Order by 24/7 by web, contact our sales reps or call by phone.
What you need, when you need it, all in one place.
Most orders ship same day.
Advice and support from knowledgeable professionals.
Sugatsune lid stay for downward-opening flap doors is a medium duty stay that controls a flap using a soft-closing motion, so the door closes in a controlled way instead of dropping. Designed for downward-opening flap doors, it supports work surfaces or cabinet fronts that pivot down, which keeps the motion consistent on every use. This left-hand model is part of the HDS-10S series, so it fits jobs that call for that specific Sugatsune layout and operation. It is used in pairs, so one stay is mounted on each side of the door, which balances the load on the flap and the hinges. The stay is described as black plastic and steel, so key components combine metal strength with a black exterior, which helps when matching dark hardware or visible interiors in built-ins and furniture.
The torque calculation is given as Torque = Door Height x 1/2 x Door Weight, which ties flap size and mass directly to hardware selection, so the chosen stay type can match a target torque range. The data lists K-Type, M-Type, H-Type, and S-Type ranges in kgf.cm and lbs.inch per pair, so each type corresponds to a specific torque window, which guides which series version belongs on a given flap. The left orientation of this HDS-10S-ML/BLK matters because it defines which side of a downward-opening door receives this unit, so door layout and hinge locations can be planned around that handed stay.
The SAP description specifies this as a downward opening, medium duty, left, black stay, so it is aimed at flaps that swing down under moderate loads where appearance and handed installation matter. Being designed for Downward-Opening Flap Doors used with piano, butt or drop hinges means it shares movement with continuous or individual hinges, so the stay handles the control while the hinge line carries the pivot. The K-Type through S-Type torque ranges, given in kgf.cm and lbs.inch per pair, tie into applications from lighter to heavier fronts, so selecting within those ranges helps the flap travel in a controlled way instead of feeling either too stiff or too loose. Because it is used in pairs, its working role is as one of two coordinated stays on a flap, so each side supports part of the torque, which helps keep the door level through its travel on wider fronts.
The description states that when pushed to close, HDS-10S is designed to self close and soft close, so once the flap is moved toward the cabinet, the mechanism completes and cushions the closing, which can reduce slap at the frame and stress on hinges. The torque ranges given for K-Type, M-Type, H-Type, and S-Type in both kgf.cm and lbs.inch per pair provide defined performance bands, so once the door height and weight are known, the resulting torque can be matched to a series, which supports predictable motion across multiple similar cabinets. Identifying this model as medium duty positions it between light and heavy applications, so it targets everyday flap doors rather than extremely small fronts or very heavy panels, which can simplify standardizing on one family for common casework runs.
This Sugatsune lid stay is designed for a downward-opening flap door, so it suits fronts that pivot down rather than up, working alongside piano, butt, or drop hinges to control that motion.
The HDS-10S design self closes and soft closes when pushed, so the mechanism pulls the flap through the final travel and cushions it, which reduces abrupt contact at the cabinet structure.
This lid stay is specified for use in pairs, so two units share the torque on the flap, which balances support on both sides and aligns performance with the published torque ranges.
The SAP description calls this a medium duty stay, so it is aimed at flap doors with moderate weight and size, fitting many standard downward-opening fronts rather than extreme light or heavy cases.
Torque for this system is given as Door Height x 1/2 x Door Weight, so door dimensions and weight determine torque, which can then be compared to the K, M, H, or S type ranges.
The K, M, H, and S types each have listed torque ranges in kgf.cm and lbs.inch per pair, so they indicate which stay version matches the torque calculated for a particular flap door.
This Sugatsune lid stay as described by Wurth Baer Supply combines medium duty support with self-closing, soft-closing action for downward-opening flap doors, so it serves jobs where controlled closing and defined torque matching are important. The left-hand HDS-10S-ML/BLK configuration with listed torque ranges across multiple types helps align flap dimensions, hinge choice, and stay performance on casework, furniture, or work surface fronts. For projects needing coordinated motion on downward-opening flaps, this stay offers a defined torque calculation method and series options to match calculated loads.