How to Measure the Efficiency of 2 Leg Chain Sling

UK Lifting Store

Introduction Calculation of 2 Leg Chain Sling efficiency depends on the dimension and strength of the master link, master coupling-link, sub-coupling link, chain-length, and the bottom-coupling link on each chain. The diameter of the master link and length of every chain determine reach capacity of the sling. Two-slings are generally used in construction sites where rigging of pipes and heavy construction loads is an essential task.

A qualified service engineer can assemble the complete system using the instructions of the operation manual. The position of release and close valves has to be very close to the central assembly for easy grabbing and lifting of the drum. Head cap screw and socket set screw of the vertical column help to hold the drum in the vertical position firmly. Steel handles play an important role in increasing the hydraulic pressure from the base up to the highest vertical holding position. Assembly of foot pump is to be central in the base to ensure maximum pressure build-up within the minimum time. Resistance to corrosion and rusting is one of the key factors that can affect the durability and working efficiency of the system. The steel handles to connect directly to the hydraulic pump through the lubrication chamber. Regular maintenance is the key to enhancing the working efficiency of the system while balancing the safety factors.

Vertical Load Capacity – Construction Projects The rated vertical load capacity of the 2 Leg Chain Sling dependsmeter, on the mechanical strength of master link as the primary parawhich in turn depends on the strength and stability of the beam to which the master link is attached. Two leg chain slings are extensively used in the construction industries for the purpose of lifting heavy drums and medium-size containers within the production plants. They are connected to the horizontal beams that run along the length of the factory's production unit. It is essential for the service engineers to check the dimensions of chain slings before choosing them for a particular lifting and carrying operation. Some of the most commonly considered parameters could be

• Master and sub-link diameter • Tensile strength of links • Chain length and strength • Load dimension • The ratio between load dimension and chain length • Temperature range within the plant These are some of the parameters that can affect the overall efficiency of a chain sling. The centre of gravity on the load plays a very important role in balancing it while carrying. The angle of load balancing should be preferably 90-degrees with the horizontal line across the load to keep it in a perfectly balanced position.

Load Evaluation – Safety and Security Procedures Evaluation of the load should be always done based on actual weighing before the rigging operation. Measuring the load dimension is the second most important aspect of efficient rigging. If the chain sling is to carry two loads simultaneously, the dimension of both loads should be even for balancing centre of gravity. Distance between master link and load is the reach, which varies with the size and weight of the load. Higher loads can be carried off the angle between chain and load is 90-degrees. Load carrying capacity may vary when the angle between chain and load decreases. It is possible to connect both the slings to a single load for carrying when the weight is more than 2000LBs. In such cases, the angle between chain and load should be preferably from 30-degrees to 45-degrees.

Hitching Strength – Efficient Load Handling Lower end fitting of 2 Leg Chain Sling should have higher hitching capacity for carrying multiple types of the load from the position of loading to the position of unloading.

Conclusion The application of 2 Leg Chain Sling in the rigging operations is to improve the load-carrying capacity and safety factors. Periodical maintenance of sling will ensure durability and efficiency in the long run.

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