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





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.
Related Content
-
Continuous Improvement and New Functionality Are the Name of the Game
Mastercam 2025 incorporates big advancements and small — all based on customer feedback and the company’s commitment to keeping its signature product best in class.
-
6 Machine Shop Essentials to Stay Competitive
If you want to streamline production and be competitive in the industry, you will need far more than a standard three-axis CNC mill or two-axis CNC lathe and a few measuring tools.
-
5 Reasons Why You Should Know How to Write Custom Macros
Custom macros enhance what can be done in G-code programs, giving users the ability to code operations that were previously not possible.