1. Low Speed Design Helps Reduce Noise
- Generally considered a relatively low‑noise industrial shredder.
- Runs at low speed with high torque.
- Typical shaft speed: around 10 to 40 revolutions per minute.
- Produces less friction, impact, and air noise than high‑speed hammer mills or impact crushers.
2. Typical Noise Range Is Below 85 Decibels
- Under normal conditions, noise level is usually kept below 85 dB.
- Some models report around 74 to 77 dB under measured working conditions.
- Others may reach about 80 to 85 dB depending on size, material, and load.
- Exact value must be confirmed from the manufacturer data sheet.
3. Material & Load Affect Noise
- Noise can rise when processing hard metal scrap, mixed waste, hollow drums, or oversized objects.
- Sudden impact, uneven feeding, worn cutters, loose fasteners, or poor foundation support may increase vibration and sound.
- Stable feed rate and proper material preparation help keep noise more consistent.
4. Confirm Noise Control Before Purchase
- For export projects, request declared noise level, measurement distance, enclosure type, vibration control, and optional sound insulation cover.
- Double shaft shredder is not a silent machine.
- Its low‑speed shearing principle makes it easier to control noise than many high‑speed crushing systems.
