In a gas injection moulding process, there can be a wide range of gas consumption and this depends on many factors including:

• The gas pressure used to pack the moulding

• The cycle time

• The size of the gas channel

• The length and bore of the tube connecting from the gas controller to the mould.

• The amount of leaks between mould plates

• The amount of leakage between the gas nozzle and the part being moulded.

• Whether gas blows through an overspill (which is sometimes used to help carry away heat, but which we don’t recommend)

In general, our experience is that a gas assisted moulding channel consumes between 30 and 120 Nlpm of gas.