Steel choker rigging chart. RATED CAPACITIES SHOWN APPLY ONLY TO 6X19 AND 6X37 CLASSIFICATION WIRE ROPE. Capacities as per ASME B30. This is the method used to determine the working load limit (WLL) of a sling: minimum breaking strength of the wire rope (MBL) multiplied by the efficiency of the splice or end fittings divided by the design factor 5. CHOKER hitches reduce lifting capability of a sling since this method of rigging affects ability of the wire rope components to adjust during the lift. BASKET HITCH CAPACITY BASED ON M NIMUM D/d RATIO OF FOR CHOKER HITCHES. When using a choker configuration, one eye of the sling is wrapped around the load, then passed through the sling itself and attached to the crane or hoist hook. This highly useful rigging technique should only be used under the following conditions: Select rigging and sling capacity for 75% of the load. Available in many configurations with Wire Rope Lifting Slings Shop our selection of wire rope slings. If appropriate overhead 78 rare steel choker load chart, type 30 6 x 26 riggers hand splice one leg eye eye wire, which sling hitch is best for your lift vertical vs basket, sling wire rope sling, See Crosby's vast product selection of chain and accessories - including hooks, bails, links, tags, binders and more - perfect for the rigging and lifting industries. Understand the requirements to know the load weight and the load center of gravity. Types of Hitches Every lift uses 1 of 3 Basic Hitches shown above – Vertical, Choker and Basket. pdf The chart gives capacities from 3/8" choker up to 1" choker in single verical, choker, 2 leg bridle at 30, 45 and 60 degrees. Connection Hardware Effective Code Color Code MIN. Buy Now! Know how to read rigging charts for various hitches and hardware. Wire Rope Types & Specifications We stock all types of wire rope for every application from a truck winch or a pipe choker to a tugboat towing wire or Crane Rigging. Slings should not be used at angles of less than 30°. ) Calculator Usage: This calculator is provided for general purpose use only. Working Load Limit of 2. They are approximately 10% of the weight of a steel sling and are repairable. Wire Rope Chokers, Slings & Wire Rope Bridles! Made in USA! Custom sizes and lengths available. Feb 16, 2021 · The answer may surprise you. Lightweight, flexible, and relatively soft, it is suitable in applications were minimal damage to the load's surface finish is important. THE ANGLE OF CHOKE SHALL BE 120 DEGREES OR GREATER. If you need a 2-leg bridle, 3-leg bridle or 4-leg The wire rope sling products you need. The Twin-Path sling design, which has two individual paths of fiber working as one sling, gives the rigger confidence. BRIDLE/MULTI-LEG Special purpose slings with multiple combinations. Portions of this section of the catalog were taken from the Wire Rope Sling User’s Manual with the permission of the Wire Rope Technical Board and the American Iron and Steel Institute. *Percent of sling’s rated capacity in a choker hitch. 1-1. Contributed by Bob Kozickie, Technical Sales Support Manager Alloy Chain Sling Capacity Charts are published by Standards Associations, chain manufacturers, and virtually every rigging shop in existence. Alloy steel chain slings are made from various grades of alloy, but the most common grades in use are grades 80 and 100. As an example, a horizontal sling angle of 30º will increase the tension factor by 2 times therefore doubling the weight felt by the sling and all related rigging. 9 11 14 NOTE: ONLY USE THE CAPACITIES SHOWN IN THIS CHART WHEN SLING IS IDENTIFIED AS EEIP (EXTRA EXTRA IMPROVED PLOW STEEL) NOMINAL SLING DIAMETER. The sling manufacturer should be consulted when the slings are to be used in temperatures of -40 oF (-40 oC) or below. ,909-469-2251,manufacturer and safety training provider to the industrial lifting sling and rigging industries for over 30 years. Connection Hardware Thickness Vertical or Choker in. A choker is used when the load will not be seriously damaged by the sling body — or the sling damaged by the load — and when the lift requires the sling to snug up against the Jul 24, 1996 · Wire Rope Failure to read, understand, and follow manufactures instructions may cause death or serious injury. Alloy Steel Chain Slings: Alloy steel chains are often used because of their strength, durability, abrasion resistance and ability to conform to the shape of the loads on which they are used. Choker Cable Rigging Capacity Chart Our sliding choker wire rope slings are available in various diameters and lengths, allowing you to choose the perfect sling for your specific lifting needs. Diameter of curvature of load surface is at least double the diameter of the rope. Female handle (choker) is a handle with a handle eye and a slot of such dimension as to permit passage of a male handle thereby allowing the use of a metal mesh sling in a choker hitch. The purpose of this document is to discuss the requirements for planning and performing an incidental lift using