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The Control Gas™ range is mainly aimed at applications in the injection moulding plastics area. It consists of a nitrogen generator (Nzh), an industrial compressor (MH) and an automatic control unit (HGRn, LD) used to control and distribute the compressed gas.
The nitrogen generated by NZH at a pressure of 6 - 8 bar is stored in tanks connected to the MH compressor, which may increases the pressure up to 350 bar using the three stages of compression.
The HGRn or LD control unit may receives nitrogen at up to 350 bar and controls the set up pressure required into the cavity during the complete injection cycles. The last stage in the Control Gas injection system involves the gas nozzles, which are fitted inside the mould cavity at precise locations that are previously established at the design stage. These gas nozzles may be separately controlled as there are the possibility of having several gas injection channels, a fundamental feature of the CGR control units.
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