How do you size lifting shackles?
How do you size lifting shackles?
Shackles are sized according to the diameter of the bow section rather than the pin size. Never use a shackle if the distance between the eyes is greater than listed in the manufacturer’s tables.
How much weight can a 3/4 shackle hold?
2.34 lbs. Never exceed Working Load Limit. Inspect Shackles regularly. Replace if worn, distorted or damaged.
How much weight can a 1/4 shackle hold?
This product is suitable for overhead lifting.
| Size | WLL | Approximate Weight Each (lbs) |
|---|---|---|
| 1/4 | 0.5 ton | 0.13 |
| 5/16 | 0.75 ton | 0.21 |
| 3/8 | 1 ton | 0.33 |
| 7/16 | 1.5 ton | 0.47 |
How much weight can a 7/8 shackle hold?
Shackles – Quenched & Tempered
| Nominal Size (in.) Diameter of Bow | Carbon Maximum Working Load (Tons) | Alloy Maximum Working Load (Tons) |
|---|---|---|
| 5/8 | 3-1/4 | 5 |
| 3/4 | 4-3/4 | 7 |
| 7/8 | 6-1/2 | 9.5 |
| 1 | 8-1/2 | 12.5 |
How much weight can a 5/16 shackle hold?
5/16″ Size. Working Load Limit (WLL) : 1300 lbs.
What is the correct specification of shackles?
In terms of correct specification of shackles, there are three main decisions to be made: the SWL, the shape, and the pin type. The working load limit must be at least equal to the total load imposed upon the shackle.
What type of shackle should be used to secure the lift?
Insure screw pin is tight before each lift. Use bolt type shackle for permanent installation. Do not side load round pin shackle. Use screw pin or bolt type to collect slings.
How do you reduce the weight of a shackle?
As the lift angle changes from vertical, the amount of weight the shackle can lift is significantly reduced. Thick. Wd. Lg. Wd. Screw the pin into position by hand for quick installation and removal. They’re for use in low-vibration applications where the shackle remains stationary.
What happens if I remove the shackle from the lifting setup?
When removing shackles from the lifting setup, it is good practice to re-assemble the shackle immediately. Leaving the pins loose can damage the threads. More importantly, as shackles are a forged item the pin and body are individually fettled to fit.