an overhead crane and commonly available rigging components 5/16" Eye Type Eye Type Sling Hook (9/32") 5/16" Eye Type Eye Type 1 -LEG CHAIN SLINGS Capacity in lbs (Grade 100) Master Link When using chain slings in choker applications, the Working Load Limit must be reduced by 20%. Unirope Slingmax offers a wide range of rigging products including sliding chokers, slings and more. A key consideration is the wire rope sling capacity, which can significantly differ based on the hitch arrangement used. A safer rigging practice in this scenario would be to use an Inner Wire Rope Core Steel Choker (IWRC). Load stability and balance can be achieved by spreading sling legs in a basket or choker hitch. Edwards Wire Rope Slings provide the strength and sturdiness required for lifting those tough loads. Nylon webbing is Lift-It Mfg. Rated capacities based on design factor of 5. A choker is used when the load will not be seriously damaged by the sling body — or the sling damaged by the load, and when the lift requires the sling to snug up against the load. W I R E R The listed capacities of wire rope slings & assemblies in this catalog are based on the industry standard of a 5 to 1 design factor. By comparison, the BoaGrip rigging sling’s Double-D link ensures that the gripping surface is held flat all around the pole. Information on types of hitches and effect of type of hitch, sling angle and D/d ratio on safe working load is given in this article. They are reproduced and can be printed as large or small wall posters or as pocket guides that riggers carry with them for quick reference. Dec 12, 2023 · Using the incorrect rigging can compromise safety and lead to serious accidents. Choker hitches reduce lifting capacity of a sling, since this method of rigging affects the ability of the wire rope components to adjust during the lift, places angular loading on the body of the sling, and creates a small diameter bend in the sling at the choke point. Consult the manufacturer when planning to use an angle of choke less than 120 degrees. The angle of the sling can reduce the capacity of all the rigging due to sling tension. Connection Hardware Effective Contact Width Vertical Contact Width Basket in. These chains are Do not exceed rated capacities. If you need to reference the Crosby User's Guide For Lifting pocket si Easier rigging provided when hooking into fixed lifting points. Great for a new hook on man, apprentice, or anyone needing quick access to choker strengths. This arrangement provides the most effective choker hitch. Call us at (706) 750-9099 to order! Wire Rope Slings Wire Rope consists of multiple steel wires that form individual strands wrapped around a steel core. pdfdetails about Sling_Rating_Charts_Sling_Choker. This i cludes vertical, choke, and basket hitches. Wire Rope Slings are the most common and lowest cost per ton of lift of all slings. Choker Hitch Capacities When the 120o, pull on a choker hitch results in an angle of less than the work load limit must be adjusted. Crosby recommends minimum angle of choke of 120 degrees (see Figure 1). These slings are carefully crafted to complement our existing ground stabilization tools, expanding our offerings to meet a wider array of lifting and rigging needs. EYE & EYE A versatile sling for general use with choker, basket, or vertical hitches. Connection Hardware Thickness Basket in. Also included in the charts are screw pin shackles We custom manufacture all types of wire rope slings. You can use the chart below to calculate tension factors. Specifically, it addresses how mechanical construction and service workers can safely rig the types of loads that are most common in our industry. Wire rope slings with a sliding choker hook are most commonly used in the pipe industry. Nov 9, 2010 · Hitches & Capacities Choosing the right rigging configuration is crucial for effective load management. 9, and Wire Rope Technical Board publications. The object (a shackle, a crane hook, a steel bar, etc. Safe working load limit of a sling depends on type of hitch, sling angle and D/d ratio. This guide focuses on the rigging of the load. A conventional nylon rigging sling has a simple sewn “eye” at either end; one eye slips through the other to form a choker, but the rigging sling has to be slightly twisted. Endless Wire Rope Slings Made from one 6X19 or 6X37 EIPS IWRC wire rope, mechanically joined with steel sleeves. At first glance these charts appear to be simple Discover the latest addition to Bigfoot’s comprehensive product line – our extensive range of Nylon Lifting Slings. Read the flipbook version of Structural Steel Erection Reference Manual. May 9, 2020 · 121285768 published Structural Steel Erection Reference Manual on 2020-05-09. Our 3/4 inch Wire Rope Sling Chokers are pre-made, tagged and certified. This technique is widely used in industries such as construction, shipping, and heavy manufacturing, where strong and durable rigging solutions are essential for handling heavy and irregularly shaped loads. Data