: Sling angle factor calculator The starting, or target angle for multiple leg slings should be 60 degrees from the horizontal. Do not sweat this one. Oct 19, 2025 · Easily calculate the sling angle factor and load per sling leg with this free Sling Angle Factor Calculator. Mar 1, 2023 · In conclusion, sling angles do matter. Oct 3, 2024 · Can the sling angle be greater than 90 degrees? Practically, sling angles are between 0 and 90 degrees. #hsestudyguideHow To Calculate Sling Capacity || How to Calculate Sling Angle Factor || HSE STUDY GUIDE Choke Angle - When lifting or turning a load rigged with a choker hitch, the angle at which a sling is turned back on itself can reduce it's capacity below what is listed for its choker hitch, if the angle is too severe. In industrial settings, the use of web slings is common for lifting heavy loads. The tension factor directly determines the load each sling leg must support. How to calculate your Chain Sling correctly To ensure safe lifting operations with your chain slings, it's essential to understand how the maximum load is influenced by factors such as tool dimensions and lifting angles. Have a question Note that the rated capacity of a 30° Basket is only one half that of a 90° Basket. 866 as per the chart. 1,000 pounds times 1. However, it’s essential to understand how to calculate the capacity of web slings to ensure the safety of both workers and the loads 4 Leg Hitch Calculator TOTAL LOAD WEIGHT: Pounds: Kilograms: Known Angle A: degrees from horizontal Calculate Reset NOTE: If the calculated Head Room is greater than the available Head Room, try typing in a smaller angle for Known Angle A. 866 = 3464kg Note:- if we consider a 60-degree angle for sling then the reduction factor is 0. Accurately calculate sling angle factors to improve EHS lifting operations and health and safety compliance at your workplace. The operation of this calculator is based on the following: The weight being lifted is symmetrically loaded, with the center of gravity directly in the center, and all leg lengths shall be equal. Use it as a sling angle calculator or two‑leg bridle calculator to visualize how moving the hook or widening pick points changes tension. Angles above 90 degrees would indicate an unconventional and potentially unsafe rigging setup. Understanding the effect of angles on sling capacities is a critical part of safe rigging. Below, we've compiled the necessary information to help you properly dimension your chain sling. Do not use angles less than 30 degrees! May 20, 2024 · Mode factors are the calculations used to determine the tension when lifting with two or more slings/chains at an angle greater than vertical. It helps determine the increased tension in a sling when the lifting angle is less than 90 degrees, ensuring safe and efficient lifting operations. Knowing and understanding sling angles could help you extend the lifecycle of your slings by putting the proper tension on them during a lift. The calculations cover load factors, sling A sling angle is a measure of the angle between the centerline of a sling and the length of either side of the sling. This blog will teach you to be prepared when lifting at an angle. Regular monitoring and accurate calculations can significantly reduce the risk of equipment failure and workplace incidents. When a sling is being used in a vertical position (a straight pull), a Working Load Limit (WLL) applies. Perfect for riggers, crane operators, and engineers. The math geeks have already provided this calculation for you below. Use this EHS calculator to determine sling load distribution and ensure safe, balanced lifting operations. Calculator for 2, 3 & 4-leg lift rigging arrangements. Frequently Asked Questions (FAQ) 1. Features that affect the rated capacity of the sling and that shall be considered in calculating Nov 1, 2024 · This calculator requires inputs like the sling angle, the number of legs (e. / 2) = 500 lbs for each sling. It is important for ensuring the proper and safe use of slings in lifting operations. This angle is crucial for maintaining the load’s stability and preventing accidents. Load Safety Insights Understanding load angle factors is crucial for preventing workplace accidents and ensuring safe lifting operations. If a bridle is designed with different leg lengths, it may result in different horizontal angles. Free online tools to calculate rigging angles, load weights, line tension, and lifting capacity. If the angle is less than 120°, you must adjust its Choker Hitch Working Load Limit by the Site Content MULTIPLE SLING CALCULATOR Calculates sling loads with 2 or more slings, at different angles for a given weight. Understanding sling angles is crucial to select slings to carry any given load. Ensure lifting safety with our accurate 2-leg sling calculator. Aug 15, 2024 · Learn more about the importance of calculating sling angles and how to find the right slings for your lifting tasks. g. 2. Nov 4, 2023 · 2 Leg Sling Calculation: Ensuring Safe Material Handling I. Lifting Sling Load Equations and Calculator Mechanics and Machines Calculations Menu Application of Slings for lifting considerations and sling lifting load calculations (bottom). The load on each leg must be calculated based on the position of the slings and the location of the lift’s center of gravity. Slings should have a minimum design factor appropriate to the type of material asspecified in the appropriate section. In this video you will learn about,tension on sling calculation method, formula for calculating load,formula for