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HDS-10S-KL/BLK lid stay from Sugatsune America is a light duty, left-hand support designed for a downward-opening flap door. It works with piano, butt, or drop hinges such as SDH-001 and SDH-P, so it fits typical flap door hinge layouts on workstations and cabinets. The stay is part of Sugatsune's lid supports and stays line, giving a controlled motion to the flap instead of a free drop that can strain hinges. When the flap is pushed toward the closed position, the HDS-10S mechanism is designed to self-close and soft close, which helps pull the door in and reduces slamming at the end of travel. This soft-closing action reduces impact on the hinges and face frame over repeated use and keeps movement controlled for users working around the open flap.
This Sugatsune America lid stay is intended to be used in pairs on a downward-opening flap door, so both sides share the load and keep the movement balanced. The torque calculation, defined as Torque = Door Height x 1/2 x Door Weight, ties door dimensions directly to selection, helping match the K-type, M-type, H-type, or S-type ranges to the actual flap. K-type works between 60 and 95 kgf.cm per pair, M-type between 95 and 130 kgf.cm per pair, H-type between 110 and 160 kgf.cm per pair, and S-type between 140 and 180 kgf.cm per pair. These ranges describe how much moment the pair can handle, which affects how firmly the stay controls the door through its swing.
This light duty, left-hand lid stay is suited to downward-opening flap doors on work surfaces, tables, and cabinets, matching its product class as a lid support and stay. Its use with piano, butt, or drop hinges such as SDH-001 and SDH-P lets it integrate into flap fronts that pivot along the bottom edge. Because it is for downward-opening flaps rather than lift-up lids, it supports fronts that fall toward the user, such as drop-front workstations or access panels. The black plastic and steel construction matches the described finish, so the visible components blend with darker hardware while the steel elements provide the structural function in the mechanism.
The self-close and soft-close design of the HDS-10S series means that, once the user pushes the flap toward shut, the stay takes over to pull it in and slow it at the end of travel, which moderates closing speed during repeated use. Using the stated torque equation of Torque = Door Height x 1/2 x Door Weight aligns door size and mass with the K, M, H, or S torque types, so the selected pair operates in the intended range. K-type at 60 to 95 kgf.cm per pair suits lighter flaps, while M-type at 95 to 130 kgf.cm per pair covers mid-range weights within light duty demands. H-type at 110 to 160 kgf.cm per pair and S-type at 140 to 180 kgf.cm per pair extend that control to heavier fronts, keeping the soft-close behavior effective. Matching the door torque into these ranges keeps motion controlled rather than abrupt, helping limit stress on both hinges and the stay over time.
The HDS-10S-KL/BLK lid stay is designed for a downward-opening flap door, so it supports fronts that pivot downward instead of lifting up.
The HDS-10S lid stay is used in pairs on a downward-opening flap door, so both sides share the load and keep the motion stable across the width.
This stay is described for use with piano, butt, or drop hinges, specifically mentioning SDH-001 and SDH-P, so it fits common hinge styles on flap doors.
The HDS-10S lid stay is designed to self close and soft close when the flap is pushed, pulling it shut and reducing slamming at the end of travel.
Torque for this stay is defined as Torque = Door Height x 1/2 x Door Weight, which links door size and weight to the required torque range per pair.
K-type covers 60-95 kgf.cm per pair, M-type 95-130 kgf.cm per pair, H-type 110-160 kgf.cm per pair, and S-type 140-180 kgf.cm per pair for this lid stay family.
Sugatsune America HDS-10S-KL/BLK lid stay offers soft-closing control for a downward-opening flap door, working alongside piano, butt, or drop hinges such as SDH-001 and SDH-P. Its light duty, left-hand design, paired operation, and defined torque ranges let you match the stay to your door height and weight using the stated torque formula. For downward-opening fronts where managed closing and reduced impact are priorities, this lid support provides a clearly defined torque structure and soft-close function to support repeatable hardware performance.