HUANUO 4-Leg Dual Motor Electric Standing Desk Frame User Manual

1. Safety Information

Please read all safety instructions carefully before assembly and operation. Failure to follow these instructions may result in injury or damage to the product.

• Always ensure that the total weight placed on the desk does not exceed the maximum weight limit of 220 lbs (100 kg).
• Be cautious when adjusting the height of the desk to avoid injury from the lifting mechanism. Keep hands and objects clear of moving parts.
• Always follow the assembly instructions carefully to ensure the stability and safety of the desk.
• Do not allow children to operate the desk without adult supervision.
• Ensure all cables are properly managed to prevent tripping hazards and damage during height adjustments.

2. Product Overview

The HUANUO 4-Leg Dual Motor Electric Standing Desk Frame is designed to provide a stable and adjustable foundation for your workspace. It features a robust 4-leg design and dual motors for smooth, quiet height adjustments.

Figure 2.1: The HUANUO 4-Leg Dual Motor Electric Standing Desk Frame with a desktop installed.

Key Features:

• Stable 4-Legs Frame: Crafted from automotive-grade cold-rolled steel, this robust 4-legged standing desk frame supports up to 220 lbs, providing exceptional stability and durability. It ensures superior support for heavy equipment, keeping your workstation steady and secure throughout the day for a reliable, wobble-free experience.
• Powerful Dual Motors: Experience smooth and quiet height adjustments with our advanced dual motor system, tested to withstand 50,000 lift cycles to ensure long-lasting performance. The height adjustable desk frame operates with a maximum noise level of 55 dB to maintain a quiet, peaceful work environment.
• Flexible Height Adjustment: Offering a height range of 27″ to 46″ and 4 memory height buttons, the stand up desk frame allows you to smoothly transition between your favorite sitting and standing positions throughout the day. Enjoy better posture and improved comfort for every task.
• Desktop Compatibility: This standing desk frame is compatible with desktops measuring 49.6″ to 70.9″ wide and 23.6″ to 31.5″ deep. Please note that the frame has a fixed 49.6″ width and does not expand or contract horizontally.

Figure 2.2: The desk frame is designed to support up to 220 lbs for heavy equipment.

Figure 2.3: The 4-point support system ensures enhanced stability.

Figure 2.4: Construction details highlighting the automotive-grade cold-rolled steel for durability.

Figure 2.5: The dual motor system is tested for 50,000 lift cycles to ensure long-lasting performance.

3. Package Contents

Verify that all components are present before beginning assembly.

• Standing Desk Frame components
• Control Panel
• Cable Management Tray
• Storage Hooks (x2)
• Assembly Hardware (screws, washers, etc.)
• Instruction Manual

4. Assembly Instructions

Follow these steps for proper assembly. It is recommended to have a helper for certain steps, especially when attaching the desktop and flipping the desk.

1. Unpack Components: Carefully remove all parts from the packaging and lay them out on a clean, flat surface. Check against the package contents list.
2. Assemble Frame: Follow the detailed diagrams in the included instruction manual to connect the frame components. Ensure all bolts are securely tightened.
3. Attach Desktop: Place your chosen desktop (not included) upside down on a soft, protective surface. Position the assembled desk frame onto the desktop, ensuring it is centered and aligned. Secure the desktop to the frame using the provided screws and washers. Refer to the product dimensions for compatible desktop sizes.


Figure 4.1: Desktop compatibility and frame dimensions. The frame has a fixed width of 49.6 inches.

4. Install Control Panel and Accessories: Attach the control panel, cable management tray, and storage hooks to the underside of the desktop using the provided hardware.


Figure 4.2: Cable management tray and storage hooks for organizing your workspace.

5. Connect Cables: Connect all motor and control panel cables to the control box according to the manual. Ensure connections are secure.
6. Flip Desk: With assistance, carefully flip the desk upright and place it in its desired location.
7. Initial Power-Up: Plug the desk into a power outlet. The desk may perform an initial calibration cycle.

Assembly Video Guide:

5. Operating Instructions

The electric standing desk frame offers easy height adjustment and memory presets for convenience.

Height Adjustment:

• Use the Up (▲) and Down (▼) buttons on the control panel to manually adjust the desk height. The LED display will show the current height.
• The desk can be adjusted between 27 inches (68.6 cm) and 46 inches (116.8 cm).

Figure 5.1: The desk frame offers a flexible height adjustment range for various user preferences.

Memory Presets:

The control panel features 4 memory buttons (1, 2, 3, 4) to save and recall your preferred sitting and standing heights.

1. To Save a Height: Adjust the desk to your desired height using the Up/Down buttons. Press the "M" button (or similar memory set button, if present, otherwise hold the number button) followed by one of the number buttons (1, 2, 3, or 4). The LED display will show "S-" and then the number, indicating the height is saved.
2. To Recall a Height: Press the corresponding number button (1, 2, 3, or 4) to automatically move the desk to the saved height.

Figure 5.2: The intelligent controller with LED display and memory height buttons.

Operation Video Guide:

6. Maintenance

Regular maintenance helps ensure the longevity and proper function of your standing desk frame.

• Cleaning: Wipe the desk frame with a dry cloth to remove dust and debris. Avoid using harsh chemicals or abrasive cleaners.
• Cable Management: Periodically check and organize cables using the included cable management tray and hooks to prevent tangling and damage.
• Inspection: Regularly inspect all bolts and connections to ensure they remain tight. Retighten if necessary.
• Weight Limit: Do not exceed the maximum weight capacity of 220 lbs.

7. Troubleshooting

If you encounter issues with your standing desk frame, refer to the following common troubleshooting steps:

• Desk Not Moving:
  • Check if the power cord is securely plugged into both the desk and the wall outlet.
  • Ensure all cables connecting the motors and control panel to the control box are properly connected.
  • If an error code appears on the display, refer to the full manual (if provided separately) for specific error code meanings.
• Uneven Movement:
  • Perform a reset procedure (usually by holding the 'Down' button until the lowest point is reached, then releasing and holding again for a few seconds until a beep or slight movement occurs). Refer to the specific reset instructions in your detailed manual.
  • Ensure the desk is not overloaded and weight is evenly distributed.
• Noise During Operation:
  • A slight motor hum is normal. If the noise is excessive or unusual, check for any obstructions or loose components.

If these steps do not resolve the issue, please contact customer support.

8. Specifications

9. Warranty and Support

The HUANUO 4-Leg Dual Motor Electric Standing Desk Frame comes with a Limited Warranty. Please refer to the warranty card included in your package for specific terms and conditions.

For technical support, troubleshooting assistance, or warranty claims, please contact HUANUO customer service through the retailer where you purchased the product or visit the official HUANUO website.

Product Care Instructions: Wipe with Dry Cloth.