Unpacking machine is a new equipment for breaking waste paper bale. It is mainly used for breaking waste paper bales and screening out small impurities in dry process. It also provides conditions for cleaning heavy impurities waste paper after the bales were opened. it is design for continuously bale breaking and sorting process. The structure is reasonable designed according to feedstock conditions，giving enough thought to waste paper in bale especially imported waste paper problem of weight、volume and packaging tightness. It really solves many mass waste paper picking difficulty beyond human capability , especially for mass production of waste paper processing lines. As many rejects are cleaned before pulping，it radically reduces impurities into pulping process and greatly decrease the loads of screening and cleaning equipment and impurities fines in pulping process. So it really improve pulping quality and production efficiency especially for pulping system.
Unpacking machine consist of drum body、feeding device、drum drive wheel、support frame、drum axial wheel、safety cover、gearmotor . Drum body inside including lifting plate、screw plate. Lifting plate and screw plate are fixed on the drum inner wall. The two riding rings are located in driving wheels. Drum axial positioning wheel is located in bottom of the two riding ring. Feeding device locates in the inlet side of drum body.
| Model | SBJ12 | SBJ13 | SBJ14 | SBJ15 |
| Screen cylinder：(mm) | Ф3000 | Ф3250 | Ф3500 | Ф3750 |
| Screen mesh specification：(mm) | Ф25-Ф40 | |||
| Processing capacity：(T/D) | 200-500 | 500-800 | 800-1200 | 1200-1500 |
| Power：(kw) | 37 | 30×2 | 37×2 | 37×2 |
| Feed block size：(mm) | ＜1200×1200×600 | ＜1200×1200×600 | ||
| Feed moisture：(%) | ＜15 | |||
Slat conveyor feed the bales(after remove wire) to the feeding device and go into drum inside. The waste paper is lifted to a certain height by lifting plate, then fallen (in free fall), crashed onto the screw plate, lifting plate and cylinder wall. After the crash, tear, pressure, hit, squeeze breaking process, the material is delivering forward by the screw plate, and repeat the breaking process. After these process, solid paper bales become loosen paper. If drum design with screen hole then the hard particle/impurities would be separated by hole and fell into the slag tank. loose waste paper will come out to receiving conveyor after breaking, sorting conveyor can be an option before feeding to pulping system
