Ronstan RF25309 Series 20 Triple Lashing Pulley – 20mm Orbit Block

The Ronstan RF25309 Series 20 Orbit Block™ is a high-performance triple lashing pulley designed for compact and lightweight rigging solutions. Featuring three 20mm acetal sheaves with Ronstan’s 2-stage ball bearing system, it ensures smooth operation under both dynamic and static loads. With a maximum working load of 300kg and a breaking load of 800kg, this pulley is ideal for control lines, leech lines, cunninghams, cascading vangs, and kite bridles. Its toughened nylon cheeks and hollow hub allow for versatile lashing configurations, making it a reliable choice for demanding sailing applications.

Ronstan RF25309 Triple ball bearing lashing pulley 20mm features:
B.L. (kg)    800
M.W.L. (kg)    300
Max. Rope diameter (mm)    6
Weight (g)    21
Notes:    Both the MWL and BL are dependant on the strength of the line used to lash the block through the central hub.