Yes, absolutely. There are robust industrial shredders specifically engineered to shred whole, large-diameter HDPE and LDPE plastic pipes. The machine with a "big rotating plate" is typically a heavy-duty single-shaft shredder featuring a large, powerful rotating disc or rotor equipped with hardened cutting hooks or blades. This design is excellent for the task.

Here’s a more detailed breakdown of how these machines work and what to look for:

The "Big Rotating Plate" Shredder for Pipes

This design is a Single-Shaft Shredder with a key feature:

Large, Disc-Type Rotor: Instead of a traditional shaft with separate blades, it uses a massive, solid steel disc (the "rotating plate") with cutting segments or hooks bolted onto it. This provides immense inertia and torque.

How It Works: The rotating disc grabs the whole pipe with its hooks, pulls it in, and shears it against a stationary counter-knife (the "bed knife"). The high rotational mass allows it to tackle bulky, rigid items without stalling, effectively using a "grab-and-tear" action.

Key Advantage for Pipes: This design is exceptionally good at processing long, cumbersome, and heavy materials like whole pipes without the need for pre-cutting. It can handle large infeed volumes and is known for its durability and low wear.

Critical Factors When Choosing a Pipe Shredder

When evaluating machines from XINYI MACHINERY or any supplier, ensure the equipment matches your specific needs:

Material Specifications: Maximum pipe diameter and wall thickness.

Machine Power & Torque: High torque at low RPM is crucial for tough plastics.

Feeding System: A wide, open hopper, often with a conveyor, is essential to force long, rigid pipes into the cutting chamber.

Cutting Tool Quality: Tools should be made from high-alloy steel (like D2, H13, or tungsten carbide-treated) and be easily replaceable.

Output Size: Determine the required shredded flake size (e.g., 80mm, 150mm) for your next processing step (washing, granulation, or direct sale).

Throughput Capacity: Required processing volume in kg/hour.

Application Flow

Whole Pipes → Heavy-Duty Shredder (Single Shaft) → Shredded Strips/Chunks → (Optional: Granulator) → Washed Flakes → Pelletizing → New Plastic Products.

Important Recommendation

It is highly advisable to conduct a live test using samples of your actual pipe material with the chosen machine model. This verifies throughput, output size, and machine suitability before purchase. Also, consider the supplier's reputation, availability of spare parts, and technical support.

Conclusion: The technology definitely exists. The heavy-duty single-shaft shredder with a large disc rotor is a standard and effective solution for whole plastic pipes. Suppliers like XINYI MACHINERY produce these machines, and careful selection based on your specific operational parameters will ensure a successful investment.