How to Inspect and Retire Lifting Slings: The Ultimate Rejection Criteria Guide

Every year, lifting sling failures cause serious injuries and fatalities worldwide. The sad truth? Most of these accidents are preventable—with proper inspection and timely retirement of worn equipment. This comprehensive guide covers everything you need to know about inspecting synthetic slings, webbing slings, and round slings, plus the exact rejection criteria that could save a life.

Why Regular Sling Inspection Matters

Lifting slings are subjected to extreme stresses during operation. Even the highest-quality slings degrade over time due to:

• Abrasion — Repeated friction against loads andEdges
• Cut damage — Sharp edges or foreign objects
• Chemical exposure — Acids, alkalis, or solvents
• Ultraviolet (UV) degradation — Sun exposure weakens fibers
• Thermal damage — Excessive heat exposure
• Shock loading — Sudden impact forces

⚠️ Critical: According to OSHA and CE standards, lifting slings must be visually inspected before EACH use. A damaged sling in operation is a catastrophe waiting to happen.

Three Levels of Sling Inspection

1. Initial Inspection – before first use or after repair: verify specs, batch, label, no transit damage.
2. Frequent (Pre‑Use) Inspection – visual + tactile before every lift: obvious damage, tags, fittings.
3. Periodic Inspection – documented thorough check by a competent person:
   • General service: at least every 12 months
   • Severe, chemical, high‑temperature: 3–6 months

Step-by-Step Inspection Procedure

Step 1: Prepare for Inspection

• Clean the sling to remove dirt, oil, or debris
• Ensure adequate lighting
• Have inspection checklist ready
• Check the sling’s identification tag is legible

Step 2: Visual Examination

Inspect the entire length of the sling, including:

• Webbing surfaces — Both inside and outside
• Stitching — All sewn areas
• Fitting attachments — Hooks, eyes, links
• Identification label — WLL and material info

Step 3: Functional Check

• Bend the sling to check for broken yarns
• Check for flexibility loss
• Verify no knots or kinks
• Ensure fittings rotate freely

Sling Rejection Criteria: When to Retire Immediately

The following conditions mandate immediate removal from service:

Inspection Frequency Guidelines

Documentation: Maintain Inspection Records

Proper records protect your company and workers. Maintain asling inspection log including:

• Date of inspection
• Inspector name
• Sling identification number/tag
• Condition noted
• Action taken (passed, removed, repaired)
• Signature

💡 Best Practice: Assign a unique ID to each sling and track its service history. Replace slings proactively based on service age and usage conditions—not just when they fail inspection.

Safe Disposal: How to Retire Slings

When a sling reaches its retirement criteria:

1. Mark it clearly — Use bright paint or tag as “UNSAFE”
2. Remove from service immediately — Isolate from usable equipment
3. Document the retirement — Record reason, date, inspector
4. Dispose properly — Cut into pieces to prevent reuse, or recycle per local regulations