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Constrictor® Rope Clutches

Unlike conventional clutches, the Constrictor® system does not crush the rope between two metal surfaces. Instead, the loaded rope is securely held in a textile sock, which is locked securely between a titanium ring and an anchor base. The line runs freely through the sock in one direction, but is gripped instantly within the sock when running out in the opposite direction. Pulling on an SK-75 Dyneema® lanyard retracts the sock and releases the line. Constrictor is stronger, with twice the holding power of conventional clutches; three times lighter, saving weight and increasing performance; with no line abrasion or rupture; can be released easily under load without the use of a winch; and can be remotely released by extending the Dyneema® lanyard. Winner of the 2011 DAME Award and 2012 Pittman Innovation Award.

Product Models
Description WM Model # MFG Part # Availability Price Quantity  
Constrictor 6 (1/4"); Line Diameter: 3/16"-1/4"; Anchor Base Dimensions: 1"W x 4 9/16"L x 4 1/2"H; Length of Sock: 17 11/16"; Breaking Load: 1,010 (3/16"); 2,600 (1/4"); Weight: 5.3oz. 14487383 CT306P001
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$157.95

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Constrictor 8 (5/16"); Line Diameter: 1/4"-5/16"; Anchor Base Dimensions: 1"W x 4 9/16"L x 4 1/2"H; Length of Sock: 19 11/16"; Breaking Load: 1,350 (1/4"); 4,050 (5/16"); Weight: 5.4oz. 14487391 CT308P001
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$157.95

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Constrictor 10 (3/8"); Line Diameter: 5/16"-3/8"; Anchor Base Dimensions: 1"W x 4 9/16"L x 4 1/2"H; Length of Sock: 19 11/16"; Breaking Load: 3,150 (5/16"); 4,720 (3/8"); Weight: 4.6oz. 14487409 CT310P001
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$157.95

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Constrictor 12 (1/2"); Line Diameter: 3/8"-1/2"; Anchor Base Dimensions: 1 3/8"W x 4 15/16"L x 5"H; Length of Sock: 25 5/8"; Breaking Load: 3,370 (3/8"); 7,870 (1/2"); Weight: 11.6oz. 14487417 CT312P001
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$186.95

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Constrictor 14 (9/16"); Line Diameter: 1/2"-9/16"; Anchor Base Dimensions: 1 3/8"W x 4 15/16"L x 5"H; Length of Sock: 25 5/8"; Breaking Load: 4,050 (1/2"); 9,780 (9/16"); Weight: 12oz. 14487425 CT314P001
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$186.95

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Unlike conventional clutches, the Constrictor® system does not crush the rope between two metal surfaces. Instead, the loaded rope is securely held in a textile sock, which is locked securely between a titanium ring and an anchor base. The line runs freely through the sock in one direction, but is gripped instantly within the sock when running out in the opposite direction. Pulling on an SK-75 Dyneema® lanyard retracts the sock and releases the line. Constrictor is stronger, with twice the holding power of conventional clutches; three times lighter, saving weight and increasing performance; with no line abrasion or rupture; can be released easily under load without the use of a winch; and can be remotely released by extending the Dyneema® lanyard. Winner of the 2011 DAME Award and 2012 Pittman Innovation Award.

Specs