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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. 

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SKU Title Maximum Line Diameter mmshackle pin mmbreaking load kgmaximum working load kg Length mm Weight g Price
A2050Tii-Single Tii-On10-9004507261£53.99
A2054HKTriple Block with Hook104950470140227£172.33
A205050mm Single1049003009573£53.99
A205250mm Double104950450100148£111.13
A2053Double With Becket104950450136160£114.53
A205450mm Triple104950470100190£156.01
A2055Triple With Becket104950470136223£160.28
A205650mm Quad105950470100269£204.76
A2057Quad With Becket105950470136274£216.80
A205950mm Quint Block105950470100323£240.22
A2050CSingle Cheek Block10-900300£56.10
A2156Cheek Adaptor For 50mm Block.----£6.65