How They Wrap Hydraulic Hoses with Spiral Protective Sleeves

When hydraulic fittings fail, the results can be catastrophic, as we saw here. Hydraulic hoses themselves are also vulnerable, which is why machines like this tree-processing behemoth will have their hoses wrapped in protective spirals made by companies like Caplugs:

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But how do they get the spiral wrapped around the hose? You probably picture some elaborate and gigantic manufacturing machine. Instead, it’s a simple rig that amounts to two tubes and a hand drill, demonstrated here by protective sleeve manufacturer Havel:

Inventing jigs like this must be super-satisfying work, especially that first time that you get it to work.

Source: core77

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