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The TY303D series is a concealed undermount drawer slide system designed for furniture manufacturing and commercial cabinet projects. Installed beneath the drawer box rather than on the sides, this runner remains fully hidden when the drawer is closed, delivering a clean exterior appearance for cabinetry products. The integrated hydraulic soft-closing mechanism slows the drawer during the final segment of closing and brings it to a silent, controlled stop. Full extension travel allows complete access to the entire drawer interior, which increases usable storage space for end users.
Each set includes left and right slides with plug-style locking components, compatible with both 16mm and 19mm standard board thicknesses. This dual-compatibility design allows furniture producers to consolidate component inventory across multiple product lines. The slides are manufactured from galvanized steel and rated for a 35kg load capacity per pair, tested with evenly distributed weight. Length options span from 250mm to 600mm across eight standard sizes, covering most residential and light commercial drawer applications.
Item no. | Nominal slide length | Drawer length | Inner cabinet depth | Regulate screw hole site A |
TY303D-250 | 260mm | 250mm | 263mm | 206mm |
TY303D-300 | 310mm | 300mm | 313mm | 256mm |
TY303D-350 | 360mm | 350mm | 363mm | 306mm |
TY303D-400 | 410mm | 400mm | 413mm | 356mm |
TY303D-450 | 460mm | 450mm | 463mm | 406mm |
TY303D-500 | 510mm | 500mm | 513mm | 456mm |
TY303D-550 | 560mm | 550mm | 563mm | 506mm |
TY303D-600 | 610mm | 600mm | 613mm | 556mm |
Drawer front mounting holes measure φ6mm with 15mm depth (φ6 H15) and φ8mm with 9mm depth (φ8 H9). Side mounting holes measure φ6mm with 11mm depth (φ6 H11). Key dimensional references include 20mm setback from the front edge, 5mm and 6mm vertical offsets, 11.5mm horizontal spacing, 7mm depth, 33mm rear spacing, and 13mm bottom offset.
For cabinet fitment calculations, drawer net width (DW) equals cabinet inner width (CW) minus 42mm for 16mm boards, or minus 49mm for 19mm boards. Maximum side clearance is 13mm, with a minimum 6mm gap required. Vertical dimensions include 27.5mm total height, 37mm mounting depth, 21mm front profile (24.5mm for 19mm board), and 6.5mm and 7mm internal component offsets.
Drilling hole positions along the slide length follow a consistent pattern: 4mm from the front edge, 37mm to the first hole group, then repeated 128mm, 96mm, and 96mm intervals corresponding to each 50mm length increment. Both standard (external) drawer and inner drawer mounting configurations are supported, with the inner drawer setup requiring an additional X-dimension offset of X+37mm depth adjustment.
The TY303D runner is constructed from galvanized steel sheet, which provides corrosion resistance for indoor furniture environments. The galvanized finish maintains a consistent silver-gray appearance across production batches. The slide body incorporates a triple-rail telescopic structure that enables full extension travel while maintaining lateral stability.
The soft-closing damper is housed within the rear section of the fixed rail, engaging automatically during the final portion of the closing stroke. The plug-style locking mechanism secures the drawer to the slide with a positive-locking action, preventing accidental disengagement during normal use. Height adjustment is available via the regulate screw hole position, allowing installers to fine-tune drawer alignment after mounting.
This undermount slide series serves furniture manufacturers producing kitchen cabinets, bathroom vanities, bedroom wardrobes, and office storage units. The concealed installation supports handle-integrated and recessed-handle drawer designs, making it suitable for contemporary and minimalist furniture lines. Kitchen and bathroom cabinet producers use these slides for cutlery trays, utensil drawers, and under-sink storage where full access to the drawer interior improves functional value.
For commercial procurement teams sourcing components for mid-volume furniture assembly, the 16mm/19mm dual compatibility reduces the number of separate part numbers that must be stocked and managed. The standardized hole pattern supports automated drilling setups in factory production environments. Projects including hotel room case goods, apartment cabinetry packages, and office filing systems all represent typical deployment scenarios for this slide model.
Installation begins with marking and drilling the cabinet side panels according to the specified hole pattern for the selected slide length. The fixed rail mounts to the inner cabinet sides using the pre-punched hole groups, secured with appropriate screws for the panel material. The drawer member attaches to the underside of the drawer box using the front and rear mounting hole positions.
Once both components are secured, the drawer engages with the cabinet slides via the plug locking mechanism. Final adjustment of drawer front alignment is performed through the regulate screw position, which allows vertical fine-tuning. For inner drawer installations, add the X-dimension offset to both the cabinet depth calculation and the slide mounting position. After installation, test the full extension travel and soft-closing action to confirm smooth operation across the complete stroke.
The TY303D series is designed for 16mm and 19mm drawer side panels, which are the two most common thickness standards in furniture manufacturing. Different mounting clip positions accommodate each thickness.
The rated load capacity is 35kg per pair of slides, tested with evenly distributed weight under standard cycling conditions. Actual performance depends on proper installation and drawer construction.
Refer to the inner cabinet depth (CD) value listed for each slide model in the size chart. For example, the TY303D-400 requires a minimum cabinet depth of 413mm. Always verify against the specific length selected for your project.
Yes, the slides support both external (standard) drawer mounting and inner drawer configurations. Inner drawer installation requires an additional depth offset, with the mounting position shifted by the X dimension plus 37mm.