presented in this chart applies to trusses built after 2011. Horizontal sling angles of less than 30 degrees are not recommended. Manufacturer and/or Distributor of Wire and Fiber Rope, Wire and Fiber Rope Assemblies, Chain, Slings, Hoists; Lifting and Material Handling Equiptment; Cargo Control Products; Fall Protection; Services: Inspections; Repairs Wire rope rigging slings with fiber cores (FC) are rated at reduced capacities when compared with an equivalent size, wire choker with an independent wire rope core (IWRC). The Slings Unlimited Learning Center has sling capacity charts for nylon & polyester round slings, wire rope slings, chain slings, shackles and more! The chart gives capacities from 3/8" choker up to 1" choker in single verical, choker, 2 leg bridle at 30, 45 and 60 degrees. This 1-1/2" x 20' steel cable sling is stronger and more durable than nylon or polyester and more economical than chain slings. Sling capacity decreases as the angle from horizontal decreases. 8. A choker hitch has 80% of the capacity of a single leg sling only if the angle of choke is 120 degrees or greater. This reduction factor is applicable for the standard 120 degree arrangement at the intersection of the choker legs. 7. NEVER PLACE A SLING EYE OVER A FITTING WITH A DIAMETER OR WIDTH GREATER THAN ONE HALF THE LENGTH OF THE EYE. The benefit of a flemish eye is that the integrity of the eye is not solely dependent on the sleeve. This choker is features a standard eye and eye on each end. Rated Capacities based on design factor 5:1 for Construction Ontario Chains slings. Sep 7, 2017 · Frequently our work involves lifting materials with a choker hitch. Double polyester tubing for better abrasion resistance, and easier inspection WEB SLING AND ROUNDSLING CAPACITIES WEB SLING IDENTIFICATION INCLUDES: SLING TYPE: TC - TRIANGLE CHOKER TT - TRIANGLE TRIANGLE EE - EYE AND EYE EN - ENDLESS NUMBER OF PLIES: 1 OR 2 WEBBING GRADE: 9 OR 6 SLING WIDTH (INCHES) Capacity charts for most slings manufactured by Liftex. This includes forces added as a result of sling angle. Choker Hitch: A choker hitch is where the eye on one end of the sling is passed through the eye on the other end of the sling and the sling is choked around the load being picked up. Choose from our selection of cable chokers, including wire rope slings, flat-eye web slings, and more. A choker sling configuration is often used to tighten a sling down securely to provide better load control. In this excerpt from the Wire Rope Sling Guide, learn how calculate a load, and how to adjust the rate capacity of a choker hitch. Choker Hitch Capacity Calculator Results Reduction Factor Adjusted Rated Choker Capacity per Sling (lbs. This construction provides strength, flexibility, and the ability to handle bending stresses. Additionally, view a chart identifying load factor In rigging various types of hitches are used to hold loads. Sep 21, 2018 · Learn how to safely use a sling choker hitch, when to apply it, and what precautions to take to avoid capacity loss and rigging failure. Everything from simple pipe chokers to multi-leg lifting apparatus. If Crosby A-1338 Cradle Grab hooks are used at the Figure 1 minimum angle of choke of 120 degrees, the full sling rated WLL can be utilized The Flex-X® process provides a smooth, extremely compact wire rope with greater surface area and more steel per given diameter, which increases strength, fatigue resistance and wear resistance. For sling angles other than those shown, use the rated load for the next lower angle or a qualified person shall calculate the rated load. The D/d ratio is the diameter of the object around which the rope is bent (D), divided by the diameter (d) of the rope. Steel Choker Rigging Chart Konaka Choker Rigging Chart Choker hitch capacities when the pull on a choker hitch results in an angle of less than 120o, the work load limit must be adjusted. A CHOKE ANGLE LESS THAN 120 DEGREES CAN RESULT IN A CAPACITY AS LOW AS 40% OF THE SINGLE LEG. The document provides specifications for various rigging equipment including their load ratings. Slings are available up to 12” width and 4-plies. It is the responsibility of the user to assure that the data they enter is accurate and that the slings they use are appropriate for their application. Learn about the proper use of choker hitches and wire rope slings for universal rigging applications in this informative video. Lift-All Hoists Hoist Rings Lifting Devices Plate Clamps Load Huggers Tow Products General Information Web Slings Round Slings Sling Protection Wire Rope Chain Slings Rigging Hardware Mesh Slings Lift-All Hoists Hoist Rings Lifting Devices Plate Clamps Load Huggers Tow Products General Information Web Slings Round Slings Sling Protection Wire Rope Chain Slings Rigging Hardware Mesh Slings Lift-It Mfg. For example, choosing a flat webbed nylon sling to hoist a steel beam with sharp edges could result in the rigging getting cut and dropping the load. Whatever your lifting requirements are, Dunlap