The Single Leg Chain Sling (1 Leg) is a highly durable, heavy-duty lifting assembly consisting of a single alloy steel chain leg connected to a top master link, designed specifically for loads requiring a single vertical pick point.
The 1-Leg (or Single Leg) Chain Sling is the simplest rigging configuration, consisting of a single length of alloy steel chain with a master link at the top and a hook or fitting at the bottom. Unlike wire rope, alloy chain does not rotate or untwist under tension, making it significantly safer for vertical "straight-pull" applications.
A single leg sling can be used in three primary ways. The method you choose drastically changes the Working Load Limit (WLL) of the sling.
| Hitch Type | Description | WLL Factor |
|---|---|---|
| Vertical (Straight) | The hook connects directly to a single lifting point on the load. | 1.0 (100%) |
| Choker Hitch | The chain is wrapped around the load and hooked back onto itself (choked). | 0.8 (80%) |
| Basket Hitch | The chain goes under the load and the hook is brought back to the master link. | Up to 2.0 (200%) |
Chains remain stable during the lift, preventing the load from spinning uncontrollably—a major risk with single-leg wire rope slings.
Can be fitted with a shortening clutch or grab hook near the master link, allowing the operator to adjust the "reach" for low-headroom environments.
Ideal for lifting items with sharp edges or high temperatures (up to 400°C with proper de-rating) that would cut or melt synthetic slings.
Balanced loads with a single, central lifting point (e.g., an eyebolt on a motor) or "choking" bundles of steel or timber.
Unbalanced or wide loads. A single leg provides no stability against tilting or "rolling." If the load can tip, you must upgrade to a 2-leg or 4-leg configuration.
Supplied with a metal load ID plate. Safety Factor 4:1. Compliant with EN 818-4 standard.
The last two digits of the product code refer to the chain size.
| Chain Size (mm) |
WLL / Capacity (tons) |
Clevis Self Locking Hook |
Clevis Self Locking + Grab Hook |
Clevis Sling Hook |
Clevis Sling + Grab Hook |
|---|---|---|---|---|---|
| 6 | 1.12 | 503001106 | 503002106 | 503003106 | 503004106 |
| 7 | 1.5 | 503001107 | 503002107 | 503003107 | 503004107 |
| 8 | 2.0 | 503001108 | 503002108 | 503003108 | 503004108 |
| 10 | 3.15 | 503001110 | 503002110 | 503003110 | 503004110 |
| 13 | 5.3 | 503001113 | 503002113 | 503003113 | 503004113 |
| 16 | 8.0 | 503001116 | 503002116 | 503003116 | 503004116 |
| 18 | 10.0 | 503001118 | 503002118 | 503003118 | 503004118 |
| 20 | 12.5 | 503001120 | 503002120 | 503003120 | 503004120 |
| 22 | 15.0 | 503001122 | 503002122 | 503003122 | 503004122 |
| 26 | 21.2 | 503001126 | 503002126 | 503003126 | 503004126 |
| 32 | 31.5 | 503001132 | 503002132 | 503003132 | 503004132 |
A single leg chain sling is a lifting device used in material handling and lifting applications. Unlike multi-leg slings, a single leg chain sling consists of just one length of chain.
A single leg sling may be used to connect a lifting appliance to a load with a single lifting point such as the eyebolt on an electric motor. (See figure 1A5.1(a)) It may also be used in choke hitch either by back hooking or reeving one end of the sling through the other. (See figure 1A5.1(b))
Two identical single leg slings may be used in combination to form, in effect, a two leg sling. (See figure 1A5.2) Care is necessary to ensure that the hook of the lifting appliance is not overcrowded and it is recommended that the upper end of the sling legs to be connected by a shackle or link. (See figure 1A5.3) Where this is done the legs must be symmetrically disposed and the angle of a leg should not exceed 45° to the vertical.
The method of attaching the slings to the crane hook should ensure that the sling eyes or links are not damaged. Two single leg slings used as a two leg sling must be treated as a two leg sling for rating purposes. The combined SWL when the legs are at an angle between 0 and 45° to the vertical (0 to 90° included angle) is 1.4 times the SWL of the single leg.
High-strength alloy steel construction conforming to international standards. Ensures maximum durability and load-bearing capacity in demanding industrial environments.
When two single leg slings are used together, the combined Safe Working Load (SWL) is 1.4 times the SWL of a single leg when the angle is between 0-45° to the vertical.
EN 818-4 - Safety Requirements for Lifting Accessories
The Machinery Directive stipulates that where chain with welded links is used for lifting accessories it is to be of short line type and for the purposes of this standard this is chain having a ratio of nominal pitch to nominal size of 3:1.
This European Standard specifies the requirements related to safety, methods of rating and testing of single-, two-, three-, four-leg and endless chain slings assembled by:
using short link grade 8 medium tolerance lifting chain conforming to EN 818-2 together with the appropriate range of components of the same grade.
