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HDS-10S-ML/WT lid stay is a Sugatsune America medium duty stay designed for downward-opening flap doors, so it supports drop fronts that open down instead of up. As a left-hand version, it is built for installations where the stay mounts on the left side of the cabinet opening, helping you plan matched left/right layouts around your hinges. Classified under lid supports and stays, it is intended for work surfaces, tables, or cabinets that use a flap door, giving that panel controlled support instead of letting it free fall. Being a medium duty model means it targets typical flap door sizes and weights in many cabinet and workstation applications, so it fits a wide range of everyday projects. Sold through Wurth Baer Supply, it fits into a hardware lineup geared to woodworking and cabinet installations.
The web description states this stay is for a downward-opening flap door used with piano, butt, or drop hinges, so it is meant to work alongside those hinge types instead of replacing them. That pairing means the hinge carries the pivot while the stay controls motion, giving you a predictable division of roles between components. Reference to drop hinges with codes SDH-001 and SDH-P shows it is aligned to common hinge choices for drop-front designs, simplifying hardware planning around standard parts. By tying the stay to these hinge styles, the product helps create a consistent opening path and closing feel across different cabinet and work surface layouts.
The description notes this hardware is for a downward-opening flap door, so the panel swings down to horizontal or near-horizontal during access, which is typical for desk fronts or service counters. When pushed to close, the HDS-10S is designed to self close and soft close, so once the user nudges the door upward, the mechanism finishes the closing motion while damping speed, reducing sudden slams against the cabinet frame. Being part of lid supports and down stays means it is intended to manage that moving panel rather than act as a hinge, so the hinge and stay work together to guide the door path. With Sugatsune America branding, it ties into a broader system of flap and lid motion components, which can help keep operation characteristics similar across multiple openings in the same project.
The torque calculation is given as Torque = Door Height x 1/2 x Door Weight, which ties the stay selection directly to measurable door dimensions and mass, helping target the correct strength category. The K-Type rating is 60 to 95 kgf.cm (52 to 82 lbs. inch) per pair, covering lighter doors within the medium duty range, so it suits smaller or thinner fronts. The M-Type rating is 95 to 130 kgf.cm (82 to 112 lbs. inch) per pair, taking in somewhat heavier or taller doors that still fall within medium duty use. The H-Type rating is 110 to 160 kgf.cm (95 to 138 lbs. inch) per pair, extending support to higher torque demands inside this family, which is useful when door proportions push the upper side of typical cabinet panels. The S-Type rating is 140 to 180 kgf.cm (121 to 156 lbs. inch) per pair, so it addresses the strongest torque range listed for these stays, helping where flap doors are both tall and heavy. By listing these overlapping ranges, the product information shows how the HDS-10S family scales from lighter to more demanding flap doors while staying within a structured torque framework.
The HDS-10S-ML/WT lid stay is designed for a downward-opening flap door, so it supports doors that pivot down, such as drop-front cabinets or work surfaces.
The HDS-10S medium duty stay is described as self closing and soft closing when pushed toward closed, so it completes the motion while slowing impact at the shut position.
The stay is described for flap doors used with piano, butt, or drop hinges, including drop hinges noted as SDH-001 and SDH-P, so it is intended to pair with those hinge types.
The product is labeled medium duty, indicating it targets common flap door sizes and weights, fitting many standard cabinet and work surface flap applications.
Torque for this stay family is given as Torque = Door Height x 1/2 x Door Weight, which links door dimensions and weight directly to the required torque range.
The HDS-10S family lists K-Type at 60-95, M-Type at 95-130, H-Type at 110-160, and S-Type at 140-180 kgf.cm per pair, covering a spread from lighter to stronger flap doors.
This Sugatsune America medium duty left-hand stay is defined for downward-opening flap doors used with piano, butt, or drop hinges, so it is suited to drop-front cabinet and work surface layouts. The self closing and soft closing behavior when pushed shut adds controlled motion at the end of travel, which benefits installations where repeated opening and closing occurs. The published torque formula and the K-, M-, H-, and S-Type ranges connect door dimensions and weight directly to stay selection, giving a clear framework for matching hardware rating to the flap design. For projects sourcing from Wurth Baer Supply, this part aligns with woodworking-focused cabinet hardware, supporting consistent flap performance across similar openings.