What is the difference between single shaft shredder and double shaft shredder?

There are significant differences in multiple aspects, mainly reflected in the following aspects:

Power shredding system

• Single axis shredder: There is only one shredder shaft in the middle that rotates to shred items. Its working principle is that the moving blade and the fixed blade interact to shred materials, and the sieve inside the box controls the size of the discharged material, shredding the materials to smaller sizes.
• Double axis shredder: It shreds items by rotating two shredding shafts. The main component is a rotor with two blades arranged in a spiral pattern. The motor obtains a large torque by slowing down through a reducer, driving the two rotors to move towards each other. During the movement, the teeth on the rotor bite the material, pulling it into the blades and shearing and pulling them together, achieving the effect of shredding the material.

Scope of application and efficiency

• Single axis shredder: specifically designed for materials, with relatively low cost-effectiveness. It is widely used in the field of resource recycling and regeneration, such as the plastic industry, metal industry, wood industry, home appliance industry, etc. Due to having only one axis, its shredding efficiency and adaptability may not be as widespread as dual axis shredders.
• Double axis shredder: universal and cost-effective. Suitable for shredding various materials, including household waste, industrial waste, electronic waste, biomass, kitchen waste, etc. It has low speed and high torque, high shredding efficiency, and can handle oversized, extra thick, and difficult to break materials.

Working principle and characteristics

• Single axis shredder: The material is cut by the protruding blade on the transmission shaft to achieve shredding effect. The size of the torn fragments is relatively small, but the energy consumption is relatively high.
• Double axis shredder: equipped with a microcomputer automatic control system, it has functions of starting, stopping, reversing, and automatic reversing. The size of the torn fragments is relatively large, but the energy consumption is low and the tearing ability is strong. In addition, the dual axis shredder also has the characteristics of wide applicability, low noise, and no dust.

Cutting Tools and Structures

• Single axis shredder: The rotary cutting blade shaft is equipped with movable inserts, and the number of movable blades depends on the type and size of rotation. Active cutting tools are four sided machinable tools that can be removed and replaced through passivation.
• Double axis shredder: using a toothed tool with a certain axis, the speed difference between the two axes produces a tearing effect. The shaft rotates slowly but has a high torque, resulting in high shredding efficiency.

In summary, there are significant differences between single axis shredders and double axis shredders in terms of power shredding systems, applicability and efficiency, working principles and characteristics, as well as cutting tools and structures. Users should comprehensively consider specific needs and material characteristics when making choices.

If you are interested in the metal processing industry, please consult us at Zhengzhou Fude Machinery. We integrate research and development, manufacturing, and sales, including metal compactors, cake presses, shredders, plastic crushers, shearing machines, etc. We have rich industry experience and professional technicians to recommend equipment, develop comprehensive single machine and production line plans, and offer discounted prices for direct sales from manufacturers. We hope to receive your satisfaction.