Lifting for catalist cooler by strand jack 30march2014 3d. Strand jacks are specially configured hydraulic jacks, which can give continuous pulling or lifting movement. References subcommittee on new highway material 1990 ground anchor inspectors manual, in. The full range of ram travel should be tested as well as the effect of offcenter loading. Strand7 free finite element analysis fea demo software. During lifting operation the strand jack can be fully dismantled for repair with load held in bottom anchor. Dorman long technology limited dlts3000 modular jacking tower system page 9 of 16 v2. Install strand jack on position, according to engineering drawing. Banded elastomeric bearings with sliding interface steel roller bearings mechanical pot. In addition to the jack maintenance requirements listed in items i 5, particular care must be taken with the lifting or pulling cables.
Capacities 6dahseries, 30ton jacks, stress strand up to. 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. The following sections give a brief introduction to each type of jack. Dlt strand jack and climbing jack systems elevator engineering. A mechanical jack employs a screw thread for lifting heavy equipment. Systems and parts the 6dahseries jacks can be purchased as single complete units with pump, hoses, and gauge. Enerpac strand jack systems are available from 34 up to 1124 ton capacity. Start position and step 1 of the jack down cycle the start position see figure 12. A wide variety of strand jack prices options are available to you, such as hydraulic jack. Lifting steam drum by strand jack in 3 types of connection.
For use with smaller strand, jack grippers of diff erent sizes are available. For lifting applications enerpac strand jacks are calculated with a 2. Strand jack sign up for new stories, news and personal offers hareket catalog download our online catalog. Ale strand jack skidded loadout application example 360p.
For lifting applications enerpac strand jacks are calculated with a 2,5 safety factor against breaking load to working load. General arrangement drawings of these strand jacks and fixed anchors are given on the following pages. Dlt strand jacks 15 to 1672 tonnes capacity per jack. It performs a similar function to a standard crane, but is much smaller. Annexurei specification of strand jack for heavy lifting. We manufacture strand jacks from 15 tonnes capacity per jack though to 1672 tonnes capacity per jack, together with power packs and control systems to enable controlled lifting of heavy objects at up to 80 lifting points or more, and with lifting speeds usually of between 5 50. The strand jack is positioned on a support beam vertically on top of the location to where the load has to be lifted. Strand jacks provide a compact and cost effective solution for handling heavy thruster units and we have also developed a system of modular power packs and jacks that. Annie besant road, worli, mumbai 400018, maharashtra india. The strand jack lifting technique originates from the concrete post tensioning. Hydraulic system for strand jack exclusive china jiangsu. To start with the upper anchor grips the strands, and the hydraulic cylinder forces the anchor upwards together with the strand and the load connected to it.
Strand jacks are recognized as the most sophisticated lifting devices currently available. Dlt strand jacks operating sequences free download as powerpoint presentation. Prestressed anchorpost tension systemprestressed concrete. An innovative and complicated strand jack lifting technology was applied to floatover installation of dpp integrated topsides in south china sea. Mar 04, 20 hydraulic strand jacks heavy lifting done safely. Our standard strand jacks range from the single strand dls15 through to the 66 strand dl s1022 as summarised below, and are all designed to be suitable for use with both 18 mm 7wire drawn strand or 15.
Strand jack heavy lift brochure20100414 united states army. A complete failure of a floatover installation with strand. Hydraulic jacks are small devices that can do a large work using hydraulic pressure. Hydraulic strand jacks the strand jack lifting technique originates from the concrete post tensioning principle. Jack for pdf provides all features to edit any pdf including password protected ones. Pdf the 4000 tonne lift of stonecutters bridge steel backspans, h. The most common form is a car jack, floor jack or garage jack, which lifts vehicles so that maintenance can be performed jacks are usually rated for a maximum.
A combination of a number of strand jacks can lift very heavy loads of thousands of tons, whereas the jack itself weighs less and occupies only a very small footprint. Reduces overheat and increases reliability of the system. Strand jack technology offers comprehensive control of a lift including. The 18mm strand can work with a dynamic load of 155kn.
A jack, screwjack or jackscrew is a mechanical device used as a lifting device to lift heavy loads or to apply great forces. The strands themselves can vary in number and thickness, but dictate the jacks safety and ability. A strand jack also known as strandjack is a jack used to lift very heavy e. The lock devices are shown in bluewhen the wedges are open. The sequence of operation is illustrated with the lock devices shown inred when the wedges are closed. In a strand jack, a bundle of steel cables or strands are guided through a hydraulic cylinder. Pdf a heavylift scheme has been developed for the erection of the 88 m long steel deck sections around the towers of stonecutters. Details shall be as per annexure enclosed in the tender. For use with smaller strand, jack grippers of different sizes are available. Discussion the strand jack uses a hydraulic system powered by either electricity or diesel. Thruster installation and replacement using strand jacks. Enerpac strand jack systems are available from 30 up to 1. Due to initial failure to lower the four outer support legs, an unfortunate chain of events occurred thereafter, thus yielding a complete failure of the floatover installation never happened in history.
Lifting steam drum by strand jack 3d cad model library. The limitations are that models cannot be saved and models with more than. All the functionality of the full version is available. The jack operates in the manner of a caterpillars walk. Instal module hrsg 300 ton by skidding and strand jack. Ale strand jack skidded loadout application example duration.
