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Cooling Towers: All plastic processing machines need some form of cooling.
Cooling towers are relatively inexpensive and dependable means of removing heat
from water circulated in the hot machine parts and moulds. Cooling towers
generally are enclosures housing a PVC mesh fill, large fan(s), and a collector tank
below. The hot water from machine is pumped through the inlet of the cooling tower
from top which falls onto the PVC mesh fill, accompanied by the cool air blown by
the fan at the top of the cooling tower. The cooled water percolates through the
mesh and collects in the tank below and is pumped back in to the machine.
Chillers: Cooling is the longest and most critical step in plastic processes. Moulds
are often cooled with chilled water for more efficient cooling. Chillers or chilling
plants circulate cold chilled water in the moulds to remove heat from the outer
surface of plastics and allow for faster cycles and stress free product. They are more
efficient than cooling towers but also expensive compared to them.
Compressed Air Chillers are used in blow moulding process which replace normal
air by chilled air for faster cooling.
Mould Dehumidification System: Chilling plants are difficult to use in places
where the humidity levels are extremely high as they cause a phenomena known as
"Mould Sweating" which causes moulding defects. During processing the mould
temperature is substantially lower to the atmospheric temperature which results in
moisture in the air to condense on the mould surface. Mould dehumidification
system is used to eliminate mould sweating. Advantages are it Improves cycle time,
Reduces scrap rate, Increases mould life, Enhances part / product quality,
Eliminates streaks, bubbles and other defects.
Mould Temperature Control: They are designed to maintain constant
temperature of mould during the moulding process thereby, increasing product
efficiency. It also ensures the final glossy finish of the product and reduces product
shrinkage, eliminates product weld line and provides product consistency
Hot Runner Controls: They are designed to maintain constant temperature as the
material flows in the internal passages of the manifold to the bushings and into the
mould cavities during the moulding process thereby, lower cycle time, reduce
stress, short mouldings and improve part quality.
Air compressors: Air Compressors compresses the atmospheric air within its
chamber and the supply the same at required set pressure flow. The air is cleaned
through a filter for dust and contaminations and pass regulator and lubrication
system for efficient results. Used in blown film, blow moulding, pipes extrusion
others applications.
Grinders / Granulators: All plastic industries generate some form plastic scrap in
one way or another. The scrap may be from machine purge at start up, in the form of
runners, flashing and wastage, or rejection during production like drums, pipes, car
bumpers, bottles, chairs and defective plastic products. Granulators are machines
that chop or cuts plastic products into small pieces which is then either reused along
with virgin materials or sent for recycling. Granulators consist of a feed hopper,
cutting chamber, classifying screen, and rotating knives that work in concert with
fixed bed knives to reduce the plastic scrap until it is small enough to pass through
the classifying screen. Granulators can be installed In-line for large volumes
productions, small unit beside the machine like in blow, injection mouldings

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