Complete Guide to Lifting Slings: Types, Capacity & Safety Tips

Lifting slings are one of the most versatile tools in any rigging operation. From construction sites to manufacturing facilities, slings provide the connection between the hoist and the load. Choosing the right sling ¡ª and using it correctly ¡ª is essential for both safety and efficiency.

Types of Lifting Slings

1. Polyester Round Slings

Round slings are made from a continuous loop of polyester yarn enclosed in a protective outer cover. They are extremely flexible, conform to the shape of the load, and will not scratch or damage finished surfaces.

• Capacity range: 0.5T to 20T+
• Available as endless (continuous loop) or eye-and-eye
• Color-coded per EN 1492-2 standards
• Best for: finished goods, fragile loads, irregular shapes

2. Webbing Slings

Made from flat woven polyester webbing, these slings offer excellent load stability and are available in endless, eye-and-eye, and reverse-eye configurations.

• Capacity range: 0.5T to 10T
• Wear-resistant and good for repetitive lifting
• Color-coded per EN 1492-1 standards
• Best for: general rigging, where stability is important

3. Chain Slings

Chain slings offer the highest strength and durability. Available in Grade 80 and Grade 100, they withstand high temperatures and abrasive environments.

Related: View our lifting sling range ¡ú | View chain slings ¡ú

Understanding Capacity and Safety Factors

Every lifting sling is rated with a Working Load Limit (WLL). The safety factor (typically 5:1 or 6:1 for synthetic slings) means the sling can hold 5-6 times its rated capacity before failure. Never exceed the rated WLL.

When using slings in multi-leg configurations or at angles, the capacity is reduced. A 2-leg sling at 60 degrees has a lower capacity than when used vertically. Always consult the capacity chart for your specific configuration.

Inspection Guidelines

Inspect slings before every use. Look for:

• Cut, frayed, or broken stitching
• Chemical or heat damage (discoloration, melting)
• UV degradation (fading, chalking)
• Knots or kinks in the sling body
• Damaged or illegible capacity tags
• Worn or damaged fittings (hooks, rings, eyes)

Any sling showing signs of damage should be immediately removed from service and replaced.

Safety Best Practices

• Always use corner protectors when lifting sharp-edged loads
• Ensure the sling is centered over the load's center of gravity
• Never twist, knot, or tie slings
• Protect slings from sharp edges, weld splatter, and chemicals
• Store slings in a clean, dry, dark environment when not in use
• Follow manufacturer instructions for multi-leg configurations