BM-600A

Raise Boring Rig, BIG MAN series

BM-600A

Primary Use :
Raise boring

Descriptions :
The BM-600A is the largest model among KOKEN Big man, BM series. This BM rig can perform a up-reaming drilling to reach as large as 6m in diameter and has had many experiences on jobsite since its launch in 2008.

Model		BM-600A
Reaming dia.	mm	6,121
Spindle rotation	rpm	50
Torque	kN-m	460
Thrust	kN	2,900 (Push) / 5,350 (Pull)
Power unit	kW	132-4P x 2, 37-4P
Drill unit size	mm	3,607 x 3,000 x 6,850
Control unit size	mm	1,200 x 900 x 1,050
Power unit size	mm	5,600 x 2,500 x 2,440
Weight (Drill unit / Control unit / Power unit)	kg	35,500 / 300 / 12,000
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 for passing the Big Man rod toward the mine. 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.