Each installation is delivered with an instruction and operation manual in english. Crystal multipoint calibration procedure for stressing jacks glrco1 1. Telescopic strand guide tubes through the full height of strand jack to prevent buckling and birds nesting of strands inside of the jack. Annexurei technical specification of strand jack for. Pre cast deck should be launch by strand jack or rr hydraulic. China high tonnage heavy duty lifting strand jack, find details about china strand jack animation, lifting strand jacks from high tonnage heavy. Hydraulic jacks threaded ram double acting general.
Olmsteds system keeps the strands coiled and only allows the length needed for each lift to be deployed. Annexurei specification of strand jack for heavy lifting 1. Crystal multipoint calibration procedure for stressing. Corrosion protection to all exposed and running surfaces for long life and suitable for use in marine environment of jacks. A strand jack essentially comprises the lifting cylinder and. Hsl50006 strand jack hslseries, heavy lifting strand jacks strand jacks enerpac strand jacks are the strand jacks of choice for customers seeking precise synchronous control with heavy lifting capacity in an economical, compact, and reliable foot print. China wholesale 60600 tons hydraulic strand jack system. Is it possible to toggle a different kind of sprite selection. Do you have a job that requires a specific capacity.
This is a suitable concept for a single heavy lift during a project, for example using mammoets msg system. A strand jack is a system similar to a jack, however in this case the load is not pushed up, but the jack pulls up a bundle of wires, which is called a strand. Strand jacks ideal for continually lifting heavy loads precisely over long distances a strand jack can be considered a linear winch. Strand jacks are mainly used with towerlift system. It is a modular system that consists of setting up a jack and a. Hello, i love the jack editor and have been using it constantly to work on my mod occultscrim for hl1.
The farm jack is also known as a hilift jack or railroad jack. A strand jack is a specialized hydraulic jack that grips steel cables. Mono jack is the tensioning jack for single strand stressing, with strand. Strand jacks, strand jack for construction, 200t hydraulic jack manufacturer supplier in china, offering strand jacks construction sv sj, clp1002 model hydraulic jack with local nut, 1837 nm. Pdf a heavylift scheme has been developed for the erection of the 88 m long steel.
To comment on this paper, please email up to 500 words to the editor at. A mechanical jack employs a screw thread for lifting heavy equipment. Mcmillan engineering group can design and manufacture a multi strand jack to suit. Pdf the 4000 tonne lift of stonecutters bridge steel backspans, h. China high tonnage heavy duty lifting strand jack china strand. Annexurei specification of strand jack for heavy lifting.
China strand jack lifting china strands lift, hydraulic lift. C viii 0 1014 c viii 0 1014 strand lifting can be used to lift or lower almost any load, regardless of its height. Other strand jack systems usually have the strands hanging free from the jack instead of being coiled as shown. Prestressing jacks mono strand pre stressing jacks. A strand jack also known as strandjack is a jack used to lift very heavy loads for construction. Above and below the cylinder are anchor systems with wedges that grip the strand bundle simultaneously, this is how the strand jack. The result is a durable, lightweight, and compact stressing jack.
Powerstress 25t lightweight mono strand stressing jacks. Power stress mono strand stressing jacks are front gripping jacks suitable for 10, 12. Grippers special wedges used in the single strand jack to hold the strand during the stressing operation. These attributes make the 6dahseries the jacks of choice for elevated construction projects. Enerpac strand jacks are the strand jacks of choice for customers seeking precise synchronous control with heavy lifting capacity in an economical. New quotes of sourcing request 0 manage products edit my showroom sign out. Strand jack dimensions and specifications type 3 type 4 capacity 900 t 900 t working pressure of the cylinder 400 bar 400 bar stroke 400 mm 400 mm strand type dyform dyform strand diameter 18 mm 18 mm max. This is particularly true when heavy loads need to be moved. Jack, monostrand a mechanical device normally hydraulic used to apply force to a single strand. In a strand jack, a bundle of steel cables or strands are guided through a hydraulic cylinder, above and below the cylinder are anchor systems with wedges that grip the strand. Sliding gantries operate more slowly, move on skid shoes, and use strand jacks for lifting. Dorman long technology strand jack systems strand jacks, power packs and control systems. Pjm industrial offer 10t, 25t and 30t mono strand prestressing jacks or pre stressing jacks.
The strand jacks employ a strand management system consisting of a strand guide and recoiler. Dlt strand jack systems brochure dorman long technology home. Hydraulic jacks providing you the best range of threaded ram double acting general purpose jacks, aluminium general purpose threaded ram jacks, aluminium general purpose plain ram jacks, bar stressing jacks, multi strand jacks and pile testing jacks. Application of sand jacks to temporary wedge the precastprestressed beams of a 450 meters x 2 twinlane bridge, until the crossbeams concrete matured to finally bear the entire weight. Slide the jack forward to release the jack grippers and remove the jack from the strand.
Strand jacks the strand jack lifting technique originates from the concrete post tensioning principle think of it as a linear winch. Strand jacks are recognized as the most sophisticated lifting devices currently available. Stressing equipments is an essential part of post tensioning prestressed concrete work. Mammoets strand jacks offer faster and more efficient routes for transporting heavy objects horizontally or vertically, even in situations where the amount of available space is limited. Mammoets strand jacks offer faster and more efficient routes for transporting heavy objects horizontally or vertically, even in situations. A strand jack also known as strandjack is a jack used to lift very heavy e. Other strand jack systems usually have the strands hanging free from the jack instead of being coiled as. In a strand jack, a bundle of steel cables or strands are guided through a hydraulic cylinder. In a strand jack the steel cable or strands are guided through a hydraulic. The language has been changed due to your browsers language settings. By means of hydraulic cylinders and steel wires strands, the heavy load component is lifted to the required height or pulled skidded to a certain position. A strand jack is a hollow hydraulic cylinder with a set of steel ropes the strands in the name passing through the open centre, each one passing through two clamps one mounted to either end of the cylinder. Strands lift, hydraulic lift, strand lift manufacturer supplier in china, offering strand jack lifting, clp1002 model hydraulic jack with local nut, 1837 nm sqaure driven hydraulic torque wrench and so on. The strand jack lifting technique originates from the concrete post tensioning principle.
650 1242 1093 180 308 565 1181 1319 628 433 1236 1083 1497 1516 1091 696 949 1166 511 1095 510 813 206 1528 405 578 1257 588 154 1122 251 441 1283 221 218 1112