Climbing activities, such as ascending tall trees, can be harmful to joints and muscles. Ronin Lifts have has addressed that problem by designing an innovative climbing tool that allows climbers to access the tops of the trees with significantly reduced repetitive stress.
The Ronin Lift was engineered by a group coming from the rescue industry who The Ronin team recognized the need for at-height workers, including tree climbers, to have better access tools for daily activities. The battery-powered personal ascender called the Ronin Lift, and it has allowed many climbers to be more efficient and productive on a daily basis.
How it works
The rope wraps around a capstan-style mechanism inside the device that then self-feeds the rope to load. A manual-tensioning knob adjusts rope tension to increase or decrease the device’s grip on the rope. The climber attaches to one of the two attachment points on the device and uses a secondary backup on the rope, such as a Blake’s hitch or mechanical rope grab. By operating the variable-speed thumbwheel trigger, the device ascends the rope with the climber at a rate of from 0.5 feet per second to 1.7 feet per second. The Ronin Lift has an independent braking system and a speed-reduction gearbox designed to allow climbers to control the descent speed.
The Ronin Lift can ascend 350 feet of rope in a single-line configuration with a maximum load of 400 pounds. It can lift up to 1,200 pounds when using a 3-to-1 mechanical advantage.
A braking mechanism acts as a primary safety feature, in that it is always activated while ascending and stopping. The brake can be manually opened for controlled descent. Some models have a power-reverse function that will assist in fully removing the rope from the device.
The only approved rope construction for use with the Ronin Lift is static, low-elongation kernmantle or aramid rope. The rope size must be between 10 mm and 12 mm in diameter, with low reduction in the rope diameter (recommended under 2% elongation); it should be a very stiff rope that holds its shape under compression. The outer sheath should be at least 32 strands to allow for smooth feeding through the device. Prepare the rope ends before feeding the rope into the device by melting with a lighter and then squeezing the ends into a cone shape.
It is pretty easy to operate, and the lightweight, durable construction makes it an easy go-to for regular use. The main benefit, though, is to the climber. The Ronin Lift can reduce repetitive stress injuries, which will greatly extend the longevity of a climber’s career.
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