BM-150A

Raise Boring Rig, BIG MAN series

BM-150A

Primary Use :

Raise boring

Descriptions :
This BM-150A is a monumental model which commenced automated operation of raise boring for the first time.

Model		BM-150A
Reaming dia.	mm	2,070
Spindle rotation	rpm	55
Torque	kN-m	114
Thrust	kN	760 (Push) / 2,200 (Pull)
Power unit	kW	110-4P
Drill unit size	mm	7,205 x 2,106 x 5,520
Control unit size	mm	1,200 x 900 x 1,125
Power unit size	mm	3,000 x 2,000 x 1,600
Weight (Drill unit / Control unit / Power unit)	kg	15,000 / 100 / 45,000
Standard drill pump (Model MG-50)	Max. discharge rate 880 L / min, Max. discharge pressure 2.2 MPa

Reaming digging

To take advantage of the high power of Big Man BM600A, we have developed a φ6m reaming bit.

Big Man is installed on the rock above the mine, and at the beginning of the mine, a small vertical shaft is usually drilled to pass the Big Man rod. This is called pilot digging. After piercing the lower tunnel, remove the bit for pilot drilling that has penetrated and connect it to the reaming bit installed in the tunnel. The basic procedure of reaming excavation is to excavate the large diameter reaming bit with a big man.