CJF-15 Percussion Reverse Circulation-Bohrgerät

CJF-15 percussion reverse circulation drill is mainly used in deep foundation engineering (tall building engineering, water conservancy project, bridge construction) construction of large-caliber cast-in place pile and construction of diaphragm wall. It can be used in complex stratum and have higher drilling efficiency in layer of gravel and rock strata. Because of adopting the technique of reverse circulation exhausting slag, this type has higher efficiency of construction at large amplitude than CZ Series of percussion drill and drill wear is better. YCJF-20/25 Percussion Reverse Circulation Drill is a big-bore Full Hydraulic Percussion Reverse Circulation Drill of our factory. It is mainly used for deep foundation project of making big-bore and grouting pile construction. And apply to various stratums, especially in gravel formation and terrane, it is better in drilling efficiency and drilling quality Technnical specificationsCJF-15YCJF-20YCJF-25Borehole diameter（mm）600-1500700-20001200-2500Depth of drill（m）808080Rated drill weight（t）2.568Impact stroke（mm）1000300-1300300-1300Impact frequency（n/min）400-300-30Main hoist elevating power（kN）40100100Auxiliary hoist elevating power（kN）303535Tool hoist eleating power（kN）122020Drill tower height（m）87.57.5Drill tower load（kN）200250250Power of main motor（kW）455575Transmission ModeMechanicalHydraulicHydraulicOverall weight（t）121419Boundary dimension（mm）6020×2220×29006500×2200×33007600×2800×3300