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This is the right-hand front locking device for Blum TANDEM 563 and 569 series undermount slides, with built-in side adjustment to fine-tune the drawer front after installation. One device mounts under the right side of the drawer box front, locking the drawer onto the slide and holding its position on the rail.
On a run of kitchen drawers, even a fraction of a millimeter of reveal variation reads as misalignment across the whole stack. The side adjustment on this locking device lets an installer walk along the bank and dial each front into position without swapping hardware or shimming. That same capability matters during a cabinet replacement or refacing job, where new fronts rarely drop in perfectly on the first hang. The +/- 1.5 mm of lateral travel is enough to correct the gap without touching the cabinet box.
Height adjustment works in tandem: once the side position is right, a small turn brings the front flush with the drawer above or below it. Both adjustments happen at the installed device, with the drawer front already mounted.
The device is plastic, which is standard for Blum front locking hardware — the material keeps weight low and does not scratch the slide rail during installation or adjustment. The locking geometry is specific to the TANDEM 563 and 569 series. If your project uses MOVENTO slides, LEGRABOX, or any other Blum undermount platform, this device will not seat correctly; Blum engineers each locking system to its own runner profile.
Cabinet shops running TANDEM slides through production need a steady supply of locking devices on hand, since each drawer requires a left-hand and a right-hand device. This right-hand version suits shops that stock the two orientations separately and pull from inventory by hand. Installers who adjust fronts on-site after delivery also reach for the side-adjustment model over the non-adjustable version — the time saved at final trim justifies the minor cost difference. Designers specifying a flush-inset or tight-reveal layout will want the adjustment range that this device provides.
Yes — it is rated for both the 563 and the 569 TANDEM series undermount slides. It is not compatible with other Blum slide lines.
One drawer needs one right-hand device and one left-hand device. This listing is for the right-hand member only; order the corresponding left-hand version separately to complete the pair.
Yes. The side and height adjustments are accessible on the installed device, so you can fine-tune the front position with the drawer in place and in use.
The locking device itself is the same regardless of cabinet construction. In a face-frame install, the TANDEM slide requires rear mounting brackets to support the back of the slide — the locking device at the front is unchanged.
Yes, Blum makes a standard locking device for the TANDEM series without the lateral adjustment feature. If your fronts are set during production and do not need on-site correction, the non-adjustable version may suit your workflow.
A single locking device with built-in side adjustment gives the installer the ability to correct reveals at the finish stage, without reopening the box or pulling the slide — which is exactly where fine-tuning belongs in a professional install.
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