What is a shear crusher and its characteristics

Shear crusher play a significant role in the field of garbage disposal. They can dismantle and crush large and irregular garbage, such as old furniture and large plastic containers, through the shearing action of the blades, making the garbage smaller and easier to transport, sort, landfill or incinerate. In terms of resource recycling, the material treated by them has a uniform particle size, which is conducive to screening out recyclables and improving recycling efficiency. At the same time, it runs with low noise and dust, reducing the impact on the surrounding environment and residents' lives, and providing strong support for urban garbage disposal and industrial solid waste treatment.

A. What is a Shear crusher?

Shear crusher

A Shear crusher is a professional equipment that mainly relies on the shearing action of blades to achieve garbage crushing. It is widely used in the field of garbage disposal. Its core structure consists of fixed blades and movable blades. When working, the movable blades are driven by hydraulic systems or mechanical devices to perform regular reciprocating motions and cooperate with the stationary fixed blades. When various types of garbage enter the crushing chamber of the crusher, the blades are like huge scissors. Through precise opening and closing and shearing actions, the garbage is gradually disassembled and torn, thereby crushing the garbage into a smaller size and more convenient for subsequent processing.

A Shear crusher uses the shearing action of blades to crush garbage. Its structure is usually composed of fixed blades and movable blades. The movable blades reciprocate under hydraulic or mechanical drive, cooperate with the fixed blades, and shear and tear the garbage entering the crushing chamber.

B. Characteristics of Shear crusher

Shear crusher

1. Long tool life: The blades are made of special materials with high wear resistance and corrosion resistance. Moreover, the replacement and maintenance of the blades are relatively convenient, which reduces the maintenance cost and downtime of the equipment. Generally speaking, after reasonable maintenance, the blades can maintain good working condition for a long time and handle a large amount of garbage.

2. High adjustability: The blade spacing, shearing force and other parameters can be flexibly adjusted according to the characteristics and processing requirements of different garbage to achieve the best crushing effect. For example, when processing plastic sheets of different thicknesses, the blade spacing can be adjusted to ensure that the particle size after crushing meets the subsequent processing requirements.

3. Uniform crushing effect: The material processed by the shear crusher has a relatively uniform particle size, which is conducive to subsequent classification, screening and recycling. Whether it is used to make recycled materials or for incineration, landfill and other treatments, uniform particle size can improve processing efficiency and quality.

4. Low noise and low dust: During operation, since it is mainly the shearing action between the blades, unlike equipment such as impact crushers, which will produce violent collisions, the noise is low. At the same time, the dust pollution generated by the shearing process is relatively small, which meets the current environmental protection requirements. In places with high environmental requirements such as urban garbage treatment plants, this feature has made it widely used, reducing the impact on the lives of surrounding residents.

5. Strong ability to handle complex garbage: It has unique advantages in handling large and irregularly shaped garbage, such as waste furniture, large plastic containers, etc. These garbage are often difficult to be effectively handled by other crushers, but the shear crusher can disassemble and crush them into suitable sizes by virtue of the opening and closing and shearing action of its blades, which is convenient for subsequent recycling. For example, when handling large waste sofas, it can accurately separate and crush the sofa frame, fillings, etc.

It is precisely because of these characteristics that the shear crusher plays an increasingly important role in the fields of urban garbage disposal and industrial solid waste disposal, and has become an indispensable key equipment in the garbage disposal process.

C. The difference between shear crusher and shredder:

Shear crusher and shredder are not exactly the same. Although they have similarities in some functions, they have some differences in design, working principle and application scenarios.

Shredder

1. Shear crusher

a. Working principle: The shear crusher mainly crushes materials by shearing force. It is usually equipped with two or more blades moving relative to each other, which cut the material into smaller blocks or sheets by shearing action.

b. Applicable materials: Suitable for processing harder materials, such as metal, plastic, wood, etc. Commonly used in the fields of scrap steel processing, dismantling of waste household appliances, etc.

c. Crushing effect: Shearing crushers usually crush materials into relatively uniform blocks, which are suitable for subsequent sorting and recycling.

2. Shredders

a. Working principle: Shredders mainly tear, pull and squeeze materials through rotating knife rollers or blades to tear materials into smaller pieces or particles.

b. Applicable materials: Suitable for processing softer or tougher materials, such as rubber, plastic, paper, textiles, etc. Commonly used in the fields of waste paper processing, plastic recycling, and waste tire processing.

c. Crushing effect: Shredders usually tear materials into irregular pieces or particles, which are suitable for further processing or recycling.

3. Main differences

a. Crushing method: Shearing crushers mainly crush materials by shearing force, while shredders mainly crush materials by tearing and pulling.

b. Applicable materials: Shear crushers are more suitable for processing hard materials, while shredders are more suitable for processing soft or tough materials.

c. Crushing effect: The materials produced by shear crushers are usually more uniform, while the materials produced by shredders may be more irregular.

From the above differences between the two, it can be seen that although shear crushers and shredders are both crushing equipment, their working principles, applicable materials and crushing effects are different. Therefore, they are not the same machine, but two different types of equipment designed according to different processing needs.

PS: Shear crushers play an increasingly important role in urban waste treatment, industrial solid waste treatment and other fields, and have become an indispensable key equipment in the waste treatment process.

Author:Fiona Fan

Fiona Fan is a contributor to the blog and news column of the Zhongcheng Machinery website. She has several years of work experience in the machinery industry, has a deep understanding of crushing machinery and screening equipment, and shares useful knowledge about environmental protection machinery.