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Blum Compact 31C hinge is a concealed cabinet hinge from Blum, Inc. that is part of their Compact hinge line for face-frame applications, so it keeps hardware out of sight while managing overlay and door motion on face-frame cabinets. This model is a 1-1/4 inch overlay hinge, which sets the door to overlay the face frame by that amount, giving a consistent reveal and helping align doors across a run of cabinets. The hinge is self-close, so the spring action pulls the door shut at the end of travel, which is useful for keeping doors closed without additional catches. It is a concealed face frame hinge, so it mounts within the cabinet structure and door rather than on the surface, which supports a clean, finished look on visible cabinetry runs.
This concealed cabinet hinge is identified as a 1-1/4 inch overlay compact hinge in the SAP description, so it is intended for overlay face-frame layouts where the door overlays the frame by that dimension. The hinge is doweled, as indicated in the SAP description, so it is designed for mounting using dowels at the hinge cup area, which supports repeatable placement in production boring setups and consistent cup alignment. With 7/16 inch cup depth noted in the web description, the required bore depth is clearly defined, helping installers plan boring operations on doors. The hinge is classified under concealed face frame hinges, so it is intended for cabinets using face frames rather than frameless construction, aligning the product to that construction method during layout.
This Blum compact 31C self-close 1-1/4 inch overlay face-frame hinge is described as ideal for profiled doors in the web description, so it suits door designs where the inside profile still allows the specified cup depth and bore position. Being a concealed cabinet hinge in the Concealed Face Frame Hinges category, it is oriented to applications where the hinge should remain hidden when the door is closed, which is common in kitchen, bath, or built-in cabinetry. The nickel reference in the product name indicates a nickel finish on the hinge, which provides a consistent metallic appearance on the hardware and aligns with other nickel cabinet components in a project. With 105 degree noted in the product name, the hinge is set up for an approximate 105 degree opening angle, providing sufficient access to cabinet interiors while controlling door swing so it stays within typical face-frame layouts.
This Blum hinge uses three dimensional cam adjustment as called out in the web description, so the hinge offers cam-based adjustment in three axes, letting installers shift the door up or down, in or out, and side to side for accurate alignment across multiple doors. That adjustment in the hinge body is valuable during install because minor case or door variances can be corrected at the hinge rather than remaking parts. The integrated BLUMOTION in the hinge cup delivers a controlled closing action, which manages the final portion of door travel at the hinge, supporting a smoother close on face-frame cabinets. When used with small or light doors, the deactivation switch for BLUMOTION allows the damping to be turned off on that hinge, which maintains predictable motion on lighter doors. The overload safety feature in the hinge supports the mechanism when higher forces are applied, helping the hinge continue to function in regular cabinet use. The self-close function works with these features to pull doors shut, contributing to uniform door resting positions along a bank of cabinets.
The Blum Compact 31C hinge is in the Concealed Face Frame Hinges category, so it is aimed at face-frame cabinet construction where the hinge mounts to a face frame.
This hinge is described as a 1-1/4 inch overlay compact hinge, so it is set up so the door overlays the face frame by approximately 1-1/4 inch in typical layouts.
The product name notes 105 degree, indicating this hinge is designed for an approximate 105 degree door opening, giving good cabinet access while limiting door swing.
This hinge has BLUMOTION integrated into the hinge cup, so closing action is damped at the hinge, providing controlled, managed door closing on compatible cabinet doors.
The hinge has a deactivation switch for small or light doors, allowing BLUMOTION to be switched off on those doors so damping does not slow the closing excessively.
This hinge offers three dimensional cam adjustment, so door position can be tuned in three directions at the hinge to refine reveals and alignment after installation.
The Blum Compact 31C hinge with 1-1/4 inch overlay, BLUMOTION in the hinge cup, and three dimensional cam adjustment is built for concealed face-frame cabinet work where controlled motion and alignment are important. The doweled cup design and 7/16 inch cup depth help plan boring and mounting steps in shop or on site. For projects needing self-close action, integrated damping, and defined overlay on face-frame cabinets, this hinge aligns with those requirements and supports consistent door performance across a run.
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