1. Product Overview
The OCG Soft Close Undermount Drawer Slides are designed to provide smooth, full-extension operation for drawers, ensuring quiet and gentle closing. Constructed from high-grade galvanized steel, these slides are suitable for both face frame and frameless cabinets, making them ideal for new installations or replacements.
2. Product Features
- Soft Close and Full Extension: Allows for the entire drawer to be accessed and ensures drawers close softly and silently.
- Durable Construction: Made from high-grade Galvanized steel, rated for heavy-duty use (loads up to 75 lbs).
- Versatile Compatibility: Intended for use with Face Frame or Frameless Cabinets. Compatible with most major drawer and cabinet types (undermount).
- Adjustable Locking Device: Provides flexibility for drawer front alignment.
- High Performance Hydraulic Rod: Integrated for reliable soft-closing functionality.

Image: OCG Soft Close Undermount Drawer Slides installed in a kitchen drawer, demonstrating full extension access.

Image: Detailed view of the adjustable locking device, drawer fixing hook, and hydraulic soft-closing mechanism.

Image: Illustration of the quiet operation of OCG drawer slides, indicating a noise level of 24 dB during closing.
3. Package Contents
Each package of OCG Undermount Drawer Slides (21 inch, 6 pairs) includes the following components:
- 6 pairs of OCG Undermount Drawer Slides (21 inch)
- Adjustable locking devices
- Rear mounting brackets
- Mounting screws
- Installation instructions (refer to the electronic manual for specific parameters)

Image: Components included in the OCG drawer slide package: slides, brackets, and screws.
4. Specifications
| Attribute | Value |
|---|---|
| Brand | OCG |
| Size | 21 Inch |
| Number of Items | 6 Pairs |
| Material | Alloy Steel |
| Finish Type | Steel |
| Mounting Type | Under Mount |
| Weight Limit | 35 Kilograms (approx. 75 lbs) |
| Product Dimensions (L x W x Th) | 21" x 1.63" x 0.63" |
| Overall Length (Slide) | 21.4 inches (543mm) |
| Suitable Drawer Depth | 21 inches (533mm) |
| Minimum Cabinet Depth Required | 22.4 inches (569mm) |
| Max Cabinet Depth (with face frame/brackets) | 23.0 inches (584mm) |
| Maximum Side Panel Thickness | 16mm (5/8") |
5. Installation Guide
For detailed installation instructions, please refer to the official Installation Manual (PDF). Below are key considerations and steps for proper installation:
5.1 Choosing the Correct Size
It is crucial to select the correct drawer slide size for your application. The overall length of these 21-inch slides is 21.4 inches (543mm). They are suitable for drawers with a depth of 21 inches (533mm). The minimum cabinet depth required is 22.4 inches (569mm). When installing in cabinets with a face frame and requiring mounting brackets, the maximum cabinet depth is 23.0 inches (584mm).

Image: Guide for selecting the appropriate drawer slide size based on drawer and cabinet dimensions.
5.2 Drawer and Cabinet Dimensions
Carefully confirm all dimensions before purchasing and installation. These are Undermount Drawer Slides; their installation dimensions differ from side-mount drawer slides. If your drawer is already pre-installed/prepared for side-mount three-section ball bearing drawer slides, this product (bottom-mount) cannot be installed. Please choose side-mount three-section drawer slides instead.
The maximum thickness of the side panels of the applicable drawer is 16mm (5/8"). Ensure there is an appropriate gap between drawers and cabinet side panels.

Image: Technical drawings detailing drawer and cabinet dimensions for undermount slide installation.

Image: Visual reference for the maximum allowable drawer side panel thickness.
5.3 Adjusting the Locking Device
The adjustable locking device allows for fine-tuning of the drawer front's vertical position. To adjust, rotate the side adjustment mechanism left or right equally on both locking devices. This action moves the drawer front in the vertical direction.

Image: Instructions for adjusting the drawer's vertical position using the locking device.
5.4 General Installation Steps
While detailed steps are in the PDF manual, general installation involves:
- Prepare the cabinet opening according to the specified dimensions.
- Install the cabinet-side portion of the slides, ensuring they are level and parallel.
- Attach the drawer-side components, including the adjustable locking devices, to the drawer.
- Insert the drawer into the cabinet, engaging the slides.
- Adjust the locking devices as needed for proper drawer front alignment.

Image: A person demonstrating the installation process of an OCG drawer slide.
6. Operation
These OCG drawer slides are designed for smooth and quiet operation. They feature a full extension mechanism, allowing the drawer to extend completely out of the cabinet for full access to its contents. The integrated soft-close functionality ensures that the drawer closes gently and silently, preventing slamming and reducing wear and tear.
7. Maintenance
OCG drawer slides are designed for durability and require minimal maintenance. To ensure optimal performance and longevity:
- Cleaning: Periodically wipe down the slides with a clean, dry cloth to remove dust and debris. Avoid using abrasive cleaners or solvents that could damage the finish.
- Lubrication: Under normal household use, the slides are pre-lubricated and generally do not require additional lubrication. If operation becomes less smooth over time, a small amount of silicone-based lubricant can be applied to the moving parts, avoiding the soft-close mechanism.
- Inspection: Occasionally check all mounting screws to ensure they are tight. Loose screws can affect performance and durability.
8. Troubleshooting
If you encounter issues with your OCG drawer slides, consider the following common problems and solutions:
- Drawer is hard to open or close:
- Verify that the slides are installed level and parallel within the cabinet. Misalignment is a common cause.
- Check for any obstructions or debris in the slide mechanism.
- Ensure the drawer box itself is square and not binding.
- Confirm that the drawer side panel thickness does not exceed 16mm (5/8").
- Drawer does not close fully or soft-close mechanism is not engaging:
- Check for obstructions at the back of the drawer or cabinet.
- Ensure the soft-close mechanism is not damaged or jammed.
- Verify that the drawer is properly seated on the slides.
- Drawer front is misaligned (too high/low):
- Use the adjustable locking devices to fine-tune the vertical position of the drawer front. Rotate both devices equally.
- Noise during operation:
- Ensure all mounting screws are securely fastened.
- Clean the slides to remove any accumulated dust or grit.
- A slight 'thud' at the very end of closing is normal for some soft-close mechanisms.
If issues persist after attempting these troubleshooting steps, please contact OCG customer support for further assistance.
9. Warranty and Support
OCG provides lifelong technical support and service for its products. If you have any questions, concerns, or require assistance with your drawer slides, please contact OCG customer service directly. When contacting support, it is helpful to have your Amazon order number and a detailed description of the issue ready for prompt resolution.




