Currently, duct manufacturing in Hai Phong has been automated using modern machinery, improving product quality and optimizing productivity. With the advantage of a large-scale factory and advanced CNC machinery, Sao Viet Ducting (OGSV) is a pioneer in the field of duct manufacturing in Hai Phong. The company has fully met the stringent technical standards for civil, commercial, and industrial projects.
Standard manufacturing process for air ducts in Hai Phong.
>>> See more: Sao Viet Air Duct - Air Duct Manufacturer in Hai Phong
Manufacturing standards for air ducts are crucial for ensuring the operational efficiency, safety, and lifespan of ventilation and air conditioning systems. At Sao Viet Air Ducts (OGSV), the entire production process strictly adheres to current regulations, the most common of which include:
- TCVN 5687:2010: This is a national standard on ventilation, applicable to the design and installation of ventilation systems, issued by the Ministry of Science and Technology. This standard ensures airflow, airtightness, stable operation, and energy efficiency.
- TCXD 232:1999: Vietnamese construction standard on ventilation, air conditioning, and refrigeration systems, clearly specifies the requirements for manufacturing, installing, and inspecting air ducts.
Adherence to these standards ensures that OGSV's ductwork production in Hai Phong always achieves high accuracy, meeting the technical requirements of all ME/HVAC projects.
Standard duct manufacturing process in Hai Phong
>>> See more: Why Customers Choose Sao Viet Air Duct in Hai Phong
The duct manufacturing process at Sao Viet Ducting (OGSV) is built on technical standards, ensuring consistency in quality and accuracy for each product. Depending on the type of duct, OGSV will flexibly adjust the processes to meet the technical requirements and practical construction needs of each project.
Prepare and check raw materials.
The materials used in the production of air ducts in Hai Phong at OGSV include Z080 galvanized steel from Hoa Sen and Hoa Phat, stainless steel, and high-quality high-strength steel. All materials are received into the warehouse and rigorously inspected for thickness, flatness, surface finish, and dimensions according to technical drawings. This ensures that the product achieves high durability, load-bearing capacity, and a long lifespan when put into use.
Cutting and rolling sheet metal
After meeting the input requirements, the sheet metal is processed using a modern CNC cutting system, ensuring high accuracy according to each design dimension. Next, the material is surface-cleaned and fed into a winding machine to form the air duct according to the technical standards of each product type and project.
Air duct manufacturing in Hai Phong – Welding and seam joining.
After shaping, the duct components are fed into an automatic welding and seaming process. This process increases airtightness, ensures a robust structure, and enhances aesthetics. It also minimizes air leakage during the operation of the ventilation and air conditioning system.
Quality inspection of finished ductwork
Finished ductwork undergoes quality checks based on multiple criteria such as airtightness, sound insulation, noise reduction, and dimensional accuracy. This rigorous quality control process ensures that every product leaving the factory meets the technical standards and requirements of the investor.
Packaging and delivery of products
Standard-compliant products will be carefully packaged according to the specific requirements of each project. Sao Viet Air Ducting is ready to deliver and transport air ducts to construction sites in Hai Phong and other northern provinces, committing to on-time delivery, quality assurance, and safety during construction.
Square and rectangular duct production line
In the Hai Phong air duct manufacturing sector, square and rectangular air ducts are the main product lines, used in industrial, commercial, and large-scale building projects. At OGSV, these products are manufactured on modern production lines, ensuring high precision, technical consistency, and superior productivity.
- High-quality materials are used: Sao Viet Air Ducting uses galvanized steel and stainless steel that meet technical standards, possessing good load-bearing capacity, corrosion resistance, and suitability for long-term operation of HVAC systems. Materials are thoroughly inspected before being used in the production line.
- Pulling the sheet metal into the automatic unwinding system: After being secured, the sheet metal coil is pulled into the unwinding system of the Autoline machine. This step ensures a continuous and stable material supply, minimizing deviations during processing.
- Straightening and rib rolling for increased rigidity: The Autoline system uses 3 straightening rollers to ensure a perfectly flat sheet metal surface. The sheet metal is then passed through a rib rolling process to increase rigidity, helping to prevent deformation and dents in the ductwork during transportation and installation.
- CNC Angle Cutting and Cutting: CNC cutting machines simultaneously cut angles and cut through sheet metal to pre-programmed dimensions. This process ensures high accuracy, shortens production time, and minimizes technical errors.
- Double seaming and flange running: The sheet metal is then passed through a double seaming system to ensure a secure edge, followed by flange running on both sides to increase the connection between the joints. This is a crucial factor in achieving high airtightness and structural durability for the ductwork.
- Folding the duct to design dimensions: In the final stage of the Autoline production line, the material is folded into square or rectangular duct shapes according to the pre-set specifications, ensuring consistency with the design drawings of each project.
- Duct corner finishing: After bending the duct, OGSV performs corner finishing using a machine or manual methods depending on technical requirements, to ensure the duct is secure and completely airtight before shipment.
Spiral round duct production line at OGSV
Spiral round ducting is a popular solution in modern buildings due to its ability to optimize airflow, reduce pressure loss, and save installation space. Sao Viet Air Ducting's spiral round ducting production line is fully integrated and highly automated.
- Selection of technically sound raw materials: Input materials are carefully selected to ensure a beautiful surface, uniform thickness, and full compliance with the technical requirements for the production of spiral round ducting.
- Feeding the coiled sheet metal into the SPTF machine: The coiled sheet metal is fed directly into the SPTF spiral round duct production machine, ensuring a continuous, stable, and precise forming process.
- Adjusting the seaming die to the duct diameter: The operator will adjust the seaming die to the exact diameter of the air duct to be produced. This step determines the geometric accuracy and airtightness of the product.
- Automatic twisting and cutting to preset dimensions: The air duct is automatically twisted according to a mold, then precisely cut to the pre-programmed length. The finished product has high airtightness, a smooth and beautiful surface, and superior aesthetics.
OGSV manufactures high-quality air ducts in Hai Phong.
>>> See more: Sao Viet Air Duct Manufacturing Factory – Modern Scale
When choosing a ducting manufacturer in Hai Phong, Sao Viet Ducting (OGSV) is a trusted partner for many contractors and investors thanks to its production capacity and professional processes. OGSV owns a large-scale factory in Hai Phong, equipped with a synchronized CNC machine system and Autoline production line. This allows for precise processing, stable production output, and the ability to meet the demands of projects with tight deadlines or large volumes.
The entire duct manufacturing process strictly adheres to standards, ensuring that the product meets technical requirements, airtightness, durability, and operational safety. As a result, ventilation and air conditioning systems, once put into use, always operate stably, save energy, and have a long lifespan.
In addition, OGSV offers a diverse range of duct products, including square ducts, rectangular ducts, spiral round ducts, insulated ducts, and fire-resistant ducts. The company flexibly meets the needs of industrial, commercial, and residential projects. A team of experienced HVAC engineers provides support from technical consultation to production and delivery, optimizing solutions for each project. With a commitment to quality, timely delivery, and fire safety, Sao Viet Ducting is confident in being the leading choice for duct manufacturing in Hai Phong and the Northern region of Vietnam.
Contact information
Address: 267 Le Thanh Tong, May Chai, Hai Phong
Mrs. Hang: 0815.999.826
Mrs Giang: 0934.559.168
Email: vietonggio@gmail.com
