CMI Steel Rigging Block - 3/4"

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BREAKING STRENGTH111.2 kn (25,000 lb)

This arborist block from CMI is a simple, robust rigging block for tree removals. The steel arborist block is very basic in design so it can be offered at a very affordable price. The block has a respectable minimum breaking strength (MBS) of 25,000 lb. The upper sheave and screw are retained when the side-plates are opened to install a rigging sling, which eliminates the possibility of a dropped sheave or screw. The block accepts rigging ropes of up to 3/4" diameter, and tree rigging slings up to 3/4" .

There are other arborist blocks with more advanced features or more polished design, but the basic CMI 3/4" steel arborist block is a great value for the money.

Note: With this style of block, care must be taken that the relatively sharp side plates do not contact the rope.

  • Features & Benefits:
  • Affordable
  • Captive upper sheave
  • Durable


  • Manufacturer: CMI
  • Maximum rope diameter: 16mm (3/4")
  • Sheave diameter: 69.85mm (2.75")
  • Tensile strength: 111.2 kN (25,000 lb)
  • Material: zinc-plated steel
  • Dimensions: 6.5 x 4"
  • Weight: 3.65 lb
  • Made in the USA
  • (more...)

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