Spectrum 8 Alloy Chain Slings
WORKING LOAD LIMIT - 4 TO 1 DESIGN FACTOR
| Spectrum 8 Alloy Chain Size | Single Leg | Double Leg | Triple and Quad Leg | |||||
| (mm) | (in.) | |||||||
| 6 | 7/32 | 2100 | 3600 | 3000 | 2100 | 5450 | 4450 | 3150 |
| 7 | 1/4 (9/32) | 3500 | 6100 | 4900 | 3500 | 9100 | 7400 | 5200 |
| 8 | 5/16 | 5400 | 9300 | 7600 | 5400 | 14000 | 11400 | 8100 |
| 10 | 3/8 | 7100 | 12300 | 10000 | 7100 | 18400 | 15100 | 10600 |
| 13 | 1/2 | 12000 | 20800 | 17000 | 12000 | 31200 | 25500 | 18000 |
| 16 | 5/8 | 18100 | 31300 | 25600 | 18100 | 47000 | 38400 | 27100 |
| 20 | 3/4 | 28300 | 49000 | 40000 | 28300 | 73500 | 60000 | 42400 |
| 22 | 7/8 | 34200 | 59200 | 48400 | 34200 | 88900 | 72500 | 51300 |
| 26 | 1 | 47700 | 82600 | 67400 | 47700 | 123900 | 101200 | 71500 |
| 32 | 1 1/4 | 72300 | 125200 | 102200 | 72300 | 187800 | 153400 | 108400 |
For additional information, see page 123 and 128.
The design factor of 4 to 1 on Spectrum 8 Alloy Chain agrees with the design factor used by the International Standards Organization (I.S.O) and ANSI B30.9 is the preferred set of Working Load Limit values to be used.
TO MAKE YOUR CROSBY SPECTRUM 8 ALLOY CHAIN SLING
Follow these simple steps in making a sling assembly:
Determine the maximum load to be lifted by the sling assembly.
Choose the type of sling assembly suited for the shape of the load and the size of the sling assembly for the load to be lifted. The decision must take into account the angle of the sling legs in multileg slings.
Determine the overall reach for bearing point of master link to bearing point on hook.
Select components, assemble chain and components. Affix sling identification tag to sling. The tag is available from your Crosby Distributor. The tag should be stamped with size chain, reach, type sling, Working Load Limit at a specific angle of lift, and some identifying number for record keeping.
If measurement comes in the link, cut the following link. For two leg type count the links and use an even number for clevis hooks and an odd number for eye hooks. This will position hooks in the same plane. In multileg slings always use the same number of links in each leg.