Pjm industrial have been supplying mono strand and multi strand prestressing jacks for prestressing concrete since 1999. Strand jack strand guide strand jack accessories enerpac. Provides a guide for the strand as a strand jack lifts the load. Concrete prestressing jacks for sale hydraulic jacks for pre stressing concrete.
Olmsteds system keeps the strands coiled and only allows the length needed for each lift to be deployed. Dlt strand jacks operating sequences anchor equipment. Dlt strand jack, strand jack manufacturer, strand jack purchase. Discussion the strand jack uses a hydraulic system powered by. Strand jack hydrospex strand jacks, 100 ton strand jacks. Hydraulic strand jacks strand jack systems enerpac. The grabcad library offers millions of free cad designs, cad files, and 3d models. Hydraulic gantry, strand jack, slide system power point.
Despite its smaller size and footprint, the strand jack is capable of lifting a much heavier load than the average crane. Fieldproven tools for mono strand tensioning durable, fieldproven designs, the ptj and da models feature softgrip ergonomic handles reducing operator fatigue singleacting ptj models, with springseating and optional powerseating, are equipped with the enerpac rc series cylinders with a 10 stroke, ideal for slabongrade applications. Kinks in the strands may jam inside the jacks or cause the strand to birdcage inside the jack. During actual field assembly, refer to method of works install and erection drawing rigging plan. Telescopic strand guide tubes through the full height of strand jack to prevent buckling and birds nesting of strands inside of the jack. It is the best choice for the synchronous hydraulic lifting systems and synchronou. Eight inch and 12 stroke jack assemblies are in stock for immediate delivery. Ppt dlt strand jacks operating sequences powerpoint. Warner allen a point of law somerset maugham not guilty will scott the idols eye sapper the perfect crime seamark the intruder augustus muir castiron. Increase the function of frequency control based on conventional hydraulic proportion power system, improve the utilization of energy. Other strand jack systems usually have the strands hanging free from the jack instead of being coiled as shown.
Connects strand jack to stator generator by using recommended connector. Dlt have supplied and operated many strand jack systems for the installation and replacement of thruster units weighing up to 50 tonnes on drilling ships and floating platforms. For more information, select the following product pdf. All content included on our site, such as text, images, digital downloads and other, is the property of its content suppliers and protected by us and international laws. Annexurei specification of strand jack for heavy lifting 1. Dlt strand jack and climbing jack systems free download as pdf file.
Jacks, industrial rollers, air casters, and hydraulic. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and. Chesterton the dream agatha christie the ginger king a. 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. All our systems are supplied with a comprehensive manual for the operation. Annexurei technical specification of strand jack for heavy. For full details of our strand jacks, power packs and control systems please download our. Join the grabcad community today to gain access and download. The coordination between cylinder and anchor heads is done using computer software.
The load is connected to the strands by a suitable block. Heavy lifting system with 11 x 3720 kn strand jacks, 6 pumps, a master. A strand jack is a heavyduty piece of machinery used to lift and lower heavy loads. Rust deposits on the strands form hard packed areas inside the gripping mechanism during use. Enerpac hslseries, strand lifting jacks tensioning jacks. Strand jack applications engineered lift using multiple jacks by mammoet usa. To start lifting the bottom clamp releases the wire and the. Annexurei technical specification of strand jack for. The number and type of strands used in a jack determine the safe working load of a jack.
Install hagun gantry crane, according to engineering drawing. Dlt strand jacks operating sequences 1 dlt strand jacksoperating sequences 2 strand cable safe lifting capacity 15. A multiwire or strand stressing jack having an annular stressing cylinder arranged within a cylindrical outer casing and a stressing head attached to the leading end of said stressing cylinder, said stressing cylinder comprising a main plate accommodating gripping devices, a leading plate and a trailing plate operatively associated with said main plate, and means for moving said gripping. This app allows to edit the text of the document and add your own, as well as you can add different figures. Lifting for catalist cooler by strand jack 30march2014 this file by xref. Complete strand jack load tested and certified to 125% of safe working load double acting minijacks used for openingclosing the grips in the top and bottom anchors, which can be fully replaced in the middle of a lift if necessary without dismantling the strand anchors or cutting the strand. Offered strand jack system model as per specification must be in current manufacturing range. Lifting for catalist cooler by strand jack 30march2014. Each installation is delivered with an instruction and operation manual in english.
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. Installation engineering and execution of offshore. The strand jacks employ a strand management system consisting of a strand guide and recoiler. Ale strand jack skidded loadout application example 360p by ale heavylift on vimeo, the home for high quality videos and the people who. Strand jacks offer a compact, economic and highly controllable solution for heavy lifting and lowering operations. Feb 03, 2015 ale strand jack skidded loadout application example duration. In a strand jack, a bundle of steel cables or strands are guided through a. The grippers are hydraulically released from the strand when the jack is fully retracted. Strand jacks are mainly used with towerlift system. The computeraided design cad files and all associated content posted to this website are created, uploaded, managed and owned by third party users. Includes bibliographical references the vampire of the village g. Nov 17, 2015 wolf hunt by jeff strand in djvu, epub, fb3 download ebook.
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