Industrial Hardware can provide the right sling to get the job done. Twin-Path slings are used worldwide in place of steel rigging for heavy lifts. Free Shipping on orders $199+ Home Rigging and Lifting Pipe and Log Choker Slings Pipe and Log Choker Slings Sort By: 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. The safety policy “lf It‘s Not Safe, Don‘t Do It” is important not only for your safety, but the safety of your coworkers. It lists nominal working load limits for different sizes of shackles, eye bolts, wire rope slings, and alloy steel chain slings. Calculating the load of basket hitches and bridles When calculating the load of basket hitches and bridles, remember that as the horizontal angle of a sling decreases, the resultant load on each leg increases. Jan 27, 2014 · Choker Hitches Choker hitches reduce lifting capability of a sling since this method of rigging affects ability of the wire rope components to adjust during the lift. Achieves higher capacities at a lower cost. These slings have less than 1% elongation at rated capacity. lifting. Untitled 2Wire Rope Slings Use proper wear pads to prevent the sling from being cut by edges and corners. Inc. Oct 4, 2022 · Type 1 – Triangle Choker Sling Nylon triangle choker lifting slings have a steel triangle on each eye – one of which includes a slot. Know and understand the requirements to keep clear of the load. Crosby's full catalog and product listing of the Wire Rope Sling Capacities. BRAIDED ROUND SLINGS Braided round slings provide greater security in handling high-capacity loads. Never exceed working load limits. Head Ofice Toll Free Numbers THE ABOVE CHART IS IN ACCORDANCE WITH ASME B30. download Sling_Rating_Charts_Sling_Choker. ) you place into the sling eye must not be larger than 1/2 of the sling eye length. Failure to properly account for sling tension is the most common rigging mistake I’ve seen construction professionals make over the years. Download page 101-150 on PubHTML5. Learn how to use choker and basket hitches correctly. Should the sleeve become damaged during use, there is reserve strength Always consider the sling angles when making a lift. Rated capacities basket hitch based on d/d ratio of 25. Our knowledgeable experts can help you determine what will work best whatever you’re doing. Represents a load in choker hitch and illustrates the rotary force on the load and/or the slippage of the rope in contact with the load. 9 tons. MIN. Safety Factor 5:1 MIN. Sling stress applies to all types of slings. An understanding of the capabilities and limitations of the equipment will support this. Choose from our selection of chokers, including wire rope slings, flat-eye web slings, and more. Tway 5/8″ X 16′ Sliding Choker Sling. The adjustable hook allows for a flexible hitch around the load. Jun 11, 2019 · Panels 5 & 5A of the User's Guide For Lifting cover Wire Rope Capacities (EIP & EEIP). com rigging Charts available for iphone cessary rigging capacity chart information. Although it makes a nice “tight” choke around pipes and bundles of steel, remember that this practice reduces your sling capacity by more than 50%! Reduction of CHOKER Sling Capacity (WLL) 60 minutes These 10 questions are for you to use to help get ready for the load chart and rigging part of the CraneSafe Level A Certification assessment for Mobile Hydraulic Crane. When wire rope is bent around the load diameter, the rope strength is decreased. Rated capacities based on pin diameter no larger that natural eye width or less than the nominal sling diameter. Qualifying orders ship free. Know dangers of working around Power Lines. CONNECTION TO FITTINGS CHOKER CAPACITY d USE A THIMBLE TO PROTECT SLING AND INCREASE D/d NEVER PLACE EYE OVER A FITTING WITH SMALLER DIAMETER OR WIDTH THAN THE ROPE’S DIAMETER. If you need a wire rope choker with thimble eyes, hooks, or something not listed please call for pricing. When a sling is used in a BASKET- or CHOKER HITCH with D/d ratios smaller than listed in the capacity tables, the rated capacities (or WLLs) must be decreased. Do not use slings made with wire rope clips in a choker hitch, Use only wire rope clips made from drop-forged steel of the single-saddle (U-bolt) or double-saddle type clip, Do not use malleable cast iron clips to fabricate slings, Refer to the clip manufacturer for spacing, number of clips, and torque values, RIGGER REFERENCE BOOKLET This Reference Booklet has been produced and adapted from various manufacturers’ data and is for use in NCCCO written examinations. 