Blum TANDEM 18" Soft-Close Blumotion 7/8 Extension Undermount Drawer Slides, Roller Bearing Zinc - 554H4570B01

Blum TANDEM 18 Inch Undermount Drawer Slides

Blum TANDEM 18 inch undermount drawer slides are concealed drawer slides designed for face frame or frameless cabinets, so the hardware stays out of sight while supporting smooth drawer travel. The 18 inch length defines the drawer depth they support, which matters when matching slides to cabinet and drawer box dimensions. Their 7/8 extension travel allows most of the drawer to open for access while keeping part of the drawer supported inside the cabinet. A BLUMOTION soft closing feature slows the drawer at the end of travel, which helps drawers close gently in everyday use. The TANDEM smooth running action uses a roller bearing design, which supports consistent opening and closing along the slide length. These slides are part of the Blum TANDEM undermount drawer slides product class, which means they sit under the drawer instead of on the sides, leaving cabinet interiors cleaner and giving more design flexibility.

Key Blum TANDEM Details For Cabinet Projects

• The 7/8 extension concealed drawer slides move most of the drawer out of the cabinet while keeping the mechanism hidden, which supports clean cabinet interiors and straightforward access to stored items.
• Use in face frame or frameless cabinets lets one slide type support different cabinet constructions, which simplifies product selection across projects that mix both cabinet styles.
• A 1/2 inch (13 mm) to 5/8 inch (16 mm) drawer thickness range defines the side material these slides are designed to work with, which guides drawer box construction for proper fit on the undermount hardware.
• The BLUMOTION soft closing function slows the drawer at the end of travel, which reduces drawer slamming and supports quieter operation in kitchens, baths, or shop cabinets.
• TANDEM smooth running action with a roller bearing zinc construction supports even travel under load, which helps drawers feel consistent from empty conditions up to their rated capacity.
• A 100 lb static load capacity and 75 lb dynamic load capacity define how much the slides are rated to support at rest and in motion, which helps match them to storage demands in heavier-use cabinet drawers.

Undermount Slide Fit, Load, And Extension Details

These undermount drawer slides are designed as concealed drawer slides, so they mount under the drawer and support a cleaner finished appearance compared to side-mount slides. Their 18 inch length sets the basic cabinet and drawer box sizing, which is important when planning drawer depths relative to overall cabinet depth. The 7/8 extension travel provides substantial access while maintaining support inside the cabinet, which can be useful where full extension is not required. Drawer thickness between 1/2 inch (13 mm) and 5/8 inch (16 mm) defines the drawer side dimensions that work with this system, which helps align material selection with the slide design. The specified 100 lb static load capacity and 75 lb dynamic load capacity describe how these slides handle stored weight, which matters when assigning them to drawers that may carry heavier contents.

Using These Blum Slides In Real Cabinet Work

Where These Undermount Drawer Slides Perform Best

These Blum TANDEM 18 inch soft-close Blumotion 7/8 extension undermount drawer slides are specified for face frame or frameless cabinets, which positions them for use across kitchen, bath, and shop cabinetry built with either construction. The concealed drawer slides configuration keeps hardware hidden under the drawer, which supports cabinet designs that prioritize a clean interior and finished side panels. Their drawer thickness range of 1/2 inch (13 mm) to 5/8 inch (16 mm) aligns with common plywood and solid stock thicknesses for drawer sides, which fits typical woodworking materials. BLUMOTION soft closing action slows the drawer at the end of travel, which supports use in spaces where quieter operation is valued. The combination of 100 lb static and 75 lb dynamic load capacity allows these slides to support drawers that carry typical household or shop loads within these ratings. The TANDEM smooth running action and roller bearing zinc design support even movement along the slide path, which helps drawers feel consistent from day-to-day use.

Details That Support Consistent Drawer Performance

The 7/8 extension concealed drawer slides design defines how far the drawer projects from the cabinet, which influences how easily contents can be reached without fully leaving the cabinet cavity. By using an undermount format, these slides leave the drawer side panels unobstructed, which can simplify fitting drawer fronts and maintaining uniform reveals. The 1/2 inch (13 mm) to 5/8 inch (16 mm) drawer thickness requirement provides a clear construction target, which supports repeatable drawer builds that align properly with the hardware. BLUMOTION soft closing is integrated into the slide system, which means the closing action is managed at the slide rather than relying on separate mechanisms. The TANDEM smooth running action working with roller bearing zinc components supports stable movement, which can help reduce drawer racking during opening and closing within the load ratings. Together, the specified extension, load capacities, and drawer thickness range outline a clear window for designing and installing drawers around this Blum undermount system.

Common Questions About Blum TANDEM 18 Inch Slides

Selecting These Slides For Your Next Drawer Run

The 18 inch TANDEM Edge undermount slide configuration, BLUMOTION soft closing, and 7/8 extension define how these Blum slides behave in daily use, which matters when aligning performance expectations with cabinet design. Their support for both face frame and frameless cabinets allows one slide choice to serve different construction styles. The specified drawer thickness range of 1/2 inch (13 mm) to 5/8 inch (16 mm) and defined load capacities give clear build and application boundaries. For projects where concealed undermount hardware, soft closing action, and rated support up to 75 lb dynamic load are priorities, this Blum TANDEM 18 inch undermount drawer slide offers a focused combination of traits for planning new drawers or upgrades.