RK Edge Industrial Knives is a trusted manufacturer and supplier of high-performance industrial knives for the recycling sector. Our blades are engineered to process a wide range of materials, including plastics, rubber, metal scrap, and textiles, and are widely used in environmental and waste-management systems.

We manufacture shredder knives, granulator and grinder blades, rotor knives, and counter knives, produced from premium tool steels and hardened alloys to deliver high impact resistance, superior wear performance, and long service life. All blades are manufactured using advanced CNC machining and precision heat-treatment processes to ensure consistent accuracy and reliability.

Our granulator and grinder blades—also known as fly knives, dead blades, and granulating knives—undergo triple tempering to achieve optimal blade geometry, strength, and dimensional stability. Designed for demanding recycling applications, these knives provide exceptional toughness and extended operational life.

We offer custom-engineered solutions compatible with single-shaft shredders, twin-shaft shredders, and granulators, ensuring efficient and reliable performance across diverse recycling and waste-processing operations.

Available steel grades include:

1.2379 (D2): Suitable for most material streams

HSS Inlay (M2): Ideal for abrasive plastics, significantly extending blade life