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Still as part of the program to optimize the performance of the pumping units, the technical department of Aerotecnica Coltri has redesigned the shirt-holder cylinder of the third stage of the pumping units MCH 8, MCH 11, MCH 13, MCH 16, MCH 18, MCH 21 and MCH 23.

The main effect of this solution can be found in the better cooling of the entire stage.

The new solution will be introduced into production with die-casting technology starting from September.