CMC CLUTCH™ by Harken Industrial

One Wearable Tool for Hauling, Lowering, and Personal Descent

The CMC CLUTCH™ is a multi-purpose rescue device designed for advanced rigging, rope access, and first-responder operations. Developed by the combined expertise of CMC and Harken Industrial, this device replaces multiple pieces of hardware with one high-efficiency tool built for critical missions.

Engineered for Rescue Efficiency

• Compatible with 10.5–11 mm rope (11 mm model) or 12.5–13 mm rope (13 mm model)
• Dimensions: 208 × 112 × 47 mm (8.2 × 4.4 × 1.9 in)
• Weight: approx. 816–836 g (1.80–1.84 lb) depending on model
• Maximum load rating: up to 272 kg (600 lb)
• Minimum Breaking Strength (MBS): Pulley 40 kN (≈ 8,992 lbf); Becket 22 kN (≈ 4,946 lbf)
• Certifications: NFPA 1983 (General Use), ANSI/ASSE Z359.4, EN 12841:2006/C, EN 341:2011/2A, EN 15151-1:2012/8

Why It Belongs in Your Rescue Kit

• Versatility in one device: Functions as a hauling pulley, descent control, personal descender, belay device, and support for twin-tension rope systems — reducing the number of devices needed in the field.
• High efficiency: Delivers significantly greater hauling and descending efficiency compared to traditional cam-style devices, meaning smoother transitions and faster rigging.
• Rapid role change: Seamlessly switch between haul mode, lowering, ascent, and descent without removing or swapping components — saving time and minimizing confusion.
• Rope-system optimization: Ideal for twin-tension systems, allowing safe, efficient management of both main and belay lines.
• Durable, field-tested construction: Machined aluminum body, stainless steel wear guards, rotating sheave, anti-panic brake, and overload protection — all built for demanding rescue environments.

Typical Applications for First Responders & Technical Teams

• High-angle rope rescue operations on towers, cliffs, or structures
• Confined-space and structural-collapse rescues where versatility and compactness are essential
• Rope-access and tactical team setups requiring quick deployment and reliable load management
• Training programs seeking to streamline equipment and standardize team performance

Specifications Summary

• Manufacturer: CMC & Harken Industrial
• Model Options: 11 mm and 13 mm rope versions
• Weight: 1.80–1.84 lb
• Dimensions: 8.2 × 4.4 × 1.9 in
• Maximum Rated Load: 600 lb
• MBS Ratings: Pulley 40 kN; Becket 22 kN
• Certifications: NFPA 1983 (General Use), ANSI/ASSE Z359.4, EN 12841, EN 341, EN 15151

The Bottom Line

For agencies and departments that demand versatility, durability, and efficiency, the CMC CLUTCH™ by Harken Industrial provides a single solution for multiple rope operations. Whether hauling, lowering, or descending, this device adapts to your needs — simplifying gear load, improving safety, and enhancing performance on the job.

Efficient. Versatile. Rescue-Ready.