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Petzl Twin Release


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Petzl Twin Release

Releasable double progress capture pulley for haul systems

The Petzl Twin Release progress capture pulley is designed to set up 4:1 haul systems for work in confined spaces or for technical rescue. Releasing the cam is possible with the ergonomic handle. The brake, which is integrated into the moving side plate and the main faceted sheave with single-direction rotation, offer additional braking and better control when lowering heavy loads. The two sheaves provide excellent hauling efficiency. The swivel facilitates operations, allowing the pulley to be oriented under load and direct connection of carabiners, ropes or slings.


  • Ergonomic handle for easy release of the cam.
  • Brake integrated into main moving side plate allowing comfortable and precise control when lowering heavy loads.
  • Cam can be locked in the open position for easy feed slack.
  • Toothless cam helps preserve the rope and allows for easy transition from lowering to hauling and vice-versa.
  • Parallel-mounted sheaves and auxiliary attachment point for setting up various types of complex haul systems.

Easy to use

  • Triple-action opening of the moving side plates is quick and easy, even with gloves.
  • Red indicators provide a visual warning when the side plates are unlocked.
  • The rope can be installed with the device connected to the anchor.
  • Hole in the handle for installation of a remote-control cord

Facilitates operations, thanks to the swivel

  • Allows pulley to be oriented under load.
  • Accommodates up to three carabiners.





Pulley Type

Double / Twin

Pulleys Cheek

Swing Cheek

Pulley Rating (Breaking Load) kN


Pulley Efficiency

Bearing / High Efficiency

Sheave Diameter (mm)


Pulley Efficiency


Minimum Rope Diameter (mm)


Maximum Rope Diameter (mm)


Max Breaking Strength (kN)


Working Load (progress capture)



  • Model: Petzl Twin Release Pulley
  • Manufactured by: Petzl

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