The design of our redesigned CSR (Confined Space Rescue) Pulley is stronger yet lighter and incorporates 7/16 in (11 mm) to 1/2 in (13 mm) life safety rope. Ideal for industrial applications as well as many rescue operations, the CSR uses our proprietary, patented locking system, which eliminates a toothed cam or Prusik so it can be easily and safely released while under load. (The absence of the toothed cam means that even if the system is fully collapsed and pulled tight, it can still be released easily.
Systems using a toothed cam must be raised even further before the cam can be released, which can be impossible if the system is fully collapsed without thinking about this problem ahead of time – causing potential problems with the load on the system becoming stuck.) An integral thrust-bearing swivel reduces torque by aligning the pulley with the load, thereby increasing efficiency and safety. Its larger size allows for the easy application of rescue-size carabiners.