How to choose singe or double shaft shredder

Single shaft shredders and double shaft shredders are common types of shredders. Many people who are new to them are always unclear when choosing a shredder. Let me tell you about the two. the difference.

1. The composition structure is different

The double shaft shredder is mainly composed of a shredding blade group, a load-bearing box, a box bracket, a feeding system, a power system, and an electrical control system. The material is crushed by the principle of mutual shearing and tearing of two relatively rotating knife rollers. The material enters the inside of the shredding box, and is shredded into small pieces through the comprehensive action of shredding blades such as tearing, extrusion, and shearing, and is discharged through the discharge hole below the equipment, and the subsequent materials are sent out through the conveyor belt for further crushing deal with.

The single shaft shredder is mainly composed of a main shaft, a blade, a fixed knife, a load-bearing box, a box bracket, a feeding system, a pushing system, a power system, and an electrical control system. The material enters the inside of the shredding box through the feeding system. The shredding blade is carried on the box. The pushing box pushes the material to the vicinity of the blade. The material is torn and squeezed by the shredding blade and shredded into small pieces. The material is discharged from the screen hole to achieve material shredding.

Second, different types of knives

The moving shaft of the double-shaft shredder has become two, both of which are inlaid with blades. The two shafts rotate relative to each other, and the operation of the material is similar to that of a single-shaft shredder.

The single shaft shredder is equipped with only one moving shaft, and the blades are all installed on this shaft, forming a mutual shearing form with the fixed knife on the box body.

Third, the working principle is different

Double shaft shredder is driven by "double motor + double planetary reducer", and uses the principle of mutual shearing and tearing between two relatively rotating knives to crush materials.

The single shaft shredder adopts a single shaft "motor + reducer" drive design, which provides large shearing force and ensures high crushing efficiency. It is often used for the fine crushing of solid waste, which can process the material to a smaller particle size at one time.

Fourth, the difference of crushed materials

The double shaft shredder is driven by a reducer, with low speed and high 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 bulky and hard materials.

Compared with the double shaft shredder, the materials shredded by the single shaft shredder are more limited, and are often used in paper mills, waste cloth, leather scraps, PE, PP plastic tubes, plastic films, woven bags, wires and cables, and cans. , aluminum chips and other aluminum products. However, since the single-shaft shredder works together through the fixed knife and the moving knife, the torque of the equipment is limited, and the size of the feeding bin is limited, so the single-shaft shredder shreds smaller particles than the double-shaft shredder.

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