Plastic Shredder Blades And Knives are some 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 shredder 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.

Single shaft shredder blade in accordance with the name can know is to distinguish the multi-shaft shredding machine from a knife, and the appearance and the multi-shaft shredder blade knife difference is large, single shaft shredder knife mold is use of cube shape.

Common specifications are 35*35*22/40*40*25/60*60*30/80*80*35/34*34*20/40*40*25 *35* 35* 23/45 *45* 30/46 *46* 35/50 *50* 25/60*60*30 *30 / 72 * 72 * 50

single shaft shredder blade knife seat	Rotating knife blade for single shaft shredder	Fixed knife blade for single shaft shredder

single shaft shredder blade knife seat is used to bear the weight of the shredding machine knife rest, and the shredding machine knife rest contains the blade, the knife shaft, the sleeve and the cap, so the key part of the shredding machine is borne by the knife seat. We choose the thickened steel plate to be welded, and the side is welded with reinforcing bars to ensure the strength of the cutter block of the shredding machine.

Selection of size of Rotating knife blade:
35 * 35 * 25mm: When it is suitable for the size of the assembly, the amount of the amount is 20mm to 25mm;
40 * 40 * 25mm: The size of the normal knife is standard size, cutting general material;
80 * 80 * 30mm: Compare materials such as wood and tires.

Fixed knife blade for single shaft shredder: Shredding material with moving knife. According to the different models, the length of the fixed knife is different, and the fixed knife teeth correspond to the layout of the moving knife shaft.

Three types of shredder blade installation

First: the knife base and the knife shaft are welded together, which is relatively firm. Usually, choose this type of knife and tool shaft.
The disadvantage is that the clearance between the fixed knife and the moving knife is relatively large, and the minimum size of the discharge can only be 30mm.

Second: the knife and the tool carrier are embedded in the rotating shaft, suitable for film, woven bag type knife and the gap between the fixed knife is less than 1mm, can be used as a crusher.
Disadvantages: easy deformation, high processing cost.

Third: the tool rest is made into a body with the rotating shaft, which is suitable for the film, woven bag type, and the knife is installed separately.
Disadvantages: easy deformation, high processing cost.

We manufacture plastic shredder blades from D2, SKD11, and HSS tool steels, with vacuum-controlled heat treatment achieving HRC 56–60 hardness. The four-stage process includes vacuum austenitizing at 1,020–1,050°C, precision quenching, triple tempering at 180–200°C, and deep cryogenic treatment at -196°C. This eliminates retained austenite, reduces thermal deformation by 50%, and ensures dimensional stability within 0.05mm during continuous operation.
For extreme abrasion, a triple composite coating of TiN, TiCN, and Al2O3 extends cutting life by 300%. Standard D2 and SKD11 blades are in stock; non-standard specifications are available with 10–15 day lead time.

Standard blade products are available in stock, non-standard crushers blades can be customized according to customer requirements according to drawings and specifications processing and production, if not found on the website of the knife you need to call: carefully designed for you to produce the blade you need!

Feature:
Our high-end steel cutting tools are carefully selected from special steels such as D2, SKD11, HSS, 9CrSi, T10, etc. The hardness can be precisely customized to HRC56-60. Through surface strengthening, structural optimization, and precision grinding triple wear-resistant processes, the cutting life is increased by 300%, the shape accuracy retention rate at high temperatures exceeds 95%, the thermal deformation is reduced by 50%, and the full process stress relief technology is used to ensure operational stability, with a failure rate of less than 0.5%; This tool meets the needs of industrial precision machining and general material cutting, and can efficiently respond to scenarios such as metal sheet, mold manufacturing, wood and plastic cutting, and home DIY. The single cutting cost is reduced by 40%, the maintenance cycle is extended by 2 times, and the performance of 100000 continuous operations is not degraded. With ultra long life and stable reliability, it fully meets the diversified cutting needs of the industry to households.

Our company uses excellent steel, through forging, finishing, quenching, packaging, and other processes, to provide you with excellent, cost-effective blades, welcome to purchase!

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