Allen Brothers 20mm Single High Load Tii-On

Allen Brothers 20mm Single High Load Tii-On

20mm Single Tii-On High Load Block

The 20mm Single Tii-On High Load Block combines the strength and versatility of the Tii-On attachment system with the enhanced performance of a stainless-steel high load sheave. Designed for soft shackle attachment, the stainless-steel head loop provides maximum strength, reliability, and minimal cheek separation under load while maintaining correct block orientation.

Features:

• Single-sheave design for smooth and efficient line handling
• Stainless-steel head loop for secure soft shackle attachment
• Minimises cheek separation under load and maintains correct orientation
• High Load Stainless-Steel Sheave for faster rolling speeds, higher working loads, and reduced friction compared to standard acetal sheaves
• Suitable for use with both rope and wire
• Patented Dynamic Bearing System with twin rows of stainless-steel ball bearings running on a stainless-steel rail for superior load capacity and durability
• Integrated Becket via a large central rivet, providing a lightweight and rope-friendly attachment point for cascade systems
• Ideal for high-load applications requiring smooth, efficient line handling

For maximum strength, the attachment line must be fed around the central axle and through the head of the block. Where possible, use a crossed or through-threaded attachment method to keep the load pulling the side cheeks together. When using a Tii-Shackle, crossed attachments are recommended. Non-crossed attachments should only be used in low-load applications.

Technical Description