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Have you tried the Unicender?
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Rated: Excellent by: Crawford Turner on: 7/6/11
“This is the greatest thing since sliced bread. It allows for faster ascents and use of items like the foot ascenders for the long ascents. In the tree it allows for easier movement and easy adjustment. It also allows for quick disconnect and reconnect for switching where the top of the line is. It extends the rope life by not burning up the ends with the friction knots. So far it has doubled the life of my rope, so it has more than paid for itself. I use this product everyday and highly recommend it to anyone.”
The Unicender can replace friction hitches, figure 8s, and ascenders! In the doubled rope technique, the Unicender can be used as a mechanical split tail in place of a friction hitch. Because of the ease with which it advances in this configuration, it makes any rope climbing technique easier and faster. In the single rope technique, the Unicender takes the place of both ascenders and descender.
When descending, the Unicender can be used in either the “squeeze to go” configuration like a friction hitch or the “squeeze to stop” configuration like a figure 8. This incredible device works by snaking the rope through the device where smooth wear surfaces apply friction to the line. The Unicender advances easily and gives utmost control over the decent. The Unicender can be used with either 7/16” or 1/2” diameter line without changing any parts, can be easily installed midline.
Morgan Thompson invented the Unicender in 2005. It quickly became very popular for the unprecedented level of control and smoothness of ascent and descent it allows. Rock Exotica took over manufacturing the Unicender which has allowed us to offer this incredible mechanical friction hitch at a fraction of its former cost.
| Manufacturer | : | Rock Exotica |
| Made in | : | USA |
| Min Rope Size | : | 7/16” (11mm) |
| Max Rope Size | : | 1/2” (13mm) |
| Weighs | : | 10.9 oz (308 g) |
Manufacturer instructions for the Unicender.
Download Unicender Instructions PDF.
The American National Standards Institute (ANSI) has released the ANSI Z133 safety requirements which apply to arboriculutral operations.
The full ANSI Z133 safety requirements are available on our tree care standards page.