The PETZL Croll Chest Ascender is a compact and efficient rope clamp designed for rope ascents in caving, rope access, and rescue work. It provides smooth upward glide, secure hold, and easy handling, even in muddy or icy conditions.

Product Specification

• Model Name: Croll
• Model Number: B16BAA
• Material: Aluminum body, stainless steel cam
• Rope Compatibility: 8 to 11 mm diameter
• Certification: CE EN 567, CE EN 12841 type B, UIAA
• Color: Yellow
• Intended Use: Rope ascents in caving, rescue, and work at height

Key Features

Compact and Lightweight Design: Low-profile shape fits close to the body for minimal bulk, making it ideal for confined or narrow spaces like caves.
High-Efficiency Cam Mechanism: Stainless steel cam offers excellent grip on dirty, wet, or icy ropes while preventing wear and rope damage.
Easy Rope Integration: Angled attachment hole keeps the device aligned with the body for smoother rope glide and efficient upward movement.
Durable Construction: Aluminum body and reinforced cam zone ensure long-lasting use under demanding vertical conditions.
Optimized for Chest Harnesses: Works seamlessly with PETZL harnesses like the AVAO or SEQUOIA, creating an efficient rope ascent system.

How it works

The PETZL Croll is worn on a chest harness and clipped to a sit harness, forming part of an efficient rope climbing system. As you ascend, the cam automatically grips the rope, allowing upward motion while preventing downward slippage. The angled lower hole keeps the device aligned with the user’s body, reducing friction and enhancing rope glide. Its stainless steel cam performs reliably in challenging environments like wet or muddy conditions, making it essential gear for vertical mobility in caving, rope access, or rescue.

FAQs

What type of rope is compatible with the Croll ascender?

It is compatible with single ropes between 8 and 11 mm in diameter.

Can the PETZL Croll be used for hauling or belaying?

No, it is designed strictly for rope ascension, not for hauling or dynamic belaying.

Is the Croll compatible with any harness?

Yes, but it integrates best with PETZL harnesses that have a chest attachment point, like the AVAO or SEQUOIA.

How do I maintain or clean the ascender after use in mud or water?

Rinse with fresh water and allow to air dry. Lubricate the cam pivot occasionally with a dry lubricant to maintain performance.