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。Funcitions and Construction:The series Extruders with apporpriate screws,dies and other auxiliaries can directly convert thermoplastic expecialy RPVC powder into Pipe,plate sheet,film and profile,and also Provide function of modifying and Pelleting.The extruders drived by D.C motor with a thyristor to stepless regulate.It also equiped with the over-load prtection and stoppage alsrmingsystem.The screws core and the outside of barrels are cooled by the circulation of oil,ther fuctions include vacuum venting and forced feeding.主要技术参数Main Technical Standards ：规格SPECIFICASJSZ50SJSZ55SJJZ65SJSZ80螺杆直径(mm)Diameter of screws(mm)51/10555/11065/120 65/13280/156螺杆数量Quantity of screws2222螺杆转向REV direction of screws异向向外Turing outwards with different direction螺杆转速(r/min)REV speed of screws(r/min)1-371-401-34.71-36.9螺杆有效工作长度(mm)Effective length of screws(mm)1065120014401800主电机(kw)Main motor(kw)22273755机筒加热功率(kw)Barrel heating power(kw)10182436生产能力(kg/h)Produtivity(kg/h)135150250450机器中心高度(mm)Centre height of machine(mm)1000净重kgNet weight(kg)2500350040005000外形尺寸（长×宽×高）Dimensions(L×W×H)3235×1100×21573620×1050×21574235×1520×2450