Allen 50mm dynamic blocks offer low friction performance in a lightweight body. Built to suit the more demanding applications on dinghies and sports catamarans. Also, a great choice for fast running control lines and sheets on keelboats. Available with a wide range of accessories and features.
Swivel Lock - Single variations feature a built in swivel lock switch, located at the head of the block. Muti sheave options feature a removable swivel lock moulding.
Dynamic Bearings - Twin rows of stainless steel ball bearings running on a stainless steel rail provide superior rolling speeds and durability. Great for fast running lines.
Becket – The hole through the middle of the block can be used as a tying off point (becket).
Maximum Working Load – If exceeded the block may not perform as designed.
Breaking Load – The load at which a major block failure is likely to occur.
| SKU | Title | Maximum Line Diameter mm | shackle pin mm | breaking load kg | maximum working load kg | Length mm | Weight g | Price | |
|---|---|---|---|---|---|---|---|---|---|
 | A2050Tii- | Single Tii-On | 10 | - | 900 | 450 | 72 | 61 | £56.09 |
 | A2054HK | Triple Block with Hook | 10 | - | 950 | 470 | 140 | 227 | £179.05 |
 | A2050 | 50mm Single | 10 | 4 | 900 | 300 | 95 | 73 | £56.09 |
 | A2052 | 50mm Double | 10 | 5 | 950 | 450 | 100 | 148 | £115.46 |
 | A2053 | Double With Becket | 10 | 5 | 950 | 450 | 136 | 160 | £118.99 |
 | A2054 | 50mm Triple | 10 | 5 | 950 | 470 | 100 | 190 | £162.10 |
 | A2055 | Triple With Becket | 10 | 5 | 950 | 470 | 136 | 223 | £166.54 |
 | A2056 | 50mm Quad | 10 | 5 | 950 | 470 | 100 | 269 | £212.74 |
 | A2057 | Quad With Becket | 10 | 5 | 950 | 470 | 136 | 274 | £225.26 |
 | A2059 | 50mm Quint Block | 10 | 5 | 950 | 470 | 100 | 323 | £249.59 |
 | A2050C | Single Cheek Block | 10 | - | 900 | 300 | £58.28 | ||
 | A2156 | Cheek Adaptor For 50mm Block. | - | - | - | - | £6.65 |
