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The Clamshell rotational moulding Machine is a single arm rotational machine.
The arm of the Clamshell rotational moulding machine was designed to be supported
with the other arms of the machine on both ends. The machine heats and cools in the
same chamber.
oven/cooler
lid closes
Mold support
moves into
oven/cooler

Molds mounted Oven/cooler
here for biaxial Hot air front door
rotation enters here
The Rock and Roll rotational moulding machine is a specialized single arm
machine. This machine rolls the mould in about 360 degrees in a single direction. At
the same time, it tips and rocks the mould in about 45 degrees either above or below
horizontal in other direction. Most of the new versions of this machine have the
feature of forcing hot air to heat the mould. These kinds of machines are said to be
best for large parts that are having long length-to–width ratio. It also has small
heating chambers that save heating cost.

Rocking
action

Rolling
action
The Shuttle or Swing arm rotational moulding machine is a single arm turret
machine. It moves back and forth between the two chambers; the heating and the
cooling chambers. It moves the mould in a linear direction into the heating and
cooling chamber in an in and out manner.
Cooling/Service Oven Cooling/Service
area A area B

Mold carriage A Mold Carriage B
Carriage rails
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