calculating tension on sling,lifting sling 2 Minute Tool Box Talk on the Effect of Sling Angles on SWL ABCS Safety Training Inc. Always consider the sling angle when making a lift. Using the Calculator 5. It is your responsibility to assure that the slings you use are appropriate for your application. The 3 Sling Bridle: Required sling length This calculator is used when 3 slings will be attached to a load with 3 equally spaced attachment points that are all an equal distance from the centre of gravity and an ideal sling angle is selected. Factors Affecting Sling Capacity Material Type and Strength Sling Angle Load Weight Environmental Conditions V. Distance from pick point on the load to COG. Oct 3, 2024 · The Sling Angle Factor Calculator is an essential tool for those in the lifting and rigging industries. A sling angle of 60° or more is preferred. Understanding and calculating the correct sling angle is essential for the safety and efficiency of lifting operations. This calculation aids in ensuring safe lifting operations and prevents overloading of the slings. 154=1154 pounds. What is the Lifting Sling Angle Calculator? The Lifting Sling Angle Calculator determines the load factor based on the sling angle. For example, sling angle factor charts are integrated to compute how tension increases as the sling angle decreases. Angularity Factor (AF) Although the known trigonometrical functions apply to all stress calculations, many trade publications and standards give specific sling strength calculation examples which one can follow. Sling angles and influence on capacity. Jan 14, 2019 · Desired sling angle. A precise load angle factor helps determine the effective load capacity and potential stress on rigging equipment. The Safe Working Load (SWL) determines the maximum weight a sling can safely handle during lifting operations. Calculate sling angles, load multipliers, and tension factors instantly with SlingCalc's free, browser-based sling angle calculator. Utilize the manufactures capacity charts and perform the simple calculations for angles that are not included in the charts. As the angle of the sling decreases from 90 degrees (vertical), the load on each leg of the sling increases. Sling Specification Tables - Sling tables throughout our site contain the Working Load Limits of slings rigged with these hitches at certain specified angles. The rated sling capacity needed is then 2,308 (1,154x2) pounds in basket capacity to safely lift the 2,000 pound load. A smart tool for lifting safety planning. This Jun 22, 2024 · A: The tension in sling legs is affected by the weight of the object being lifted, the distance from the hook to the center of gravity of the object, the height of the lift, the angle of the sling legs from the vertical, the number of sling legs, the strength of the sling material, and the safety factor. 93, and 90°-105° = 0. TO DETERMINE THE ACTUAL CAPACITY AT A GIVEN ANGLE OF LIFT, MULTIPLY THE ORIGINAL SLING RATING BY THE APPROPRIATE ANGLE FACTOR SHOWN. OR Length* (L) divided by height* Mar 22, 2024 · Several factors can impact the accuracy of sling angle calculations, including measurement errors in the sling’s height or length, the precision of the calculation tools (e. This free online rigging calculator helps you estimate sling angle, per‑leg line tension, and simple load sharing for common lifts. Factors you must consider include: Type of hitch/method of rigging Effect of angle on capacity chemically active environment Mar 11, 2025 · The Rigging Angle Calculator is designed to determine the angle between the sling and the horizontal plane when lifting a load. ASME B30. It calculates the force exerted on each sling leg based on the weight of the load and the angle formed between the sling leg and the vertical axis. e. Importance of Load Calculation Ensuring Safety in Material Handling IV. 4. 2) A 60 degree angle is a common benchmark, as it creates an equilateral triangle for easy reference. Knowing how to calculate the SWL is vital for preventing accidents and ensuring safe practices. Shallower angles significantly Nov 30, 2023 · The Load Tension Calculator is a tool designed to determine the tension in each sling leg when lifting a load using slings. Works with both metric and imperial units. Determine the sling angle as measured from the horizontal, and the corresponding tension factor (TF) from the effect of angle chart. Jan 12, 2021 · To gain a better overall idea of what a sling angle is and how to calculate it, read this detailed article, which provides an in-depth explanation. Learn how to calculate sling angles for safe lifting. If not considered, the rigging gear can be severely overloaded to a point of failure. The sling angle factor is a multiplier used to determine the increased load on a sling when it is used at an angle rather than vertically. Understanding the Basics What Are 2 Leg Slings? Key Components and Applications III. The Capacities for our lifting slings are based on a Design Factor of 5:1, Chain Slings are 4:1. , the sling load for two vertical slings is: (1000 lbs. This factor is crucial for calculating the actual tension in slings during lifting operations, ensuring safe working loads are not exceeded. , calculators or software), and assumptions made about the rigidity and uniformity of the sling material. |Understanding the effect of angles on sling capacities is a critical part of safe rigging. 9 now calls the horizontal sling angle the angle of loading. Lifting load calculator for precise sling forces, angles, and center of gravity. Ensuring accurate measurements and using reliable tools can help mitigate these factors. 