A crane can be in perfect mechanical condition, freshly inspected and fully certified, and still drop a load if the rigging underneath the hook fails. Below-the-hook devices and slings take the daily wear that the crane itself never sees, and they are also the piece of the lifting system most likely to get inspected inconsistently, stored improperly, or replaced only after visible damage shows up.
For facilities in Cincinnati, Dayton, Louisville, Indianapolis, Lexington and the surrounding region, American Industrial Repair supplies, inspects and services lifting devices, scales and slings alongside our overhead crane and hoist work. This guide covers the most common below-the-hook devices and sling types, what federal standards require, and how to build an inspection routine that protects both your equipment and your crew.
Need help evaluating your facility's rigging inventory? Contact American Industrial Repair for a free assessment, or ask about scheduling on-site crane and rigging safety training for your operators.
In this article:
Common examples include lifting beams and spreader bars, which distribute the load across multiple pick points to keep slings at a safe angle and prevent tipping; C-hooks and coil hooks, used for handling coiled steel and similar cylindrical loads; vacuum lifters, common in facilities handling sheet stock, glass or flat panel material; and lifting magnets, used for handling ferrous plate, bar stock and scrap. Each of these devices carries its own rated capacity, and that rating is only valid when the device is inspected, maintained and used within its designed configuration.
Common Types of Slings Used with Overhead CranesSlings are the most frequently used rigging component in most facilities, and the right choice depends on the load, the environment and how often the sling gets used.
Wire Rope SlingsWire rope slings offer high strength-to-weight capacity and hold up well in general industrial environments. They resist abrasion better than synthetic options but can develop broken wires, kinks or corrosion over time, all of which are inspection items.
Chain SlingsChain slings are the standard choice for hot, sharp-edged or high-heat applications, such as handling forgings or castings, where a synthetic sling would be damaged quickly. Alloy chain slings are durable but must be inspected for stretch, gouges and deformed links, since chain does not always show visible damage the way a frayed wire rope does.
Synthetic Web and Round SlingsSynthetic slings, made from nylon or polyester, are lightweight, flexible and protect finished or coated surfaces from scratching better than wire rope or chain. Their main vulnerability is cuts, UV exposure and chemical degradation, so they require frequent visual inspection and are generally not rated for high-heat environments.
INSERT INFOGRAPHIC HERE — Reference graphic: Sling types at a glance, plus daily vs. periodic inspection checklist.
OSHA and ASME Requirements for Rigging InspectionsRigging inspection requirements are addressed under multiple federal standards, and facilities are responsible for knowing which apply to their equipment. The Occupational Safety and Health Administration's slings standard, 29 CFR 1910.184, sets requirements for wire rope, chain, and synthetic sling inspection, rated capacity documentation and removal criteria. Below-the-hook devices and rigging hardware are also commonly evaluated against consensus standards published by the American Society of Mechanical Engineers, including ASME B30.9 for slings and ASME B30.20 for below-the-hook lifting devices, both of which are widely referenced by insurers and safety auditors even where not directly mandated by OSHA.
These standards work alongside the broader overhead crane inspection requirements we cover in our guide to OSHA overhead crane inspection requirements, since a fully compliant crane inspection program still needs a separate, documented process for the rigging that attaches to it.
Frequent, Periodic and Pre-Use Inspection: What's the Difference?OSHA and ASME both describe rigging inspection in tiers, and facilities sometimes conflate them:
Pre-use (initial) inspection happens before every lift, performed by the rigger or operator, and is a quick visual check for obvious damage, correct configuration and proper rated capacity for the load.
Frequent inspection is a more thorough visual check performed by a designated, qualified person at intervals based on service severity, ranging from daily to monthly for equipment in regular use.
Periodic inspection is a documented, in-depth inspection performed at least annually, often by a third party or specially trained technician, and is typically kept on file as part of a facility's compliance records.
Skipping tiers, or treating a pre-use glance as equivalent to a documented periodic inspection, is one of the more common gaps we find when evaluating a new client's rigging program.
Common Signs of Rigging Wear and Failure PointsEvery type of sling and below-the-hook device has its own removal criteria, but a few warning signs apply broadly: broken or cut wires in a wire rope sling, cracked, stretched or bent links in a chain sling, cuts, burns, abrasion or discoloration in a synthetic sling, missing or illegible capacity tags, corrosion or pitting on hooks and hardware, and visible deformation on a lifting beam, spreader bar or other custom below-the-hook device. Any of these findings should remove the item from service immediately, not at the next scheduled inspection.
Building a Rigging Inspection Program for Your FacilityA strong rigging inspection program combines three things: trained personnel who know what to look for, a documented schedule that matches how heavily each piece of equipment is used, and a reliable source for replacement slings, hardware and custom below-the-hook devices when equipment is condemned.
American Industrial Repair supports all three. Our technicians can inspect and certify slings and below-the-hook devices alongside routine crane service, supply new lifting devices, scales and slings sized to your application, and provide on-site crane and rigging safety training so your operators and riggers know exactly what to check before every lift. Facilities running gantry, jib, bridge or monorail systems all rely on the same fundamentals: the crane only lifts as safely as the rigging attached to it.
Protect Your Crew and Your EquipmentRigging failures are preventable, and most start with a device or sling that should have been removed from service long before it failed. If it has been a while since your facility's slings and below-the-hook devices were formally inspected, or you are unsure which standards apply to your equipment, request a free quote from American Industrial Repair. We serve manufacturing and industrial facilities throughout Cincinnati, Dayton, Louisville, Indianapolis, Lexington and Columbus with 24/7 crane, hoist and rigging support.
