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Hydraul Prestress Hydraulic Cylinder Post Tension Jack for Use in Bridge Construction1
Hydraulic ToolPost Tension JackHydraul Strand Jack
Shaanxi Saifusite Mechanical Electrical Equipment Co., Ltd.
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Product Description Product DescriptionPost tension jackPost tension jack is mainly used for group anchor overall tension. Post tension jack is easy to operate, reliable in performance, and maximizes the savings of steel strand.Post tension jack is mainly used in bridge engineering construction with prestressed anchors and tension equipment. Post tension jack is a double action jack which uses double hydraulic cylinder to tension prestressed bar and top pressure anchor.Product Parameters ItemTypeNominal tensile forceKNrated oil pressureMPaTension piston areaM2Return piston areaM2return hydraulicpressure MPaDiametermmSstroke mmWeightKgSize mmYCW42B420510.825×10ˉ20.196×10ˉ2<25Ф6812026Ф156×252YCW60B600451.334×10ˉ20.449×10ˉ2<25Ф6020060Ф191×360YCW65B650521.25×10ˉ20.236×10ˉ2<25Ф7815050Ф192×310YCW70B694521.334×10ˉ20.449×10ˉ2<25Ф6020060Ф191×360YCW100B980511.922×10ˉ20.535×10ˉ2<25Ф7720080Ф228×372 Working PrinciplePost tension jack working principle is as follows:when the Post tension jack is tensioning the prestressed steel bar, the oil nozzle of the tensioning cylinder enters the oil, the oil nozzle of the top pressure cylinder returns the oil, and the top pressure cylinder, the connection sleeve and the support sleeve are connected into one body to move right to resist the anchor ring; The tensioning cylinder, end cap nut, plug and piercing sleeve are connected into one to drive the tool anchor to move to the left of the tensioning prestressed bar; In the case of top pressure anchorage, under the condition of maintaining stable tension, the oil nozzle of top pressure cylinder is fed, and the top pressure piston, protective sleeve and top pressure head are connected into one body, and the clamp is strongly pushed into the anchor ring; At this time, the oil nozzle of the tension cylinder returns oil, the oil inlet of the top pressure cylinder, and the hydraulic return of the tension cylinder. Finally, the oil nozzle of the tension cylinder and the top pressure cylinder return oil at the same time, and the top pressure piston returns to reset under the action of the spring force.In order to ensure the accuracy of tension, post tension jack should be matched with oil pump, pressure gauge and external high pressure hose to calibrate "oil pressure value - output force". In the calibration, the active working state of the jack shall prevail, and the classification shall be recorded. The average value of the three measurements shall be taken, and the chart shall be made as the basis for the tension. Installation InstructionsPost tension jack1. Put the steel strand through the reserved corridor of the structure, and require the exposed length of the steel wire bundle to be 200-250mm longer than the working length of the jack at the tension end. The steel strand must be cut with a book grinder without loose head or "rough head", so as to avoid perforation difficulties.2.Cover the end of the wire bundle of the working anchor plate, and push it to the anchor plate, and fix it at the stop.3. Install the anchor clip: before installing the clip, use the steel ring to tie each clip together, and then push it into the cone hole of the anchor plate along the steel strand, and push it by hand until it does not move.4. Install limit plate: the limit plate is designed according to the working anchor plate and corresponds to the hole of the anchor plate.5.Install the jack: first, the end of the steel strand bundle is bound with wire pin, then the jack can be hoisted up and worn on the steel bundle, and the jack front end cover support mouth is set outside the limit plate. At this time the jack can be coaxial in.6.Install the tool anchor on the support port of the piston end. Company ProfilePackaging & ShippingFAQ Q1: Warranty terms of your machine?A1: One-year warranty for the machine and technical support according to your needs.Q2: Will you provide some spare parts for the machines?A2: Yes, of course.Q3: What about the voltage of products? Can they be customized?A3: Our standard voltage is 380V, 50HZ, and 3phase. The voltage can be customized according to your equipment. Q4: Which payment term can you accept?A4: 100% T/T( Decide according to actual situation)Q5: How long will it take to arrange production?A5: we can deliver the normal goods within 3-5 working days. Other nonstandard electrical items we will deliver within 25-30 days. Q6: Can you accept OEM orders?A6: Yes, with a professional design team, OEM orders are highly welcome. Q7: Which trade term can you accept?A7: Available trade terms: FOB, CIF, CFR, EXW, etc.
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