Rotational Moulding, also called Roto Casting or Roto Moulding is a
unique process because the heating, shaping and cooling process
take place inside a mould with no application of pressure. The
process is carried out at the ambient pressure, which makes the
products withstand environmental stress and crack resistant during
use.
A predetermined quantity of blended polyethylene resin powder is
poured inside a cold mould (usually of aluminum or steel sheet
metal).
The mould is then rotated (Bi Axially) and gradually heated inside
the oven. As the metal mould gets heated, the polymer resin powder
melts and the molten resin eventually get distributed (Coated)
along the inner surface of the mould. When all the powder has
melted & distributed, the mould is transferred to a cooling chamber
keeping the mould rotating.
The Bi-Axial rotation is continued until the cooling process is
finished and the polyethylene has solidified. The mould is then
opened and the finished product is removed. Given process chart
helps understand the system.
Help You Design With Our Professional Experience For Rotational
Mold
Oem / Odm
Yes
Mould Life
1 Year
Mould Production Cycles
15-60 Days
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