Catalog
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Boat Exterior & Deck Equipment
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Boat Mechanics & Marine Systems
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Yacht & Boat Interior Accessories
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Sailboat Hardware & Sailing Gear
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Marine Comfort Systems
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Boat Must-Haves Gear & Extras
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Outboard Motor Accessories & Parts
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Marine Parts & Technical Equipment
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Boating & Yacht Equipment Brands
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Marine Propulsion & Control Systems
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Marine Pumps, Sanitation & Toilets
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Marine Power & Electrical Systems
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Marine Anchoring & Maneuvering
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Marine Galley, Comfort & Utility Gear
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Marine Lighting & Navigation Illumination
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Industrial Pumps & Equipment
The Ronstan double block is a versatile sailing component designed to handle various rigging tasks on yachts and boats. It features two sheaves mounted on a single frame, allowing for increased line control and efficiency. With its durable construction and smooth bearings, it ensures reliable performance in different sailing conditions. The double block is commonly used for applications such as halyards, sheets, and control lines, providing sailors with enhanced maneuverability and sail control.
1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF20202 Series 20 Ball Bearing Double Block with Shackle, a game-changer in the world of sailing rigging. This innovative block, featuring a Dual Axis Shackle Head for unparalleled flexibility, ensures smooth and effortless movement even under high loads, thanks to its precision-engineered low-friction operation. With impressive load capacities and lightweight design, this block is a must-have for sailors seeking top-notch performance and reliability in their rigging setups.
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€ 34
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1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF20212 Series 20 Ball Bearing Double Block with Becket and Shackle—a sailing accessory engineered to elevate rigging systems with precision and versatility. Featuring a dual-axis head for flexible positioning, it seamlessly integrates into various setups. Its low-friction operation ensures smooth maneuvering while its robust design withstands high loads. Despite its durability, the block remains lightweight, crafted from high-quality materials. With a breaking load of 700 kg and a maximum working load of 350 kg, it's suitable for diverse sailing conditions. This block promises optimal performance, making it a must-have for sailors seeking reliability and efficiency on the water.
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€ 37,70
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1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF20281 Series 20 Ball Bearing In-Line Double Block—a versatile marvel engineered for excellence in sailing. Glide through maneuvers effortlessly with its low friction design, while its high load capacity ensures resilience in the face of the elements. Lightweight yet robust, this block optimizes performance, accommodating various rope diameters with ease. With unparalleled precision and quality, elevate your sailing experience with the Ronstan RF20281, your trusted companion for unforgettable adventures on the water.
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€ 33,60
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1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF30721 Series 30 Ball Bearing Block, Double Exit - meticulously engineered for exceptional performance on the water. With a robust Breaking Load capacity of 750 kilograms and a Maximum Working Load of 300 kilograms, this versatile block ensures smooth operation for various sailing tasks. Its lightweight design, weighing only 60 grams, coupled with easy installation using just two 5mm fasteners, makes it a convenient and reliable choice for sailors of all levels. The included cover plate adds durability, protecting the internal components from harsh marine conditions. Trust in the Ronstan RF30721 to enhance your sailing experience with efficiency and precision.
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€ 36,71
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF41202 Series 40 AP Double Block With Swivel epitomizes precision engineering and expert craftsmanship in professional yacht rigging. Its robust construction, swivel mechanism, and impressive load capacities ensure unmatched performance and durability, making it a trusted choice for sailors worldwide. Crafted with attention to detail and hailing from Holland, this block combines technical prowess with elegance, enhancing both functionality and aesthetics on any yacht or sailboat.
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€ 48,29
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1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF41212 AP Block Double Becket: meticulously crafted for maritime excellence. With a robust Ø 40 mm sheave capable of accommodating ropes up to 10 mm in diameter, this block ensures smooth operation even in the harshest sailing conditions. Boasting a Safe Working Load (SWL) of 600 daN and a Breaking Load (BL) of 1200 daN, it offers unmatched strength and reliability. Its sleek design minimizes wind resistance while maximizing performance, making it the ultimate choice for sailors seeking precision and durability on the open water.
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€ 61,28
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1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF51200 Series 50 All Purpose Block Double, meticulously crafted to elevate sailing experiences with its exceptional design and functionality. Engineered for durability in marine environments, this block boasts high working loads ensuring reliability amidst challenging conditions. Its self-lubricating Acetal polymer sheave minimizes friction and guarantees smooth operation, while the slotted pin shackle eliminates the risk of fouled lines. With impressive technical specifications, including a breaking load of 2000 kg and a maximum working load of 1000 kg, compatibility with ropes up to 12 mm in diameter, and a lightweight construction of 255 grams, this block ensures both strength and efficiency. Compatible with Series 125 roller ball bearing, it seamlessly integrates into existing setups, offering convenience and reliability. In summary, the Ronstan RF51200 Series 50 All Purpose Block Double represents excellence in sailing hardware, promising unparalleled performance and durability for sailors of all levels.
