Drag Chain safety and rating question
Submitted: Wednesday, Aug 21, 2002 at 00:00
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Valdon
I am hoping someone out there may know a bit about drag chains. I have been given one and want to know a bit about it and whether it is suitable for use. How can you tell if it is a rated chain? The links are stamped PWB-65. The links are 40mm long and 25mm deep and about 8mm thick. It is quite old but appears in pretty good condition. I have used it for light work so far but if safe would like to use it for heavier work from time to time.
Thanks
Valdon
Reply By: John - Wednesday, Aug 21, 2002 at 00:00
Wednesday, Aug 21, 2002 at 00:00
Hi Valdon,
Don't know much about this chain, but a good test is to rub one of the links with a file.
If the chain seems to file very easily it is probly a mild steel chain...not all that strong (will stretch and deform before finally breaking).
But if it seems hard to file or won't file at all, it is probly a High tensile chain...much stronger and more suited to your application.
Make sure the hooks at the ends are also rated for you usage.
Cheers
John
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Reply By: Eric - Wednesday, Aug 21, 2002 at 00:00
Wednesday, Aug 21, 2002 at 00:00
Valdon
The chain you have is not that old, it should have a 'p' stamped on every 20th link, if it has, it is rated at 650kg for lifting and has a minimum breaking strain of 6.5 Tones,
Eric
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