Markdown CMI RP131 Stainless Steel Arborist Rigging Block

Product Description

CMI RP131 3/4″ Arborist Pulley (Made in USA)

The CMI RP131 is a heavy-duty arborist pulley built for larger rigging systems and higher working loads. Featuring stainless steel sideplates and a large aluminum sheave running on an Oilite bronze bushing, it delivers smooth, controlled rope movement even under substantial loads.

• MBS: 40,000 lbs
• SWL: 8,000 lbs
• Sheave Diameter: 4″
• Max Rope Diameter: 3/4″
• Weight: 5 lb 10 oz
• Body Material: Stainless steel
• Sheave Material: Aluminum
• Sheave Mechanics: Oilite bronze bushing
• Dimensions (W x H x Depth): 5″ x 7″ x 1.693″ (sideplate to sideplate)

Well suited for large wood, high-load redirects, and primary lowering points where strength, durability, and smooth operation are critical to safe rigging.

Pro Tip:

The larger 4″ sheave helps reduce bend radius on 3/4″ rigging lines, extending rope life and improving efficiency during heavy lowering operations. Always base system planning on the 8,000 lb SWL.

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Specifications

MPN—–RP131
Size—–7" x 5"
Frame Size—–Medium
Rope Size—–3/4"
Sheave Size—–4"
Sheave Count—–Single
Type—–Arborist Blocks
Material—–Steel
Color—–Silver
Breaking Strength (lbs)—–40000
Swivel—–No
Approx. Weight (lbs)—–5.6
Country of Origin—–USA