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soft-close flap stay upward from Sugatsune America is a lid support designed for upward and top-opening flaps using concealed or single knuckle hinges, so it manages lift and hold for overhead cabinet or work-surface doors. The SDS-301N/WHT configuration is a soft-upward stay with a torque rating of 35-60 lbs/in, which helps control motion on flaps sized and weighted within that range for smoother operation. This lid support is part of the Lid Supports and Stays product class, so it fits into projects where controlled opening and holding are needed on top-opening applications. The design holds the door in both the closed and opened positions, reducing flap movement once positioned during regular use. The unit is non-handed, allowing the same stay to work on either side of the cabinet or flap, simplifying layout and stocking on jobs that use multiple units.
This Sugatsune SDS-301N/WHT soft-upward stay is designed for upward and top-opening flaps, so the mounting orientation supports lids that swing up rather than down. It works with concealed or single knuckle hinges, tying the stay action to typical hinge types used on modern cabinetry, so motion feels consistent. The 90 degree opening angle sets the final open position, which defines how far the flap moves and where it stops during installation layout. A recommended 13/16 inch door thickness connects directly to mounting screw line placement and clearance, helping the installed stay track correctly along the flap edge. The torque rating of 35-60 lbs/in relates lid height, lid weight, and stay performance, guiding flap sizing so the motion stays controlled. Because the unit is non-handed, planning left or right mounting uses the same part number on both sides.
The SDS-301N/WHT lid support is specified for upward and top-opening flaps, so it functions as the support arm that controls lid travel on overhead doors. It belongs in the Lid Supports and Stays category, meaning it handles the support role instead of the hinge, letting hinges focus on pivoting. A 90 degree opening angle defines a right-angle open position, so flaps stop consistently, which is useful where clearances above the cabinet are tight. The design holds the door in the opened position, so users can access contents without holding the flap by hand. It also holds the door in the closed position, so the flap remains shut against the cabinet front during regular use. When paired with a magnetic catch or touch latch, the stay works with these closure methods, supporting front surfaces without protruding pulls where that style is desired.
The 35-60 lbs/in torque rating is defined as lid height times lid weight times one-half, which ties directly to flap design and helps match the stay to the project requirements for balanced movement. Within that torque window, the soft-upward action manages opening force more smoothly, which helps reduce abrupt lid movement in normal operation. The recommended 13/16 inch door thickness keeps the hardware geometry in a range where the stay and hinges work together predictably, aiding repeatable layouts across multiple cabinets. Compatibility with concealed or single knuckle hinges allows this stay to integrate with common hinge systems, so hinge choice and stay function coordinate in a single design. The non-handed construction lets the same SDS-C301N part mount on either side, helping installers use one configuration across left and right applications without changing part numbers.
The SDS-301N/WHT supports upward and top-opening flaps, so it is suited to overhead or lift-up cabinet doors where the panel swings up from the front edge.
The 35-60 lbs/in torque rating uses lid height times lid weight times one-half, so flap size and weight can be planned to keep operation within that controlled range.
This Sugatsune soft-close flap stay is designed to work with concealed or single knuckle hinges, so it coordinates with these hinge types on top-opening flaps.
The SDS-301N/WHT flap stay has a 90 degree opening angle, so the flap stops at a right angle when fully opened, defining its final raised position.
The SDS-C301N design is non-handed, so a single part number works on either the left or right side, simplifying layout for mirrored installations.
A 13/16 inch recommended door thickness keeps the stay geometry aligned with typical cabinet doors, supporting smooth motion and consistent mounting clearances.
The Sugatsune SDS-301N/WHT soft-upward stay pairs a 35-60 lbs/in torque range with a 90 degree opening angle, so it suits upward or top-opening flaps designed within that window. Its role in holding doors in both closed and opened positions streamlines everyday cabinet use where controlled lid behavior matters. Non-handed construction and compatibility with concealed or single knuckle hinges mean one part number can support various layouts on lift-up fronts. The recommended 13/16 inch door thickness and torque formula together help align flap design with the stay capability. For projects needing a soft-close flap stay upward in white that works with magnetic catches or touch latches, this SDS-301N/WHT configuration from Wurth Baer Supply offers a focused option.
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