20/2017 | 1 MINUTE READ

Grinder Profiles Large-Diameter, Helical Cutters

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Holroyd Precision’s CS700E Tool Management Centre is a large-diameter tool-grinding machine designed for high-accuracy profile forms on finish milling cutters ranging to 700 mm in diameter.

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Holroyd Precision’s CS700E Tool Management Centre is a large-diameter tool-grinding machine designed for high-accuracy profile forms on finish milling cutters ranging to 700 mm in diameter. The machine incorporates automatic dressing stations to ensure integrity of the grinding wheel at all times. The stations are equipped to dress aluminum oxide, cubic boron nitride (cBN) and diamond grinding wheels. HSK-A160 arbors (as fitted to 8EX rotor milling machines) enable rapid wheel change-overs and further enhance accuracy.

Holroyd’s touchscreen programming system is said to provide complete control over production accuracies as well as on-screen modification of profile forms for the rapid evaluation of new profile shapes during the development and prototyping stages. Control via a menu-driven system is said to ease the profile modification process.

Also notable is capability for automatic touch probing of the tool profile during the grinding cycle. After probing, the actual tool profile is graphically superimposed over the theoretical profile and displayed within user-defined tolerance bands to ensure that all cutter blades are ground within tightly controlled limits. Indexing and multi-pass grinding/trimming cycles are also fully automated.

The machine can sharpen cutters with as many as 29 blades. The cutter indexing process is automatic. The cutter is located on an HSK-A160 arbor for precise positioning on the 8EX rotor milling machine or on other rotor millers employing the same arbor. The maximum profile height is 120 mm.

Designed with ergonomics in mind, the machine features a solid cast iron base for rigidity and thermal stability. Total machine guarding offers flood-cooling capability. Large sliding doors and separate rear and side access ease setup and workpiece loading. The CS700E is also equipped with a recirculating oil mist removal system.

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