Steel choker rigging is a method of lifting and securing loads using steel wire rope slings that are configured in a choker hitch. This technique is widely used in industries such as construction, shipping, and heavy manufacturing, where strong and durable rigging solutions are essential for handling heavy and irregularly shaped loads. Here’s a detailed look at what steel choker rigging entails, its applications, and benefits.
Components of Steel Choker Rigging
Steel Wire Rope Slings: The primary component of steel choker rigging is the steel wire rope sling.
These slings are made from multiple strands of steel wire twisted together, providing exceptional strength and flexibility. Steel wire ropes come in various diameters and configurations to suit different load capacities and lifting requirements.
End Fittings: The ends of the steel wire rope slings are often fitted with eyes, hooks, or other attachments to facilitate easy connection to the load and lifting equipment. The eyes can be either plain or reinforced with thimbles to reduce wear and extend the sling’s life.
Choker Hitch Configuration: In a choker hitch, the steel wire rope sling is wrapped around the load, and one end is passed through a loop or eye at the other end. This creates a cinching effect that tightens around the load as it is lifted, providing a secure grip.
Applications of Steel Choker Rigging
Lifting Cylindrical Loads: Steel choker rigging is particularly effective for lifting cylindrical objects such as pipes, poles, and drums. The choker hitch configuration allows the sling to cinch tightly around the load, preventing it from slipping during the lift.
Securing Irregularly Shaped Loads: When dealing with loads that do not have defined lifting points, such as large pieces of machinery or construction materials, steel choker rigging offers a versatile solution. The flexible steel wire rope can conform to the shape of the load, providing a secure grip.
Heavy-Duty Lifting: In environments where heavy-duty lifting is required, steel choker rigging provides the necessary strength and durability. Steel wire rope slings can handle high loads and harsh conditions, making them ideal for industrial applications.
Benefits of Steel Choker Rigging
Strength and Durability: Steel wire rope slings are known for their high tensile strength and resistance to abrasion, corrosion, and extreme temperatures. This makes them suitable for heavy lifting and harsh working environments.
Flexibility and Versatility: The flexibility of steel wire rope allows it to wrap around complex shapes and secure loads that might be challenging to handle with other types of slings. This versatility is a significant advantage in various lifting scenarios.
Secure Grip: The choker hitch configuration ensures a tight grip on the load, reducing the risk of slippage during lifting operations. This is particularly important when lifting smooth or slippery objects.
Cost-Effective: Steel wire rope slings are durable and have a long service life, reducing the need for frequent replacements. This makes steel choker rigging a cost-effective solution for heavy lifting operations.
Safety Considerations
While steel choker rigging offers many benefits, it is essential to follow safety guidelines to ensure safe lifting operations. Regular inspections of the steel wire rope slings for signs of wear, kinking, or corrosion are crucial. Proper training for rigging personnel on the correct use of choker hitches and adherence to load capacity limits is also vital for maintaining safety.
