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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. 

Filters:

Accessories

  • Becket
  • Cheek
  • Hook
  • Swivel
  • Tii-On

Block Configuration

  • Double
  • Quad
  • Quint
  • Single
  • Triple
  • Clear All
SKU Title Maximum Line Diameter mmshackle pin mmbreaking load kgmaximum working load kg Length mm Weight g Price
A2050Tii-Single Tii-On10-9004507261£56.09
A2054HKTriple Block with Hook10-950470140227£179.05
A205050mm Single1049003009573£56.09
A205250mm Double105950450100148£115.46
A2053Double With Becket105950450136160£118.99
A205450mm Triple105950470100190£162.10
A2055Triple With Becket105950470136223£166.54
A205650mm Quad105950470100269£212.74
A2057Quad With Becket105950470136274£225.26
A205950mm Quint Block105950470100323£249.59
A2050CSingle Cheek Block10-900300£58.28
A2156Cheek Adaptor For 50mm Block.----£6.65