Abseil ring thickness
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What's the consensus on stainless steel rap ring thickness? 25/64 or 10mm seems to be the most common but what about 5/16? Strength does n't seem to be a problem but if it's a well made ring then what issues would users have if they were installed? |
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They wear out faster, it is harder to pull the rope down and they wear the rope faster. |
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Cheers Jim |
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Alex Shaw wrote: ...also known as the bend radius. |
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Besides what Jim said, there's very little price difference between 3/8" and 5/16" stainless steel rod stock, and thus the cost difference in the final product would not be much different. So I guess the question is what benefit do you hope to accommoplish with 5/16" rings? As an alpine anchor that only gets rappelled on they would work fine, a manufacturer would have no problem reaching atleast a 22kn/5000lbs mbs. |
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DrRockso RRG wrote: Thanks. Yes strength is fine but the cost is actually double which is why I'm asking. Answer would seem to be fine for remote, light traffic but for use on a routine sport crag then thicker material is the way to go. |
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The difference in material cost at my supplier is only about 10% between the differently sized material. What are the sources you're comparing? I've been using these for 10mm rings recently and they're pretty nice at a reasonable price. https://verticallstore.com/products/grandwall-stainless-steel-rap-ring I would agree with your assessment. |
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The difference in weight from an 8mm ring to a 10mm ring is 62% so that is the extra material cost. The larger diameter is slightly cheaper but the welding costs more so roughly equal out. |