Providing the toughest and safest gear since 1979

Checkmate FABX2 OS Offshore Fall Arrest Block - 5mm Rope (18m Max)


Rope Material

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Checkmate Xcalibre FABX2 OS is designed to be used in harsh environments where it may be permanently installed. It is comprised entirely of materials with offshore corrosion protection. Can form part of a full safe transfer system including a ladder davit and a permanent tag line.


  • BRAKE PAWLS & PLATE - Manufactured from aluminium alloy T6 and hard anodised, this plate retains the hardened stainless pawls and spindles.
  • HOUSINGS - The clear housing allows visual inspection of the enclosed mechanical assembly without the need for removal of the block from its housing.
  • SEALED BRAKE MODULE - The brake module is a stainless/alloy unit which can be easily replaced after a fall, the “O” rings provide a seal from dust and water ingress.
  • LOAD BEARING CHASSIS - The internal stainless steel chassis provides a structural metallic core beneath the external protective housing.
  • THERMALLY INSULATED PROTECTIVE HOOD - The optional hood protects the exterior of the block and regulates extreme changes in temperature reducing condensation build-up, and protection from birdlime.
  • STAINLESS STEEL LOAD INDICATING SWIVEL HOOK - Supplied with a marine-grade stainless steel load indicating swivel hook as standard, or a marine-grade stainless steel load indicating swivel eye (MoQ’s apply).
  • LADDER DAVIT - Optional made to order davit extends the block above the top rung.


  • Drum - Polyamide 6 glass filled
  • Chassis - Stainless steel electro polished
  • Pawls - Stainless steel, hardened
  • Pawl Plate - AI Alloy T6 hard anodised
  • Pawl Spindles & Spring - Stainless steel
  • Housing - PC/ABS
  • Ratchet - Al Alloy T6 hard anodise
  • Bearings - Polyamide with PTFE
  • Shaft - Al Alloy T6 hard anodised
  • Swivel Hook Or Eye - Stainless steel rated to 23kN
  • Anchorage Connection - Allows for direct connection to davit or use of a standard karabiner.
  • Fibre Rope - Made with Dyneema®; 5mm, min breaking load 27kN
  • Stainless Steel Wire Rope - 5mm dia 7 x 19 minimum breaking load 15kN
  • Capacity - Made with Dyneema®; 18 metres, 15 metres stainless steel
  • Maximum Arresting Force (6kN) - Rope made with Dyneema® = 3.5kN (nom)
  • Wire rope = 4.5kN (nom)
  • Total Arrest Distance - 2m maximum
  • User Weight - 136Kg maximum
    • EN 360
    • AS/NZS 1891.3.1997
    • ANSI Z359.14:2012 Class B
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