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Harken T2 40mm Soft-Attach Ratchamatic

Harken T2 40mm Soft-Attach Ratchamatic

Standard 10:1 Holding Power

Patent Design

Soft Attachment:
Dyneema core, polyester covered line
Line included
with instructions on forming a becket

Super lightweight, no hard shackle

Load sensitive ratchet mechanism

Select by Sheave diameter:
40mm or 57mm


More Information

Harken Ratchet Blocks help the crew to handle heavier loads, providing supreme handling for mainsheet and spinnaker systems on beachcats, dinghies and sportsboats.

Harken Sheaves:
Harken standard ratchamatic sheaves maintain a secure grip on the line by means of eight specially designed facets.
Facets are the angled concave shapes formed specifically to grip the line under load.
They act a bit like the pockets in a chain gypsy (although far less pronounced).
The faceted sheave allows a loaded sheet to be hand-held, yet still allow instant easing with control.
The crew can hand-hold main, jib, and spinnaker sheets with only a faction of the effort that a regular block requires.

Standard Holding Power - 10:1
Standard Holding Power sheaves are black anodised for identification:

Holding power varies according to sheave size and type.
40mm and 57 mm Ratchamatic blocks with eight-sided faceted sheaves can provide up to 10:1 holding power.

You can look at this in two different ways:

  • The crew can withstand 10 times more load than on a normal block without the sail winning :-)
  • The crew will only need 10% of the effort to withstand the same load on a normal block (10kg of force requires only 1kg holding power)

Harken Ratchamatic Block Design and Construction features:

  • Super lightweight parts
  • Composite fibre-reinforced sideplates
  • Hardcoat anodised aluminium sheave
  • Lightweight soft-attach method
  • Minimal moving parts in the ratcheting mechanism

Harken T2 Carbo Ratchamatic Plus Factors:

  • Lashing allows ratchet adjustment close to the deck
  • Splicing with a large diameter line uses the tail to fasten the block at the height needed for a fairlead
  • Pressure on the line engages the ratchet mechanism, which switches seamlessly from free running to ratchet mode
  • Unloaded main and jib sheets run out freely during mark roundings and asymmetrical spinnaker sheets become free to run instantly during gybes
  • T2 ratchamatic blocks are clearly labelled with high contrast directional markers for correct reeving and trimming direction
  • A becket can be formed by passing the line through the mouth of the block and making two becket loops, detailed instructions come with the block
Harken Block Holding Power Break Load Maximum Line Diameter Weight Harken
2159 40mm Carbo Ratchamatic - T2 Soft-attach 10:1 454kg 10mm 25g 2159
2160 57mm Carbo Ratchamatic - T2 Soft-attach 10:1 907kg 10mm 71g 2160
  • Block Size - 40 mm
  • Block Size - 57 mm