High-quality Shredder Concave Cutter For Plastics Shredding
Production application:
They are available in a wide range of different steels and hardness. They are custom manufactured for your specific requirements and waste materials thus improving the durability of the knives, optimizing machine performance, and lowering knife costs.
Plastic Waste: Breaks down PET bottles, HDPE pipes, and rigid sheets.
Wood Recycling: Shreds wooden pallets, boards, and furniture remnants.
Light Metal: Suitable for aluminum cans and thin metal components.
Electronic Scrap: Ideal for hard drives, TV shells, and circuit boards.
Popular Dimensions （custom Sizes Available）
item |
Size (L×W×T mm) |
Fits Brands |
1 |
34×34×20 |
Zerma |
2 |
65×65×28 |
Lindner |
3 |
80×80×35 |
Weima |
4 |
110×110×56 |
Untha |
We support small batch production and custom concave cutters for non-standard configurations.
Material & Hardness Reference Table
Material Grade |
Equivalent Standards |
Surface Hardness (HRC) |
Key Properties |
1.2379 |
D2 / SKD-11 |
58 – 60 HRC |
Excellent wear resistance, tool steel |
Design & FEATURES
Threaded Core Hole: Easy to install and secure on the rotor shaft.
Robust Build: Made from premium tool steel like 1.2379 (D2/SKD-11) for long-lasting performance.
Precision Machining: Tightly controlled tolerances ensure balanced, vibration-free shredding.
Advantages
Superior cutting strength with high wear resistance
Extended blade life reduces downtime
Engineered for compatibility with major shredder brands: Zerma, Lindner, Vecoplan, Weima, and more
Customization available—OEM according to your drawings or worn samples.
