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This is the left-hand cabinet-mounted profile from Blum's TANDEMBOX drawer system, sized at 500mm (20 inches) nominal length with integrated BLUMOTION soft-close and full-extension travel. It is the cabinet-side running member that mounts to the cabinet wall, accepts the drawer member, and delivers the TANDEMBOX system's damped closing motion.
A TANDEMBOX drawer is built from matched components: cabinet profiles on each wall, a drawer member that rides on the cabinet profile, front fixings, and a back panel, all to the same nominal length. This left-hand profile is the cabinet-wall anchor for the left side of one drawer. It does the structural and motion work — mounting to the cabinet, receiving the drawer member at installation, and engaging the BLUMOTION damper as the drawer closes. The drawer box sides, bottom, and front are separate items the shop cuts to the TANDEMBOX cutting formula for the 500mm nominal length.
Full extension means the drawer travels until the box front clears the cabinet face — the entire drawer interior is accessible without reaching past the cabinet opening. This is the distinguishing travel class in the TANDEMBOX line; 3/4-extension variants exist in other lines, so confirm full extension is what the project requires before ordering.
The profile is formed steel with a zinc-plated finish. Zinc plating on cabinet hardware provides a practical level of corrosion resistance in standard interior environments and gives the profile its characteristic silver-gray appearance inside the cabinet box. The steel construction carries the load the TANDEMBOX system is rated for without flex at the runner-to-drawer-member interface. For finish-matched interiors, this profile works with white or zinc TANDEMBOX components; confirm the cabinet member finish matches across all components in a drawer so the interior looks coherent.
Cabinet shops building TANDEMBOX drawers in quantity keep cabinet profiles on the shelf by nominal length and finish so a drawer can be built without waiting on components. This 500mm profile suits mid-depth base cabinet applications — a standard depth for kitchen base cabinets and many shop-built case pieces. Designers specifying TANDEMBOX for frameless cabinet runs can call out this profile with confidence that the BLUMOTION damping and full-extension travel are built in, not field-added. Renovation contractors replacing an existing TANDEMBOX runner set should confirm the existing system is the TANDEMBOX series, not TANDEM or MOVENTO, before ordering — profiles are series-specific and do not cross over.
This is the cabinet-side member for the left wall — one piece of a complete runner set. You also need the matching right-hand cabinet profile, plus the drawer members (one per side) that attach to the drawer box. Front fixings, back panels, and sides are ordered separately to your nominal length and side height.
BLUMOTION is integrated into this cabinet profile — there is no separate damper to install or retrofit. Every drawer built on this profile closes with damped motion automatically.
No. TANDEMBOX cabinet profiles are matched to the TANDEMBOX series. TANDEM and MOVENTO are distinct Blum systems with different drawer members, locking devices, and front fixings. Parts do not interchange between series.
TANDEMBOX is designed for frameless (European-style) cabinet construction. Face-frame installations require additional rear mounting hardware; check the TANDEMBOX installation documentation for face-frame requirements before specifying for that application.
TANDEMBOX offers several side height options (M, K, C, and others); the compatible side height is determined by the TANDEMBOX drawer members and sides ordered with this profile, not by the cabinet profile alone. Confirm the side height across all components in the set.
Getting the cabinet profile right — correct nominal length, correct hand, correct finish — is what keeps a TANDEMBOX build moving without back-orders or mismatched parts. This left-hand, 500mm, zinc profile with BLUMOTION is a precise call-out for one side of one drawer; order the right-hand mate alongside it and the runner set is complete.
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