Accurately determining load weights is a critical pre-lift safety step to ensure lifts are within equipment weight limits. Overloading can result in costly equipment damage or dangerous job site incidents. Here are the best practices for load weight calculation approved by safety equipment suppliers in the UAE.
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Visual inspection
In many cases, a load’s weight can be estimated through comparison to known weights, size, and material density. For example, a standard 55-gallon drum full of water weighs approx. 450 lbs. Experienced riggers learn to quickly gauge common industrial items. However, visual inspection alone is not a substitute for formal measurement when risks are present.
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Scale weighing
For definitive weights, use a floor scale, portable scale, or suspended scale secured to lifting points. Roll or lift loads gently onto the scale surface without stressing the apparatus. Record weights clearly. Floor and portable truck scales require rated load capacities exceeding expected weights to ensure accuracy. Suspended scales involve overhead lifting and require appropriate rigging set up by trained professionals.
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Calculation by material
When direct weighing is impractical, break loads into materials and then calculate using reference densities. Common values are: Pure Iron – 490 lbs/ft3, Aluminum – 170 lbs/ft3, Steel – 500 lbs/ft3. Measure or take volumetric dimensions, then multiply by the material density to find weight in pounds or kilograms. Account for any non-uniform mixed materials. Consult safety equipment suppliers in UAE for industrial-grade reference materials.
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Lifting component weights
Don’t forget to include all hardware, like slings, shackles, spreader beams, etc. in weight calculations. These can significantly influence the overall suspended load. Weight specifications are usually marked or available from manufacturers. Having separate weight allowances ensures all lifting components stay within their safe working loads too.
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Documentation
Record and clearly communicate all load weight data to the rigging team. Note calculation methods and submit supporting material to verify weights if needed later. Over-communication minimizes lifting errors caused by poor or assumed weight information.
Proper weight determination and compliance with specified equipment limits is an essential best practice promoted by responsible safety equipment suppliers in UAE, as it gives the lifting professionals reliable data to plan safe, compliant lifts. It protects costly infrastructure and personnel by ensuring equipment is not overloaded.
Categorised in: Safety equipment in UAE
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