Description
Harken 40mm Carbo Air Triple Swivel Block | Boat Supply Store
Engineered for efficient sail control in demanding conditions, this Harken block offers unparalleled strength-to-weight ratio. Its 40mm sheave diameter and low-friction Carbo Air construction ensure optimal performance with control lines up to 10mm (3/8 inch). With a robust 660 kg (1455 lb) maximum working load, it reliably handles mains, jibs, and halyards for sailors prioritizing performance and weight savings on coastal cruising vessels.
Key Features
- Lightweight Carbo Air construction reduces rig weight
- Strong design for high-performance applications
- Low-friction sheave ensures effortless line movement
- High working loads of 660 kg (1455 lb) for safe operation
- Compact profile minimizes space requirements
- Triple swivel configuration offers versatile lead angles
- Becket provides a secure attachment point for cascading systems
- Durable Carbo Air composite resists wear and environmental factors
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 40mm (1 9/16 inch) |
| Maximum Line Diameter | 10mm (3/8 inch) |
| Maximum Working Load | 660 kg (1455 lb) |
| Construction Material | Carbo Air |
| Swivel Type | Triple Swivel with Becket |
Who This Is For
Sailors and boaters requiring a reliable, lightweight, and high-performance block for various control line applications like mainsheets, jib sheets, and halyards. This block is ideal when optimizing space and reducing weight are critical considerations for enhanced sailing dynamics.
How It Compares
| Feature | Harken 40mm Carbo Air Triple Swivel Block | Competitor |
|---|---|---|
| Sheave Diameter | 40 mm (1 9/16 in) | — |
| Maximum Line Diameter | 10 mm (3/8 in) | — |
| Maximum Working Load (kg) | 660 kg | — |
| Construction Material | Carbo Air | Composite |
| Swivel Type | Triple Swivel with Becket | Swivel with Becket, Triple Swivel |
Common Concerns Answered
Is the price a significant barrier for this block?
While price can be a factor for budget-conscious sailors, the Harken 40mm Carbo Air Triple Swivel Block's advanced Carbo Air construction, low friction, and high load rating justify its investment for enhanced performance and longevity in demanding sailing applications.
Will I need to purchase additional mounting hardware?
The block itself is designed for integration into existing rigging systems. It's recommended to verify your specific mounting point and hardware requirements, as specialized adapters or shackles are sometimes necessary depending on your setup, and are not always included.
How does this block perform in terms of durability over time?
Harken's Carbo Air construction is renowned for its strength and resistance to wear. While all marine hardware benefits from proper maintenance, this block is designed for longevity in harsh marine environments, with general concerns often relating to extended UV exposure rather than core functional wear.
Frequently Asked Questions
What is the maximum line diameter this block can handle?
This Harken 40mm Carbo Air Triple Swivel Block is rated for a maximum line diameter of 10mm (3/8 inch).
What is the working load limit of the Harken 40mm Carbo Air Triple Swivel Block?
The maximum working load for this block is 660 kg (1455 lb).
Is this block suitable for high-load applications?
Yes, with a maximum working load of 660 kg (1455 lb), this block is designed for and suitable for demanding, high-load sailing applications.
What makes Carbo Air blocks lightweight and strong?
Carbo Air blocks utilize a composite construction that combines high-strength materials with an optimized structure, resulting in exceptional durability and load-bearing capacity while significantly reducing overall weight.
Can this block be used with larger diameter lines?
No, this specific Harken 40mm Carbo Air Triple Swivel Block is designed and rated for a maximum line diameter of 10mm (3/8 inch). Using lines exceeding this specification would compromise safety and performance.
