Water Ring Pelletizing VS Noodle Type Pelletizing

Time:2023-12-01

Water ring pelletizing is an advanced waste plastic pelletizing machine technology that drops plastic strips into a high-speed rotating water ring and is immediately cut into pellets. This process is suitable for granulating materials such as polyolefins and has the advantages of high output and continuous production. At the same time, the equipment of water ring granulation technology occupies a large area, and the water ring and cutters need to be frequently maintained and replaced during operation.

Noodle type pelletizing is a traditional waste plastic granulator technology, that directly cuts the strips extruded from the extruder into particles through a pelletizing mechanism. This process is suitable for granulating non-polar plastics such as polyvinyl chloride and polypropylene, and has the advantages of simple operation and low equipment requirements. At the same time, the output of strand granulation technology is relatively low, and the granulation mechanism and conveying device need to be cleaned regularly.

 

What is the difference between water ring pelletizing and noodle type pelletizing?

 

Pelletizing method:

Water ring pelletizing is to first drop the plastic strips into the high-speed rotating water ring, and then cut the rotating particles into particles with a cutter. Strip pelletizing is to directly cut the strips extruded from the extruder into pellets through the pelletizing mechanism.

Water ring pelletizing

Applicable materials:

Water ring pelletizing is suitable for the granulation of materials such as polyolefin, while drawbar pelletizing is suitable for the granulation of non-polar plastics such as polyvinyl chloride and polypropylene.

 

Production efficiency:

The output of water ring pelletizing is higher than that of noodle type pelletizing, because water ring pelletizing can pellet continuously, while noodle type pelletizing requires stopping the extruder to pelletize.

noodle type pelletizing

Operational complexity:

The operation of water ring pelletizing equipment is relatively simple, while the operation of noodle type pelletizing equipment is slightly more complicated and requires more maintenance and upkeep.

 

Frequency of tool replacement:

Since water ring granulation uses high-speed rotating blades to cut materials, the tools wear out quickly and require frequent tool replacement. The cutting tools for strip cutting are relatively small and wear slowly, so they need to be replaced less frequently.

 

Particle shape:

The shape of the particles of water ring granulation is relatively regular, close to round or oval, while the shape of the particles of stretch granulation is less regular, and some are bar-shaped or flat.

 

Application:

Water ring pelletizing is suitable for large-scale production, especially in industries that require a large amount of the same plastic products, such as packaging, construction, etc. Strip cutting and pelletizing are suitable for small-scale production or experimental stages, where different types of plastic products can be tried and explored.

 

To sum up, water ring granulation and stretch granulation are different in terms of granulation methods, applicable materials, production efficiency, operation complexity, tool replacement frequency, particle shape and scope of application, etc., and need to be based on specific production requirements. Choose the appropriate granulation method according to the requirements and material characteristics.

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