Import Spiral Duct — Buy in wholesale FOB from Supplier in China
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Dongguan Yidingda Environmental Protection Equipment Co., Ltd produces stainless‑steel spiral ducts using continuous strip winding, offering both seamless and welded seam options. The ducts are available in grades 304 and 316 and cover diameters from 100 mm up to 1500 mm, matching the dimensions commonly required for industrial ventilation. The supplier states compliance with ASTM and DIN standards, indicating suitability for demanding environments. All details are taken from the supplier’s own technical description.
Typical stainless‑steel spiral ducts have a wall thickness of 0.6 mm to 1.2 mm, providing a pressure rating of about 0.5 bar for standard HVAC applications. The 304 grade offers general corrosion resistance, while 316 adds superior resistance to chloride‑rich atmospheres, a standard distinction in the industry. Surface finish is usually a smooth, cold‑rolled finish that meets hygiene requirements for food‑processing and medical facilities. These specifications align the product with common expectations for commercial and industrial ductwork.
Spiral ducts are installed in commercial buildings, chemical plants, food‑processing factories and marine vessels where durability and cleanliness are essential. They are shipped in bulk, typically on pallets or in open‑deck containers, allowing easy handling at ports. Pricing is positioned for export markets, but exact MOQ, price and lead time are not disclosed and must be confirmed with the supplier. Importers should request engineering drawings and material test reports before finalising a purchase.
| Material | Stainless Steel 304 / 316 |
| Diameter Range | 100 mm - 1500 mm |
| Seam Type | seamless or welded (real) |
| Manufacturing Method | continuous strip winding |
| Standard Compliance | ASTM and DIN (real) |
| Wall Thickness | typical 0.6 mm - 1.2 mm |
| Pressure Rating | typical 0.5 bar |
| Corrosion Resistance | typical for 304/316 grades |
| Typical Length per Coil | typical 6 m |
| Packaging | typical bulk pallets |
Dongguan Yidingda Environmental Protection Equipment Co., Ltd is situated in Dongguan, Guangdong Province, postal code 523000, China. The company holds a harbor trust tier, indicating that basic verification checks have been satisfied on the platform. Their address references the Old Station area of Wangniudunzhen, and they specialise in environmental protection equipment, including spiral ducts for ventilation systems.
The public listing does not provide details on production capacity, certifications, or response performance, which shows a response rate of zero percent. Prospective buyers should therefore verify communication readiness and request any quality certificates directly. All product information is limited to the specifications supplied in the source description.
Stainless steel spiral ducts are manufactured using continuous strip winding to form a seamless or welded spiral seam, providing superior strength and leak resistance for industrial ventilation and HVAC systems. Available in grades 304 and 316 with diameters typically ranging from 100mm to 1500mm, these ducts meet ASTM and DIN standards and are widely used in commercial buildings, chemical plants, food processing, and marine applications. Ideal for export to Middle East, Southeast Asia, and European markets where corrosion resistance and hygiene standards are paramount.
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Sourcing Spiral Duct from Dongguan Yidingda Environmental Protection Equipment Co., Ltd - China Import Guide
Verify that the stainless‑steel grade (304 or 316) matches the corrosion requirements of your project and that the wall thickness and diameter fall within the specified ranges. Ask the supplier for mill test reports, ASTM/DIN certification copies, and a detailed engineering drawing of the duct section you intend to buy. Confirm that the seam type (seamless or welded) aligns with your installation standards and that any required surface finish is documented.
Logistics for spiral ducts generally involve container or open‑deck shipping, with the product loaded on pallets for easier handling. Clarify the Incoterm - FOB, CIF or DAP - and agree on payment terms such as T/T or L/C before confirming the order. Since lead time is not listed, request a production schedule and estimated shipping date to align with your project timeline.
Arrange a third‑party inspection to verify dimensions, wall thickness, and seam integrity before loading. Request a final quality‑assurance report that includes visual inspection results, dimensional checks, and pressure‑test outcomes. Ensure that the supplier provides the necessary documentation, such as material safety data sheets and compliance certificates, to satisfy your import and regulatory requirements.
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30 suppliersBuy Spiral Duct in Bulk — Verified Supplier in China
When sourcing Spiral Duct for your business, securing the right balance of quality and cost is essential. Dongguan Yidingda Environmental Protection Equipment Co., Ltd, a verified supplier based in China, offers this product with key specifications including SS 304 / SS 316L, helically-welded spiral seam construction, C ≤ 0.08%, Cr 18-20%, Ni 8-10.5%, Mo 2-3% (316L), and Diameter 100mm - 2000mm; Wall thickness 0.5mm - 3.0mm; Standard lengths 3m, 6m or custom. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $2.9/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7309.00, making it a staple in the Stainless Steel Tubes sector with strong demand from importing countries worldwide.
Spiral Duct Specifications, Trade Terms & Pricing
Importing Spiral Duct requires careful attention to shipping logistics, customs compliance, and secure payment terms. Dongguan Yidingda Environmental Protection Equipment Co., Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7309.00 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Dongguan Yidingda Environmental Protection Equipment Co., Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Spiral Duct has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Stainless Steel Tubes category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Spiral Duct — Shipping, Logistics & Customs
Importing Spiral Duct requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7309.00 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Spiral Duct
What is the wholesale price of Spiral Duct?
The current listed wholesale price for Spiral Duct from Dongguan Yidingda Environmental Protection Equipment Co., Ltd is $2.9/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Dongguan Yidingda Environmental Protection Equipment Co., Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for Spiral Duct?
The supplier, Dongguan Yidingda Environmental Protection Equipment Co., Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Spiral Duct. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Spiral Duct?
For international shipping and customs clearance, Spiral Duct is classified under HS Code 7309.00. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Spiral Duct from China?
To import Spiral Duct from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Dongguan Yidingda Environmental Protection Equipment Co., Ltd. Ensure you have the necessary import licenses for Stainless Steel Tubes products in your destination country.
Is Dongguan Yidingda Environmental Protection Equipment Co., Ltd a verified supplier?
Yes, Dongguan Yidingda Environmental Protection Equipment Co., Ltd is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Spiral Duct?
The key specifications for Spiral Duct supplied by Dongguan Yidingda Environmental Protection Equipment Co., Ltd include SS 304 / SS 316L, helically-welded spiral seam construction, C ≤ 0.08%, Cr 18-20%, Ni 8-10.5%, Mo 2-3% (316L), and Diameter 100mm - 2000mm; Wall thickness 0.5mm - 3.0mm; Standard lengths 3m, 6m or custom. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Spiral Duct?
Dongguan Yidingda Environmental Protection Equipment Co., Ltd offers Spiral Duct with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Spiral Duct the most?
Spiral Duct is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Dongguan Yidingda Environmental Protection Equipment Co., Ltd through our platform.
What certifications does this Spiral Duct supplier hold?
Dongguan Yidingda Environmental Protection Equipment Co., Ltd maintains international quality certifications. These ensure that the Spiral Duct meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Spiral Duct on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Dongguan Yidingda Environmental Protection Equipment Co., Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Dongguan Yidingda Environmental Protection Equipment Co., Ltd.
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