|Name:||DMM Revolver v2|
|Nose:||notch & wire|
|Dimensions:||Length: 102.75 mm|
Width: 58 mm
Rope Bearing Depth: 11.0 mm
Gate Opening: 23.3 mm
|Strength Ratings:||27 kN | 7 kN | 9 kN|
|Other Markings:||Forged: DMM | (ratings) 0120(ce-logo) A|
|Collection Criteria:||★ Mechanically Interesting|
★ Historically Interesting or Iconic
|Summary:||the original integral pulley carabiner|
|Description & Commentary:|
The carabiner with an integral pulley which started it all - ushering in a new era of easy rescues and redirects.
The non-locking version was originally marketed to reduce rope drag when leading wandering rock climbing routes, but quickly became popular in other applications such as building (inefficient) z-drag rescue systems and rope redirects. The locking Revolver (available summer 2007) makes the design suitable for a greater range of life-support applications, but the small sheave is significantly less efficient than micro pulleys. Other manufacturers have since released similar designs with larger (and more efficient) sheaves such as the Petzl Rollaclip and Edelrid Axiom.
DMM first advertised the revolver on their website in late 2004, and a brochure on the DMM website in 2005 showed images of an early version of the revolver. If you have an example of this version, please contact me.
This older image had been replaced by the time the Winter 2006-2007 catalog was released.
|Technical Notice:||Technical Notice|