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CMI RP 137D Double Rope Pulley Same as the RP137, in a double configuration. Purple Anodized Aluminum sideplates, two 1 1/4" Aluminum sheaves, Bushing, and Aluminum axle. | MBS | Rope Capacity | Size | Weight | Efficiency | | 7000lbs | 1/2" | 3.75x2.75in | 0.3lb | n/r |
With the movement back to prussik-based safeties gaining momentum, the need for prussik minding pulleys that integrate directly into mechanical advantage systems is growing. To answer that need, we've developed eight prussik minding pulleys. A larger 4" sheave with 5/8" rope capacity makes the RP138 the largest pulley of its kind; smaller compact packages make the RP137 and RP137D ideal for use in confined spaces or caves.
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