Description
Harken 40mm Carbo Air Block w/Cam-Matic Cleat | Boat Supply Store
Optimize halyard management and sheeting with this Harken 40mm Carbo Air pivoting lead block, engineered for lightweight strength and secure line retention. Its integrated aluminum Cam-Matic cleat handles lines up to 10mm (3/8 inch) with a robust 136 kg (300 lb) working load. Ideal for larger keelboats demanding precise halyard control or dinghy sailors seeking efficient boom-led sheeting, this block offers significant performance benefits.
Key Features
- Lightweight 40mm Carbo Air sheave minimizes system weight.
- Optimized Angle Pivoting lead ensures superior lineführung.
- Secure Hold Integrated Aluminum Cam-Matic® cleat for reliable line control.
- Versatile Cleating Reversible cam accommodates both up and down cleating configurations.
- System Compatibility Hole spacing and rivet size allow seamless upgrades to Harken Classic systems.
- High Strength Rated for a maximum working load of 136 kg (300 lb).
- Max Line Capacity Accommodates lines up to 10mm (3/8 inch) diameter.
- Dual Functionality Can be utilized as a becket block for added versatility.
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 40mm (1 9/16 inch) |
| Max Line Diameter | 10mm (3/8 inch) |
| Max Working Load | 136 kg (300 lb) |
| Cleat Type | Aluminum Cam-Matic® |
| Lead Type | Pivoting |
Who This Is For
Sailors on larger keelboats requiring robust halyard control, and dinghy/beachcat sailors needing efficient sheeting directly from the boom. This block is specifically beneficial for those seeking a lightweight, high-performance solution with integrated cleating.
How It Compares
| Feature | Harken 40mm Carbo Air Block w/Cam-Matic Cleat | Ronstan Series 40 Orbit Block with Cam |
|---|---|---|
| Sheave Diameter | 40 mm | — |
| Max Line Diameter | 10 mm | — |
| Max Working Load | 136 kg | — |
| Pivoting Lead | Yes | Not standard |
| Reversible Cam | Yes | Yes |
Common Concerns Answered
Are there any initial drawbacks to the Cam-Matic cleat?
Some users report the Cam-Matic cleat can be stiff initially. This is a common characteristic that typically resolves with a brief break-in period of use.
What is the expected lifespan of the cleat mechanism?
While rare, occasional reports of cleat mechanism wear can occur during extended, heavy-use periods. Harken products are designed for durability, and proper maintenance will prolong the cleat's functional life.
Is the price a significant factor compared to other blocks?
The price reflects Harken's premium quality and the integrated features like the Cam-Matic cleat and pivoting lead. For sailors prioritizing performance and integrated functionality, the value is often considered high.
Frequently Asked Questions
What is the maximum line diameter this block can handle?
The Harken 40mm Carbo Air Pivoting Lead Block is designed to handle a maximum line diameter of 10mm (3/8 inch).
What is the working load limit for the Harken 40mm Carbo Air Pivoting Lead Block?
The maximum working load limit for this block is 136 kg (300 lb).
Can the Cam-Matic cleat be reversed?
Yes, the Cam-Matic cleat on this block is reversible, allowing for either up or down cleating configurations.
What are the typical applications for this type of block?
Typical applications include halyard control on larger keelboats, mainsheet or jib sheeting on dinghies and beachcats, and vang systems requiring secure line holding and adjustable tension.
Is this block suitable for halyard control on larger keelboats?
Absolutely. Its robust construction, 136 kg (300 lb) working load, and the secure holding power of the Cam-Matic cleat make it highly suitable for halyard control on larger keelboats.
