May 23, 2019 the calculator will calculate the load on the sling. The crosby sling calculator will compute the volume and the weight for the load, which can be viewed in the app, and the results can be emailed as a pdf. A sling load is an external load suspended below a helicopter transport of external loads during flight. It is your responsibility to assure that the slings you use are appropriate for your application. The liftall slingleg length calculator has been designed to assist you in selecting the appropriate size slings for your lifting applications. Lifting sling load and angle calculator rigging calculator.
In order to be a sling load inspector, like sablan and woods, one must be a graduate of air. You will need a sling or slings with a rated capacity equal to or greater than the rated capacity required for the corresponding rigging technique. Pdf introduction to sling load tension calculations. The free version of the sling calculator provides 9 calculators for computing volume and weight of a load. This update includes a brandnew user interface to help you find all the shows, movies, and games you love, more easily. If the weight is too great, the sling may break and. Crosby sling calculator is a software application that allows you to calculate a loads center of gravity, and computing the volume and weight of a load. For calculating the load s center of gravity, you can choose between two different methods. Application of slings for lifting considerations and sling lifting load calculations bottom. Features that affect the rated capacity of the sling and that shall be considered in calculating the design factor are. Slingpro calculator for wire rope lifting sling design load. If angle alpha is measured between the vertical line as with gravity force, and.
To download, install and use sling length load calc, your iphone, ipad, or ipod touch will need to be on ios 9. Use the following calculator to determine the rated capacity required by the sling s. But when a sling is lifting at an angle, as a two legged sling will, the load increases. Use the mat calculators to take the guess work and confusion out of proper crane matting. All the user needs to do is open the solver and hit run. When slings are used to lift loads, safety professionals must ensure the weight does not exceed the safe working load limit wll of the sling. If you have a remainder, always round up to the next whole number. Variation of chain sling leg loading with leg angle for a load of 10t. Browse our crane load chart, and specification database of over 1,000 crane models. Sling pro is an excel spreadsheet for the design of 4 leg wire rope and chain lifting slings in accordance with dnv and en onshore and offshore international codes. The ld calculator by paul pelletier software the ld calculator is a small application dedicated to people who work in the lighting industry. Identify the components and describe the characteristics of wire rope and synthetic slings.
For synthetic web and round slings in kgs for normal use and equally loaded slings to en14922. Person appointed by the responsible manager or designee to direct critical or preengineered lifts. Bullivants load calculator help calculating a lift, wll. The vertex of the sling set is considered to be the origin point. Application for detailed calculation of cutting data and costsavings. The spreadsheet can be used as a calculator to design or calculate the load capacity of a 4 leg sling. Working load limit wll the working load limit rated capacity is the maximum load, which at any time or under any condition should ever be applied to chain or sling components when the load is evenly applied in direct tension to an undamaged straight length of chain, strap or fittings. Based on australian standards calculate the appropriate sling and working load limit for a lifting application. The download was scanned for viruses by our system. Mechanical advantage ma load resistance divided by the winch capacity. Fell free to consult the sling angle factor chart for rigging calculations. Take the total weight of the load and divide this by the number of legs supporting the load. Thank you for downloading crosby sling calculator from our software library. Take the guesswork out of how much force is exerted on a sling when making a lift with two or more lifting straps.
Sling calculator mobile app now available, search for sling calculator and download for free. The application sling length load calc was published in the category education on apr 03, 2020 and was developed by jennifer tidy. The load must also have certified lifting points or be relatively easy to sling. Mobile app now available, search for sling calculator and download for free. Lightest and strongest slings available, repairable, overload indicators, low stretch, longest lasting sling. For calculating the loads center of gravity, you can choose between two different methods. Sling load calculator 2019 app for iphone free download.
Crosby sling calculator free version download for pc. No chain sling should be used if the angle from the vertical exceeds 60. For determining sling tensions, you can choose one of four common bridle configurations, specify the load s dimensions, directly specify or calculate the weight, and indicate the hitch parameters. To calculate the load on a particular sling leg proceed as follows.
Nov 10, 2016 the hardest part is making sure the load is set right, and it takes a lot of attention to detail. The length of the sling from the hook to the attachment point. It is designed for ease of use with graphical instruction for the calculation of dd ratios of wire rope slings, sling tension calculations for symmetric and. Basket o n ep l y 1 1,600 1,280 3,200 2 3,100 2,480. Safe working load swl of any mobile crane depends on the operators skill, condition of the ground, boom length, the radius of rotation while lifting the load, the inclination of the boom to the verticle and outrigger blocked or free. Know the working load limit for alloy chain, synthetic, and wire rope slings. Sling tension in heavy lifts with quadruple sling arrangement.
