Super-strong mandrel

20 October 2017

At the recent EMO exhibition Hainbuch introduced its latest mandrel system, the Maxxos T211. With all the advantages of a hexagonal clamping mechanism, the segmented clamping bushing has an internal hexagon shape that fits perfectly onto the clamping pyramid.

The lubrication and consistent clamping forces ensure constant production flow boosting reliability and machine utilisation.

Hainbuch says due to the hexagonal pyramid clamp, maximum torque transmission can be achieved. In comparison to its Mando T211 mandrel, the new addition generates up to 155% more transmissible torque and up to 57% higher stiffness. This makes it possible to achieve higher machining parameters and consequently improve the yield of finished parts.

Greater process reliability is facilitated by the spacious layout between the clamping bush and the clamping pyramid. Even during the clamping process, this design prevents virtually any dirt or contaminants getting onto the surfaces. This reduces the frequency of maintenance tasks such as cleaning and lubrication and the subsequent time required for such non-productive activities. 

Overall, the Maxxos T211 mandrel has a clamping diameter range of 18 to 100mm and the clamping areas of each size are designed to overlap. The advantage of this configuration gives users that ability to choose from up to three mandrel sizes depending on the clamping diameter. With the Maxxos, the larger the mandrel; the greater its stability and rigidity. The aligned, segmented clamping bushings have a minimum concentricity of 0.01 mm and can even be supplied in a high precision version.