性能与结构：

SJSZ系列锥形双螺杆挤出机，配以相应的螺杆和辅机，可将各种热塑性塑料特别是硬聚氯乙烯粉料直接挤出成管、板、片、膜及异型材等，也可完成对各种塑料的改性及粉料造粒过程。
本机采用直流电机，可控硅无级调速，设有过载保护和故障报警、螺杆芯部油循环恒温、机筒油冷却，并装有真空排气管装置和定量喂料装置。

FuncitionsConstruction:
The series Extruders with apporpriate screws,diesother auxiliaries can directly convert thermoplastic expecialy RPVC powder into Pipe,plate sheet,filmprofile,and also Provide function of modifyingPelleting.
The extruders drived by D.C motor with a thyristor to stepless regulate.It also equiped with the over-load prtectionstoppage alsrmingsystem.The screws corethe outside of barrels are cooled by the circulation of oil,ther fuctions include vacuum ventingforced feeding.

主要技术参数Main Technical Standards ：