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Can I Join Two Flat Slings Together to Extend the Length?

A flat sling that is just a few feet too short can bring a lifting operation to a halt. The immediate thought: why not just join two slings together? The practice of connecting slings is common, but according to OSHA 1910.184(c)(2) and ASME B30.9, slings shall not be shortened or lengthened by knotting or twisting, nor joined by knotting .

Polyester vs. Nylon Flat Slings: Chemical Resistance and Elongation Profiles

Choosing between a polyester flat sling and a nylon flat sling is not a matter of one being "better" than the other—it depends entirely on the application environment. Both materials share the same working load limits and temperature range (-40°C to 100°C) under EN 1492-1 , but differ significantly in elongation, chemical resistance, and moisture response. Nylon stretches 6–10% at rated load and resists alkalis but is destroyed by acids . Polyester stretches only 3–4% and resists acids but is damaged by alkalis . This guide provides a detailed comparison to help engineers and rigging professionals select the right flat sling material for their specific operating conditions.

When to Replace Flat Slings: A Guide to Frequent and Periodic Inspection Criteria

Knowing when to replace flat slings is essential for rigging safety and regulatory compliance. Industry standards ASME B30.9 and EN 1492-1 define two levels of inspection—frequent (daily or pre-use) and periodic (annual or semi-annual)—each with specific criteria for determining when a sling must be removed from service. This guide explains the difference between frequent and periodic inspections, provides detailed checklists for each, and outlines the retirement criteria that trigger sling replacement. For rigging supervisors, safety managers, and operators, this is a practical reference for maintaining a safe sling inventory.

The Physics of Flat Slings: How Wide Surfaces Reduce Pressure and Protect Loads

A flat sling does more than just lift a load—it protects it. The wide, flat webbing surface distributes the load's weight over a larger area, significantly reducing the pressure at any single point. This is the fundamental physics principle behind flat slings: Pressure = Force ÷ Area. By increasing the contact area, flat slings minimize the risk of surface damage, dents, and crushing—making them the preferred choice for lifting delicate, finished, or easily damaged materials. This guide explains the physics of pressure distribution, compares flat slings to other lifting solutions, and provides practical guidance for selecting the right sling width for your application.

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Can I Join Two Flat Slings Together to Extend the Length?

Polyester vs. Nylon Flat Slings: Chemical Resistance and Elongation Profiles

When to Replace Flat Slings: A Guide to Frequent and Periodic Inspection Criteria

The Physics of Flat Slings: How Wide Surfaces Reduce Pressure and Protect Loads

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