A stable and reliable automatic door system depends not only on the quality of the equipment but also on the quality of the installation process. In practice, many issues such as door vibration, abnormal noise, unstable operation, or premature wear and tear often originate from improper installation. At Sonha Auto, every project is carried out according to a professional automatic door installation process based on the technical requirements of leading Japanese automatic door brands such as NABCO. Each stage is carefully controlled to ensure smooth operation, safety, and long-term durability after commissioning.
- Why is a professional automatic door installation process important?
- Japanese-standard automatic door installation process at Sonha Auto
- Site survey and installation planning
- Reinforcing the steel beam or aluminum support frame
- Guide rail installation
- Installation of the motor, controller, and drive system
- Installing the door panels onto the roller carriage system
- Installing the door panels onto the rail and mechanical adjustment
- System programming and speed adjustment
- Final finishing and operational commissioning
- Sonha Auto – Professional automatic door installation services
Why is a professional automatic door installation process important?
The quality of automatic door equipment can only be fully realized when it is installed correctly. Minor errors such as insufficient structural support, misaligned guide rails, or improperly adjusted drive systems can directly affect door performance.
Common consequences include unstable operation, excessive noise, accelerated component wear, and increased maintenance costs throughout the service life of the system.
For this reason, Sonha Auto always considers a professional automatic door installation process to be a critical factor in ensuring project quality and delivering long-term customer satisfaction.

Japanese-standard automatic door installation process at Sonha Auto
For NABCO automatic doors and other Japanese automatic door brands, installation must strictly comply with the manufacturer’s technical requirements. Structural support, guide rail alignment, drive system installation, programming, and commissioning all require a high degree of precision.
This installation process is currently applied by Sonha Auto across a wide range of projects, including airports, hospitals, factories, shopping centers, and office buildings throughout Vietnam.
Site survey and installation planning
Before installation begins, Sonha Auto’s technical team conducts a detailed site survey to assess all factors that may affect door performance.
The survey includes:
- Actual opening dimensions
- Wall, beam, and rail support structure conditions
- Power supply availability
- Traffic volume and usage frequency
- Operating environment conditions
For high-traffic facilities such as hospitals, airports, and shopping malls, a thorough site assessment helps determine the most suitable door configuration and minimizes unforeseen issues during installation.
This is the first step in a professional automatic door installation process, ensuring that every solution is tailored to real project conditions.

Reinforcing the steel beam or aluminum support frame
This stage forms the foundation of the entire automatic door system. Depending on the rail length and door weight, Sonha Auto’s technicians select a steel beam or aluminum frame with appropriate load-bearing capacity. The supporting structure is reinforced and secured before equipment installation begins.
If the support structure lacks sufficient rigidity, the system may experience high-frequency vibration during operation, resulting in excessive noise and reduced service life for both the motor and guide rail system.
For this reason, Sonha Auto places special emphasis on this stage to provide a solid foundation for the entire system.

Guide rail installation
Once the support structure is completed, the guide rail system is mounted onto the load-bearing framework. This stage requires exceptional accuracy in terms of levelness, straightness, and alignment. Even a slight deviation can increase operating friction, causing wheels and rails to wear more quickly.
Based on experience from thousands of completed projects, Sonha Auto has found that most vibration and noise issues occurring after installation can be traced back to rail installation inaccuracies.
Therefore, within the professional automatic door installation process, guide rails are always inspected using specialized measuring instruments before proceeding to the next stage.

Installation of the motor, controller, and drive system
After guide rail alignment is completed, technicians install the motor, controller, pulleys, and drive belt system. The motor and pulleys are securely fixed to ensure reliable performance during startup and continuous operation. The drive belt is adjusted according to technical specifications to ensure smooth and stable movement.
If the belt is too tight, it may create noise and accelerate component wear. If it is too loose, door movement may become inaccurate. In addition, all power and signal cables are neatly organized to reduce the risk of electrical faults and long-term damage.

Installing the door panels onto the roller carriage system
After the drive system is completed, the door panels are connected to the specialized roller carriage assembly. For automatic glass doors, the panel weight must be evenly distributed throughout the system. Uneven load distribution can cause premature wear of the guide rails and rollers, affecting equipment lifespan.
For this reason, Sonha Auto carefully checks door balance before proceeding to the next stage.
Installing the door panels onto the rail and mechanical adjustment
After assembling the door panels and roller system, the door is installed onto the guide rail. This process is performed carefully to avoid scratching the rail surface while ensuring smooth movement across the entire travel path.
The technical team then rechecks all mechanical parameters to verify stable operation before powering up the system.

System programming and speed adjustment
Once the mechanical installation is completed, the system is powered on and operating parameters are configured.
Sonha Auto technicians inspect and adjust:
- Opening speed
- Closing speed
- Hold-open time
- Safety sensor performance
- Obstacle detection capability
- Automatic operation mode
Since every project has different operational requirements, parameters are customized rather than applying a standard configuration. For example, hospitals require opening and closing speeds suitable for patient transport beds and medical carts, while shopping centers and office buildings prioritize smooth traffic flow during peak hours.
This is another critical component of the professional automatic door installation process, ensuring the best possible user experience.

Final finishing and operational commissioning
This is the final stage before project handover. After installing protective covers and cleaning the work area, the door system undergoes continuous operational testing.
According to Sonha Auto’s procedures, commissioning involves more than visual inspection. The actual operating performance of the entire system is thoroughly evaluated.
The door is cycled repeatedly to verify:
- Motor stability
- Smooth rail operation
- Sensor responsiveness
- Safety functions
- Accuracy of programmed settings
Only when the entire system operates reliably under real-world conditions and meets all technical requirements is the project approved and handed over to the customer.

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Sonha Auto – Professional automatic door installation services
In addition to supplying genuine automatic door solutions, Sonha Auto places great emphasis on installation quality and commissioning standards.
With more than 20 years of experience and thousands of completed projects across airports, hospitals, factories, shopping centers, and office buildings nationwide, Sonha Auto understands the operational requirements of every project type and provides the most suitable installation solution.
The combination of high-quality equipment, experienced technicians, and a professional automatic door installation process following Japanese standards ensures reliable, safe, and long-lasting system performance.
If you are looking for a trusted automatic door contractor, Sonha Auto is ready to support your project from consultation and installation to commissioning and long-term maintenance services.




