... . Its function is to supply the drilling hole with flushing liquor in order to carry the ... and the geology etc industry whose hole deep is within 1000 m. Also it can be used to ... , single acting piston pumpStroke70mmBore70mmPump speed (s.p.m)222,130,86,57,183,107,71,47Output volume ... dia (mm)50Discharge pipe dia (mm)32Drilling hole depth (m)Diamond core drilling < 1500Overall dimensions (mm)1840 ...