Allen Brothers 20mm Tie On Double Dynamic Block

Allen Brothers 20mm Tie On Double Dynamic Block

20mm Double Dynamic Tii-On Block.

Our Tii-On blocks feature a stainless-steel loop at the head of the block. This gives our Tii-On range maximum strength and reliability with minimal cheek separation when tied on and loaded up with a soft shackle. The stainless-steel head loop also ensures the block stays in the right orientation when being used.

Available with or without a Tii-Shackle (soft shackle).

Fitting Instructions:

• Tii-On blocks rely on the correct attachment method to give them maximum strength.
• When attaching a Tii-on block you must feed the rope around the central axle and through the head of the block.
• When possible, Tii-on blocks should be attached with a crossed/ through threaded line. (see pictures for example).
• This is very important, as it keeps the line load pulling the side cheeks together. Only use a non-crossed Tii-Shackle on low-load applications.

Becket:

The large central rivet not only reduces the overall weight but also offers a rope-friendly attachment, perfect as a tie-off point when being used in a cascade system.

Bearings:

Dynamic Blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides a superior load-carrying ability and longevity when compared to other bearing systems which run on a plastic rail.

Technical Description