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HBF BI-FOLD LIFT MECHANISM 7-9 LBS is a lift assist mechanism from Sugatsune America designed for upward-opening flap doors, so it supports bi-fold fronts that need smooth, controlled lifting. The lift assist feature makes flap doors feel lighter, which reduces effort when opening and gives a more controlled motion on heavier fronts in the 7 to 9 lbs range. This mechanism is part of the HBF-ELAN-ML series, tying it directly to a known specification for flap door projects. It incorporates free stop functionality, holding the flap position at any angle from 50 degrees to fully open, which lets you position the door exactly where you want it during use without it drifting. Integrated soft-closing slows the closing speed between 0 degrees and 40 degrees, helping prevent slamming against the cabinet and reducing impact on both the door and case over time.
This Sugatsune America bi-fold lift assist mechanism is built for upward-opening flap doors, so it is suited to wall cabinets or overhead units using that motion. The opening angle is easy to adjust, which lets you tailor how far the flap opens to match adjacent cabinets or ceiling clearances on the job. It must be used together with a concealed hinge that has an appropriate opening degree, aligning the hinge geometry and the lift mechanism for smooth, predictable travel. Fast installation is supported through a vertical adjustment function on the mounting plate located on the flap, allowing fine-tuning of the flap position after mounting so reveals and front alignment can be dialed in. Installation is described as simple using the template, which guides layout so hole positions and mechanism placement match the engineered motion path.
The bi-fold lift assist mechanism anodized light gray 7-9 lbs is specified for upward-opening flap doors, so it fits cabinet designs where the front lifts up and away instead of swinging on a side hinge. Its 7 to 9 lbs rating aligns with flap door assemblies in that weight range, letting the lift assist feature support the front so it feels lighter to operate. The mechanism is positioned in the Lift Systems, Lid Supports and Stays category, reflecting its role in supporting and controlling overhead or flap fronts rather than traditional side-hinged doors. For upward-opening applications, the free stop function from 50 degrees to fully open lets the door stay open partway or fully, which helps when the cabinet is above a work surface and you want to keep the door out of the way while still reachable. The light gray anodized mechanism can sit within modern cabinet interiors where a neutral hardware color is desired.
The easy adjustment of the opening angle on this HBF-ELAN-ML mechanism lets installers tune door travel so multiple cabinets line up at the same open position, creating consistent head clearance and visual alignment. Because it must be used with a concealed hinge with an appropriate opening degree, hinge selection and mechanism setup work together, supporting a repeatable motion profile across a run of similar cabinets. The vertical adjustment function on the mounting plate at the flap side allows final tuning of fascia height and reveals after the hardware is mounted, reducing rework when aligning neighboring fronts. Soft-closing behavior from 0 degrees to 40 degrees slows the last part of the closing stroke, which protects front edges during daily use and can extend finish life under regular opening and closing. The mechanism having passed 30,000 open and close cycles in a private test demonstrates the lift assist, free stop, and soft-closing actions were exercised repeatedly, providing confidence for projects expecting frequent operation. Fast installation supported by that mounting plate adjustment and the mentioned template helps streamline repetitive cabinet runs, where consistent placement of the lift mechanism contributes to uniform performance across multiple doors.
The bi-fold lift assist mechanism is for upward-opening flap doors, so it suits wall or overhead cabinets where the door lifts up rather than swinging sideways.
The HBF BI-FOLD LIFT MECHANISM 7-9 LBS is rated for doors in the 7 to 9 lbs range, aligning its lift assist with flap assemblies of that approximate weight.
The free stop holds the flap at any angle from 50 degrees to fully open, allowing the door to stay in a chosen position and keeping it stable during access to the cabinet.
The soft-closing feature slows the door between 0 degrees and 40 degrees, which reduces slam impact and helps protect the cabinet and door edges during closing.
The easy opening angle adjustment lets installers set how far the flap opens, helping coordinate clearances and appearance across multiple upward-opening cabinets.
The mechanism must be used with a concealed hinge with an appropriate opening degree so hinge geometry and lift action work together for smooth, controlled flap motion.
The Sugatsune America bi-fold lift assist mechanism anodized light gray 7-9 lbs combines lift assist, free stop, and soft-closing functions for upward-opening flap doors, supporting controlled movement in the 7 to 9 lbs range. Its easy opening angle adjustment and vertical adjustment on the mounting plate give you fine control over final door position and open height, which matters when aligning multiple cabinets or matching site clearances. The mechanism having passed 30,000 open and close cycles in a private test shows its lift and control features were exercised repeatedly under motion. For projects using concealed hinges with an appropriate opening degree, this HBF-ELAN-ML mechanism provides a coordinated way to manage flap motion and close behavior in overhead cabinet applications.
