wire rope lifting capacity chart made in china

Wire rope is often used in slings because of its strength, durability, abrasion resistance and ability to conform to the shape of the loads on which it is used. In addition, wire rope slings are able to lift hot materials.

Wire rope used in slings can be made of ropes with either Independent Wire Rope Core (IWRC) or a fiber-core. It should be noted that a sling manufactured with a fiber-core is usually more flexible but is less resistant to environmental damage. Conversely, a core that is made of a wire rope strand tends to have greater strength and is more resistant to heat damage.

Wire rope may be manufactured using different rope lays. The lay of a wire rope describes the direction the wires and strands are twisted during the construction of the rope. Most wire rope is right lay, regular lay. This type of rope has the widest range of applications. Wire rope slings may be made of other wire rope lays at the recommendation of the sling manufacturer or a qualified person.

Wire rope slings are made from various grades of wire rope, but the most common grades in use are Extra Improved Plow Steel (EIPS) and Extra Extra Improved Plow Steel (EEIPS). These wire ropes are manufactured and tested in accordance with ASTM guidelines. If other grades of wire rope are used, use them in accordance with the manufacturer"s recommendations and guidance.

When selecting a wire rope sling to give the best service, consider four characteristics: strength, ability to bend without distortion, ability to withstand abrasive wear, and ability to withstand abuse.

Rated loads (capacities) for single-leg vertical, choker, basket hitches, and two-, three-, and four-leg bridle slings for specific grades of wire rope slings are as shown in Tables 7 through 15.

Ensure that slings made of rope with 6×19 and 6x37 classifications and cable slings have a minimum clear length of rope 10 times the component rope diameter between splices, sleeves, or end fittings unless approved by a qualified person,

Ensure that braided slings have a minimum clear length of rope 40 times the component rope diameter between the loops or end fittings unless approved by a qualified person,

Do not use wire rope clips to fabricate wire rope slings, except where the application precludes the use of prefabricated slings and where the sling is designed for the specific application by a qualified person,

Ensure that wire rope slings have suitable characteristics for the type of load, hitch, and environment in which they will be used and that they are not used with loads in excess of the rated load capacities described in the appropriate tables. When D/d ratios (Fig. 4) are smaller than those listed in the tables, consult the sling manufacturer. Follow other safe operating practices, including:

When D/d ratios (see Fig. 6) smaller than those cited in the tables are necessary, ensure that the rated load of the sling is decreased. Consult the sling manufacturer for specific data or refer to the WRTB (Wire Rope Technical Board) Wire Rope Sling Users Manual, and

Before initial use, ensure that all new swaged-socket, poured-socket, turnback-eye, mechanical joint grommets, and endless wire rope slings are proof tested by the sling manufacturer or a qualified person.

Permanently remove from service fiber-core wire rope slings of any grade if they are exposed to temperatures in excess of 180 degrees F (82 degrees C).

Follow the recommendations of the sling manufacturer when you use metallic-core wire rope slings of any grade at temperatures above 400 degrees F (204 degrees C) or below minus 40 degrees F (minus 40 degrees C).

Flexibility and handling ease for rigging large lifts are the main benefits of the 9-PART Slings. The 9-Part sling is made by laying wire rope continuously through both eyes and the sling body. This results in a body formed with nine parts.

The improved efficiency of the 9-Part Super-Flex slings is backed with a proven design that provides internal adjustment to distribute the load among all nine parts of the sling body. The 9-Part sling is made by laying wire rope components continuously through both eyes and the sling body. This results in a body with improved flexibility and handling ease for rigging large lifts. Only two splices occur in the entire sling-where the component rope ends are spliced at the eyes. The sling construction makes it possible to easily inspect all parts of the sling before and after each lift, which is important to remember if the sling is to be used many times.

When a sling body must conform to a tight choke hitch or must bend in a tight radius, such as around a pin or post, a 9-Part construction may be the most suitable since it can develop greater lifting capacity from a smaller component rope.

(a) Wire rope slings must be made from new or unused regular lay wire rope. The wire rope must be manufactured and tested in accordance with ASTM A 1023-02 and ASTM A 586.

(f) Wire rope clips, if used, must be installed and maintained in accordance with the recommendations of the clip manufacturer or a qualified person, or in accordance with the provisions of ASME B30.26-2010.

(g) You must not use slings made with wire rope clips as a choker hitch.Note:If using wire rope clips under these conditions, follow the guidance given in Table 5.

Number, Torque Values, and Turn Back Requirements for U-Bolt Wire Rope ClipsNumber, Torque Values, and Turn Back Requirements for Double Saddle (Fist Grip) Wire Rope Clips

•Slings made of rope with 6x19 and 6x36 classification.A minimum clear length of rope 10 times the rope diameter between splices, sleeves, or end fittings (see Figure 4, Minimum Sling Length) unless approved by a qualified person.

