DP® KNIVA Knife Granulator

Knife Cutting Mills

DP® KNIVA Knife Granulator

The DP® KNIVA Knife Granulator is a high-performance cutting mill engineered for precise granulation of ayurvedic/herbal roots, fibrous food, whole spices, rubber, and plastic. Its robust knife design ensures efficient size reduction, consistent particle quality, and low maintenance—making it ideal for recycling, food processing, polymer processing, and industrial waste applications.

Allowable Feed Size: 0 to 15 mm
Achievable Output Fineness: 8 Microns to 40 Microns
Throughput Capacity: 5 kg/hr to 2000 kg/hr

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Working Principle

The DP® KNIVA Knife Granulator operates on the principle of controlled cutting and granulation using rotating and stationary knives. Material enters through the feed inlet (1) and flows into the cutting zone (2) via the feed hopper, guided by gravity or auxiliary feeding systems.

Inside the cutting zone, the material is sheared between fixed stationary knives (3) and high-speed flying knives (4) mounted on the rotor. This scissor-like cutting action ensures efficient size reduction with minimal dust generation. The granulate material then passes through the perforated screen (5), which determines the final particle size. Oversized pieces are retained in the cutting chamber until they are reduced sufficiently to pass through the screen.

Finally, the uniformly sized granules are discharged through the fine product outlet (6) for collection, conveying, or downstream processing. By selecting different screen sizes and knife configurations, the granulator can deliver precise particle size control tailored to various recycling, polymer, and industrial applications.

Features & Benefits

Stationary and rotating knives deliver efficient, scissor-like cutting for uniform granulation.
Interchangeable perforated screens ensure accurate and repeatable product sizing.
Robust rotor design with replaceable blades extends service life and minimizes downtime.
Hinged housing and accessible cutting chamber allow fast cleaning and knife replacement.
Optimized cutting chamber reduces fines generation and improves workplace environment.
Easy access of internal components for cleaning and maintenance

Machine sizes

Options & Accessories

Construction Materials: Available in carbon steel, stainless steel (SS304, SS316, SS316L), or custom-engineered materials to meet specific product, hygiene, or
regulatory requirements.
Screen Configurations: Interchangeable perforated screen options with customizable hole sizes, enabling precise control of final granule size for different applications.
Safety Mechanisms: Can be equipped with safety interlocks, vibration monitoring, and temperature sensors for enhanced operational safety and equipment protection.
Inline and Standalone Configurations: The DP® KNIVA Knife Granulator is offered in two configuration options to suit different processing needs: Standalone Configuration – Delivered as a self-contained unit for independent operation, ideal for dedicated granulation tasks or pre-processing applications. Inline Configuration – Compact design easily integrated into existing processing lines, typically installed before fine grinding or downstream processing equipment to ensure continuous and seamless material flow.