本发明介绍了金属挤压机的新型挤压筒装置。此挤压筒由几乎占全长的主挤压筒和较短的辅助挤压筒构成,而辅助挤压筒安装在主挤压筒的前面。由于可将两个以上的辅助挤压筒分别安装在位置可变的支持套的支持臂中,因此,各辅助挤压筒可依次转到主挤压筒的前面。这是此种挤压筒的显著特点。 The present invention describes a new type of extrusion cylinder device for a metal extruder. The extruder barrel consists of a main extruder barrel which occupies almost the entire length and a shorter auxiliary extruder barrel which is mounted in front of the main extruder barrel. Since more than two secondary extrusion sleeves can be respectively mounted in the support arms of the positionally displaceable support sleeves, the respective secondary extrusion sleeves can in turn be pivoted to the front of the main extrusion cylinder. This is a remarkable feature of this extrusion barrel.