Description
Barton Marine Ratchet Block 55mm | Boat Supply Store
Engineered for precise load management in demanding sailing conditions, this block mitigates the risk of accidental mainsail or spinnaker release. Its 55mm sheave diameter, paired with a robust 661 lb (300 kg) Safe Working Load, ensures reliable performance under significant stress. The integrated 12-faced anodized aluminum sheave minimizes friction during sail trim, a critical factor when navigating coastal waters or racing offshore.
Key Features
- Secure Ratchet mechanism for holding loaded lines
- Versatile Stainless steel lever to lock swivel head
- Durable High-density nylon and glass fiber reinforced polymer body with UV protection
- Corrosion-Resistant Marine grade 316 stainless steel internal components
- Low Friction 12-faced, anodized aluminum sheave
- Longevity Designed for extended service life in harsh marine environments
- Optimized Suitable for mainsheet and spinnaker sheets
- Compact Ideal for dinghies, keelboats, and small yachts up to 30 feet
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 55mm (2-3/16") |
| Safe Working Load | 661 lb (300 kg) |
| Breaking Load | 2,646 lb (1,200 kg) |
| Maximum Rope Diameter | 3/8" (10 mm) |
| Weight | 4.8 oz (135 grams) |
| Body Material | UV-protected composite (high-density nylon & glass fiber reinforced polymer) |
| Internal Components | Marine grade 316 stainless steel |
| Sheave Type | 12-faced, anodized aluminum |
| Features | Locking swivel head lever |
Who This Is For
Dinghy and keelboat sailors, along with owners of small yachts up to 30 feet, will find this block essential for managing mainsheet and spinnaker loads. It is designed for those prioritizing controlled easing and dependable holding power in performance sailing scenarios.
How It Compares
| Feature | Barton Marine Ratchet Block 55mm | Competitor |
|---|---|---|
| Sheave Diameter | 55mm (2-3/16") | — |
| Safe Working Load | 661 lb (300 kg) | 1000 lb (450 kg), 770 lb |
| Breaking Load | 2,646 lb (1,200 kg) | 3,000 lb (1,360 kg), 2,200 lb |
| Max Rope Diameter | 3/8" (10 mm) | — |
| Weight | 4.8 oz (135 grams) | 130g, 125g |
| Locking Swivel Head Lever | Yes | No, No |
| Body Material | UV-protected composite (high-density nylon & glass fiber reinforced polymer) | High-strength, UV-stabilized polymer, High-strength, UV-stabilized polymer |
| Internal Components | Marine grade 316 stainless steel | Stainless steel, Stainless steel |
| Sheave Type | 12-faced, anodized aluminum | Aluminum, Aluminum |
Common Concerns Answered
Is the ratchet mechanism prone to jamming?
The ratchet mechanism can become stiff if not maintained. Regular rinsing with fresh water and occasional lubrication will ensure smooth operation and longevity.
Is this block suitable for larger diameter ropes or heavier loads?
This 55mm block is rated for a 3/8" (10 mm) maximum rope diameter and a 661 lb (300 kg) Safe Working Load. For significantly heavier loads or larger ropes, consider a block with a larger sheave diameter and higher SWL rating.
Is the initial cost justified for my needs?
While the initial investment may be higher than basic blocks, the Barton Marine Ratchet Block's advanced features, durable materials like 316 stainless steel, and superior performance in load control and longevity provide significant value for demanding sailing applications.
Frequently Asked Questions
What is the safe working load of the Barton Marine Ratchet Block - 55mm?
The Safe Working Load (SWL) for the Barton Marine Ratchet Block - 55mm is 661 lb (300 kg).
What is the breaking load of the Barton Marine Ratchet Block - 55mm?
The Breaking Load for the Barton Marine Ratchet Block - 55mm is 2,646 lb (1,200 kg).
What is the maximum rope diameter this block can accommodate?
This ratchet block can accommodate a maximum rope diameter of 3/8" (10 mm).
What materials are used in the construction of the Barton Marine Ratchet Block - 55mm?
The block features a UV-protected composite body and marine-grade 316 stainless steel internal components, with a 12-faced anodized aluminum sheave.
Can the swivel head on the Barton Marine Ratchet Block be locked?
Yes, the Barton Marine Ratchet Block - 55mm features an integrated stainless steel lever for locking the swivel head.
