Web Sling Certification

Reliable annual certifications and inspections for web slings from Hercules Crane and Lifting Supplies. Ensure compliance, minimize risk, and maintain safe lifting operations.

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The Importance of Web Sling Maintenanc

Web slings are lightweight, flexible, and ideal for lifting delicate or irregular loads—but they must be inspected and certified annually under Canadian law. Failure to do so can lead to serious safety hazards and significant financial consequences.

Hercules Crane and Lifting Supplies delivers ASME B30.9-compliant inspection, testing, and certification services. Whether at your site or one of our locations across Canada, our experienced technicians ensure your equipment is safe, compliant, and ready for service.

Protect Your People, Protect Your Business

Incorrectly maintained web slings can fray, tear, or suffer from chemical or UV degradation—resulting in dangerous failures during operation. Regular inspections by qualified professionals help detect early signs of wear and keep your lifting gear in optimal condition.

Detailed Rigging Services We Offer

Our specialty is equipment, products, and services for securing, lifting & rigging applications. Select a specific service below to learn more.

Spreader Bar Service

Certification and maintenance for custom and standard spreader and lifting beams.

Beam Clamp Service

Ensuring the structural integrity and load capacity of various beam clamp types.

Lifting Magnet Service

Inspection, pull testing, and certification for permanent and electro-permanent lifting magnets.

Hoist Service

Maintenance, repair, load testing, and certification for manual, electric, and pneumatic hoists.

Round Sling Service

Inspection of polyester round slings, checking for core damage and cover integrity.

Plate Clamp Service

Functional testing and certification for all types of plate lifting clamps.

Web Sling Service

Thorough examination of synthetic web slings for cuts, abrasions, and chemical damage.

Chain Sling Service

Inspection, repair, load testing, and certification for all grades of alloy chain slings.

Wire Rope Sling Service

Visual inspections, NDT, proof testing, and re-tagging for wire rope slings.

Frequently Asked Questions

Answers to common queries about our rigging inspection and certification services.

To maintain compliance with Web Sling Certification requirements:

  • Normal Service – inspect yearly
  • Severe Service – inspect monthly to quarterly
  • Special Service – inspect as recommended by a qualified person
  • Inspection intervals should never exceed one year


Written records are not required for frequent inspections, but they should be kept. For valid Web Sling Certifications, ASME B30.9, WSTDA, and RS-1 require a documented record of the most recent inspection.

The following conditions will disqualify a sling from Web Sling Certification:

  • Increased stiffness of sling material
  • Acid or caustic burns
  • Melted, burned, or weld spatter damage
  • Holes, tears, cuts, or snags
  • Broken or worn stitching
  • Excessive abrasive wear
  • Knots in any part of the sling
  • Crushed webbing or embedded particles
  • Faded or bleached color
  • Defective fittings (twisted, corroded, cracked, etc.)
  • Exposure to extreme temperatures (below -40°C or above 90°C)

For a sling to qualify for Web Sling Certification, the tag must be:

  • Present and legible
  • Include the manufacturer’s name or trademark
  • Show a manufacturer code or stock number
  • List rated loads for the type of hitches used and their angles
  • Specify the type of synthetic web material
  • Indicate the number of legs (if more than one)
  • Include a serial number or batch number


A sling may be rejected from Web Sling Certification if the tag is missing or unreadable, or if there is a combination of visible issues.

To complete or renew Web Sling Certifications:

  • Visit one of our shops across Canada
  • Or request service through our Mobile Testing Unit
  • All inspections are performed by LEEA-certified technicians
  • All services follow ASME B30.9 standards and industry best practices

Ensure Your Equipment is Safe & Compliant

Don't compromise on safety. Schedule your professional rigging inspection with Hercules Crane and Lifting Supplies today. Our experts are ready to assist you on-site or in our full-service shops.

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