SJ-PLZ Series Flat FiIm Tape Extruder is designed and developed on the basis of foreign advanced technology， microprocessor control，fequency controI and silicone DC speed-adjustable controI etc．The main parts use foreign quality products，with enla rged L/D ratio and widen mixing smelt zone on the extruder screw pot that is specially processed with quality steel．The filter exchanging system with advanced foreign automatic belt shifting filter and the heating boa rd with advanced hot air oven make the main technical performance of this tape extruder reach international advanced level.This tape extruder features in performance of high speed and high-yielding，low power consumption，good framing quality ofthe fabric tube．The structu re ofthis tape extruder is of pleasing appearance，smooth running， flexible and reliable control，excellent workmanship， convenient operation and safe reliability can be used in various flat plastic tape forming conversions from the raw material ofthermoplastics，such as PP，HDPE，LDPE,etc．