Like the principle of a CNC lathe, FIXED-TURNING® is the machining of valve seats and/or any revolution shape by interpolation of axes.

Aside from the fact that it is the cutting tool that is spinning and not the part being machined itself, the machine spindle and machining heads allow to very simply machine the most difficult and most complex shapes and regardless of the quality of the valve seat material. While rotating, the cutting tool moves on its x and z axes to describe the profile to machine. The machining is performed in one direction and the number of passes is automatically defined by the program itself. The travel of the cutting tool is optimized according to the actual shape of the raw valve seat. A standard triangular cutter moves according to the axis of the carriage and the axis of displacement of the spindle. The whole rotates around the C-axis.

A powerful computer permanently calculates the optimal trajectory of the tool so that the cutting efforts are regular and reduced to a minimum. Every single shaving calculated from a fraction of a second to a fraction of a second is produced in such way that no fluctuation of the cutting efforts disrupts the balance and the flexibility of the spindle.

Thanks to FIXED-TURNING, perfect valve seat machining and a perfect seal between the valve seat and its valve are attained each and every time, the first time, without lapping.

Modern controls, latest technology, efficient,s simple, extremely user friendly, relieve s the operator of repetitive gestures, reduces fatigue and frees up attention for essential operations.

The interaction with the machine is user friendly and simple. The operator only needs to enter familiar dimensions such as the diameter of the valve, select a profile and the machine will instantaneously calculate everything else, including all roughing and finishing machining passes.

beyond precision, beyond mere user friendliness and added productivity, FIXED-TURNING® is the equivalent of thousands of custom form tools, all permanently packaged in one simple and affordable machine.

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