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Arbsession

    CMI 1/2" Mini Aluminum Arborist Rigging Block

    $139.95
    In stock

    Introducing CMI's newest mini arborist block, the RP162. Weighing in at only 1 pound, the RP162 delivers an impressive MBS of 21,900 lbs. It has a 1/2" rope capacity and is currently the smallest and strongest block of its kind on the market. A screw in top knob ensures a positive lock. SS axles, aluminum sideplates and wheels round out the package.

     

    Updated model now available! 

    MPN:RP162
    Brand:CMI

    Details

    MBS: 21,900 lbs

    SWL: 4,380 lbs

    Sheave Diameter: 1.260”

    Max Rope Diameter: 1/2”

    Weight: 16 oz

    Body material: High Strength Aluminum

    Sheave Mechanics: Oilite Bronze Bushing

    Sheave Material: Aluminum Alloy

    Width: 2.250”

    Height: 4.125”

    Depth: 1.765” (sideplate to sideplate)

    More Information

    Manufacturer:CMI
    HS Code::0000.00.00.00

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    Customer Reviews
    4.4 out of 5 (10 reviews)

    Robert • June 2, 2026

    Good things come in small packages

    I absolutely love this rigging block. Its virtually unnoticeable when carrying it up a tree. Very convenient when setting up rigging operations in less than ideal work positioning situations. With a weight limit of 21,900 lbs you cant go wrong.

    Jimmy • January 7, 2026

    Amazing pulley

    This mini block by cmi has been the work horse, of my light to medium rigging, for months now. It's compact size and screw lock swing plate make it great to apply in any situation.

    John • December 27, 2025

    Needs smoother bearing

    I have used 2 of these. They both had similar acting bearings which are not super smooth or efficient. I still use them without failure. I like the screw lock as opposed to the push/turn for setting remotely.

    Roger • December 23, 2025

    Long lasting and light

    I have two of these CMI blocks (one is the special edition colors) and use them for span rigging and basic rigging. They are light and with the xchain sling super fast.

    Trevor • November 4, 2025

    Compact and Capable

    The is the first block I've used, having only used rigging rings prior to now. Definitely an upgrade! It's nice having the lower friction and smaller footprint while still having a huge rating.

    Tyler • January 12, 2025

    STRONG

    Best strength out there for the size. Pair it with a 3/8 HMPE loopie!

    parker • November 8, 2023

    Great for a while

    Last block I had from them was perfect for 3-4 months of very light use, it cracked and fell apart while I was in the tree. They replaced it for free, now this one won’t unscrew. The CMI 1/2" Mini Aluminum Arborist Rigging Block has never been abused, get stored in a box when done. All I ever used it for was rigging pine limbs and the occasional top. Won’t be buying it again

    Brandon • July 29, 2023

    Great Product

    This block has become a very futile tool for my day to day use. Rated for a ridiculous amount of weight at 20000lbs for this tiny little pulley, I seem to pull the CMI Mini Block out anytime I don't want to carry the giant blocks up the tree just to rig out a top! Great Product and a Great Company! Highly Recommend!

    Andrew • August 19, 2022

    Beast

    The CMI mini rigging block weighs just 1 lbs. Paired with a pocketSLING perfect combo

    Michael • October 13, 2021

    For its size

    This thing gets it done. Small and compact. I loved this CMI Mini rigging block so much I bought two of them!

    About Arbsession

    We specialize in professional arborist supplies and tree climbing gear. Our mission is to provide the highest quality equipment for tree care professionals.

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