RNR Mechanical Advantage System 

A pre-rigged/pre-packaged 4:1 mechanical advantage lifting-lowering system that utilizes a double camming pulley. It is designed to lift and lower live loads and as such may be used for rescue or entry into confined spaces. All components used in the Mars System exceed the current NFPA, ANSI and OSHA requirements. Thanks to the 4:1 mechanical advantage, it is easy to lift a 2 person load and then some. Unlike similar products, comes rigged with 1/2" NFPA 2-person rated rope. The maximum safe working load at the load end of the system is 1,760 lbs.and 440 lbs. at the cam.

Each kit listed contains the following:

• R-N-R double camming pulley
• 1/2" NFPA 2 person rope (Length varies depending on kit)
• R-N-R double sheave pulley
• 2 carabiners
• Storage bag
• All items preassembled and packaged