3) To calculate sling capacity at a given angle, use the chart to find the reduction factor corresponding to the angle, and multiply it by the sling's rated capacity. Jul 17, 2023 · Example:- Sling (WLL) = 2000kg Sling angle = 60 degree No. 00, 105°-120° = 0. 78K subscribers Subscribed Jul 26, 2023 · Lifting Slings What Is a Sling Angle, and How Can Knowing Them Make Our Lifts Better? Are you having problems maximizing the lifespan of your slings? One of the root causes could be improper use leading to added stress. Nov 4, 2023 · Web Sling Capacity Calculation: Ensuring Safe Lifting Operations Web Sling Capacity Calculation : Web sling capacity calculation is a critical aspect of safe lifting operations. NOTE: If the calculated Head Room is greater than the available Head Room, try typing in a slightly smaller angle for Known Angle A. Ideal for rigging, crane work, and planning asymmetrical lifts. 25. The horizontal angle of bridles with three or more legs is measured the same way as horizontal sling angles of two-legged hitches. 87. Calculates tensions, angles, co-ordinates & leg lengths for tilting or skewed applications (technical-help) Type of hitch/method of rigging Effect of angle on capacity Chemical environment compatibility Protection from load edges Temperature of load and lift environment Condition of sling – passes all inspection criteria Calculate safe working loads for 2-leg slings instantly. Aug 12, 2025 · Calculate sling angles and tension forces quickly with our free Sling Angle Calculator. Lift-All recommends a Spread of 1/2 to 2/3 of the overall load length. Sling Angle Factor Calculator Determine accurate sling angle factors, enhance lifting safety, and ensure compliance with rigging and material handling standards. At 30°, each leg handles double its proportional share of the total weight, making this the critical threshold for safe operations. This distance is the “D” in the example below. The Northern Strands Sling Tension Calculator has been designed to assist you in selecting slings with enough load carrying capacity for your lifting applications. Ex. Mar 24, 2021 · One method uses a sling angle factor chart, the other method the ratio of the length of the sling divided by the height. If the load weight is 1000 lbs. For a ‘day-to-day’ practical calculation we found the following method theeasiest way to determine the sling size required. The sling leg load of two vertical slings is one-half of the total load for each sling. of legs = 2 Sling capacity (WLL) at a 60-degree angle? Now, put these value in the above formula Sling WLL at a 60-degree angle = 2000kg x 2 x 60 degree = 2000kg x 2 x 0. When using the Angle Factor Load Table, use the next larger load factor when the angle falls between the values on the table. For a ‘day-to-day’ practical calculation we found the following method the easiest way to determine the sling size required. Accurate angle measurements can help avoid overload risks and ensure secure rigging for heavy loads. The Aug 25, 2025 · A sling angle calculator is an engineering and safety tool used to calculate the sling angle factor (SAF) when lifting loads with slings or chains. 1) The sling angle affects the capacity of rigging, with shallower angles increasing tension. Follow our instructions and learn from our examples to calculate sling angles. When a load is allowed to hang free, the natural choke angle is about 135°. . 154. Length factor (L/D) for the desired angle of loading. The sling angle sheet helps you determine the sling angle. EDGE RADIUS REDUCTION ALLOY CHAIN SLINGS rigged over an edge. Perfect for riggers and engineers to ensure safe lifting and load distribution. This lesson provides an overview of the methods used to determine the weight of a load and two methods for determining rigging and load calculations. , 2-leg or 4-leg configurations), and the load weight. For instance, try 45 or 30 degrees. The examples below demonstrate how to calculate the Sling Load (SL) each Sling must carry based on their corresponding Sling angle and the Sling angle factor from the table before. Multiply the load factor times the minimum weight to be supported by the leg, i. Our helpful spreadsheets will calculate the basic sling leg lengths and suggest some top-selling standard sling types and sizes to meet your capacity. The load factor for 60° from the load factor chart is 1. Introduction A Brief Overview of 2 Leg Sling Calculations II. It determines how the angle formed between the sling legs and the horizontal plane impacts the sling’s working load limit. Sling angles below 30° are strongly discouraged. Oct 13, 2025 · Choker hitch configurations with angles less than 120° require multiplication by specific choke angle factors: 120°-180° = 1. EFFECTS OF SLING ANGLES SLING LIFTING CAPACITIES ARE AFFECTED BY ANGLE OF LIFT (ROUND SLING TO LOAD ANGLE) MEASURED FROM THE HORIZONTAL, WHEN USED WITH MULTI-LEGGED ROUND SLINGS OR CHOKER/BASKET HITCHES. Assume that the leg angle will be 60°. To calculate this loss, multiply the chain sling capacity by the reduction factor foun d CHAIN SIZE R Dec 16, 2024 · Introduction Lifting slings are indispensable tools in industries such as construction, logistics, and manufacturing. The minimum safety factor on a sling or grommet breaking load after resolution of the load based on center of gravity position and sling angle and consideration of the factors should be no less than 2.

Sling angle factor calculator. Shallower angles significantly .