Heidenhain's TNC 640 Gen 3 CNC Expands Machining, Monitoring Capabilities


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Heidenhain TNC 640 Gen 3

The Gen 3 version of Heidenhain’s TNC 640 machine control is designed for three- to five-axis milling, turning and grinding operations with up to 24 axes. The CNC’s Gen 3 drives are said to provide higher spindle and axis dynamics while requiring less space in the electrical cabinet, resulting in reduced storage, mounting costs and service time. 

The TNC 640 now supports jig grinding and dressing of grinding tools. In addition, it can superimpose the tool axis with an optional reciprocating stroke, which is necessary for many grinding applications, the company says.

The 24" widescreen divides into two work areas, allowing users to display additional applications alongside the control screen. The control has HTML 5 integration as well as capabilities for displaying cameras in the work envelope.

Optimized Contour Milling (OCM) is said to expand the Dynamic Efficiency package’s trochoidal milling method to include any pocket shape and island. It allows for the use of high cutting values without overloading the tool and can be programmed directly on the control.