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This Amerock concealed bi-fold hinge is built for folding cabinet door panels on frameless cabinets, with a self-close spring and a 135 degree opening angle, sold as a pair.
A bi-fold cabinet door uses two panels hinged at the center: one panel swings outward on the cabinet, the other folds back against it. The 135 degree opening angle on this hinge is what allows the outer panel to swing far enough that the folded pair tucks tightly against the cabinet side, clearing the opening without blocking access. At a tighter angle, the panels would collide with the cabinet front before folding flat. The 35mm cup bores into the back of the door panel, and the hinge screws to a separate base plate mounted to the cabinet side, ordered separately.
The hinge body is plated steel, giving it the rigidity a folding door application needs as both panels move in tandem on every open and close cycle. The nickel finish keeps the hardware looking consistent alongside drawer slides, pulls, and other visible metalwork in the same space. The self-close spring is integrated into the hinge, so no separate closer is needed to return the panels.
This hinge is rated for frameless cabinets, where the door mounts directly to the side panel rather than to a face frame. It suits cabinet shops building appliance garages, tall pantry bi-folds, or any frameless box where folding doors are part of the design. Because bi-fold doors carry two panels per opening, confirm the number of hinge sets your door height and weight require against the manufacturer load guidance before ordering. The mounting plate is a separate purchase; use an Amerock plate matched to this hinge and your cabinet configuration.
A standard concealed hinge swings a single door panel on one arc. This bi-fold hinge is engineered for the geometry of two panels folding against each other, with a 135 degree opening angle that lets the outer panel clear the cabinet face as the pair folds flat.
No. The self-close spring pulls the door panels shut over the last few degrees of travel. It does not cushion or slow the close the way a soft-close damper does. If a damped, quiet close is a requirement, check whether a soft-close bi-fold version is available in this family.
Yes. The hinge body bores into the door and screws to a base plate that mounts to the cabinet side. The plate is sold separately. Use an Amerock plate matched to this hinge series and your frameless cabinet.
Each pair covers one bi-fold door set. The number of hinge pairs per door depends on the door height and weight; check the manufacturer load table for the exact count rather than using a fixed number.
Specify this hinge when a frameless cabinet calls for bi-fold doors that fold flat and return closed without a push, in a finish that holds its own alongside the rest of the hardware.