The Multi-Purpose Device (MPD) is an innovative pulley, rescue belay, and descent control device that allows rescuers to transition from lowering to raising operations without changing hardware. Developed through more than nine years of research and engineering, the patented MPD combines multiple essential rescue functions into a single compact device, simplifying rigging, reducing equipment requirements, and increasing operational efficiency during technical rescue incidents.
Featuring a high-efficiency pulley with an integral rope-locking mechanism, the MPD functions as a lowering device, rescue belay, descent control device, and ratcheting pulley for haul systems. This versatile design allows main line and belay systems to be mirrored or configured for twin-tensioned operations while reducing rigging complexity and training requirements. The MPD is especially valuable for confined space rescue operations, where it can quickly convert into a retrieval system without reconfiguring hardware.
UL Classified as a pulley, descent control device, and belay device, the MPD has become a trusted tool for rope rescue professionals worldwide.
Features
• Transitions from lowering to raising without changing hardware
• High-efficiency pulley with integrated rope-locking ratchet mechanism
• Functions as a pulley, rescue belay device, and descent control device
• Variable-friction descent control for rescue systems and rappelling
• Built-in becket allows cleaner and more efficient pulley system rigging
• Supports mirrored main line and belay line configurations
• Compatible with twin-tensioned rescue systems
• Functions as a lowering brake and ratcheting pulley for hauling operations
• Rapid conversion to retrieval systems for confined space rescue
• Reduces equipment weight and component count
• Simplifies training and on-scene rigging procedures
• Designed to reduce operational complexity and risk
• Maximum working load of 272 kg (600 lb)
• Patented design (U.S. Patent No. 7,658,264)
Specifications
• Manufacturer: CMC
• Product Type: Pulley / Rescue Belay / Descent Control Device
• Maximum Working Load: 272 kg (600 lb)
• 3 Sigma Minimum Breaking Strength (Pulley): 46 kN (10,341 lbf)
• Weight: 1.2 kg (2.6 lb)
13 mm Model
• Item Number: 333000
• Rope Compatibility: 13 mm (1/2 in) rope
• Color: Red
• NFPA Pulley Rating: General Use
• NFPA Descent Control / Belay Rating: General Use
• 3 Sigma MBS Pulley: 46 kN (10,341 lbf)
11 mm Model
• Item Number: 333010
• Rope Compatibility: 11 mm (7/16 in) rope
• Color: Slate Blue
• NFPA Pulley Rating: General Use
• NFPA Descent Control / Belay Rating: Technical Use
• 3 Sigma MBS Pulley: 46 kN (10,341 lbf)
Important Notes
• The 13 mm model is designed for use with 12.5–13 mm rope.
• The 11 mm model is specifically designed and tested for 11 mm rope.
• Equipment storage bag is sold separately and is no longer included with the MPD.
