Ronstan RF56330B Series 55 RT Orbit Block - Triple Becket Cleat Swivel

Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself with the Ronstan RF56330B Series 55 RT Orbit Block - Triple Becket Cleat Swivel. This automatic ratchet block features a ratchet mechanism that engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers.

Awesome ratchet block holding power
Quite simply, Ronstan Ratchet Orbit Blocks have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 patented sheave cross-hole geometry. Its holding power is up to 21:1. The unique sheave design has 12 gripping faces which directly resist loaded line movement. The Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.

Simple and secure attachment
The Dyneema Link is easily fitted and is retained securely by a moulded retainer clip. The flexible link can be left with one end attached to the block when fitting - no more lost shackle pins. The system is compatible with Dyneema/Spectra strops, webbing and caron connection points - much more so than steel loop tops or shackles. The sheet runs out smoothly and freely as soon as the ratchet mechanism disengages.

Ronstan RF56330B Series 55 RT Orbit Block - Triple Becket Cleat Swivel Features:

• Up to 20:1 holding power
  
• Smooth easing of sheets
  
• High performance cleating
  
• Easily fitted and securely retained Dyneema Link head
  
• Automatic and manual ratchet block
  
• Applications:
  
  • Mainsheet systems and spinnaker sheets on dinghies, catamarans, sportsboats and small keel boats to 9m (30ft)
    
  • RF55410 when paired with a RF56330B and a RF35101 lashed to the becket produces a powerful 8:1 mainsheet system for use on catamarans to 5.5m (18ft). This can be increased to 9:1 by replacing the RF35101 with a RF35202
    
  • Halyard, vang and backstay applications on boats to 8m (26ft)
    
  • Control line applications on larger yachts
    

Ronstan RF56330B Series 55 RT Orbit Block - Triple Becket Cleat Swivel Specifications:

• Sheave diameter: 55 mm
  
• Max. Rope diameter: 10 mm
  
• M.W.L.: 750 kg
  
• B. L.: 1500 kg
  
• Weight: 392 g
  
• Materials:
  
  • Sheave: Hard anodised Aluminium
    
  • Ball Bearings: High compression strength carbon black Aceetal
    
  • Frame/Cheeks: Toughened, glass fibre reinforced Nylon
    
  • Rope Link: UV stabilised, multi-strand impregnated SK75 Dyneema