Parameter

How a natural frequency classifier works

• A natural frequency classifier uses a two-mass vibratory system consisting of an upper screen frame and a lower reaction frame. The classifier operates at a frequency close to the system’s natural frequency, maintaining stable vibration through resonance while reducing energy consumption.
• The vibrating drive generates directional exciting force to continuously move the bulk material forward in tiny jumps.
• As the material is conveyed, material particles of smaller size than the screen mesh size will be sieved out and separated from larger particles.

Features

• The device realizes stable oscillation back and forth under the natural frequency, which adopts the double-mass resonance structure. There is no turbulence in the box, so it can vibrate without cracking for continuous use.
• The resonance classifier can realize the smooth migration of material on the screen without the phenomenon of long particles bouncing and leaking because of the steady and adjustable vibration velocity and amplitude.
• The material has been screened three times and the screening accuracy is high due to its three layers of composite screen structure.
• We provide a single type sieve plate with 12 different mesh types, such as 2.0-10.0mm. It can be flexibly changed according to the size of different pelletizing sizes to ensure that each product can achieve the best screening efficiency.
• The sieve plate is fixed with an anti-loose quick clamp, which can be removed quickly in 1 minute and cleaned in 5 minutes.

What does a Natural Frequency Classifier do?
The Natural Frequency Classifier is applied in the plastic pellets manufacturing. During the process, the Natural Frequency Classifier separates materials into classes based on particle sizes. The Natural Frequency Classifier can separate fines, broken pellets, qualified pellets, long pellets, joined pellets, and agglomerates.

The Natural Frequency Classifier is typically positioned after the pelletizing, dewatering or drying units, and before the conveying, homogenization, storage and packaging units.

Applications

• Position in the production line

  Natural Frequency Classifier is typically positioned after the pelletizing, cooling and drying units, and serves as an important classification and quality control unit before finished product discharge.

• Applicable materials

  Masterbatch (Color and functional), modified engineering plastic pellets (PA, PBT, PP, etc.), rubber pellets