Hey Rich, thanks for reaching out. Do you plan on using for something outside of crevasse rescue? When rigged in the current configuration it has a 6:1 pull ratio, so in theory it's capable of pulling up to 6x whatever your arms will let you pull. The manual doesn't state a working load limit though, so I can't imagine it's strong enough to rig up anything with rope work. It does state that it's intended for emergency use only, which gives you a pretty good idea of what it's designed to handle.