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€ 80,17
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF51210 Series 50 All Purpose Block Double with Becket is a state-of-the-art sailing component engineered for superior performance and durability. Its high working loads ensure effortless navigation in challenging conditions, while its low-maintenance design, featuring self-lubricating Acetal polymer sheaves, promises extended service life with minimal upkeep. Equipped with a slotted pin shackle and a snap fit removable becket pin, this block prioritizes smooth operation and convenient maintenance. Spare parts like the RF51010 Replacement Becket Pin and RF151 shackle offer added peace of mind. With impressive specifications including a breaking load of 2000kg and a maximum working load of 1000kg, this lightweight yet robust block caters to diverse sailing needs, making it an indispensable asset for both seasoned sailors and novices alike.
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€ 100,95
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF35202 Series 30 Ball Bearing Orbit Block Double is a lightweight yet incredibly sturdy sailing hardware, offering the highest working load in its class. Its secure attachment mechanism and low-friction ball bearing system ensure reliable performance under various conditions. With specifications suited for high-performance sailing and compatibility with ropes up to 8mm in diameter, this block provides versatility without sacrificing strength. Additionally, specialized variants like the SP versions with Nylatron sheaves cater to diverse rigging needs, making it an essential tool for sailors seeking peak performance and adaptability on the water.
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€ 45,23
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF35212 Series 30 Ball Bearing Orbit Block Double with Becket embodies innovation and efficiency in design. Lightweight yet robust, it offers the highest working load capacity in its class, ensuring reliability in demanding conditions. Its secure attachment mechanism and ultra-low profile thru-sheave becket enable seamless integration into rigging setups, prioritizing functionality without compromising performance. With a low-friction 2-stage ball bearing system and a Nylatron sheave for rope and wire, it guarantees consistent performance and versatility. Specifications include a breaking load (B.L.) of 900 kg, a maximum working load (M.W.L.) of 450 kg, and compatibility with ropes up to 8mm in diameter, all while weighing just 57 grams. Additionally, it's equipped to handle a 4:1 system at its rated load, making it adaptable to various rigging configurations while maintaining safety standards.
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€ 49,23
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1-2 weeks delivery time Price incl. 19% VAT Introducing the RF45201 and RF55201, two stellar additions to Ronstan's Series 40 Ball Bearing Orbit Block Double lineup, equipped with Dyneema Link Heads for enhanced performance. Featuring a cutting-edge low friction 2-stage Orbital ball bearing system, these blocks ensure smooth operation under pressure, offering unparalleled reliability with the highest working load in their class. Their low profile and compact build further enhance their appeal, while the high-performance cleating system provides secure rope management. Crafted for convenience, these blocks come equipped with easily fitted and securely retained Dyneema Link heads, boasting impressive specifications with a breaking load (B.L.) of 1000kg and a maximum working load (M.W.L.) of 500kg, accommodating ropes up to 9mm in diameter, making them indispensable for any sailing endeavor. For sailors seeking superior performance and reliability, the RF45201 and RF55201 stand as top choices, ensuring these blocks remain essential components of any sailing rig for years to come.
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€ 71,51
Diameter, mm:
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1-2 weeks delivery time Price incl. 19% VAT Introducing the RF45211 and RF75211 from Ronstan's renowned Series 70 Orbit Block collection, these innovative designs offer enhanced functionality for various sailing needs. Featuring compact and larger options with diameters of 40 and 70 respectively, they boast cutting-edge features such as ultra-lightweight construction, low-friction 2-stage Orbital ball bearing systems, and high-performance cleating. With the highest working load in their class, low-profile designs, and ultra-low-profile beckets, these blocks redefine excellence in sailing hardware, ensuring smooth operation and reliable performance in any sailing condition.
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Diameter, mm:
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF64202 Series 60 Core Block Double boasts a revolutionary non-swivel head design, combining sleek contemporary styling with top-tier performance for diverse applications. With outstanding load performance, reduced friction, and versatile features such as a removable threaded pin and a multifunctional central hub, this block delivers reliability and ease of use. With impressive specifications including a 2000kg breaking load and compatibility with ropes up to 12mm in diameter, it offers robust performance without compromising on maneuverability at a mere 390 grams. Compatibility with the RF618T twisted shackle further enhances its adaptability, making it an outstanding choice for maritime rigging setups.
