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In plastic processing and recycling, selecting the right plastic granulator is crucial. Whether you process production waste, rejected parts, or post-consumer waste, the efficiency of your granulator has a direct impact on productivity, the quality of the recycled material, and your ultimate profitability. A wrong choice can lead to costly downtime, poor quality output, and lower ROI.

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This guide helps you choose the ideal granulator, tailored to your specific operational needs.

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• Plastic Production: Step 1: Clearly define your needs
• %% Ask yourself these questions:
• Reuse of internal waste (sprues, failed parts). %%
• PET, HDPE, LDPE, PP, ABS, PC, nylon, films, hard or soft plastics. %%
• Shape and size of input: %%

Small parts, large blocks, bottles, film rolls, large products.

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Required processing capacity per hour (kg/h).

• %% Size of granulate:
• %% Desired particle size and consistency for reuse.
• %% Workflow integration:

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Manual feeding, conveyors, or robotic integration.

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Step 2: Evaluate important technical factors

• %% 1. Material characteristics
• %% Specific granulators for various plastics:

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• Hard plastics: %%
• High-speed cutter rotors (V-cut/cutter). %%
• Soft plastics: %%

Open rotors, sharp knives with special angle, customized feeding systems.

• %% Abrasive plastics:
• %% Hardened knives and cutting chambers.
• 2. Throughput capacity %%
• Match granulator capacity with current and future volumes: %%

Avoid underdimensioning (neck) and overdimensioning (additional costs).

3. Granulate quality and uniformity

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Screen size:

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• Determines particle size; smaller screen yields finer, more uniform particles.

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Knife sharpness and configuration:

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Crucial for consistent quality.

4. Type of granulator and placement

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On-machine granulators:

• Energy Consumption
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• For direct local recycling.

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Central granulators: