| from 1937 | Development of an extruder based on a screw pump and foundation of the extrusion technology division | 
ZSE 60 HP |
| 1976 | Foundation of the AMERICAN LEISTRITZ EXTRUDER CORPORATION in Somerville, NJ, USA as a subsidiary in the extrusion technology field | |
| 1992-1998 | Foundation of sales agencies in France, Great Britain, and Singapore | |
| 1998 | Introduction of the new generation of ZSE High Performance (HP) extruders with maximum screw revolutions of 1,200 rpm | |
| 2001 | Conversion of the Extruder division of LEISTRITZ AG into LEISTRITZ EXTRUSIONSTECHNIK GMBH and foundation of a new sales office in Italy |
|
| 2004 | Introduction of the new ZSE MAXX extruders together with the FLEXXline concept | 
ZSE 50 MAXX |
| 2007 | Market introduction of maXXtorque - the highest specific torque density for co-rotating twin screw extruders, worldwide. | |
