P404401 – Selden 45mm Automatic Ratchet Block.

Technical features of the Automatic Ratchet Block 45:

• 5mm Delrin ball bearings and 45mm aluminium sheave.
• The sheave automatically changes from free-turning ratchet when the load increases. The sailor decides when the automatic ratchet kicks in.
• The switch over point is set using an allen key to adjust a screw inside the sheave. Fast, simple & precise. Specification:
• Sheave Diameter: 45mm
• Safe Working Load: 150kg
• Breaking Load: 300kg
• Max line: 8mm
• Pin Diameter: 4mm
• Shackle Diameter: 4mm
• Weight: 64g