Corrugated duct for a fresh-air or ventilation system should be defined by its material, inside and outside dimensions, wall profile, flexibility, connection method and supplied length. These requirements influence extrusion, forming, cooling and downstream handling.
RUNNING MACHINE helps buyers prepare a production-line scope from the duct and fitting interface rather than assuming that every double-wall corrugated pipe configuration is interchangeable.
Product definition checklist
- Intended ventilation application
- Resin and color
- Inside and outside dimensions
- Inner-wall and outer-corrugation profile
- Bend and flexibility requirements
- Fitting or connector interface
- Coil or straight-length format
- Applicable dimensional, airflow or mechanical checks
Typical equipment scope
The proposal may include feeding, extrusion, die tooling, corrugation forming, cooling, cutting or coiling and required auxiliary systems. Product testing and connector production are separate items unless specifically included.
Information needed for a proposal
- Duct drawing or representative sample
- Material specification
- Complete size range
- Wall and corrugation profile
- Connector or fitting drawing
- Finished length and packaging
- Target production rate
- Product inspection requirements
- Factory power, water, air and layout
Frequently asked questions
Can the same line make several duct sizes?
The possible range depends on the extrusion and corrugator design and the required tooling. Provide all planned sizes and the expected production mix.
Are connectors produced by the same line?
Connector or fitting production is normally a separate scope unless explicitly included. Send the fitting drawings so the boundary can be stated clearly.
What should be checked before comparing quotations?
Compare the same duct profile, size range, mould-block quantity, cooling system, downstream handling, auxiliaries and utility boundary.
Related corrugated pipe applications
Double-wall corrugated pipe line · Water-cooled double-wall line
Discuss your fresh-air duct project
Send Mac Lee the duct drawing, material, size range, fitting interface, package format and factory conditions.
View Double-Wall Corrugated Pipe Machines · Quotation checklist · Pipe line selection guide