This machine is the modest SBT-550 opener with automatic backing system. It is superior than others at  high effective, power saving,  cotton fiber is more longer  and so on. It can save 5-7degree electricity average per hour, and will not destroy fiber, also easily to mantling wire. It is our new products which can replace of wooden roll machine.  Now after using in china market, it is welcomed by Chinese user.
main parameter:
1,output:120-150kg/hour
2,qty of removing impurity:30%-40%
3,roll diameter:550mm
4,rotation speed:1440r/m,1580/r/m
5,dust baskate:500mm
6,press cotton pack:140*9.85
7,fan machine:1.5KW*2900r/m
8,chain:19.5mm
9,power:15-18KW 
10.tackrin wire:2m×3.5teeth×8.8inch
          1.65m×3.5teeth×8.5inch
11.weight:single1.2ton         double2.0ton
12. outside dimention:single roll:length 2350mm xwide1550mm xhigh1550mm
             double roll: lengh3550mmxwide1550mmxhigh1550mm