21" Undermount Soft Close Drawer Slides with 3D Locking Devices and Rear Bracket
21" Undermount Soft Close Drawer Slides with 3D Locking Devices and Rear Bracket
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Description
LONTAN 21-Inch Concealed Undermount Drawer Slides – 100 lbs Capacity
Upgrade your cabinetry with the seamless performance of LONTAN Heavy-Duty Undermount Drawer Slides. Engineered to be completely hidden beneath the drawer box, these rails deliver a clean, high-end look while maximizing safety and smooth movement. Equipped with an integrated hydraulic dampening system, they prevent slamming and ensure a quiet, soft-close transition every single time.
Cabinet & Frame Compatibility Matrix
| Cabinet Type | Installation Method | Required Components |
|---|---|---|
| Frameless (Panel) | Direct Side-Mount Installation | Slides + 3D Clips (Included) |
| Face Frame (Framed) | Rear Wall & Front Frame Mount | Slides + 3D Clips + Rear Brackets (All Included) |
Key Hardware Features
- Hydraulic Soft-Close Mechanism – Features a built-in fluid damper that catches the drawer and gently pulls it shut, reducing noise and extending furniture life.
- Full Extension Optimization – Three-section telescope design allows the drawer to open fully, providing 100% unrestricted access to the deepest corners.
- 3D Adjustable Locking Devices – Front locking clips allow effortless, tool-free adjustment of the height, depth, and side-to-side alignment of the drawer front.
- Galvanized Alloy Steel – Heavy-duty construction with a glossy zinc-plated finish ensures reliable rust protection and a robust 100 lb weight rating.
- Concealed Bottom-Mount Aesthetics – Completely hidden from view when the drawer is open, preserving the look of premium wood boxes.
Technical Specifications
| Specification | Details |
|---|---|
| Brand / MPN | LONTAN / SL0345SL21 |
| Slide Length | 21 Inches (533 mm) |
| Load Capacity | 100 lbs (45 kg) Dynamic Load |
| Material | High-Grade Galvanized Alloy Steel |
| Mounting Type | Under-Mount / Concealed Bottom Rails |
| Adjustment Range | 3D (Up/Down, Left/Right, In/Out) |
| Package Contents | 1 Pair of Slides, 2x 3D Clips, Rear Brackets, Mounting Screws, Manual |
Installation Guide Summary
Suitable for professional woodworkers and DIY renovators alike:
- Measurement: Verify your drawer box length is exactly 21 inches and that you have a 1/2" (12.7mm) clearance on both sides of the drawer inside the cabinet.
- Pre-Drilling: Drill the necessary rear hooks holes into the back panel of your wood drawer box as specified in the manual.
- Mounting Rails: Install the rails inside the cabinet. For Face Frame layouts, secure the included rear mounting brackets to the back wall first.
- Clip Attachment: Screw the 3D adjustable locking clips onto the front bottom corners of the drawer box.
- Engagement: Slide the drawer box onto the tracks until it automatically snaps into the front clips. Fine-tune your gaps using the 3D thumbwheels.
Why Choose LONTAN?
LONTAN is dedicated to producing reliable, trade-ready cabinet hardware. The SL0345SL21 Undermount Set provides the exact premium feel of high-end European hardware at an accessible price. With everything included in one box—including the hard-to-find rear brackets—you can smoothly execute your kitchen, bathroom, or office desk renovation with confidence.
Bring premium, whisper-quiet luxury to your cabinets—Order your LONTAN Slides today!
Brand: LONTAN
Type: Full Extension
Closing Type: Soft Close
Color: Silver
Number in Pack: 1 Pair
Style: Modern
Material: Alloy Steel
MPN: SL0345SL21
Item Length: 21 in
Country of Origin: China
