I’ve got a CAMP Lift that can bear a load of 100 kg (~220lbs). When I fall on the ascender, all my weight is put on it. I, alone, am not at the limit of the device. But by falling and it catching my fall, I’ve exerted plenty of force on it. Granted, the force from the fall is distributed through the rope & other gear throughout my system but just how much of the force is the device absorbing from the fall? A simple scenario - I’m set up for TR solo, climbing on, then take a fall of 2-4 feet. My primary device is the CAMP Lift.
I know there’s a difference between static weight & force. However, there’s nothing in the instruction manual about force rating (granted the device isn’t manufactured to be a belay device) except that the anchor must be able to handle 15 kN. But how much force could the device handle given the max load limit?
Hopefully that wasn’t confusing. I know there’s PLENTY more factors and considerations that go into a fall but just trying to understand some more.
David K
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Apr 19, 2019
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The Road, Sometimes Chattan…
· Joined Jan 2017
· Points: 434
Matthew Wille wrote: A simple scenario - I’m set up for TR solo, climbing on, then take a fall of 2-4 feet. My primary device is the CAMP Lift.
If you're taking a fall of 2-4 feet on your device, your TR solo is set up dangerously wrong. Is this a hypothetical scenario for the purpose of discussion, or is this actually your TR solo setup?
FYI this style of device has been shown to cut ropes at a force of 5.5kN (10.5mm rope). So you definitely don't want any slack in the system (especially near the anchor), when using this device for TR solo. This is not generally true with TR solo, however, as David implies. After all, plenty of people TR solo with a GriGri, taking in slack as they go. This is fine as long as you're using a dynamic rope.