Seldén brings 45 years of furling expertise to in-boom furling
Seldén is expanding its furling portfolio with the launch of the Seldén IBF – In-Boom Furling, a newly developed furling boom that completes the company’s famous range of furling masts.
Building on more than four decades of experience in furling technology, Seldén has developed the IBF around the same principles that underpin its successful Furlex jib furling systems, CX downwind furlers and furling masts: intuitive operation, controlled sail handling and attention to detail.
The first IBF model is designed for yachts up to 40 feet and is available in two versions: a manual system and an electric version with manual backup. The electric version features an integrated motor allowing for a two-speed velocity in the furling mandrel.
“It’s all about allowing a small crew to adjust their sail plan with ease,” says Mats-Uno Fredrikson, Director of Marketing at Seldén Group. We have chosen an extruded and tapered aluminium section for the furling boom, drawing on our long experience with masts and booms in aluminium. This enables us to offer a competitive solution while maintaining the quality and performance associated with Seldén. Whether the main sail is furled vertically into the mast or horizontally into the boom is ultimately a matter of preference.”
Manual or electric
The manual furling boom is operated using an endless furling line led back to a winch in the cockpit. The line driver incorporates a ratchet mechanism for safe furling and to prevent the sail from unintentionally unrolling.
The electric version provides push-button operation and can be combined with a Seldén electric winch to synchronise mainsail hoisting with the furling boom. The system automatically coordinates the speed of the halyard winch with the furling mandrel.
“The motor in the boom feeds the sail out, while the halyard winch adapts its speed to the halyard tension,” explains Fredrikson. “The system is based on SEL-Bus, the same intelligent CAN-bus technology we use across our range of electrically powered sail-handling functions. This results in a smooth and controlled hoist, without unnecessary stress on the sail, halyard or winch. When reefing the sail, simply release the halyard and let the motorized furling mandrel bring the sail into the boom.”
The Seldén IBF furling boom will be unveiled at METS, stand #01-775, and deliveries are expected to commence during April 2027.
Estimated retail price excluding VAT starts at:
Manual IBF: €15900
Electric IBF: €18650 (excluding SEL-Bus and Power Supply)
Seldén Mast AB, November 10, 2026