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• Strand Water bath: The extruded strands are passed into water bath where
they cool, dried and then feed to pelletizer to be cut.
• Die Face underwater: The pelletizing takes place underwater cutting of the
polymer melt directly at the die plate. The polymer freezes in pellet form. This
technology has a number of advantages:
High product cleanness and homogeneity, No oxidation of the product and
Optimized and constant dispersion in the follow-up process
• Die Face Air cooled: As the extruded material exits the multi-hole die, the
material is cooled by forced cold air
• Die Face Water Ring: Water ring pelletizer has a vertical cutting blade which is
in contact with the flat surface of the die plate. Additionally, the water-cooled
blade is kept at a low temperature to prevent sticking of the pellets. The cutting
blade also has a variable speed controller to control the size of pellets and
ensure surface quality.
• Drop Pelletizing: this system is suited for low viscosity melts. The drop
pelletizing system works with air, nitrogen or water for the cooling process and
produces spherical pellets.
MECHANICAL RECYCLING PROCESS:
The process is very suitable for thermoplastics. Steps involved are:
Plastics in all form of carry bags, bottles, containers, packaging pouches, films,
sheet, computer housing and household appliances, many others in form of pieces,
lumps, bales, drools, lumps, purges, powders, others collected from collection
centers, road side, Municipals waste or directly from plastic processing industry is
brought and stored.
• Inspection: Incoming plastics are inspected for contaminants, foreign particles
and are sorted either by trained staff or by automatic techniques such as X-ray
fluorescence, infrared and near infrared spectroscopy, electrostatics and
flotation (Some plastics sink, other's float)
• Granulating/Washing: Plastics are "chopped" in a grinder and washed. (The
waste water is not hazardous and may be filtered and reused). This stage
removes contaminants such as paper labels, dirt and remnants of the product
originally contained in the plastic.
• Drying & Melting: Clean plastic flakes is thoroughly dried & fed into an extruder
where heat and pressure melt the plastic.
• Filtering: The molten plastic is forced through a fine screen to remove any
contaminants that may have eluded the washing cycle.
• Palletizing: The strands are cooled, chopped into pellets which are ready to be
reused by any of suitable blow, injection, extrusion process.
The recycling machinery includes grinders, film shredders, agglomerators,
washers & driers, granulators, extruder, Screen changers others and recycling
plants are readily available in India.

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