BM-100N

Raise Boring Rig, BIG MAN series

BM-100N

Key Feature
Raise boring

Descriptions :
The BM-100N has been assuming the core position among the BM series since its launch in the late 1960s.

Model		BM-100N
Reaming dia.	mm	1,750
Spindle rotation	rpm	57
Torque	kN-m	70
Thrust	kN	1.100 (Push) / 1,600 (Pull)
Power unit	kW	90-3.7P
Drill unit size	mm	4,540 x 1,640 x 1,150
Control unit size	mm	800 x 900 x 1,250
Power unit size	mm	2,700 x 1,100 x 1,150
Weight(Drill unit / Control unit / Power unit)	kg	13,000 / 50 / 21,000
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 first, a small vertical shaft is drilled toward the mine to pass the rod exclusively for Big Man. 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.