Online engineering calculators and equation tools free. The download is provided as is, with no modifications or changes made on our side. Sling load operations are complex, and involve training and certification courses. Demonstrate how to calculate the load on the sling using the load angle factor for various load angles. Get sling load calculator 2019 for ios latest version. Brandt group provides sling load training blocks for military, other government and private training purpose. Lifting sling load equations and calculator engineers edge.
Sling tension results are displayed in the solver results box. Load on each leg of sling load 2 x load angle factor. Sling load calculator for android free download and. The version of crosby sling calculator you are about to download is 5. Pipe support calculator the fast, easy, dynamic basic pipefitter calculator. Way more information than you ever wanted on how to fell a tree. In a vertical lift, where the sling is connected at each end and hanging vertically, it can lift exactly the number specified on the tag. It provide an array of tools to calculate an automated various daily task such as dmx addresses, current load, photometric, rigging formula and a lot more.
Load limit mobile app overhead lifting charts and definitions. Crosby sling calculator is a software application that allows you to calculate a load s center of gravity, and computing the volume and weight of a load. William hackett sling calculator is a free app that lets you configure your chain or wire rope sling by taking you through a number of steps. Calculate common rigging and load formulas quickly and easily with the various sling and load calculators. Pdf when slings are used to lift loads, safety professionals must ensure. For example, assume a 2000 pound load is to be supported by 2 legs of a sling. Download sling safety and enjoy it on your iphone, ipad, and ipod touch. Feb 18, 2017 a simple guide to calculating the required length of slings for balanced loads. Once completed, the sling specification can be viewed along with a 3d image of exactly how the sling will look. Download this app from microsoft store for windows 10 mobile, windows phone 8. Lift point locations are measured relative to the origin.
Military hand and arm signal given to a helicopter pilot when their ropesuspended cargo is liable to cause the aircraft to go out of control. It is issued by holding the left arm out horizontally hand in a fist, knuckles up and then waving the right arm at the elbow so that the knuckles pass under the left elbow in a cutting motion. Bullivants slinging safety is a sling calculator and reference point for riggers. Crosby sling calculator for pc free download windows. Application designed to determine the tensions and dimensions in a rigging arrangement considering two and three lifting points. The calculator will calculate the load on the sling. The personincharge must be present during the entire lifting operation and must have experience in handling similar types of equipment. Roarks formulas for stress and strain for membrane stresses and deformations in thinwalled pressure vessels. The liftall sling leg length calculator has been designed to assist you in selecting the appropriate size slings for your lifting applications. The lowest slings that attach to the load will have shackles added depending on where the cg of the load is, this allows the load to pick level as well as not damage the structural integrity of the equipment being lifted. Rigging formula long load resistance lr vehicle weight, plus the cargo weight, times the mire factor, minus reduction factor. Presented by kevin bennison lead trainer and managing director of swl training ltd.
Working paper pdf available april 2015 with 11,837 reads how we measure reads. Containing 10 calculators, this app is packed with utilities to help you determine the working load limit wll or the diameter of your sling in wire rope, chain, hmpe fibre rope or synthetic materials. Any smooth figure of revolution if r 2 is less than infinity uniform internal or external pressure, q forceunit area. An additional 6 calculators are available via inapp. Lift points are assumed to lie in a horizontal plane. All multileg chain slings exert a horizontal component of force, which increases as the angle from the vertical becomes greater.
We also recommend you check the files before installation. Explain the proper use and limitations of the various rigging equipment and hardware wire rope, synthetic web slings, shackles, eyebolts, hooks, etc. Weight of load input the weight of the load to be lifted by the sling. You can also calculate needed sling capacity if you choose safety factor and load, or calculate load that you can hang if you choose safety factor and sling. Slings should have a minimum design factor appropriate to the type of material asspecified in the appropriate section. Flat eye type 3 ee measured pull to pull when flat width in rated capacities lbs. On every sling, the tag shows the wll for different configurations. Feb 03, 2020 the calculator will calculate the load on the sling. Safe working load is generally tabulated in the load chart of the crane. The bullivants load calculator for iphone, ipad and android.1074 427 408 306 1167 172 1177 808 568 1372 1399 1322 284 508 700 374 1132 1370 140 182 763 1309 1310 1079 719 105 216 1260 797 815 1039 460 690 182 478 29 11 14