A low-noise plastic crusher is not silent. The sound reaching an operator depends on the material, feed method, rotor, knives, screen, enclosure, machine foundation, room surfaces and measurement position.
For a buyer, the practical goal is to select a crusher that handles the required scrap while controlling impact noise and vibration at the installation point. Any numerical sound claim should be tied to a stated test condition.
Start With the Scrap and Installation
- Polymer, part shape, wall thickness and temperature at feeding.
- Largest sprue, runner, bottle, profile or moulded reject.
- Manual, robot or conveyor feeding.
- Target regrind size and required hourly output.
- Distance to operators, offices or neighbouring equipment.
- Available floor space, foundation and ventilation.
Which Features Influence Noise?
| Feature | Selection question |
|---|---|
| Sound-reducing enclosure | Does it cover the main noise path while allowing service access? |
| Feed hopper | Can it reduce rebound and direct sound without restricting the material? |
| Rotor and knives | Are they matched to the part geometry and required regrind? |
| Screen | Does the opening balance output size, heat and recirculation? |
| Mounting and discharge | How will vibration and secondary noise be controlled? |
Compare the Correct Machine Size
The WS650 low-noise plastic crusher is intended for runners, rejected moulded parts, bottles, profiles and selected production scrap after a feed-size review. Larger rigid parts may require the FS800B rigid plastic crusher or another chamber configuration.
Do not select a machine only because it is described as silent. Confirm the feed opening, motor, rotor, screen, enclosure, discharge and sound-measurement conditions.
Frequently Asked Questions
Is a low-noise crusher completely silent?
No. Enclosures and machine design can reduce sound, but cutting and material impact still generate noise.
Can an enclosure cause overheating?
Ventilation and motor cooling must be designed with the enclosure. This is part of the final configuration review.
Does a smaller screen make the machine louder?
It can increase recirculation, heat and load. Screen selection should balance particle size with actual material behaviour.
Can the crusher sit beside an injection moulding machine?
Yes for suitable applications, but feeding height, robot interface, dust, sound and operator access must be confirmed.
What is needed to compare noise performance?
Use the same material, throughput, screen, operating condition, distance and measurement method for a meaningful comparison.
Request a Low-Noise Crusher Review
Send scrap photos, maximum dimensions, material, target regrind, hourly requirement, feeding method, installation location and voltage through the AMIGE inquiry page.