Introduction
This manual provides detailed instructions for the assembly, operation, maintenance, and troubleshooting of your SANGMUCEN HBF021B01 Double Bed Frame. Please read all instructions carefully before beginning assembly and retain this manual for future reference.
Safety Information
Important: Always follow the weight limit of 800 pounds. Do not exceed the recommended weight capacity to ensure safety and prevent damage. This bed frame is designed with a noise-free feature to provide a comfortable and safe sleeping environment. Ensure all bolts are tightened securely before use. Periodically check and re-tighten all connections.
Package Contents
Before assembly, verify that all components are present and undamaged. Each part is labeled with a serial number for easy identification.
- Headboard components (wood and metal)
- Footboard components (wood and metal)
- Side rails
- Metal support slats
- 9 metal support legs
- Assembly hardware (bolts, washers, Allen key)
- Installation Manual
Setup and Assembly Instructions
Assembly of the SANGMUCEN HBF021B01 bed frame is designed to be straightforward. Follow the detailed assembly instructions provided in the included manual. Each part is labeled with a serial number to simplify the process. The entire installation process typically takes less than 60 minutes.
- Unpack Components: Carefully remove all parts from the packaging. Lay them out on a clean, soft surface to prevent scratches.
- Assemble Headboard and Footboard: Attach the wooden panels to the metal frames of the headboard and footboard using the provided hardware. Ensure all connections are snug.
- Attach Side Rails: Connect the side rails to the assembled headboard and footboard. Do not fully tighten bolts until all main frame components are in place.
- Install Support Legs: Secure the 9 metal support legs to the designated points on the frame.
- Place Metal Slats: Position the metal slats across the frame. The all-metal support system is designed for stability and durability.
- Apply Noise-Free Padding: Install the foam padding to the middle beam as indicated in the manual to prevent metal-on-metal friction and ensure a noise-free experience.
- Install Mattress Grippers: Attach the non-slip mattress grippers to prevent the mattress from sliding.
- Final Tightening: Once all components are in place, securely tighten all bolts using the provided Allen key.

Figure 1: Product Dimensions and Weight Capacity.

Figure 2: Headboard Design and Material.
Operating Instructions
The SANGMUCEN HBF021B01 bed frame is designed for optimal comfort and functionality.
- Mattress Placement: Place your mattress directly onto the metal slats. No box spring is needed. The recommended mattress height is 8 to 12 inches for optimal fit with the headboard.
- Noise-Free Operation: The integrated foam padding on the middle beam minimizes noise from metal components, ensuring a quiet sleeping environment.
- Under-Bed Storage: Utilize the 12.2 inches of clearance under the bed frame for convenient storage of items, helping to keep your bedroom tidy.
- Mattress Stability: The non-slip mattress grippers are designed to keep your mattress securely in place, preventing movement during use.

Figure 3: Under-Bed Storage Space.

Figure 4: Noise-Free Design and Mattress Gripper.

Figure 5: Recommended Mattress Height.
Maintenance
To ensure the longevity and appearance of your bed frame, follow these maintenance guidelines:
- Cleaning: Wipe metal and wood surfaces with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners that could damage the finish.
- Inspection: Periodically check all bolts and connections to ensure they remain tight. Re-tighten if necessary to maintain stability and prevent noise.
- Weight Distribution: Distribute weight evenly across the bed frame to prevent stress on individual components.
- Protection: The headboard and footboard are waterproof and scratch-resistant, but it is advisable to avoid sharp objects or excessive moisture.
Troubleshooting
If you encounter any issues with your bed frame, refer to the following common solutions:
- Squeaking Noises:
- Ensure all bolts are securely tightened. Loose connections are a common cause of squeaking.
- Verify that the foam padding on the middle beam is correctly installed to prevent metal-on-metal contact.
- Mattress Sliding:
- Confirm that the non-slip mattress grippers are properly installed and positioned.
- Check if the mattress is correctly centered on the frame.
- Instability/Wobbling:
- Re-check all assembly points and tighten any loose bolts.
- Ensure the bed frame is placed on a flat, even surface.
If problems persist, please contact customer support.
Specifications
| Brand | SANGMUCEN |
| Model Number | HBF021B01 |
| Colour | Black |
| Product Dimensions | 197L x 138W x 100H Centimetres (approx. 77.5"L x 54.3"W x 39.3"H) |
| Material | Metal, Wood |
| Special Features | No Box Spring Needed, Space Saving, Squeak Resistant |
| Item Weight | 20 kg (approx. 44 lbs) |
| Compatible Mattress Size | Full/Double |
| Included Components | Headboard, Installation Manual, Slats |
Warranty and Support
SANGMUCEN is committed to providing excellent customer service and high-quality products. If you have any problems with your bed frame, please feel free to contact us. We will endeavor to solve your problem within 24 hours.
For support, please refer to the contact information provided with your purchase or visit the official SANGMUCEN website.