Prestressed Jack
Prestressed jack is a commonly used prestressed tendon tensioning equipment, which is widely used in prestressed construction projects such as highway bridges, railway bridges, hydroelectric dams, and high-rise buildings. Next, we will introduce how it works and how to use it.
Working principle: When tensioning the prestress, the A nozzle enters the oil, the B nozzle returns the oil, the connecting sleeve and the supporting sleeve are connected as one body, and the anchor ring is moved to the right; the tensioning hydraulic cylinder and the plug are combined with the core sleeve to drive The tool anchor wants to move left and stretch. When pressing and anchoring, under the condition of keeping the tensile force stable, the B nozzle enters the oil, the pressing piston, the protective sleeve and the pressing head are combined and moved to the left to force the anchor plug into the anchor ring.
Model No. | Pull capacity | Pressure | Oil effective area | Stroke | Hollow diameter | Size | Work area | Length | Weigth | |
Φ×L | A×B | C | ||||||||
(kN) | (MPa) | (mm2) | (mm) | (MPa) | (mm) | (mm) | (mm) | (kg) | ||
NSM-PSJ-65 | 650 | 44 | 14837 | 200 | Φ38 | Φ178×355 | 900×140 | 600 | 50 | |
NSM-PSJ-110 | 1100 | 47 | 23550 | 200 | Φ84 | Φ241×355 | 900×170 | 600 | 90 | |
NSM-PSJ-150 | 1500 | 48 | 32028 | 200 | Φ94 | Φ271×370 | 1000×185 | 650 | 110 | |
NSM-PSJ-200 | 2000 | 56 | 35796 | 200 | Φ110 | Φ297×380 | 1000×190 | 650 | 150 | |
NSM-PSJ-250 | 2500 | 52 | 48356 | 200 | Φ128 | Φ342×380 | 1000×220 | 650 | 180 | |
NSM-PSJ-350 | 3500 | 49 | 67824 | 200 | Φ165 | Φ416×380 | 1100×260 | 700 | 300 | |
NSM-PSJ-400 | 4000 | 52 | 81954 | 200 | Φ175 | Φ450×385 | 1100×275 | 700 | 380 | |
NSM-PSJ-500 | 5000 | 50 | 93965 | 200 | Φ190 | Φ510×520 | 1200×310 | 700 | 620 | |
NSM-PSJ-650 | 6500 | 51 | 127863 | 200 | Φ215 | Φ580×550 | 1300×340 | 850 | 950 | |
NSM-PSJ-900 | 9000 | 54 | 165876 | 200 | Φ280 | Φ680×580 | 1400×390 | 1000 | 1300 | |
NSM-PSJ-1200 | 12000 | 50 | 241039 | 200 | Φ285 | Φ785×620 | 1600×445 | 1200 | 1600 |
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