Building the Carabiner Breaker

Рет қаралды 231

Peak Instruction - Pete Knight & Associates

18 күн бұрын

People know me as a bit of a gear geek, and I've had lots of old and knackered kit donated over the years for breaking apart or showing on PPE inspector training courses. I've never been able to break hardware reliably and safely though, so it was about time I got around to building a tool that could. I've been planning this for a while now and after waiting ages for the final parts to be manufactured and delivered, I'm finally able to assemble my carabiner breaking rig. In this video I'll talk you through all the different components as you watch me build the rig up, and you'll see my first tests on a couple of old carabiners. I'll film some more break testing in future on some of the many samples people have sent me in over the years, and I'm really looking forward to sharing that with you all on KZfaq or in person on one of my training courses. Thanks so much for watching.
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@CaverPete
www.undergroundspecialist.co.uk
www.peakinstruction.com/
#breaktesting #carabiner #karabiner #PPEtesting #caving #climbing #geartesting #peakinstruction #PeteKnight

Пікірлер: 3

@GT-ce9ic 16 күн бұрын

Hey Pete, Do you have any products in mind for a heavier duty hydraulic pump or do you think it could withstand something like a “cheater bar” to give you some more leverage? I’ve got a very similar car bodywork repair hydraulic pump and i’m very dubious that it can actually put out the force advertised on the box. thanks, cal

@PeakinstructionPeteKnight 16 күн бұрын

I haven't looked at alternatives to this pump I'm afraid. I was hoping to keep this setup mobile so I discounted electric hydraulic systems or anything likely to be significantly heavier. I think if you want more pulling power, you need to move away from hand pumped rams. Extending the pump handle for more leverage is a tricky one. It does not feel at all flimsy on this pump, but I'm not sure how well the arm pivot would take the extra force of a longer lever. It's good kit, but not mega beefy hardware. The brand of pump and pull ram I have is Porta Power, and they get good reviews. I'm sure I can get 50kN+ out of it, which is the limit of my test bed sensor anyway. I have been up to 40kN already no problem, so 4T equiv force. If you need more force, can your setup pull on a 2:1 with chain or cable and a big pulley? That way you can exsert half the force at the pump than the force on the sample/car/load.

@GT-ce9ic 16 күн бұрын

A pulley or two would be a lot cheaper than buying a bigger hydraulic setup or electric winch. I’ll have a look at steel cable and some pulleys to take it. I suppose the cable itself won’t need to be able to take the full output force. i would guess the stress would be divided equally across all strands of the pulley system, although i wonder whether there’s different amounts of stress in the slower moving strands close to the load compared to the fast moving strands on the hauling side.