1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your LONTAN 18 Inch Undermount Soft Close Drawer Slides. These slides are designed for full extension, offering complete access to your drawer contents, and feature a soft-close mechanism for quiet and smooth operation. Please read these instructions carefully before installation and retain them for future reference.
2. Product Features
- Soft Close & Full Extension: Equipped with a hydraulic damper for a soft-close effect, ensuring smooth and quiet drawer operation. The full extension design allows complete access to the entire drawer.
- Durable Material: Constructed from high-quality galvanized steel, providing heavy-duty performance and durability with a load-bearing capacity of 100 lbs.
- Concealed Design: The undermount design hides the slides beneath the drawer, enhancing the aesthetic appeal of your furniture and improving safety.
- Adjustable Locking Device: Features an adjustable locking device for secure drawer retention.
- Hook for Fixing Drawer: A practical hook design ensures the drawer remains stable during opening and closing, preventing inward sliding.



3. Safety Information
- Always wear appropriate personal protective equipment (PPE) such as safety glasses during installation.
- Ensure the cabinet structure is stable and capable of supporting the drawer and its contents, in addition to the slide's weight capacity.
- Keep small parts and tools away from children to prevent choking hazards.
- Do not overload drawers beyond the specified 100 lb capacity.
- Exercise caution when operating power tools.
4. Package Contents
Each package typically includes:
- 1 Pair of LONTAN 18 Inch Undermount Soft Close Drawer Slides
- Adjustable Locking Devices (Left and Right)
- Mounting Screws

5. Installation (Setup)
Proper installation is crucial for optimal performance. While detailed instructions are provided with the product, here are key considerations:
- Measure Carefully: Ensure the nominal slide length (18 inches / 457mm) matches your cabinet depth. The drawer length (SKL) should be approximately 17.99 inches (457mm).
- Drawer Dimensions: The width of the drawer sides should be approximately 1/2 inch. The bottom of your drawer requires a 1/2 inch space for the slides to rest on.
- Cabinet Type: These slides are compatible with both face frame and frameless cabinet types. Refer to the diagrams below to identify your cabinet type.
- Mounting: The slides are designed for bottom mounting. Secure the cabinet member of the slide to the cabinet interior and the drawer member to the underside of the drawer.
- Attach Locking Devices: Install the adjustable locking devices to the front underside of the drawer, ensuring they align with the corresponding slots on the slide.
- Insert Drawer: Carefully align the drawer with the installed slides and push it in until the locking devices engage.



6. Operation
To operate the drawer slides:
- Opening: Pull the drawer gently to extend it fully. The full extension feature allows complete access to the drawer's contents.
- Closing: Push the drawer inward. As it approaches the closed position, the hydraulic soft-close mechanism will engage, slowly and quietly pulling the drawer shut without slamming.


7. Maintenance
To ensure the longevity and smooth operation of your LONTAN drawer slides:
- Cleaning: Periodically wipe the slides with a clean, damp cloth to remove dust and debris. Avoid abrasive cleaners.
- Lubrication: Lightly lubricate the moving parts with a silicone-based lubricant if you notice any stiffness or friction. Do not use oil-based lubricants as they can attract dust.
- Inspection: Regularly check all mounting screws to ensure they are tight. Re-tighten if necessary.
8. Troubleshooting
- Drawer not closing smoothly:
- Check for obstructions in the slide mechanism.
- Ensure the drawer is not overloaded beyond the 100 lb capacity.
- Verify that the slides are properly aligned and securely mounted.
- Apply a silicone-based lubricant to the moving parts.
- Drawer sticking or difficult to open:
- Inspect for debris or foreign objects within the slide tracks.
- Check for any bent or damaged parts of the slide.
- Ensure the drawer box itself is not warped or binding against the cabinet opening.
- Drawer wobbles or feels loose:
- Tighten all mounting screws on both the cabinet and drawer members.
- Ensure the drawer box is constructed squarely and rigidly.
9. Specifications
| Feature | Specification |
|---|---|
| Brand | LONTAN |
| Model Number | Undermount-2 |
| Size | 18 inch (457mm) |
| Mounting Type | Under Mount |
| Weight Limit | 100 Pounds |
| Material | Alloy Steel (Galvanized) |
| Finish Type | Steel |
| Extension Type | Full Extension (3-Section) |
10. Warranty and Support
LONTAN is committed to quality and customer satisfaction. If you encounter any quality problems with your drawer slides, please contact LONTAN customer service. Replacements or other solutions will be provided to ensure your satisfaction.
For further assistance, please refer to the contact information provided with your purchase or visit the official LONTAN website.