CMC & Harken Industrial Clutch Descender


The versatile CMC™ CLUTCH™ by Harken Industrial™ is a single wearable tool suited for efficient hauling, controlled lowering, smooth personal descent, easy ascending, and reliable progress capture.


1 in stock (can be backordered)

SKU: IN401 Categories: ,


The CMC™ CLUTCH™ by Harken Industrial™, not only replaces the hardware used in a traditional raise/lower system for arborist operations, it also serves as a personal descender with the most efficient ascending capability of any product in its class.

The CLUTCH is the result of the design and product engineering collaboration by two experts with a collective 90 year history in rope management under heavy loads; CMC, a company with roots in rescue and rope access, and Harken Industrial, a manufacturing company with roots in high-performance sailing.


  • EN 12841:2006/C
  • EN 341:2001/2A
  • EN 15151-1: 2012/8
  • ANSI/ASSE Z359.4-2013
  • NFPA 1983 (2017 ED)

Working Load

  • Rated load: 240kg
  • Maximun rated load 2-person


  • 840g


  • 112 x 204mm

Rope capacity

  • Low Stretch ropes with diameter minimum 10.5 mm to maximum 11 mm


Clutch Product Sheet:

Clutch User Manual:

Additional information

Weight 840 g


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