Percussion Reverse Circulation Drilling Rig

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, CJF-15

The CJF-15 percussion reverse circulation drilling rig is your rig of choice for deep foundation projects. To be specific, it is mainly used in large diameter cast-in-place pile construction and underground diaphragm wall construction for high rise building, water dam and bridge. The percussion drilling equipment is suitable for complex formations, featured by high drilling efficiency in gravel and rock formations.

Based on state of the art reverse circulation drilling process, the drilling rig comes with drastic boosting of efficiency and reducing of drill bit wear. Drill mast folds up and down quickly by means of hydraulic control. Hydraulic moving mechanism is also optional for easy movement.

Technical Parameters

CJF-15 Percussion Reverse Circulation Drilling Rig
Rated drilling diameter	1.5 m
Rated drilling depth	80 m
Rated drill bit weight	2.5 t
Drill bit impact stroke	1m
Drill bit impact frequency	40 times/min
Main hoist hoisting capacity	40 kN
Auxiliary hoist hoisting capacity	30 kN
Hoisting speed	35 m /min
Maximum mast load capacity	200 kN
Effective height of mast	8m
Hole clearing method	Direct and reverse circulation
Main power	45 kW
Transportations size (not including moving mechanism)	6.02x2.22x2.7 m