Are you looking for the best round sheet metal ductwork factories in China? With so many options available, it can be overwhelming to choose the right one. In this article, we’ll compare the top manufacturers, highlighting their strengths, product offerings, and what sets them apart in the industry. Let’s dive in and find the perfect fit for your needs.

Galvanized Sheet Metal Ducts

Product Details: Galvanized Sheet Metal Ducts from The Duct Shop’s HVAC ductwork are manufactured from high-quality galvanized steel in 3-foot lengths for easy handling. One end of each piece is crimped for easy fitting of consecutive joints or to sheet metal fittings and flexible duct. The seam on the galvanized sheet metal duct is formed on a snap-lock machine, allowing ease of assembly on the job site. The ducts are designed to be snapped together, and it is recommended to seal the seam with a duct sealant to prevent air leakage and improve energy efficiency. All sheet metal duct used for Supply

Air in HVAC/heating or air conditioning systems should be insulated on the outside by wrapping a fiberglass insulation blanket around the sheet metal duct.

Pros:
– Easy assembly with snap-lock seam
– Crimped ends for convenient fitting to sheet metal fittings and flexible duct
– Improves energy efficiency when sealed with duct sealant
– Durable and resistant to corrosion

Cons:
– Requires sealing of the seam to prevent air leakage
– Needs external insulation with a fiberglass insulation blanket

Galvanized Steel Ductwork

Product Details: Biyang Galvanized Duct, also known as Galvanised Ducting or Galvanized Steel Duct, is made from steel sheet and is corrosion resistant due to the pre-galvanizing process. It can be used in both dry and humid environments, such as exposed air ducts or AC ducts. The ducts are available in various shapes, including spiral, welded, and rectangular ducts. Biyang uses advanced machinery, such as the Spiro machine from Switzerland, to ensure smooth and durable ductwork. The galvanized ducts are suitable for applications like dust extraction systems, marine and offshore ventilation, and industrial fume systems.

Pros:
– Corrosion resistant and can be used in humid environments.
– Better noise control with relatively low-pressure drop, reducing drum effect and…
– Minimal leakage due to fewer transverse joints.
– Stiffer than standard ducts, making insulation easier.
– Customizable designs to meet specific needs.

Cons:
– If the zinc coating is scratched deep enough, the underlying steel may corrode.
– Requires high-tech tools and expertise for manufacturing.

Sheet Metal Ductwork

Product Details: Biyang’s sheet metal ductwork is fabricated from galvanized steel and stainless steel, with thickness options ranging from 0.4mm to 2.0mm. The products include a complete set of ductwork connectors and ducting adaptors such as duct splitters, duct reducers, boot-like joints, female and male couplings, and other duct connectors. These are designed for direct installation into air ducts and are suitable for both commercial and industrial use. Biyang utilizes over 15,000 sq. ft. of manufacturing area with state-of-the-art fabricating technology, adhering to strict industry standards and guidelines.

Pros:
– Corrosion-resistant and airtight lock seams
– High tensile strength and economical
– Unsurpassed durability and strength
– Improved energy efficiency and indoor comfort through insulated ductwork
– Highly efficient and reliable
– Competitive prices and free samples for evaluation
– Custom-made options available to fit specific project needs
– Technical and customer support available

Cons:
– More costly than flexible ducts
– Requires specialized installation which may add to the overall cost
– Material selection must balance between rust-resistance and cost-effectiveness

China Spiral Ducts and Fittings Manufacturers and Suppliers

Product Details: Spiral pipe and fittings are made from a coil of prime metal formed into rigid steel tubing with a 4-ply spiral lockseam. The interior is smooth to minimize friction loss, and the grooved seam is entirely on the outside. These pipes are available in various diameters and lengths, often used in HVAC systems for heating, air conditioning, and ventilation. They can also be used in high-pressure applications, dust removal, ventilation, carbon monoxide exhaust, and grain handling. The pipes are constructed to meet or surpass SMACNA standards.

