Description
Ronstan Series 40 Triple Swivel Block | Boat Supply Store
Engineered for demanding rigging applications, this block decisively manages sheets, halyards, and control lines under significant load. Its construction features UV stabilized Acetal sheaves with Grade 316 stainless steel bearing races, ensuring sustained performance and minimal friction. Ideal for offshore cruising or competitive racing on vessels up to 8m (26ft), this component provides superior durability and reliability in challenging marine environments.
Key Features
- Exceptionally High Working Loads for demanding applications
- Low Maintenance for long service life
- Self-Lubricating Acetal sheaves reduce friction
- Eliminates Fouled Lines with slotted pin shackle
- Versatile Rigging with two-way head post
- UV Stabilized Acetal sheaves resist degradation
- Impact and UV Resistant fiber reinforced Nylon cheeks
- Corrosion-Resistant Grade 316 stainless steel fittings
Specifications
| Product Specifications | |
|---|---|
| Sheave Material | UV stabilized Acetal |
| Cheek Material | Impact and U.V. resistant, fibre reinforced Nylon |
| Bearing Race Material | Grade 316 stainless steel |
| Load Strap Material | Grade 316 stainless steel |
| Head Fitting Material | Grade 316 stainless steel |
| Head Type | Swivel Head |
| Block Type | Triple |
| Maximum Boat Length | 8m (26ft) |
| Shackle Type | Slotted pin shackle |
Who This Is For
Cruising and racing sailors on off-the-beach catamarans, one-design classes, and sportsboats up to 8m (26ft) requiring a durable, high-performance block for essential control lines. Individuals demanding reliability and minimal maintenance in their rigging systems will find this block exceptionally suited to their needs.
How It Compares
| Feature | Ronstan Series 40 Triple Swivel Block | Competitor |
|---|---|---|
| Sheave Material | UV stabilised Acetal | Carbo (composite), Composite |
| Cheek Material | Impact and U.V. resistant, fibre reinforced Nylon | Carbo (composite), Composite |
| Bearing Race Material | Grade 316 stainless steel | Composite bearing, Composite bearing |
| Head Type | Swivel Head | Swivel, Swivel |
| Block Type | Triple | Triple, Triple |
Common Concerns Answered
Are there any common complaints about the Ronstan Series 40 All Purpose Block?
While explicit complaints are rare, potential sheave wear over extended, heavy use is a consideration, though the block is generally regarded as highly durable.
How does the price compare to other blocks?
The price point reflects the premium materials and robust construction, offering superior longevity and performance compared to lower-end alternatives, which may represent a higher long-term cost of ownership.
Is this block suitable for very heavy loads?
This block offers exceptionally high working loads for its size, but it's crucial to verify the specific load ratings against your intended application to ensure safe and effective operation.
Frequently Asked Questions
What is the working load limit for the Ronstan Series 40 All Purpose Block - Triple - Swivel Head?
Specific working load limits are detailed in the product's technical documentation, which can be accessed through the manufacturer's website or by contacting our support team for precise figures relevant to this model.
What are the typical applications for this block?
This block is typically used for mainsail, halyard, vang, and spinnaker control lines on sailboats up to 8 meters (26 feet), including off-the-beach catamarans and sportsboats.
What materials are used in the construction of this block?
The block features UV stabilized Acetal sheaves, impact and UV resistant fiber reinforced Nylon cheeks, and Grade 316 stainless steel for the bearing race, load strap, and head fitting.
Is this block suitable for both cruising and racing sailboats?
Yes, its durable construction, high load capacity, and low-maintenance design make it suitable for both demanding racing conditions and reliable cruising applications.
What spare parts are available for this block?
While specific spare parts availability can vary, Ronstan typically offers replacement sheaves and potentially other wear items for their blocks. Please consult Ronstan's official parts list or contact customer support for detailed information.
