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| Left Side | Right Side | Side Plates Open for Rigging |
I acquired this Rock-N-Rescue from eBay seller justkillingtime53 in 2024.
My Rock-N-Rescue is 264 mm. tall, 103 mm. wide, 63 mm. thick, and weighs 1051 g.
The Rock-N-Rescue is a rebranded CMI Uplift. My Rock-N-Rescue hauling pulley came with a standard double pulley. I've shown the double pulley in the pictures, but will not describe it further.
The Rock-N-Rescue is a double pulley with an eccentric cam that
prevents one strand of rope from entering the device. The central
frame is an anodized aluminum extrusion with a rectangular channel
for mounting the cam and a 17 mm. U-shaped channel for the rope.
The cam is a CMI cam that has been modified to use a hold-open
safety that is virtually identical to the one on the SRT
Rescuemates, and is riveted to the frame just like the SRT Rescuemates. It is a pity that
this wasn't bolted on so that the cam could be replaced when worn.
A 3 mm. cord is tied to the cam in the same manner as on the SRT Rescuemates, which allows the
cam to be opened remotely. On the back of the frame there is a
cord lock that is almost identical to the SRT
Rescuemates, including being mounted with an Allen-head cap
screw. There is a rope guiding post that is, once again, a copy
of the one on the SRT Rescuemates,
complete with the nonfunctional groove. There is a carabiner hole
at the bottom of the device.
The two anodized aluminum pulleys are 67 mm. in diameter, which is larger than those on the RSI Rescue Hauling Pulley or the SRT Rescuemates. This provides better clearance between the rope and the back of the cam channel than the other designs do. The pulleys can handle ropes up to 13 or 14 mm. without dragging, and up to 16 mm. with degraded performance. The pulley side plates are anodized different colors, so that one can tell the front and back sides of the device without looking at the cam area. The pulleys and side plates are bolted to the frame, apparently on a loose-fitting rod with threads at each end. The pulleys and side plates tend to flop around on the frame. The pulley bearings are rather good, and allow the pulleys to turn freely.
Each swinging side plate is printed with the ROck'N'REscue "This is RNR" logo, "EXCEEDS TESTS FOR NFPA 1983/2006 G," " 0221," "Made in USA," and an American FLag icon. THey are stamped "MBS 12,000lb." and "53.6 Kn."
No instructions came with the device. There are two obvious ways to rig the device for a 4:1 hauling system. In the first, the cam supports one half of the load while the hauling team resets for another pull. In the second, the cam supports one fourth of the load, but the frame pivots with each pull and the rope runs over a portion of the rope channel that should have been rounded, but wasn't. Thirty seconds with a rat-tail file will fix this oversight.
Overall, this is a well-made device designed for rescue applications.
Any mechanical advantage system has certain dangers, so it is
important that the team not overstress any components. When rigged
correctly, it is unlikely that this device will be the weakest
link.
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