Blum TANDEM 12" Soft-Close Blumotion 7/8 Extension Undermount Drawer Slides, Roller Bearing Zinc - 554H3050B01

Blum TANDEM 12" Soft-Close Undermount Slides

Blum TANDEM 12" soft-close undermount drawer slides use a concealed undermount design, which hides the runners beneath the drawer so the sides stay clean and uninterrupted, giving cabinets a finished look while still supporting the drawer from below. The BLUMOTION soft closing feature controls the closing action, slowing the drawer at the end of travel so it settles gently, which helps reduce slamming and wear in everyday use. These slides provide 7/8 extension, moving the drawer most of the way out while keeping part of the runner engaged, which supports the load as the drawer is opened and closed. Integrated TANDEM smooth running action guides the drawer on roller bearings, so movement stays consistent along the travel. Designed as a Blum, Inc. undermount drawer slide, this unit fits into projects where a professional concealed runner is preferred for residential or commercial cabinetry.

Key TANDEM Undermount Details For Cabinet Work

• The 7/8 extension travel on these slides moves the drawer almost fully out of the cabinet while retaining support, which helps when access is needed without losing the stabilizing effect of the remaining slide engagement.
• The soft closing BLUMOTION feature manages the last part of the closing stroke, which helps the drawer ease into position and can reduce noise and impact on the drawer front and cabinet frame over time.
• The concealed undermount configuration positions the slide beneath the drawer box instead of on the sides, which preserves drawer side aesthetics and creates extra clearance for interior drawer storage solutions.
• The TANDEM smooth running action is supported by roller bearings, which allows the drawer to glide along the track in a controlled way, helpful when drawers are loaded close to the rated capacity.
• The drawer slide is built for 100 lb static load capacity and 75 lb dynamic load capacity, which provides a defined performance range for both at-rest support and moving loads during normal opening and closing cycles.

Mounting Use In Face Frame Or Frameless Cabinets

These TANDEM 12" undermount drawer slides are specified for either face frame or frameless cabinets, so one runner style can be used across different cabinet constructions in the same job. The design works with drawer boxes built with 1/2" (13 mm) to 5/8" (16 mm) drawer thickness, which defines the side material range that will fit correctly on the slide hardware. The 7/8 extension travel is matched to the 12" nominal length, giving a predictable opening dimension that can be factored into cabinet depth planning. The 100 lb static and 75 lb dynamic load ratings give a capacity range that can be aligned with the intended drawer contents, from lighter residential drawers to moderate-duty storage. With a concealed undermount design and BLUMOTION soft closing, these slides offer both functional performance and a clean look in face frame or frameless installations.

Using TANDEM 12" Slides In Real Projects

Where These 12" TANDEM Slides Are Applied

Blum TANDEM 12" soft-close undermount drawer slides are part of the Undermount Drawer Slides product class, so they are suited to projects where concealed runners are preferred over side-mount hardware. Their ability to work in both face frame and frameless cabinets lets installers standardize on one 12" model across kitchen, bath, or utility runs that use different cabinet construction methods. Drawer thickness support from 1/2" (13 mm) to 5/8" (16 mm) allows typical cabinet-grade materials in that range to be used without changing slide type, which can help streamline drawer box construction. The 7/8 extension configuration on this 12" length supports applications where nearly full access is needed from a compact cabinet depth, such as shorter base cabinets or upper cabinets with shallow drawers.

Details That Support Smooth, Repeatable Drawer Action

The TANDEM smooth running action on roller bearings guides the drawer consistently along its travel, which can help each opening and closing cycle feel the same even as drawers are used repeatedly over time. BLUMOTION soft closing is integrated into this TANDEM 12" slide, so the drawer is controlled near the end of travel, which can reduce impact-related adjustments at the face frame or front over the life of the installation. The 100 lb static load capacity indicates how much weight the slide can support when the drawer is at rest, and the 75 lb dynamic load capacity defines performance while the drawer is moving; using these ratings during planning helps match drawers to appropriate storage tasks. This product carries the Blum, Inc. brand and uses manufacturer part 07538582 and model 554H3050B01, which helps align it with existing Blum-based cabinet standards or replacement needs in shops already working with TANDEM undermount slides.

Common Questions About TANDEM 12" Undermount Slides

Selecting This TANDEM Slide For Your Drawers

This TANDEM 12" soft-close undermount drawer slide from Blum, Inc. combines concealed undermount placement, BLUMOTION soft closing, and TANDEM smooth running action, which supports a clean look and consistent movement in use. With support for drawer thickness from 1/2" (13 mm) to 5/8" (16 mm) and suitability for both face frame and frameless cabinets, it fits common cabinet construction approaches. The 7/8 extension and defined 100 lb static and 75 lb dynamic load capacities provide clear performance parameters. For projects built around Blum TANDEM undermount standards, this 07538582 slide gives a defined 12" option to match the intended cabinet layout and drawer function.