It consists of QYB-0.45/70 Pneumatic Oil Pump and YDC cable tensioner. The pneumatic oil pump feeds power of high-pressure oil t
It consists of QYB-0.45/70 Pneumatic Oil Pump and YDC Extend-Retract Jack. The pneumatic oil pump feeds working pressure liquid to the extend-retract jack, and the extend-retract jack bring stress for the bolting cable.
The Pneumatic Oil Pump is Driven by compressed air with characters of 2 stages increasing pressure, output high pressure oil, largely decrease labor intensity, enhance efficiency.
The YDC extend-retract jack if fitting for stressing force bolting works in coal mine, tunnels, bridge. With large tensioning power, reliable, well sealed and much durable, it is easy to maintain and operate.
PARAMETER/
MQ15-180/52
MQ15-250/63
MQ15-120/40
HOST SYSTEM
RATED EXTEND STRESS kN
180
250
120
JACK RATED PRESSUREMPa
52
63
40
CABLE DIA.mm
15.24
17.8
15.24
EXTEND-RETRACT JACK
JACK TYPE
YDC-180
YDC-250A
YDC-120
CYLINDER DIA.mm
75
80
70
JOURNEY mm
150
150
150
CENTER HOLE DIA.
mm
≤16.5
≤19
≤16.5
WEIGHTkg
≤18
≤21
≤18
NOISE
POWERdBA
≤112
PNEUMATIC PUMP NOISE PRESSURE 0.5mdBA
≤95
PNEUMATIC OIL PUMP
MODEL
QYB-0.45/70
RATED WORKING PRESSURE
MPa
70
RATED FLUX
L/min
0.35MPa≥13.7
7MPa≥1.7
70MPa≥0.45
OIL AVAILABLE CUB.
L
13
WEIGHTkg
33
OIL PRESSURE
MPa
28-70
PNEUMATIC
AIR PRESSUREMPa
0.4-0.63
AIR CONSUMATIONL/min
1.2