For facilities in Cincinnati, Dayton, Louisville, Indianapolis, Lexington and the surrounding region, American Industrial Repair supplies, inspects and services lifting devices, scales and slings alongside our overhead crane and hoist work. This guide covers the most common below-the-hook devices and sling types, what federal standards require, and how to build an inspection routine that protects both your equipment and your crew.
Need help evaluating your facility's rigging inventory? Contact American Industrial Repair for a free assessment, or ask about scheduling on-site crane and rigging safety training for your operators.
In this article:
- What are below-the-hook lifting devices?
- Common types of slings used with overhead cranes
- OSHA and ASME requirements for rigging inspections
- Frequent, periodic and pre-use inspection: what's the difference?
- Common signs of rigging wear and failure points
- Building a rigging inspection program for your facility
Common examples include lifting beams and spreader bars, which distribute the load across multiple pick points to keep slings at a safe angle and prevent tipping; C-hooks and coil hooks, used for handling coiled steel and similar cylindrical loads; vacuum lifters, common in facilities handling sheet stock, glass or flat panel material; and lifting magnets, used for handling ferrous plate, bar stock and scrap. Each of these devices carries its own rated capacity, and that rating is only valid when the device is inspected, maintained and used within its designed configuration.
Common Types of Slings Used with Overhead CranesSlings are the most frequently used rigging component in most facilities, and the right choice depends on the load, the environment and how often the sling gets used.
Wire Rope SlingsWire rope slings offer high strength-to-weight capacity and hold up well in general industrial environments. They resist abrasion better than synthetic options but can develop broken wires, kinks or corrosion over time, all of which are inspection items.
Chain SlingsChain slings are the standard choice for hot, sharp-edged or high-heat applications, such as handling forgings or castings, where a synthetic sling would be damaged quickly. Alloy chain slings are durable but must be inspected for stretch, gouges and deformed links, since chain does not always show visible damage the way a frayed wire rope does.
Synthetic Web and Round SlingsSynthetic slings, made from nylon or polyester, are lightweight, flexible and protect finished or coated surfaces from scratching better than wire rope or chain. Their main vulnerability is cuts, UV exposure and chemical degradation, so they require frequent visual inspection and are generally not rated for high-heat environments.
INSERT INFOGRAPHIC HERE — Reference graphic: Sling types at a glance, plus daily vs. periodic inspection checklist.
OSHA and ASME Requirements for Rigging InspectionsRigging inspection requirements are addressed under multiple federal standards, and facilities are responsible for knowing which apply to their equipment. The Occupational Safety and Health Administration's slings standard, 29 CFR 1910.184, sets requirements for wire rope, chain, and synthetic sling inspection, rated capacity documentation and removal criteria. Below-the-hook devices and rigging hardware are also commonly evaluated against consensus standards published by the American Society of Mechanical Engineers, including ASME B30.9 for slings and ASME B30.20 for below-the-hook lifting devices, both of which are widely referenced by insurers and safety auditors even where not directly mandated by OSHA.
These standards work alongside the broader overhead crane inspection requirements we cover in our guide to OSHA overhead crane inspection requirements, since a fully compliant crane inspection program still needs a separate, documented process for the rigging that attaches to it.
Frequent, Periodic and Pre-Use Inspection: What's the Difference?OSHA and ASME both describe rigging inspection in tiers, and facilities sometimes conflate them:
Pre-use (initial) inspection happens before every lift, performed by the rigger or operator, and is a quick visual check for obvious damage, correct configuration and proper rated capacity for the load.
Frequent inspection is a more thorough visual check performed by a designated, qualified person at intervals based on service severity, ranging from daily to monthly for equipment in regular use.
Periodic inspection is a documented, in-depth inspection performed at least annually, often by a third party or specially trained technician, and is typically kept on file as part of a facility's compliance records.
Skipping tiers, or treating a pre-use glance as equivalent to a documented periodic inspection, is one of the more common gaps we find when evaluating a new client's rigging program.
Common Signs of Rigging Wear and Failure PointsEvery type of sling and below-the-hook device has its own removal criteria, but a few warning signs apply broadly: broken or cut wires in a wire rope sling, cracked, stretched or bent links in a chain sling, cuts, burns, abrasion or discoloration in a synthetic sling, missing or illegible capacity tags, corrosion or pitting on hooks and hardware, and visible deformation on a lifting beam, spreader bar or other custom below-the-hook device. Any of these findings should remove the item from service immediately, not at the next scheduled inspection.
Building a Rigging Inspection Program for Your FacilityA strong rigging inspection program combines three things: trained personnel who know what to look for, a documented schedule that matches how heavily each piece of equipment is used, and a reliable source for replacement slings, hardware and custom below-the-hook devices when equipment is condemned.
American Industrial Repair supports all three. Our technicians can inspect and certify slings and below-the-hook devices alongside routine crane service, supply new lifting devices, scales and slings sized to your application, and provide on-site crane and rigging safety training so your operators and riggers know exactly what to check before every lift. Facilities running gantry, jib, bridge or monorail systems all rely on the same fundamentals: the crane only lifts as safely as the rigging attached to it.
Protect Your Crew and Your EquipmentRigging failures are preventable, and most start with a device or sling that should have been removed from service long before it failed. If it has been a while since your facility's slings and below-the-hook devices were formally inspected, or you are unsure which standards apply to your equipment, request a free quote from American Industrial Repair. We serve manufacturing and industrial facilities throughout Cincinnati, Dayton, Louisville, Indianapolis, Lexington and Columbus with 24/7 crane, hoist and rigging support.
