Harken CMC Clutch Descender

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

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Description

Harken CMC Clutch Descender

Introducing the Harken Clutch, designed to replace the hardware used in traditional raise/lower systems for rigged operations. Also, it serves as a personal descender with the most efficient ascending capability of any product in its class.

Additionally, 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. Of course, we’re referring to both CMC, a company with roots in rescue and rope access, and Harken Safety & Rescue, a manufacturing company with roots in high-performance sailing.

Key Features

  • The CLUTCH combines the attributes of more expensive multipurpose devices with those of less sophisticated wearable personal descenders. As a result, rescue teams can carry less equipment while assuring they’re prepared for even the most technical rescues.
  • The mechanical geometry inside CLUTCH and its ergonomic handle, combine for better control across the load range in descent.
  • Moreover, the CLUTCH features a faceted ratcheting sheave of stainless steel. As a consequence, this provides secure rope holding and audible progress capture. Likewise, It proves to be uncommonly efficient on ascent or haul.
  • Designed for efficient operation, ease of use and optimal control. Its innovative double-latched side plate is independent of the device‘s attachment point and resists inadvertent opening. Rescuers and access professionals can change rope without disconnecting.
  • 10.5-11mm rope diameter compatible device certified to NFPA 1983 (G-Rated), ANSI Z359.4 and EN 12841/C, 341/2A, and 15151/8 (up to 200m/240kg).
  • Opening side plate is secured with a patented, two-step safety actuation. The CLUTCH has a force-limiting sheave for overload protection. An Anti-panic function automatically locks the device during descent if the handle is pulled too far.

Specifications (11mm Version)

Width (mm) 112 mm
Width (in) 4 13/32 in
Height (mm) 204 mm
Height (in) 8 1/32 in
Weight (kg) 0.84 kg
Weight (lb) 1.85 lb
Minimum line Ø (mm) 10.5 mm
Minimum line Ø (in) 13/32 in
Maximum line Ø (mm) 11 mm
Maximum line Ø (in) 7/16 in
Maximum rated load 2-person Refer to manual for specific load rating per standard

Specification (13mm version)

Width (mm) 112 mm
Width (in) 4 13/32 in
Height (mm) 208 mm
Height (in) 8 1/32 in
Weight (kg) 0.82 kg
Weight (lb) 1.80 lb
Minimum line Ø (mm) 12.5 mm
Minimum line Ø (in) 31/64 in
Maximum line Ø (mm) 13 mm
Maximum line Ø (in) 33/64 in
Maximum rated load 2-person Refer to manual for specific load rating per standard

 

Additional information

Brand

Diameter

11mm, 13mm