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CMI ascenders have been there on first ascents, grueling expeditions, and daring rescues, always returning to climb another day. CMI Ascenders are chosen by the most demanding users.
- Bodies. Their ascender bodies are extruded from aircraft grade aluminum and stainless steel. The aluminum bodies are finished with a hard powder coat to permanently protect them from the elements. All of CMI ascenders easily accommodate 5/8" ropes. Numerous tie-in points accommodate the largest carabiners in use today.
- Springs. The 17-4PH stainless steel springs in CMI ascenders are tested to over a million cycles, simulating lifetimes of the most demanding use.
- Cams. Newly redesigned with a more aggressive grip and a thumb notch to simplify retraction. Cast from 4140 chrome-moly steel and finished with an exclusive non-metallic finish to to give the cams the same corrosion resistance as stainless steel. We guarantee their cams for life--if you can wear one out, we'll replace it--free!
- Handgrips. Molded plastic handgrips fit the contour of the ascender and feature an integrated safety that is easier to use and more comfortable on the hand than any other ascender on the market.
Check out our collection of quality made ascenders below!