Every job site is unique and with so many hoisting options in our industry, it can be a challenge to decide on what to use.
That’s why the team at All Material Handling has come up with a few tips to help you decide on the right tool for the job.
First, how much tension will you be putting on the hoist? For example, if you were pulling a 12,000lb load on wheels on a level smooth surface, you would have a coefficient of friction of .05. Meaning you would need (pull) 12,000lbs. x .05 (coefficient) and a hoist rated for AT LEAST 600lb. Since most hoist manufacturers don’t start their lever hoist ratings until 3/4T, a lever hoist rated for 3/4T would be the right choice for this job.
Second, how are you anchoring the hoist to the load?
When planning your job, it is important to verify that your hoist is properly attached to its load. The hoist must remain in a straight line “in line” with the hook’s saddle to saddle. If you cannot draw a straight line, you are using the hoist wrong. Make sure the chain never encounters anything in its path. Hoist chain should never be used in a hitch. You must also confirm that the hook is not distorted or stretched. If the latch does not close, your hook is distorted or stretched and is not safe to use. You should use slings, pulling clamps, shackles, etc. to properly attach your load to hoists.
Third, how much clearance do you have?
If you’re operating a lever chain hoist in tight quarters, be sure to order the correct rating size and double-check your measurements before ordering the length. The 3 main factors here are:
- Length – the distance the lifting hook can travel between its fully lowered and fully raised positions.
- Reach – being equal to the difference in height between the hang point (top hook, pad eye, or pin) and the saddle of the hook in its lowest position.
- Headroom – the distance from the hang point and the fully raised hook saddle. For hoists with a top hook, the headroom dimension is the distance from the hang point of the top hook and the saddle of the fully raised lower hook.
Once you have made your decision and before using the hoist, make sure it is safe to use. Do a pre-operational inspection. Inspect the hoist per ASME B30.21 recommendations as well as the manufacturer’s recommendations. If you find any abnormalities take the hoist out of service. Also, be sure to inspect all lift points and rigging equipment that will be used before tensioning or lifting to ensure safe and proper operation. In depth examination will not only insure that your job goes smoothly but will also extend the life of your purchase.
Check out All Material Handling’s (AMH) website at www.allmaterialhandling.com next time you are shopping for the right hoist. If you have any questions or would like to get more specifics, please feel free to call the experts at AMH at (877)-543-8264.
