Roto-molding

Roto-molding is a process in which the resin is transformed into hollow plastic pieces. The process comprises of four basic staged:
• A default load of plastic material is put in the lower section of a cold mold, usually made in aluminum or steel.
• The mold is closed and is rotated bi-axially within an over. As the mold is heated, the material begins to melt until that a uniform layer coats the internal surface of the mold.
• Once the plastic is melted, the mold is transferred to a cooling chamber in which the bi-axial rotation continues until the solidification of the material.
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Thereafter, the mold is open and the piece is extracted.

<See Applications under this process: Construction, Industrial, Toys
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