Product Range
50mm Dynamic Blocks
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.
Filters:
Block Configuration
- Tii-On
- Hook
- Swivel
- Becket
- Cheek
Sheave Type
- Single
- Triple
- Double
- Quad
- Quint
- Clear All
| SKU | Title | breaking load kg | length mm | maximum line diameter mm | maximum working load kg | shackle pin mm | Weight g | Price | |
|---|---|---|---|---|---|---|---|---|---|
 |
A2050 | 50mm Single | 900 | 95 | 10 | 300 | 4 | 73 | £48.97 |
 |
A2050C | Single Cheek Block | 900 | 96 | 10 | 300 | - | 80 | £50.89 |
 |
A2050Tii- | Single Tii-On | 900 | 72 | 10 | 450 | - | 61 | £48.97 |
 |
A2052 | 50mm Double | 950 | 100 | 10 | 450 | 4 | 148 | £99.95 |
 |
A2053 | Double With Becket | 950 | 136 | 10 | 450 | 4 | 160 | £103.88 |
 |
A2054 | 50mm Triple | 950 | 100 | 10 | 470 | 4 | 190 | £141.50 |
 |
A2054HK | Triple Block w/Hook | 950 | 140 | 10 | 470 | 4 | 227 | £156.32 |
 |
A2055 | Triple With Becket | 950 | 136 | 10 | 470 | 4 | 223 | £145.39 |
 |
A2056 | 50mm Quad | 950 | 100 | 10 | 470 | 5 | 269 | £185.72 |
 |
A2057 | Quad With Becket | 950 | 136 | 10 | 470 | 5 | 274 | £196.66 |
 |
A2059 | 50mm Quint Block | 950 | 100 | 10 | 470 | 5 | 323 | £217.88 |
|
A2156 | Cheek Adaptor For 50mm Block. | - | 95 | - | - | - | - | £6.02 |