The Ultimate Guide to Scrap Metal Shredder Machine

Metal waste (scrap metal) has a high recycling value. It can be smelted back into recycled metal, or used to produce machinery and equipment or parts, tools and civil appliances. Metal waste can be fed into a double-shaft shredder to reduce the size of the raw materials through the shearing, extrusion and tearing of the blades. It can then be sorted by a magnetic separator and an eddy current separator to improve the recycling efficiency of ferrous and non-ferrous metals.

Metal shredder is a double-shaft shredder equipment. With the widespread use of metal crushers and the development of scrap metal graded crushing technology, metal shredders have emerged and become a new type of metal crushing equipment. The shredder teeth of the metal shredder are spirally arranged on the main shaft of the knife roller. The two parallel guide rollers rotate in opposite directions to achieve the expulsion and crushing of the material. Since the equipment is mainly used to crush various large-volume scrap metal materials, and cooperates with metal crushers and other equipment to perform secondary material particle size crushing, it is also called a metal coarse crusher.

The metal shredder makes full use of the characteristics that the shear and tensile strength of the material is much smaller than the compressive strength, and uses the shear and tensile forces to crush the material. Therefore, the metal shredder has the characteristics of low energy consumption, low over-crushing rate, simple structure, and easy maintenance. It is one of the indispensable crushing equipment for many large automobile crushing plants and large-scale scrap steel and aluminum crushing and recycling plants.

The working principle of the scrap metal shredder is mainly to use the shear force of the rotating moving knife and the fixed knife to shred the scrap metal materials into small pieces. Specifically, the scrap metal shredder is equipped with multiple sets of blades, and a certain spacing is formed between the blades. When the scrap metal material enters the machine, it is sheared and torn by the rotating blades and gradually torn into small pieces. The torn metal pieces can be screened and classified for subsequent smelting and reuse.

The metal shredder uses roller shearing to achieve the coarse crushing of various large-volume materials. Since the rollers use the lever principle, the shear force is much greater than the hardness of the material, so it is suitable for the crushing of various medium and high hardness materials. The processed materials are shredded as the rollers rotate. When they enter the bottom of the machine, they are automatically discharged from the hopper, and the metal scraps are sent out of the machine along the inclined conveyor belt trough. The whole crushing process is completed.

1. The range of materials that can be crushed by the metal shredder:

The metal shredder can crush various car shells, small light and thin briquettes, motorcycle frames, bicycle frames, refrigerator iron sheets, TV iron sheets, washing machine skins, cans, paint barrels, oil drums, waste color steel tiles, thin iron sheets, etc. Various thin metal materials below 6 mm. At the same time, the equipment can be equipped with a hammer crusher and a magnetic separator to perform a series of treatments such as coarse crushing, fine crushing, sorting, and impurity removal on the crushed metal materials to remove impurities in the metal and process them into qualified furnace materials required by the steel plant.

2. Materials that are not suitable for metal shredders:

• Dangerous materials: a. Sealed containers, conduits, sealed high-pressure gas cylinders (hydraulic gas cylinders, etc.); b. Inflammable and explosive items that may cause explosions, fires, etc.;
• High-hardness automotive parts, etc.: car engines, gearboxes, crankshafts, differential gears, etc.;
• Other materials that are not suitable for shredding: metal plates and metal blocks with a thickness of >5mm or a weight of more than 20kg, steel sections, rails, etc.

1.Powerful processing capacity
The scrap metal shredder adopts a powerful drive system (motor + reducer or hydraulic motor), which can generate greater torque and power to ensure fast and effective crushing of various scrap metals. Compared with traditional crushing methods, scrap metal shredders can greatly improve production efficiency, reduce processing time, and thus reduce operating costs.

2.Wide range of applications
Scrap metal shredders are not only suitable for common scrap steel, scrap aluminum and other metal materials, but can also be used for the crushing of non-ferrous metals such as copper, zinc, and nickel. This makes the equipment have a wide range of application prospects in the field of resource recycling. Through reasonable adjustments, we can also meet your special requirements for the crushing particle size of different materials.

3.Easy to maintain and operate
The double-shaft shredder has a compact structure and easy operation, which greatly reduces maintenance costs and time. At the same time, the equipment adopts an intelligent control system, which can realize one-button start, automatic monitoring and other functions, ensuring the stability and continuity of production.

4.Customized solutions
ZZCHRYSO always insists on providing customized services to customers. We can tailor suitable solutions for customers according to their specific needs. From equipment selection, process design to later installation and commissioning, ZZCHRYSO will provide customers with all-round professional support.

1. Metal shredder equipment structure design and equipment power:

The metal shredder structure consists of a frame, a shredding blade group, a bearing box, a box bracket, a feeding system, a power system, and electrical control. Reasonable design plays an important role in the stability and operating efficiency of the shredder. Reasonable structural design can reduce equipment loss, improve operational safety and shredding efficiency. The motor power of the metal shredder determines the shredding capacity and efficiency of the equipment. Equipment with higher power can provide higher shredding force and speed, thereby increasing production capacity.

2. Design of metal shredder feeding method and speed:

Automatic feeding and manual feeding methods will affect the shredding efficiency. The automatic feeding system can provide continuous and uniform feeding, avoiding equipment idling caused by uneven feeding, thereby increasing production capacity. The spindle speed of the metal shredder equipment directly affects the shredding speed. Generally speaking, a higher speed will increase the shredding amount per unit time, but it will also affect the wear of the blade and the vibration of the equipment.

3. The impact of raw material material and hardness and shredder blade material on production:

The types of raw materials processed by the metal shredder (such as scrap iron, scrap aluminum, scrap copper, etc.) and their hardness have a direct impact on production capacity. Metal materials with higher hardness require stronger shredding force, which will reduce the processing speed and affect production capacity. The metal shredder blade component is the core component of the shredder. The quality, sharpness and wear resistance of the blade material all affect the shredding effect. The layout of the blade (such as the number and arrangement of blades) will also affect the shredding efficiency. High-quality blades and reasonable layout can significantly improve the production capacity of the equipment.

4. The skills of the operator and the familiarity with the equipment are also important factors affecting production capacity.

Skilled operators can efficiently feed and control the operation of the equipment, thereby improving the overall efficiency of the equipment.

1. Resource recycling: Metal shredder equipment can effectively process and disintegrate discarded metal products such as scrapped cars and scrapped household appliances, and convert them into reusable raw materials. This helps reduce the demand for primary resources, extend the utilization life of resources, and reduce the pressure on the exploitation of natural resources.

2. Reduce waste emissions: Metal shredders can crush large discarded metal products into small pieces, which is conducive to compression and storage, thereby reducing the volume of discarded metals, reducing the pressure on landfills, and reducing pollution to the environment.

3. Energy saving and emission reduction: Compared with traditional smelting methods, metal shredders usually consume less energy in the metal recycling process. In addition, by recycling and reusing metals, the energy and emissions required in the production process of new metals can be reduced, thereby reducing greenhouse gas emissions and helping to address climate change.

4. Promote circular economy: Metal shredders help to establish a circular economy model, reinvest discarded metal products into production and consumption, realize the recycling and reuse of resources, and promote sustainable economic development.

In general, metal shredder equipment plays a key role in sustainable development, processing scrap metal products such as discarded cars, scrap household appliances, scrap steel, etc. into raw materials that can be used for re-production.