compomix DI: dispensing system for composites processing

DOPAG developed the compomix DI specifically for use in infusion processes in the production of rotor blades for wind power generators. The metering and mixing system can be used for direct infusion process with a deviation of less than ± 1 % of the mixing ratio. Depending on the system configuration, magnetically-coupled, leakage-free pumps that are hermetically sealed at the drive end are used to feed hygroscopic hardeners. The metering system range for the processing of unfilled infusion resins combines highly accurate metering pumps with extremely fast control technology. Metering is carried out from a regulated by-pass so that the normal initial process of filling the mixing tube is avoided and the long distance between metering and mixing point does not impact the mixing ratio. In addition, the output rate can be changed during the meter- ing process at pre-defined levels – without exceeding the permitted tolerance limits of the metering ratio.