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€ 237,72
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF64251 Series 60 Core Block Double Foot sets a new standard for performance and reliability in foot blocks, boasting class-leading performance, modern design, and exceptional load capacity. With its low friction, it ensures smooth operation and efficiency in various applications, while its robust construction and attention to detail make it a reliable choice for professionals and enthusiasts alike, offering peace of mind and superior functionality across different industries and scenarios.
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€ 214,09
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF74202 Series 75 Core Block Double features a non-swivel shackle head design for innovative functionality. Its sleek styling combines with class-leading performance, excelling in both dynamic and high static load scenarios, ensuring reliability in various sailing conditions. With less than half the friction of competitors, it offers smoother operations and enhanced efficiency. The block's versatility is showcased through a removable threaded pin at the shackle head and a central hub serving as a becket take-off point, accommodating lines up to 13.5mm thick. Boasting impressive specifications with a Breaking Load (B.L.) of 3000 kg and a Maximum Working Load (M.W.L.) of 1500 kg, it supports ropes up to 14mm in diameter while weighing just 506 grams, minimizing added weight to rigging setups. For optimal functionality, it's recommended to use the RF618T shackle for 90-degree attachments, ensuring seamless integration with sailing systems. In summary, the Ronstan RF74202 Series 75 Core Block Double is the top choice for sailors seeking excellence on the water.
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€ 254,67
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1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF662 Series 20 Utility Block Double, a versatile solution crafted with double, tube rivet construction, promising sturdy performance in various applications. Built for endurance with a lightweight yet durable construction, this block offers hassle-free operation and maintenance-free functionality, accommodating ropes up to 5mm in diameter. Weighing only 20 grams, it ensures portability without compromising strength, while its Acetal sheave material guarantees smooth operation and durability. With dimensions of 297.0mm in height and 210.0mm in width, it provides ample size for efficient handling and installation, making it an ideal choice for your project's needs.
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€ 25,12
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1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF417 Series 30 Utility Double Block Tube Rivet, engineered for optimal performance in various applications. Crafted with lightweight yet durable materials, this versatile block ensures secure and reliable functionality in rigging setups. Experience cost-effectiveness without compromising quality, as its maintenance-free design offers exceptional value for sailing and rigging needs. With impressive specifications including a Breaking Load (B.L.) of 1300 kg and a Maximum Working Load (M.W.L.) of 450 kg, this block delivers robust performance for various tasks while accommodating ropes up to 8mm in diameter. Weighing just 40 grams, its compact design maintains strength and reliability, contributing to enhanced performance on the water.
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€ 24,53
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1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF81 Series 29 Utility Block with a Double Loop Top, crafted for seamless rigging experiences. Featuring a lightweight yet durable construction, this block ensures secure attachment and ease of use in various applications. Its economical design offers cost-effective solutions without compromising on performance, while hassle-free maintenance allows for uninterrupted performance on the water. With a breaking load of 600 kg and a maximum working load of 300 kg, this block is engineered to handle demanding loads with ease. Compatible with ropes up to 8 mm in diameter and weighing just 40 grams, it offers versatility without sacrificing maneuverability, making it the ideal choice for sailing enthusiasts seeking quality and reliability.
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€ 29,53
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1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF15202 Series 15 Ball Bearing Double Block with Loop Top, a versatile and efficient sailing accessory. This compact and lightweight block features a loop head for splicing or lashing attachments, or it can be easily shackled using the RF633S. With its precision-molded acetal sheave running on stainless steel ball bearings, it delivers high performance and minimal friction. It has a breaking load of 700 kg, a maximum working load of 240 kg, and can accommodate ropes up to 5 mm in diameter. Weighing only 23 grams, this block combines durability, reliability, and practicality for various sailing applications.
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€ 25,80
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1-2 weeks delivery time Price incl. 19% VAT Introducing the Ronstan RF15212 Series 15 Ball Bearing Double Block with Becket and Loop Top, featuring enhanced performance, compact size, and lightweight construction. Designed for versatility with its becket and loop head, this double block offers smooth operation and exceptional durability. Upgrade your sailing equipment with the RF15212 for optimal performance on the water.
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€ 29,36
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- Versatile sailing component with two sheaves
- Durable construction for reliability
- Smooth bearings for smooth operation
- Used for halyards, sheets, and control lines