Used for drilling hole in hard coal tunnel and coal-rock tunnel with strong hardness.
Designed on the base of our original portable pneumatic drilling machine.
Advantages: easy operation, stable action, and no anti-torque through prop supporting the body weight. Comparing with the portable pneumatic drilling machine, it has larger torque and power.
Especially used for drilling hole in hard coal tunnel and coal-rock tunnel with strong hardness.
MODEL PARAMETER | MQTB-70/1.7 | |||
SUITABLE PRESSURE? (MPa) | 0.4 | 0.5 | 0.63 | |
RATED TORQUE? (N.m) | 45 | 70 | 90 | |
RATED ROTATE SPEED? (r/min) | 200 | 240 | 270 | |
LEG PUSHING POWER (kN) | III | 4 | 5 | 6.4 |
II | 3 | 3.7 | 4.7 | |
I | 2.1 | 2.6 | 3.3 | |
IDLE PUSHING SPEED (mm/s) | ≥320 | ≥400 | ≥480 | |
MAX OUTPUT POWER (kw) | 0.94 | 1.7 | 2.5 | |
IDLE RATATE SPEED? (r/min) | 600 | 780 | 860 | |
START TORQUE (N.m) | 86 | 100 | 125 | |
STALL TORQUE (N.m) | 90 | 110 | 140 | |
MAX LOADING TORQUE(N.m) | 80 | 95 | 110 | |
AIR CONSUMPTION (m3/min) | 2 | 2.5 | 3 | |
NOISE (dB(A)) | LEVEL | ≤90 | ≤90 | ≤90 |
POWER | 110 | 112 | 115 | |
WEIGHT (kg) | 35 | |||
MAX.HEIGHT (mm) | 3055 | |||
MIN. HEIGHT (mm) | 1255 | |||
