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Nov 2015  
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Power drawbar available from Advanced Machine
OTT-JAKOB Power Drawbar
Tooling - OTT-JAKOB Power Drawbar

Advanced Machine & Eng. Co.

2500 Latham St.
Rockford, IL 61103



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January 2014 - Advanced Machine & Engineering Co. announces the availability of the OTT-JAKOB Power Drawbar.

Advantages of the OTT-JACOB Power Drawbar include:

Power off clamping

Intensified spring force

Compact design with minimal rotating mass

No load on spindle bearings during tool change

Low tool release force required

The cutting tool is held securely in the spindle taper with gripper fingers. These fingers are pulled into the taper with the spring pack of the power drawbar. The pull-in force is multiplied by the patented intensifying mechanism. The spring force applied to the clamping sleeve pushes the balls outward. The angle design of the clamping ring and cylinder shoulder increases the spring force 300%. The cam inside the spindle closes the gripper fingers and the tool is securely locked.

Loss or reduction in hydraulic pressure will not release the tool. The power off design requires pressure applied to the hydraulic piston and transmitted through the rod to push the clamping sleeve down. This unlocks the intensifying mechanism. After clearing the cam, the gripper fingers open and the face of the holder ejects the tool with a controlled stroke.

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