Clamp Force Gage

 for checking drawbar force

 

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Drawbar force is the measure of force being applied to a toolholder to keep it in contact with the spindle. The drawbar is a mechanical device used to apply clamping force to the toolholder. The drawbar is located out of sight and not easily accessed, often left unmonitored. The drawbar works by using Belleville Spring stack, gas systems, or other methods to generate the drawbar force. As the Belleville Springs begin to collapse and gas systems begin to leak, the drawbar loses force. Once drawbar force drops below 80% of its original amount it is time to have the drawbar system rebuilt. If drawbar force becomes too low, a cutter can be pulled out of the spindle; damaging the tool, the spindle, and the work piece. This results in issues with chatter, repeatability, short tool life, and poor finishes. Have you ever wondered why you can't run the same job on different machines, or tool life is better on one machine than another? It could be your drawbar.

Clampforce Spindle Adapters available in CAT/BT, HSK, Capto, KM Tooling, and for ATC (Automatic Tool Changers)

     


The ClampForce is a gage designed for checking drawbar force. It is the first universal gage on the market that is able to check all types of V-Flange, Capto, HSK, and KM spindles.

 

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