ENG
中文简体
русский
عربى1. Advantages comparison
|
Technology Type |
Particle characteristics |
Production efficiency |
Applicable scenarios |
|
Smooth surface and uniform size |
Medium to high |
Soft plastic (TPU/EVA), high filler (60% filler) |
|
|
Strand pelletizing |
Cylindrical particles are prone to sticking together and burrs are easily generated on the end surface |
Low to medium (manual threading required) |
Hard plastic (PP/ABS) |
|
Underwater pelletizing |
Spherical particles, good fluidity |
High (up to 25 tons/hour) |
Large-scale polymers (such as PP/PE), microparticles (0.7–2 mm) |
Key differences——
Cooling efficiency: Water ring pelletizing achieves instantaneous cooling through rotating water ring to avoid particle adhesion; strand pelletizing relies on slow cooling in the water tank, which is prone to deformation due to temperature difference.
Degree of automation: Water ring pelletizing supports PLC one-button start and stop, reducing manual intervention; strand pelletizing requires manual threading, and the labor intensity is high.
2. Advantages of water ring pelletizing
Ø Strong adaptability, suitable for special material processing
Soft and sticky materials: Elastomers (such as TPE, TPV) and hot melt adhesives with hardness < Shore A 40 can be stably cut, while strand pelletizing is easy to break and underwater pelletizing is too expensive.
Highly filled modified materials: Support PP/PE with a filling rate of 60% of calcium carbonate and talcum powder, no dust flying during cutting, environmentally friendly, and reduce dust pollution.
Thermosensitive polymers: Instantaneous cooling reduces high temperature exposure time and protects the molecular structure of EVA and biodegradable materials (PLA/PBAT).
Ø Environmental protection and operator-friendly
Low dust and noise: The water ring blocks the cutting process, and the dust generation is 70% less than dry cutting, and the noise is ≤75dB.
Wastewater recycling: The process water is recycled after being filtered through the filter, which meets the green manufacturing standards.
Fast startup speed: There is no need for the complex preheating process of underwater pelletizing (such as template washing and water temperature balance), and it can be put into production within 5 minutes, which is more efficient.