•Braided slings.A minimum clear length of rope 40 times the component rope diameter between the loops or end fittings (see Figure 5, Minimum Braided Sling Length) unless approved by a qualified person.

(b) You must rate slings with the load capacity of the lowest rated component of the sling. For example, if you use fittings that are rated lower than the sling material itself, identify the sling with the lower rated capacity.

(3) Identification information. All wire rope slings must have legible identification information attached to the sling which includes the information below, see sample tag in Figure 6. For slings in use that are manufactured before the effective date of this rule, the information below must be added before use or at the time the periodic inspection is completed.

Sample Wire Rope Sling ID TagNote:Sample tag for a 1/2" single-leg sling 6x19 or 6x36 classification, extra improved plow steel (EIPS) grade fiber core (FC) wire rope with a mechanical splice (ton = 2,000 lb).

(c) For single- or multiple-leg slings and endless slings, each leg must be proof loaded according to the requirements listed in Table 8 based on fabrication method. The proof load test must not exceed 50% of the component ropes" or structural strands" minimum breaking strength;

Note: For mechanical splice, swaged socket and poured socket slings follow the rope manufacturer"s recommendations for proof load testing provided that it is within the above-specified proof load range, including (c) of this subsection.

(a) You must use wire rope slings within the rated loads shown in Tables 7 through 15 in ASME B30.9-2010. For angles that are not shown in these tables, either use the rated load for the next lower angle or have a qualified person calculate the rated load.

(e) You must decrease the rated load of the sling when D/d ratios (Figure 8) smaller than 25 to one. Consult the sling manufacturer for specific data or refer to the Wire Rope Sling User"s Manual (wire rope technical board).

Our wire rope slings comply with the Supply of Machinery (Safety) Regulations. Wire rope fittings and steel rope are matched up against each other to suit the required load. They go through thorough quality assurances and are clearly labelled to maximise safety. Slinging arrangements are made up to order, in accordance with your specifications.

Various end fittings and end fitting combinations are available for online quotation, where you can choose the complete configuration of the sling that you require. If you require any additional features such as fibre core, or the construction of the wire e.g. 6x36 IWRC, please add this into the additional information box at the end of constructing your wire ropes.

The working load limits of slings made from general engineering ropes to BS EN 12385-4 should conform to BS EN 13414-1: 2003. Note that the working load limits shown are based on the assumption that soft-eyes of single-part slings are used over bearing points of not less than twice the normal diameter of the rope. All sling ropes must be ordinary lay.

Keep the wire rope sling away from welding and flame cutting operations. The Law requires that all lifting tackle must be examined by a competent person at regular intervals. Users should not store away slings and regard them as their own private slinging assemblies, as this could lead to them being overlooked at inspection time.

Large Loads Require Large Slings Whatever the load you are lifting. YuanBo Wire Rope Factory can supply a steel wire rope sling to do the task. Sling up to 12" (305mm) diameter can be supplied with minimum braking loads up to tons. There arethree distinct types of Wire Rope Sling.

Slings manufactured from cable laid ropes, 4" diameter to 12" diameter. hand spliced or by combination of hand splicing and socketing with eye at each end.

Slings manufactured from 6 strand equal laid ropes. up to 3.5 " diameter with soft eyes spliced each end. terminated by either hand splicing or mechanical means.

The most common size: wire rope slings having soft eyes at both end used for heavy lifting operations with safety factor of 7, length 6m, 12m, 16m, 20m, and the swl from 5 ton to 40 ton.

Shoulder eye bolt is also known as collared eye bolt, features a supporting shoulder or collar to provide more stability to the base of the eye, so that can be loaded with slings at angles or with any kind of angular loading, but the capacity will be lost at different angles loading, and make sure that the shoulder eye bolt is installed properly. If the shoulder is not completely flush, it can only be used for vertical lifts, equal to regular eye bolt. We can offer long shank collared eye bolt, and machinery eye bolt, called shoulder pattern machinery eye bolt, features a shoulder with shank, fully threaded shank but without a secured nut. It is designed to be screwed directly into threaded or tapped holes, used as a connection point in rigging applications.

For pulling and tensioning applications. Tensions wire rope to span between posts and finish with clips. TIRVIT® attaches at any point onto the wire rope. The lever action is similar to that of a TIRFOR® hoist plus you can take it off the rope without having the entire rope length fed through it. This is a neat little gizmo – most riggers don’t even know it exists. Stops the hassle of getting a rope tight between posts.