Sailing from the cockpit at the press of a button

HYDRAULICS

Onboard Hydraulic systems are used for various purposes on a growing number of different type of boats. Seldén’s range of hydraulic driven functions provide the cruising sailor convenient and safe sail handling systems that are easy to operate for a small crew, as well as the performance sailor looking for a powerful way to tension the rig for optimized boat speed. Our customized installations have been used on high end yachts for decades where we provide a complete system. Hydraulic pumps, furling systems, cylinders, hoses, terminals and most importantly – our technical knowhow and quality control. Every drive unit for a furling mast or a Furlex system is pressure tested in our hydraulic workshop in Gothenburg and we keep a record of all above deck hose lengths for future reference.

HYDRAULICS FOR CRUISE CONTROL

The Furlex Hydraulic is designed to provide a harmonious visual interplay of stainless steel and aluminium. The hydraulic motor is located inside the worm gear, in the same way as it is with the furling mast system. The positioning of the motor contributes to the compact design of the Furlex Hydraulic.

FURLING MAST

Sailing from the cockpit at the press of a button. A powered furling mast enables you to reef, furl and trim the sail area to suit the wind conditions at the touch of a button. The patented, built-in motor has a direct drive to the worm gear, to keep moving parts to a minimum and increase power, efficiency and reliability. The worm gear, which is self-braking, locks the sail in the required position. In an emergency, the mainsail can also be manually furled and unfurled with an ordinary winch handle.

HYDRAULIC BOOM

Hydraulic clew outhaul – the ultimate control The push-button controls in the cockpit give you complete command of your mainsail. You can also trim the outhaul when sailing close hauled – a task which would ordinarily require the full strength of a crew member using a manual winch. Furthermore, there is no clew outhaul line to clutter up the cockpit.

HYDRAULICS FOR TRIM

HYDRAULIC ADJUSTERS AND VANGS

Fast and convenient adjustment of the backstay and the vang is vital both for the racing sailor and for the cruising sailor. Being able to tension the forestay, adjust the pre-bend of the mast and control the power in the mainsail will make any boat point higher, sail faster and under better control. Seldén has developed a range of hydraulic cylinders based on functional design, ease of use, reliability and long service life. The rods are marine grade stainless steel and the cylinders black anodized or clear anodized aluminium. The tensioners have long stroke making it possible to try out different mast rakes.

CONTROL PANELS

Available for single function or 4-functions.
• The panels have a Dual Action function which means the pump is active both when pushing and when pulling the handle.
• An adjustable relief valve prevents overload.
• A 2-speed function permits fast tensioning until a pre-set pressure is obtained. Then the panel shifts down to low speed and reduced resistance in the handle. The level of pressure needed to gear down is easily adjusted to suit the individual trimmer.
• The panels can be connected to an electric pump station that replaces manual pumping with the push of a button.
• The panels are black anodized or clear anodized aluminium.

MAST JACK SYSTEM

A mast jack from Seldén ensures that you always retain the right rig tension for racing. It also lets you relieve the load on the rig and boat when you are in port. The mast jack system consists of a hydraulic cylinder located inside the mast. The cylinder piston moves down vertically through the heel of the mast to a steel plate in the boat’s T-base, thereby lifting the mast and increasing the tension. In order to make it easier to jack up the mast, the system includes a two-stage pump that switches to its lower gear as the pressure increases. When the mast reaches its upper position, shims are placed between the heel and the T-base. Release the pressure and remove the pump. Now, the rig is set in accordance with the predetermined requirements. So is the boom height, I-measurement and other rating measurements recorded by the measuring official. The pump is connected to the cylinder with stainless steel couplings, and can easily be disconnected and left ashore prior to racing. The hydraulic hose is then stored in a purpose-designed hose garage to keep it out of the way. The hose garage itself is fitted inside the mast. The T-base has the same pattern of holes as Seldén’s standard T-base, and its position can be adjusted in fore and aft direction to obtain the optimal mast rake.

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