500T~3500T Aluminum Extrusion stem 

Aluminum Extrusion Stem for 500MT~95MN aluminum extrusion press, the extrusion stem is used for transferring the power of extrusion pressure and extrusion force from main cylinder of aluminum extrusion press to the dummy block to extrude the aluminum billet in the container.

The extrusion stem, which must be worked without bending and cracking under a high power needs to bear a pressure of up to 120 kg/mm2 depending on the model of aluminum extrusion press and the performed application.

The raw material is high pure H13 steel, forge treatment, 

Special order also is available.

Tips of aluminum extrusion stem

In the course of the extrusion stem would accumulate inner stress, this stress will produce a certain fatigue crack when the stress is big enough, if its bear the non-axial radial force, and it will break. Therefore, after the cumulative operating time of extrusion stem reaches 4500h, you have better to do a stress relief treatment, kept temperature at 430 ~ 480 ?12h, then furnace cooling down to below 50 ?, it will be good for extrusion working life.