Hilti Aktiengesellschaft

Konrad Lieb

Oliver Koslowski

A process for controlling and a core drilling machine () having an electrical motor () for rotational drive of a core drill bit () having cutting edges () oriented axial to a work piece (), a feeding means () for generating the feed of the core drill bit () against the work piece () and having a controller () for controlling, relative to a first one-to-one control parameter, detected by a sensor (') for electrical power consumption (P) or torque (M). A force sensor (&#x2032;) is connected to the controller () for detecting the contact pressing force (F) of the core drill bit () as the second control parameter.

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Landsberg, Germany

Konrad Lieb