The difference between single shaft shredder and double shaft shredder

Single shaft shredder and double shaft shredder is a common shredder type, many customers in the choice of shredder is always unclear about the difference between the two, let's talk about the difference between the two.

First, the composition structure is different

The double-shaft shredder is mainly composed of shredding blade group, bearing box, box bracket, feeding system, power system, and electrical control system. The principle of mutual shearing and tearing of two relatively rotating knife roller tools is used to crush the material. The material enters the inside of the shredding box, and after the comprehensive action of tearing, extrusion, shearing and other comprehensive effects of the shredding blade, the material is shredded into small pieces, and discharged through the discharge hole under the equipment, and the subsequent material is sent out through the conveyor belt for further crushing treatment.

The single-shaft shredder is mainly composed of spindle, blade, fixed knife, bearing box, box bracket, feeding system, pushing system, power system, electrical control system, etc. The material enters the inside of the shredding box through the feeding system, the box body is loaded with a shredding blade, the pushing box pushes the material to the vicinity of the blade, and the material is torn into small pieces of material through the comprehensive effect of tearing and extrusion by the shredding blade, and discharged from the screen hole to achieve material shredding.

Second, the knife type is different

The moving shaft of the double-shaft shredder becomes two, both inlaid with blades, and the two shafts rotate opposite each other, and the material is operated similar to that of a single-shaft shredder. The single-shaft shredder is equipped with only one moving shaft, on which the blades are mounted and cut each other with the fixed knife on the box.

Third, the working principle is different

The double-shaft shredder adopts the drive of "double motor + double planetary reducer", which uses the principle of mutual shearing and tearing between two relatively rotating tools to crush the material. The single-shaft shredder adopts a single-shaft "motor + reducer" drive design, which provides large shear force and ensures high crushing efficiency. It is often used for the fine crushing of solid waste, and the material can be processed to a smaller particle size at one time.

Fourth, the crushed materials are different

The double-shaft shredder adopts reducer drive, which has low speed and large torque, high crushing efficiency and stronger applicability. It is suitable for shredding domestic waste, industrial waste, electronic waste, biomass, kitchen waste, medical waste, wood and other materials with large volume and high hardness.

The materials shredded by single-shaft shredders are more limited than those of double-shaft shredders, and are often used in paper mills, waste fabrics, leather scraps, PE, PP plastic pipes, plastic films, woven bags, wires and cables, cans, aluminum chips and other aluminum products. However, because the single-shaft shredder works together through the fixed knife and the moving knife, the equipment torque is limited, and the size of the feed bin is limited, so the single-shaft shredder is smaller than the double-shaft shredder.

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