500T~3500T Extrusion stem for Aluminum Extrusion Press

Extrusion stem is one of part of aluminum extrusion press which is used for transferring the power from the main cylinder to the extrusion billet like a column.

The exyrusion 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 H13 steel

Special order also is available.

Tips of 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.