Petzl CROLL S Chest Ascender, 8mm-11mm Rope

The Croll chest ascender is unmatched for efficiency on fixed lines. Compact and lightweight, (30% lighter than the origianl Croll) it does not interfere with progression. The stainless steel wear plate improves durability by reinforcing the rope friction zone. The cam is stainless steel also.

• Compact, lightweight chest rope clamp
• Used with the ASCENSION handled rope clamp for ascending a rope
• Toothed cam with self-cleaning slot optimizes performance under any conditions (e.g. rope that is icy, muddy, etc.). The stainless steel cam has better resistance to corrosion
• The rope channel is reinforced with stainless steel for greater durability
• Catch is opened by pinching for easy, simple manipulation
• Lower hole is angled to keep the device flat
• Upper hole for attaching a shoulder strap to keep the rope clamp in position

Specifications

Reference: B16BAA
Rope diameter: 8-11 mm

Certification(s): CE EN 567, CE EN 12 841 type B
Weight: 85 g

For technical notes click here.

There has been some controversy over information on an Italian website.   Here is Petzl’s offiicial response:.

Following the recent publication of 2013 CROLL tests on an Italian website (http://www.sns-cai.it/item/test-sul-crol-petzl-di-recente-produzione), Petzl would like to remind users of the following facts:

• The new 2013 CROLL complies with the requirements of the EN567 standard when used with authorized ropes types (8-11mm). The CROLL withstands 5 consecutive static pulls of 4kN. During these tests the clamp was never pulled out.
• We have tested the new 2013 CROLL with a large selection of ropes in slow pull static testing. The forces at which the sheath of the rope tore were: 5kN for the 8mm, 6-7 kN on the other diameters.
• During product development and production, we have conducted many dynamic tests (shock load with a  rigid mass near an anchor point and extreme destructive tests with a guided mass on worn out ropes of large diameter) — in these tests the clamp was never pulled out and the sheath of the rope was torn.
• In normal use, the CROLL should never encounter such high forces, but it is critical that this (and all Petzl PPE) be used in accordance with the technical notice : http://www.petzl.com/files/all/technical-notice/Sport/B16-CROLL.pdf
• Petzl will contact the authors of these tests as soon as possible to exchange information.