The double shaft shredder blade is one of the important parts of the shredder. The quality and correct installation of the blade largely determine the use effect and life of the shredder. Generally, the spiral mounting method is adopted, and the spacer sleeve is separated in the middle. The thickness of the blade should be 0.2 to 0.3 thick to prevent the blade from colliding during operation and choose a reasonable thickness and number of teeth according to the size of the product.

With the development and innovation of the blade industry, the quality of the raw materials of the blade is increasing. The double shaft shredder blades are commonly used in a variety of materials, and the materials are generally selected according to different processing objects:

Common materials used in the plastic industry are 42CrMo, W5SiCr, SKD-11;
Common materials used in the metal industry are: 6CrW2Si, Cr12Mov, LD, H13;
Common materials used in the wood industry are: 5WSiCr, 6CrW2Si, SKH, SKD-11, D2;
The heat treatment reached HRC 55-57.

According to the material of the shredder shredded product, choose the appropriate blade. For rubber, the shredding of the film generally adopts the blade of Cr12mov. For the shredding of wood and plastic, the blade of 55sicr is generally used, for shredded scrap popped flower and flower iron. A blade using H13 is suitable because H13 is a hot work die steel which is a steel formed by adding alloying elements to carbon steel. It has good comprehensive performance at medium temperature, high hardenability and low heat treatment deformation rate, high-temperature resistance, and low deformation. Therefore, double shaft shredder blade is more suitable for shredding metal products.

Double Shaft Shredder Blade Process Protection:

	More than 10 processes are completed independently No outsourcing and cost saving With a full set of processing equipment, from forging, finishing to heat treatment processing, a full set of processes to complete independently, eliminate the process outsourcing, reduce the machining cost of mechanical blades, truly benefit customers
New vacuum heat treatment process Technical precision and high quality The new heat treatment technology is used to accurately set the heat treatment process parameters to ensure the high strength, high hardness and high toughness of the workpiece after heat treatment. At the same time, the surface phosphorus chips are removed to improve the surface brightness of the blade
	Strictly check every process The materials used are of high standard According to the size and appearance requirements, each process is strictly in accordance with the standard operation, in 200℃ high-temperature stress, heat preservation longer than 2h, quenching 8h, scientific forging ratio, to ensure the processing accuracy, eliminate jacking

Commonly used double shaft shredder blades. The inner hole is generally an inner hexagon, and the outer circumference commonly has three claws, six claws, eight claws, and twelve claws. The number of jaws, the clearance and the distance from the blade to the spacer determine the size of the shredded material. Generally, the double shaft shredder blades are available in diameters from 200mm to 500mm and thicknesses from 20mm to 55mm. They can also be customized according to customer needs.

Video