Rigging is an essential aspect of crane operations, and understanding the various techniques is crucial for safety, efficiency, and effectiveness on the jobsite. As a professional in the construction industry, you must know about the different types of crane rigging techniques. Proper knowledge will help you run your construction operation smoothly and safely.
Single-Part Line
A single-part line is the simplest and most used rigging technique. Operators attach a single line to the object being lifted, and the crane hoists it straight up. While straightforward, this method is ideal for lighter loads that don’t require additional stabilization or weight distribution. A single-part line is great for quick, simple lifts where speed and efficiency are key, such as moving smaller equipment or materials on construction sites.
Two-Part Line
In a two-part line technique, two lines lift the object, providing greater stability and control compared to a single-part line. This method is often better for larger or heavier loads, reducing the strain on each line and minimizing swinging during the lift. This line is especially useful in scenarios where the load’s weight exceeds the capacity of a single line, making sure that the load remains secure and balanced throughout the process.
Multipart Line
Building on the two-part line, the multipart line involves using multiple lines to lift a load. This technique significantly increases the crane’s lifting capacity and is commonly used for extremely heavy or oversized objects. The additional lines guarantee even weight distribution and extra stability, making it possible to safely lift objects such as large steel beams or industrial machinery. This method is a go-to option for projects that require top-level precision and safety.
Double-Lined Basket Hitch
The double-lined basket hitch is a special method crane operators use to lift long or irregularly shaped objects. This technique involves using two slings arranged in a basket-like shape around the load for even weight distribution and reducing the risk of damage to the object. The double-lined basket hitch is particularly effective when handling delicate or fragile items, as the basket shape minimizes pressure points on the load, preventing undue stress or distortion during the lift.
Bridle Sling
A bridle sling uses several slings connected to a single central point, such as a crane hook. This technique is ideal for lifting loads with multiple attachment points, making sure that the weight distributes evenly and reducing the likelihood of shifting during the lift. With its versatility, the bridle sling is common in construction and industrial settings to lift objects like precast concrete panels or large metal frameworks.
Choker Hitch
The choker hitch is a versatile technique used for lifting cylindrical or rounded objects, such as pipes or logs. This technique involves creating a loop around the load and securing it tightly to the crane hook. This method provides excellent grip and prevents the load from slipping during the lift. The choker hitch is a big part of industries like forestry, construction, and shipping. If you need to securely handle round materials, the choker hitch is your best choice.
Vertical Basket Hitch
As the name suggests, this technique involves lifting an object in a vertical position. Multiple slings attach to different points on the load so it remains upright throughout the lift. This method is particularly useful for transporting tall or fragile items, such as glass panels, columns, or large tanks, where maintaining the vertical alignment of the object is crucial to avoid damage.
Straight Lift
The straight lift is one of the most basic rigging techniques. Operators attach a single line to the load, lifting it straight up without additional support or stabilization. This method is best suited for light and compact objects, such as construction materials or crates, where there is minimal risk of the load shifting or swinging during the lift. The straight lift is a simple and effective technique for quick, straightforward jobs.
Diagonal Lift
In a diagonal lift, operators attach two slings to opposite corners of the object, creating a diagonal lifting pattern. This technique is useful for stabilizing loads that are long or have uneven weight distribution, guaranteeing a smoother lift. The diagonal lift is used for objects such as structural beams or long containers, where having stability during the lift is critical to prevent tipping or swinging.
Basket Hitch
Like the double-lined basket hitch, this technique uses multiple slings arranged in a basket shape to cradle the load. It’s common for lifting bulky or irregularly shaped objects that require additional support to prevent damage. The basket hitch is particularly effective for heavy or awkwardly shaped equipment, providing a secure, balanced lift while ensuring the load remains intact.
Forklift Hitch
This method is specifically for use with forklifts. Straps or chains attach to the forklift’s forks, enabling it to lift and transport heavy loads. It’s common in warehouses and industrial settings for quick and efficient lifting. The forklift hitch is ideal for moving pallets, machinery, or other large items that require careful handling within confined spaces, such as loading docks or storage facilities.
Parallel Sling Lift
In a parallel sling lift, operators will place two slings parallel to each other under the load. This setup provides excellent stability and control, making it ideal for long or wide objects that require even weight distribution during the lift. It’s a common method for handling items like steel plates, wooden planks, or wide containers, guaranteeing that the load remains steady and balanced throughout the process.
Load-Equalizing Technique
The load-equalizing technique involves using multiple slings to evenly distribute the weight of the load. This technique reduces stress on any one sling and minimizes the risk of structural failure. It’s especially useful for lifting heavy or irregularly shaped objects, such as industrial equipment or large construction materials. By evenly spreading the weight, this technique ensures a safer and more efficient lift, even under challenging conditions.
With this exploration of the different types of crane rigging techniques, hopefully, you have a better understanding of the role that crane and rigging companies play during construction. Here at Heave Ho! Crane & Rigging, we know how important having a reliable rigging company on your side can be, which is why we’ve made sure that we’re that company. Work with us and our team to make sure your next project is a success!