APPLICATION: The model fb441 is a new product improved on the base of b461,which is used for the spinning process of pure wool and chemical fiber blends.It is a rear process for the high counts yarns spinning. MAIN SPECIFICATION: 1)type of machine and heads:left,18 heads(36 balls),24 heads(48 balls). 2)head distance:450mm 3)type of feeding: balls feeding: diameter of ball:φ180?95mm cans feeding:48-96 cans,diameter of cans:φ300?90mm the max feeding slivers of each head:2??=12 4)doubling:2 or3 5)weights of feeding:max weight of each sliver:2g/m 6)delivery sliver:0.12-0.67g/m 7)dimensions of deliver ball:φ160?80mm 8)delivery speed:20-30m/min 9)type of drafting and range:double zone drafting with the middle porupine control 10)diameter of roller:front rollerφ23mm,middle roller φ18mm/30mm,back roller φ40mm 11)porcupine:round shape sawtooth slice,width of porcupine:110mm combing width:78mm,diameter:φ50mm,numbers of teeth:30 specification:#25,#26,#27,28# 12)type of weighting:weighting blocks with lever,and together pressure relieved. 13)total drafting:200-255mm 14)type of twist:false twist device with rubbing apron,stroke of reciprocation:25mm,32mm 15)type of twist:the small car,s reciprocation is applied by eccentric ellipse gears and crank sliding block structure. 16)stroke of winding:180mm 17)specication of bobbing:φ45?10mm 18)cleaning device:top and bottom roller are cleande by cloth plate,porcupines are cleaned by brushes. 19)certain length stopping:3 shifts certain length autostopping are controled by meter counter. 20)power:jo3-11216(left) threephase asynchronous motor,4kw 965rpm/min 21)overall dimensions:(l譿議) 18heads balls feeding: 10343?790?000mm 18heads cans feeding: 10343?790?000mm 24heads balls feeding: 13043?790?000mm 24heads cans feeding: 13043?790?000mm MODEL FB441A PORCUPINE ROVE FRAME ELECTRICAL PART IS CONTROLLED BY PLC.PHOTOELECTRIC AUTO-STOPPING DEVICE IS ADOPTED IN MACHINE FOR THE SLIVER FEED AND DELIVER COUNT AND CERTAIN LENGTH ARE CONTROLLED BY ELECTRIC METER COUNTER. THE OTHERS ARE THE SAME AS FB441