Triple block Control
cam cleatwith swivelwith cleat

triple block
triple block
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Number of sheaves
cam cleat
with swivel, with cleat, with shackle
Bearing type
ball bearing
Maximum line diameter
max. rope ø 10 mm, max. rope ø 8 mm
Application domain
for sailboats, dinghy
spinnaker, mainsail
stainless steel
Working load

500 kg, 720 kg (1,102.3 lb)

Breaking load

1,000 kg (2,204.6 lb)


Ideal for use with hand-held loads, Lewmar’s Control Blocks feature lightweight, performance load-bearing capacity. MRT (Metal Replacement Technology) and a stainless steel central race and balls provide a weight advantage, while Long Fibre Technology offers exceptional strength and durability. The open design allows sand and salt to be flushed out easily, keeping maintenance simple. Features Lightweight Very High Strength Impact Resistant Reduced Friction Easy Maintenance Optimised for hand control Applications Ball bearing blocks are typically used for medium and dynamic loads in: Control line applications Mainsail sheets for dinghies and keelboats Spinnaker sheets, barber haulers Genoa sheets Dinghy applications

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.