RONSTAN Series 30 Orbit Triple Block with Cam

Lightweight and strong blocks for modern rigging systems.

The 30mm triple block with cam cleat features thinner cheeks between the sheaves reduces weight while separating lines and is ideal for mainsheets, boom vangs, backstays, halyard tuning systems, Cunninghams and other systems that are not cleated remotely.

• Excellent strength to weight ratio
• Improved two-stage bearing system for efficiency for static and dynamic loads
  • Acetal ball bearings migrate to load areas of the sheave for light to moderate loads
  • PTFE impregnated nylon bearing with carbon fiber reinforcement supports higher static loads
• Hollow bearing at center of sheave serves as a becket to reduce weight and offer additional versatility
• UV resistant Aceal high compression sheave that is compatible with conventional doublebraid and high-tech 12 stand lines
• Can be converted to soft attachment using Dyneema link (Ronstan Part no. RF9003-70)
• Ideal for
  • Backstay systems
  • Boom vangs
  • Halyard tuning systems
  • Mainsheets
  • Cunninghams
  • General dinghy control lines