О нас
Duct Production Machinery
Manufacturer & Exporter
HARSLE Duct Division · Operated by Nanjing HARSLE Machine Tool Co., Ltd.
Who We Are
A Dedicated HVAC Duct Machinery Manufacturer
duct.harsle.com is the dedicated Duct Division website of HARSLE, an industrial machinery manufacturer. The company designs, manufactures, and exports industrial sheet metal working machines and HVAC duct production equipment.
HARSLE has developed a focused product line for HVAC duct fabrication — including auto duct production lines, folding machines, flange forming machines, lock forming machines, and electric shearing machines.
We sell directly to industrial buyers, HVAC contractors, sheet metal workshops, and equipment distributors across North America, Europe, Southeast Asia, the Middle East, and Australia.
Company Identity
Transparent Business Information
We believe trust begins with transparency. Here is our verified business identity as registered and operated.
Legal Name
Nanjing HARSLE Machine Tool Co., Ltd.
Business Type
Industrial Machinery Manufacturer & Exporter
Industry Experience
15+ Years in Sheet Metal & HVAC Machinery
Main Products
Duct Production Machinery & Sheet Metal Equipment
Sales Model
Direct B2B Factory Sales & International Export
Export Markets
North America, Europe, Southeast Asia, Middle East, Australia
Our Products
5 Specialized Product Lines for Duct Fabrication
All products are designed for industrial use and intended for professional purchasers in the HVAC and sheet metal industry.
Auto Air Duct Production Lines
Integrated lines for high-volume rectangular duct fabrication
Folding Machines
CNC and manual duct folding equipment for precise bending
Flange Forming Machines
TDF and angle flange duct connection systems
Pittsburgh Lock Forming Machines
For longitudinal seam locking in duct assembly
Electric Shearing Machines
Sheet metal cutting equipment for duct material preparation
Rolling Machines
Electric rolling equipment for curved duct and sheet metal forming
Our Business Model
Factory-Direct B2B, No Intermediaries
We operate as a factory-direct B2B supplier. All machines are manufactured at our production facility in Nanjing. We are not a marketplace, reseller platform, or dropshipping service.
Inquiry & Quotation
Customer submits requirements; we issue a formal PI.
Order Confirmation
Purchase order or signed PI is confirmed by both parties.
Deposit Payment
30–50% deposit required to start production.
Production
Machine manufactured and tested at our factory.
Shipping
Balance payment collected; shipped by sea or air freight.
After-Sales
Technical support, spare parts, remote assistance.
Important: duct.harsle.com is not a marketplace. All products listed on this website are manufactured and sold directly by Nanjing HARSLE Machine Tool Co., Ltd.
We do not list third-party products, act as agents for other manufacturers, or guarantee any pricing or availability outside of a confirmed purchase order.
Why Choose HARSLE
Built on Manufacturing, Backed by Experience
Six practical reasons our B2B customers choose HARSLE for their duct machinery procurement.
Factory-Based Manufacturing
All machines are designed and produced at our own facility. No outsourcing of core components. Customers can visit or conduct factory audits by appointment.
In-House Engineering Team
Our engineering team handles product development, customization, and troubleshooting. Machine specs can be adapted to meet specific production requirements.
Quality Control Process
Each machine undergoes functional testing and inspection before shipment. Test reports and inspection records are available upon request.
International Shipping
We handle export packaging, customs documentation, and freight coordination. Standard export terms include FOB, CIF, and EXW.
After-Sales Support
Installation guidance, operation manuals, remote video support, and spare parts supply. Technical inquiries are responded to within 1 business day.
Transparent Transactions
All orders are processed through formal documentation: Proforma Invoice, purchase contracts, and packing lists. No undisclosed fees or terms.
Связаться с нами
Get in Touch
For product inquiries, pricing, or technical questions, contact our sales team directly.
Contact Information
Nanjing HARSLE Machine Tool Co., Ltd.
Mon – Fri, 9:00 AM – 6:00 PM (UTC+8)
Business Transparency Statement
This website is operated exclusively by Nanjing HARSLE Machine Tool Co., Ltd. All products are manufactured and sold directly by our company.
We are a registered industrial machinery manufacturer and direct exporter. We are not affiliated with any third-party reseller, marketplace, or trading platform.
All inquiries submitted via this website are handled by our sales team. Formal purchase documentation is issued for every confirmed order.
Typical inquiry response time: within 1 business day.