Pros:
– Maximum rigidity and strength due to spiral lockseam construction
– Smooth interior reduces friction loss
– Resistance to crushing is approximately 2 ½ times that of longitudinal lockseam…
– Optional corrugations increase rigidity by approximately 300%
– Fewer hangers and joints are required
– Efficient installation with various connector options

Cons:
– Higher initial cost compared to some other types of ductwork
– Specialized tools may be needed for certain types of connections
– Installation can be more complex for inexperienced workers

Buy Round duct machine

HVAC Duct Forming Machine_Auto Duct Production …

Product Details: The HappyJapan HCH series includes industrial embroidery machines such as the HCH PLUS and HCH-701P. These machines feature a 7-needle sewing head, a heavy-duty industrial motor, and a large sewing field of up to 12.5″ x 12.5″. They are capable of operating at speeds of up to 1000 stitches per minute and include features like automatic color switching, thread and bobbin sensors, and auto-calibration. The machines are designed for 24/7 production and come with a user-friendly control panel, on-board lettering, and various ports for connectivity.

Pros:
– Heavy-duty industrial motor for continuous production
– Large sewing field suitable for various items like shirts, caps, and backpacks
– High speed of up to 1000 stitches per minute
– Automatic color switching and thread/bobbin sensors
– User-friendly control panel with on-board lettering
– 10-year warranty (HCH PLUS) or 8-year warranty (HCH-701P)
– Compact and durable design with suppressed noise

Cons:
– Higher cost compared to entry-level embroidery machines
– Complex setup may require initial training
– Space requirements due to the machine’s size

Round Duct Machine

China Spiral Ducts,Metal Spiral Ducts,Spiral Air Ducts Supplier

Product Details: Spiral Ducts are manufactured from extremely tough, galvanised steel. They are available in diameters ranging from 3-inch to 36-inch and come in five foot lengths. These ducts are considerably stronger than longitudinal pipes of the equivalent gauge.

Pros:
– Highly robust and durable due to the use of galvanised steel.
– Stronger than longitudinal pipes of the same gauge.
– Available in a wide range of diameters (3-inch to 36-inch) to suit various appli…

Cons:
– No specific cons mentioned on the website, but potential drawbacks could include…
– Installation may require specialized tools or expertise due to the robust nature…

China Duct Fabrication Machinery Factory …

Products and Submittals

Product Details: Acosta Sheet Metal Manufacturing specializes in HVAC, roofing, and architectural metals for both commercial and residential applications. Their product lines include a wide array of items such as adjustable elbows, blast gate dampers, ceiling boxes, duct liner and pins, furnace pipe, insulation rolls, reducers, spiral pipe, and various types of vents and registers. For commercial HVAC, products include acoustical flex, alumaflex pipe, and durodyne accessories. Residential HVAC products feature dryer vents, duravent products, and foundation vents. Roofing products include conductor elbows, gravity vents, roof flashings, and gutter straps.

Pros:
– Wide range of products for HVAC, roofing, and architectural needs
– Specialization in both commercial and residential applications
– Use of high-quality materials such as G-90 galvanized products
– Affiliation with Sheet Metal Workers’ Local Union 104 ensuring high-quality stan…
– Ability to manufacture special order items

Cons:
– No specific information on pricing or cost-effectiveness
– No detailed information on product warranties or guarantees
– Limited online resources for product specifications and MSDS sheets, requiring c…

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Round Sheet Metal Ductwork Factories in China

How can I identify reliable suppliers for round sheet metal ductwork in China

To find reliable suppliers, you can use B2B sourcing platforms, industry exhibitions, and supplier directories. Look for suppliers with certifications like ISO 9001 and check client testimonials to ensure their reliability. Well-established manufacturers often provide better product quality and timely delivery.

What are the benefits of purchasing round sheet metal ductwork wholesale

Buying wholesale offers several advantages, including cost savings, bulk quantity discounts, and consistent product quality. Wholesale transactions often allow for customization options and faster delivery times compared to retail purchases. Partnering with trusted suppliers ensures reliable and efficient services.

What types of certifications should I look for in a round sheet metal ductwork factory

When selecting a factory, look for certifications such as ISO 9001, which indicates adherence to quality management standards. Other relevant certifications include IATF16949 for automotive industry standards and ISO 14001 for environmental management. These certifications ensure the factory maintains high standards in production.

How can I ensure the quality of the round sheet metal ductwork I purchase

To ensure quality, check if the factory has a robust quality inspection system in place. Look for factories that use advanced CNC processing equipment and have experienced designers and production technicians. Additionally, ask about their warranty and post-warranty maintenance services to guarantee ongoing support.

What kind of services can I expect from a reputable round sheet metal ductwork factory in China

Reputable factories typically offer a full range of services, including technical training, startup and commissioning works, warranty, and post-warranty maintenance. They may also provide design and engineering support to meet your specific needs. This comprehensive service ensures you get the best out of your ductwork investment.