1.Brief introductions of KHYD140 electric rock drilling rig for coal mine

KHYD140 electric rock drilling rig is a tool for rock blasting hole.

·electric rock drilling rig should be equipped with drilling stand, and can be horizontally forward or inclined upward to drill in any direction.

·In order to prolong the service life of drill bits and improve the working conditions of operators, water draining powder is called wet drilling.

·In the operation of drilling rig, we only need to operate the hand wheel, and the electric motor rock drilling rig can push itself forward and return quickly.

2.Specifications of KHYD140 electric rock drilling rig for coal mine

Model KHYD140

Rated output power of electric motor kw 5.5

Rated voltage of electric motor v 380

Rated frequency of electric motor hz 50

Rated current of electric motor a 11.6

Motor rotating speed r/min 1440

Motor phase number three phase communication

Rated working mode continuity

Drilling speed mm/min 280

Maximum axial thrust n 12000

Borehole diameter mm 42-80（rock）

80~100（coal seam）

Hardness range protodikonov`s scale of hardness f<10

Maximum drilling depth m 20（rock）

30~80（coal seam）

Weight of drilling rig (excluding runways, drill pipes, drills) kg 100

Cable specifications equipped by buyer U 3x4+1x4