Cleveco
Cleveco Double Block Swivel Top – 60mm Marine Pulley
The Cleveco Double Block Swivel Top (60mm) is a heavy-duty marine pulley designed for high-load sailing and rigging systems. Featuring twin 60mm Delrin sheaves, this block delivers smooth, low-friction performance and increased mechanical advantage—making it ideal for mainsheet systems, vang setups, and multi-line control applications.
Manufactured in New Zealand, this Cleveco block is built for durability with self-lubricating Delrin sheaves that use water as a natural lubricant, reducing friction and rope wear even under heavy loads. The sheaves are housed within 14-gauge stainless steel straps, providing excellent strength and corrosion resistance in harsh marine environments.
The swivel top head allows the block to rotate freely under load, ensuring proper alignment and reducing line twist during operation. This makes it especially effective in dynamic sailing conditions where loads and angles frequently change.
Key Features
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Double 60mm sheave block for increased mechanical advantage
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Swivel top head for flexible alignment and reduced rope twist
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Twin Delrin sheaves for smooth, low-friction performance
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Self-lubricating design using water as a natural lubricant
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Heavy-duty 14-gauge stainless steel straps for durability
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High load capacity for demanding sailing systems
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Ideal for mainsheet, vang, and control line setups
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Reliable New Zealand-made marine hardware
Technical Specifications
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Sheave Size: 60 x 19 mm (double sheave)
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Material (Sheave): Delrin (self-lubricating polymer)
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Frame: Stainless steel straps (14 gauge)
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Top Fitting: Swivel head
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Breaking Strength: Approx. 2177 kg
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Weight: Approx. 425 g
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Rope Compatibility: Approx. 8–16 mm rope
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Type: Double block pulley with swivel top
Ideal For
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Mainsheet systems and purchase setups
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Boom vang and control line systems
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Dinghies, keelboats, and trailer yachts
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High-load sailing and rigging applications
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Situations requiring mechanical advantage and swivel alignment
