RF46100 - Ronstan Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head

• Up to 14:1 holding power - highest available!
  
• Smooth easing of sheets
  
• Fully Automatic load sensing ratchet engagemen
  
• Swivel shackle head for unlmited block rotation
  
• Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points

• Dinghy mainsheet systems
  
• Mainsheet fine tune systems on sportsboats & small keel boats
  
• Mainsheet systems on sportsboats using RF7 mainsheet swivel cleat unit
  
• Spinnaker and job sheets on dinghies - especially modern asymmetric classes
  
• Control line applications on larger yachts

• Sheave: Hard anodised Aluminium
  
• Ball Bearings: High compression strength carbon black Acetal
  
• Frame/Cheeks: Toughened, glass fiber reinforced Nylon
  
• Rope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®

The Ronstan Series 40 Ratchet Orbit Block� (part number RF46100) is a single, automatic ratchet block designed for marine applications requiring efficient line management. This component is suitable for IT hardware resellers supporting clients in the marine industry, particularly those involved with dinghy mainsheet systems, spinnaker and jib sheets on dinghies, and control line applications on larger yachts. Its automatic load-sensing ratchet mechanism engages under load and disengages when released, facilitating smooth easing of sheets for maneuvers like gybing asymmetric spinnakers. The block features a 40mm hard anodized aluminum sheave with a Generation 2 cross-hole geometry, providing up to 14:1 holding power for ropes up to 9mm in diameter. Attachment is via a Dyneema� Link, compatible with Dyneema�/Spectra� strops, webbing, and carbon connection points, offering a secure and flexible connection solution. The swivel shackle head allows for unlimited block rotation, enhancing versatility in various rigging setups.