Synthetic Web Sling Inspection and Safety
The Problem
Synthetic web slings are essential tools for lifting, hoisting, and moving heavy loads, but they can fail catastrophically if damaged, improperly inspected, or poorly maintained. A failed sling can cause dropped loads, serious injuries, or fatalities. The issue is simple: damaged slings are a preventable safety risk. Today, we’ll discuss how to properly inspect synthetic web slings and take them out of service when necessary.
Identify the Hazards
Identify the Hazards
- Dropped Loads – Risk of serious injury or property damage.
- Injuries – Crushed limbs, lacerations, or fatalities caused by falling items.
- Compromised Equipment – Damaged fittings or webbing give a false sense of safety.
Common hazards include:
- Cuts, abrasions, or fraying
- Heat or UV damage
- Chemical exposure
- Makeshift repairs or unreadable sling tags
Safety Practices and Preventative Measures
Visual Inspection for Cuts and Abrasions
- Look for cuts, fraying, or nicks along the webbing.
- Action: Tag and remove damaged slings from service immediately.
Inspect Stitching
- Check for broken, loose, or rotten threads.
- Action: Faulty stitching compromises strength – do not use.
Examine Load-Bearing Fittings
- Inspect lifting rings and other fittings for cracks, deformation, or corrosion.
- Tip: If the fitting is damaged, the sling is unsafe.
Inspect Eye Loops
- Look for damage, twisting, or stretching in the eye loops.
- Damaged loops lower the sling’s lifting capacity.
Avoid Knots or Makeshift Repairs
- Never tie knots or attempt temporary repairs.
- Action: Tag and remove such slings from service.
Check for Heat Damage
- Look for melting, charring, or hard spots.
- Action: Heat damage weakens the sling – replace it.
Check for UV Damage
- Inspect for fading, brittleness, or discolouration.
- UV damage deteriorates the synthetic fibres.
Inspect for Chemical Exposure
- Signs include staining, discolouration, or stiffness.
- Action: Seek advice from your supervisor before reuse.
Moisture or Mildew Damage
- Signs of mildew or waterlogging can weaken the sling over time.
- Action: Remove from service if any is detected.
Ensure Sling Tag is Legible
- The tag must clearly state the sling’s rated capacity and safety information.
- Action: If the label is missing or unreadable, do not use the sling.
Real-Life Case or Scenario
A worker used a synthetic sling with minor fraying and a tear. During the lift, the sling failed and dropped a heavy load. No one was hurt, but the incident caused serious delays and damage. A proper pre-use inspection would have prevented this.
Employee Responsibilities
- Inspect slings before every use.
- Tag and report defective slings.
- Never use slings with visible damage, missing tags, or makeshift repairs.
- Raise any concerns with your supervisor immediately.
Employer Responsibilities
- Provide high-quality, certified slings that meet AS/NZS 4497 standards.
- Train workers on safe inspection and handling procedures.
- Replace damaged or out-of-service slings promptly.
- Monitor storage conditions to prevent UV or chemical damage.
Discussion & Questions
- “What damage do you typically see on synthetic slings during inspection?”
- “Have you ever removed a sling from service? What triggered the decision?”
- “Do you feel confident identifying damage or potential hazards?”
Encourage workers to share experiences and concerns.
Commitment/Action Plan
Let’s commit to inspecting every sling before use. If there’s any doubt about its condition, don’t take a chance—tag it, remove it, and report it. A two-minute inspection can prevent a life-altering accident.
Wrap-Up
Synthetic web sling failures are completely preventable. Inspections and safe handling practices protect everyone on site. Let’s do our part to maintain a safe lifting environment. Thanks for putting safety first.
Standards Overview
- WorkSafe NZ requires lifting gear to be inspected regularly and removed from service if unsafe (refer to AS/NZS 4497.2:1997).
- Employers must ensure all lifting gear is fit for purpose and inspected by a competent person before use.
Disclaimer
These toolbox talks are provided for informational and educational purposes only and are not a substitute for professional legal, health and safety, or regulatory advice.
The content reflects recognised best practices and general industry standards as at the date of publication. However, it may not be applicable to all workplace environments or specific operational contexts.
It is the responsibility of the Person Conducting a Business or Undertaking (PCBU), as well as officers, workers, and other duty holders under the Health and Safety at Work Act 2015 (HSWA), to ensure compliance with all relevant laws, regulations, and WorkSafe New Zealand guidance.
The authors, presenters, and distributors of this toolbox talk disclaim all liability for any loss, damage, or injury arising from the use or reliance on the information provided. Users should seek advice from a suitably qualified health and safety professional or legal advisor for guidance tailored to their specific circumstances.
Always follow your organisation’s policies, procedures, and safe work practices to manage risks and maintain a safe and healthy workplace.
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