Blast Hole Drilling Equipment

BLAST HOLE DRILLING EQUIPMENT

Self-propelled crawler-mounted electric roatory blasthole Drilling rig SBSH-250/270-32 is designed for drilling vertical and inclined holes at opencast mining.

The drilling rig provides drilling of holes with 160-215 mm in diameter and 40m in depth. Hole angle is 30 to vertical line. Preferably the drill is used for drilling rocks with hardness of 4-18 units.

SPECIFICATIONS

Parameters	Parameter values per Models
Parameters	SBSH-250/270-32	SBSH-250N
Basic bore dia, mm	270	250
Drilling depth, m	32	32
Bore inclination angle with ref. to vertical, deg	0; 15; 30	0; 15; 30
Bore rod length, m	8	11
Capacity at rock strength f=16 to 18, m/hr	13.5	13.5
Feed force upper limit, kN	400	350
Drill bit rated torque, Nm	6000	6500
Rotational drive power, kW	90	90
Rotational speed upper limit, min-1	150	120
Lifting and lowering speed, m/min	13	12
Compressor plant capacity, m3/min	40	32
Max. travel speed, km/hr	0.7	0.92
Max. gradient to be ovecame, deg	12	12
Supply voltage, V	6000	380
Weight (without spares), t	90	78