9 SPECIFICATIONS Toll Free Phone: 1-888-779-8898 - Toll Free Fax: 1-800-354-8705 WARNING: Read warnings and use limitations before rigging. A Full Service Rigging House with Online Buying. Lifting and Rigging Supplies | Wire Rope Supplier | Kennedy Choker hitch double wrapped (Fig-5) : The general limitations for this sling method is similar with simple choker hitch, except that with the double wrapped choker hitch the load is gripped more fully, and hence is secured more effectively. Bigfoot takes pride in providing top-notch solutions for your lifting requirements, emphasizing both Oct 8, 2014 · The total amount of force exerted on a sling. Detail about Extreme temperatures may reduce the performance of alloy steel chain slings. Description: Triangle choker nylon sling is a heavy-duty Class 7 web sling,maylon material with Type 1 steel triangle & choker end fittings commonly referred to as a 'TC' sling. Every chart in the app includes the th ee basic hitches and their load capacities. Shown below. A CHOKER HITCH HAS 75% OF THE CAPACITY OF A SINGLE LEG SLING ONLY IF THE ANGLE OF CHOKE IS 120 DEGREES OR GREATER. ENDLESS A versatile sling for general use with unlimited rigging methods. Determine Task and Job-Site Requirements In order to ensure the safety of workers and the equipment involved, any operation involving the use of a crane to lift items must be planned thoroughly before being carried out. Offering multiple lengths to meet your needs. While 6 x 19 ropes have more abrasion resistance, the 6 x 36 ropes have more fatigue resi HOISTING AND RIGGING PROGRAM Safety should be the first priority when performing lifting operations. Refer to the chain chart on this page and the Efect of Angle chart in the General Information section of this catalog. Determine the angle of choke and multiply the choker hitch work load limit by the loss factor to get the reduced work load. In some trades it became practice to use 2 slings in a choker configuration at less than 30 degrees with the choke points facing each other. . Warning Using choker hitches at angles of 135° or greater is not recommended due to the instability produced with this arrangement. Aug 6, 2024 · Steel choker rigging is a method of lifting and securing loads using steel wire rope slings that are configured in a choker hitch. A choke angle less than 120 degrees will result in a capacity as low as 40% of the single leg. Introduction The three main parts to any load lifting operation are the lifting equipment (crane/derrick/ hoist), the operator/operation of the equipment, and the rigging of the load. In addition to consulting with a wire rope sling capacity chart, considerable care should also be taken to ensure that the choke angle is determined and applied as accurately as possible. It also provides instructions on how to calculate load distribution when using multiple-leg slings and lists weights of various common materials to aid in load calculations. Rated load reductions for Grade 80 and Grade 100 alloy chain slings used at or after exposure to temperatures above 400 oF (204 oC) or higher are given in Table 9-1. Same and Next Day Delivery. Sling tension occurs when the slings are rigged at an angle; this directly affects capacity. Diameter of the chain contact area for choker hitches should be 10 times the chain diameter • NEVER exceed Working Load Limits Free all chains from knots and twists in sling legs before lifting • ALWAYS use protection for slings around sharp corners or edges. Our wire rope slings are manufactured in-house using the flemish eye splice technique to form the eyes and are then mechanically swaged using a steel sleeve. In the upcoming diagrams, you will find 10 unique rigging sling types, each demonstrating various sling hitches. Polyester Slings with Aluminum Triangle and Aluminum Choker Capacity Chart Polyester Slings with Steel Triangle on Both Ends Capacity Chart Polyester Slings with Steel Triangle and Steel Choker Capacity Chart Polyester Slings with Reversed Eyes Capacity Chart Polyester Round Body Slings Capacity Chart Tri-Flex® Wire Rope Slings offer strength, flexibility, and cost savings—ideal for heavy lifting, steel erection, and machinery moving applications. Lift-All wire rope slings and rated capacities comply with all OSHA, ASME B30. There are many build variations of Wire Rope, each with strengths and weaknesses, allowing them to be versatile and used in various applications. For choker hitch, the angle of choke shall be 120 degrees or greater. Browse Sliding Choker Wire Rope Slings in Wire Rope Lifting Slings at Rigging Warehouse. 9. Built for safety, this choker meets or exceeds all DOT and OSHA related regulations. he same minimum breaking force, size for size. The chart below shows the capacity reduction of a sling used in a choker hitch. The metal end fittings extend the working lifespan of the sling by reducing wear and tear on the eyes. We offer a full line of proven wire rope slings, including single-part body, multi-part body, SuperFlex® braided slings, grommets and socket assemblies. The smaller triangle can pass through this slot to create the necessary setup for a choker hitch. Used in the construction industry and other industries where heavy loads rugged conditions exist. Aug 15, 2024 · Learn more about the importance of calculating sling angles and how to find the right slings for your lifting tasks. In addition, these slings are able to lift hot materials. fxcw ctuhzp thd xyispux hluu qko iry swhpuae mjoqt fgekntzg