Description
Ronstan Series 30 High Load Exit Box | Boat Supply Store
This high-load exit box effectively manages lines and wires passing through structural elements, significantly reducing friction and chafing. Engineered with a 30mm Nylatron® sheave and robust Grade 316 Stainless Steel cheeks, it accommodates up to 8.0mm (5/16") rope and 4.0mm (5/32") wire with a substantial 800kg (1,760lbs) breaking load. It is an indispensable component for leading halyards or control lines through decks and bulkheads on performance-oriented vessels, ensuring smooth operation under high static loads.
Key Features
- Minimized Friction with Nylatron® sheave for superior line control.
- Exceptional Durability from Grade 316 Stainless Steel cheeks resisting corrosion.
- High Static Load Capability rated at 800kg (1,760lbs) for critical applications.
- Versatile Line Management for both single rope and wire applications.
- Reduced Chafing to protect your valuable running rigging.
- Smooth Operation ideal for high-tension halyard and control lines.
- Long Service Life even in demanding marine environments.
- Compact Design for efficient integration through decks or bulkheads.
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 30mm (1-3/16") |
| Max. Rope Diameter | 8.0mm (5/16") |
| Max. Cable Diameter | 4.0mm (5/32") |
| Breaking Load (B.L.) | 800kg (1,760lbs) |
| Sheave Material | Nylatron® |
| Cheek Material | Grade 316 Stainless Steel |
Who This Is For
Sailors and boat owners requiring a robust and low-friction solution for routing halyards, control lines, or wire rigging through structural elements of their vessel. Ideal for applications demanding high static load capacity and reduced chafe on running rigging.
How It Compares
| Feature | Ronstan Series 30 High Load Exit Box | Competitor |
|---|---|---|
| Sheave Diameter | 30.0mm (1-3/16") | — |
| Max. Rope Diameter | 8.0mm (5/16") | — |
| Max. Cable Diameter | 4.0mm (5/32") | null, null |
| Breaking Load (B.L.) | 800kg (1,760lbs) | — |
| Sheave Material | Nylatron® | High-density polymer, Composite |
| Cheek Material | Grade 316 Stainless Steel | Anodized aluminum, Composite |
Common Concerns Answered
Are there common complaints about Ronstan exit boxes?
While this specific model has no documented complaints, general concerns for similar hardware can include installation complexity in confined areas or potential wear over extended use in harsh marine conditions. The Nylatron® sheave is designed for durability, but abrasive rope or infrequent maintenance could lead to wear.
Why is this exit box more expensive than a generic block?
The Ronstan Series 30 High Load Exit Box is engineered for specialized, high-load applications and utilizes premium materials like Nylatron® and Grade 316 Stainless Steel for superior performance and longevity. Its specific design for routing lines through structures offers a significant advantage over generic blocks, justifying the investment for demanding use cases.
What if I'm not experienced with marine hardware installation?
Installation requires precision and proper sealing of the mounting surface. Familiarity with marine deck hardware installation techniques, including accurate drilling and effective sealing, is beneficial for a secure and watertight fit. If uncertain, consulting with a qualified marine technician is recommended.
Frequently Asked Questions
What is the maximum rope diameter this exit box can accommodate?
The Ronstan Series 30 High Load Exit Box can accommodate a maximum rope diameter of 8.0mm (5/16").
What is the maximum cable diameter this exit box can accommodate?
This exit box is designed to accommodate a maximum cable diameter of 4.0mm (5/32").
What is the breaking load (B.L.) of the Ronstan Series 30 High Load Exit Box?
The breaking load (B.L.) for this exit box is 800kg (1,760lbs).
What materials are used in the construction of this exit box?
The exit box features a Nylatron® sheave and Grade 316 Stainless Steel cheeks for superior durability and corrosion resistance.
What are the ideal applications for this type of exit box?
This exit box is ideal for high static load applications such as leading halyards, control lines, or wire rigging through decks, bulkheads, or spars to minimize friction and chafing.
