It consists of QYB-0.45/70 Pneumatic Oil Pump and YDC cable tensioner.
The pneumatic oil pump feeds power of high-pressure oil to the cable tensioner. The key technology of the pneumatic oil pump is advanced oil supply by cycloidal pump and piston pump jointly, and with features of large delivery capacity, high efficiency and easy maintenance. Apart from above items
Fitting for stressing force bolting works in coal mine, tunnels and bridge. Its oil cylinder adopts special steel making it large tensioning power, reliable, well sealed and much durable, and easy to maintain and operate.
PARAMETER | MQ15-180/52 | MQ18-250/63 | MQ15-120/40 | MQ22-370/63 | ||
HOST SYSTEM | RATED EXTEND STRESS(kN) | 180 | 250 | 120 | 370 | |
JACK RATED PRESSURE(MPa) | 52 | 61 | 38 | 63 | ||
CABLE DIA.(mm) | 15.24 | 17.8 | 15.24 | 21.8 | ||
EXTEND-RETRACT JACK | JACK TYPE | YDC-180/150 | YDC-250/150A | YDC-120/150 | YDC-370/125 | |
CYLINDER DIA.(mm) | 75 | 80 | 70 | 100 | ||
JOURNEY (mm) | 150 | 150 | 150 | 125 | ||
CENTER HOLE DIA.(mm) | ≤16.5 | ≤19 | ≤16.5 | ≤25 | ||
WEIGHT(kg) | ≤18 | ≤21 | ≤16 | ≤29 | ||
PNEUMATIC OIL PUMP | MODEL | QYB-0.45/70 | QYB-0.45/70 | QYB-0.45/70 | QYB-0.45/70 | |
RATED WORKING PRESSURE(MPa) | 70 | 70 | 70 | 70 | ||
RATED FLUX(L/min) | 0.35MPa≥13.9, | 0.35MPa≥13.9, | 0.35MPa≥13.9, | 0.35MPa≥13.9, | ||
7MPa≥1.7, | 7MPa≥1.7, | 7MPa≥1.7, | 7MPa≥1.7, | |||
70MPa≥0.45 | 70MPa≥0.45 | 70MPa≥0.45 | 70MPa≥0.45 | |||
OIL AVAILABLE CUB.(L) | 13 | 13 | 13 | 13 | ||
WEIGHT(kg) | 33 | 33 | 33 | 33 | ||
OIL PRESSURE(MPa) | 20-70 | 20-70 | 20-70 | 20-70 | ||
PNEUMATIC | AIR PRESSURE(MPa) | 0.4-0.7 | 0.4-0.7 | 0.4-0.7 | 0.4-0.7 | |
AIR CONSUMATION(L/min) | 1.2 | 1.2 | 1.2 | 1.2 | ||
NOISE PRESSURE LEVEL (db(A)) | ≤90 | ≤90 | ≤90 | ≤90 | ||
