portable pneumatic roof bolter drill small volume, light weight, maintain, gear compressed air motor anti-explosive
portable pneumatic roof bolter drill is mainly used for operation in the gateway of rock hardness less than f6 or used in half tunnel of coal bed for coal mining roof bolter operation.
Main parameters
|
working pressure
|
Mpa
|
0.40.--63
|
|
rated air pressure
|
Mpa
|
0.5
|
|
rated speed
|
r/min
|
440
|
|
Nominal torque
|
N.m
|
35
|
|
stall torque
|
N.m
|
55
|
|
free running speed
|
r/min
|
≥1000
|
|
air consumption
|
M3/min
|
4
|
|
rinse pressure
|
Mpa
|
0.6--1.2
|
|
noise
|
dBA
|
≤95
|
|
overall weight
|
Kg
|
13.5
|