CMI 4:1 Mechanical Advantage 4" Pulley Kit

The CMI MA KIT 4:1 Mechanical Advantage System (4" Pulleys) is a high-capacity hauling setup designed for heavy-duty lifting, rescue, and rigging applications. With a 4:1 mechanical advantage and large 4" sheaves, this system delivers maximum efficiency and reduced friction—making it ideal for demanding field operations where performance and reliability are critical.

This kit includes two of CMI’s RP124 4" aluminum pulleys and three BINER6 steel locking carabiners. Built in the USA with professional-grade materials, this pre-configured system is ready for deployment—just add rope and go.

Features & Benefits:

• 4:1 Mechanical Advantage – Quadruples your pulling power for efficient hauling and tensioning of heavy loads.
• Includes (2) CMI RP124 Pulleys – Large 4" aluminum sheaves offer low-friction performance and smooth rope travel.
• Includes (3) BINER6 Steel Locking Carabiners – High-strength connectors for secure, reliable anchoring and load control.
• Ideal for rescue and industrial rigging – Provides greater efficiency over smaller pulley systems.
• Made in the USA by CMI – Trusted by arborists, rope access techs, and emergency personnel nationwide.

Specifications:

• Pulleys: (2) RP124, 4" aluminum sheaves
• Carabiners: (3) BINER6 steel locking carabiners
• Mechanical Advantage: 4:1

Note: This kit includes pulleys and carabiners only. Rope is not included.

The CMI MA KIT 4:1 (4") is the go-to solution for professionals who need greater efficiency, higher load capacities, and rugged performance in a ready-to-deploy haul system.