Round Duct and Cylinder Rolling and Welding Line, Diameter 300 to 1500 mm
Coil to finished cylinder: decoiling, leveling, cutting, four-roll rolling and seam welding in one line

Overview
What it does
This line takes steel from the coil and delivers rolled cylinders. The coil is uncoiled and leveled, the blank is cut to length, conveyed to a hydraulic four-roll rolling machine and rolled to diameter. On the compact line the seam is then welded and the cylinder unloaded; the operator sets the job and feeding, rolling, welding and discharge run as one sequence.
It is built for shops that make a lot of the same kind of cylinder: heavy-gauge and stainless round duct for industrial ventilation and exhaust, fan casings, solar water heater tanks, kitchen equipment shells and other cylindrical parts.
There are two layouts. The compact line rolls and welds cylinders up to 1500 mm long. The longer laser layout adds a 2 kW laser cutting station between the leveler and the rolling machine, so holes and openings are cut in the flat blank before it is rolled; it ends at rolling and unloading, and the seams are welded on a separate seam welder.
Models and specifications
Laser layout: line components
| Decoiler | Two coils, up to 7 t each, coil inner diameter 480 to 600 mm, pneumatic expansion |
| Leveler | 6 upper and 5 lower rolls, 42CrMo, hardened to HRC 54 to 56 and hard-chrome plated |
| Feed | Servo drive, 5.5 kW, 10 m/min; length error ±0.5 mm, diagonal error 1 mm |
| Laser cutting | 2 kW |
| Conveyor | Rubber-coated rollers, servo positioning, 1.5 kW |
| Rolling | Hydraulic four-roll machine, 42CrMo rolls, hard-chrome plated, automatic unloading |
Questions before you quote?
Send photos or drawings of your parts and we come back with the right configuration.
Ask on WhatsAppOptions to discuss
- Compact layout or laser layout
- Welding process to suit your material (to be agreed at quotation)
- Diameter and length range to your product
- Unloading and stacking at the end of the line
What we need from you to quote
- Material, grade and thickness range
- Smallest and largest diameter and the cylinder length
- Holes or openings that must be cut before rolling
- Daily output you are aiming for
- Site power supply and floor space available
Related machines in our duct range
- Hydraulic Rolling Machine SBJY-1500B: rolls round duct from diameter 150 to 800 mm
- Automatic Stitchwelder SB-ZF1500: horizontal straight seam welder for round duct, 0.8 to 3 mm, diameter 150 to 1500 mm
Supply terms
Who supplies it. Taokron. We handle the inquiry, specification review, quotation, pre-shipment inspection, shipping and after-sales support from Melbourne.
Lead time. Lead time is not published for these machines. It depends on the configuration and is confirmed at quotation.
Warranty. Warranty terms are confirmed at quotation.
Commissioning. Remote support included; on-site installation engineer available on request, quoted per order.
CE. CE marking is confirmed at quotation for each machine.
Price. Each machine is configured to your parts, material and output, so there is no list price. Send your details and we quote that machine.
Price request
Ask for a quotation on this machine
Send the parts you make, the material and thickness, the size range and your output. Ryan Tao replies within 12 hours with a configuration, lead time and price. You can also send photos and drawings on WhatsApp +61 435 074 994.
Quotation for: Round Duct and Cylinder Rolling and Welding Line, Diameter 300 to 1500 mm
Several machines or a complete line? Use the full inquiry form
Frequently asked questions
About this machine
What is the difference between the two layouts?
The compact line feeds, rolls and welds cylinders 400 to 1500 mm in diameter and length. The laser layout adds a 2 kW laser station, so openings are cut in the flat blank, and takes plate 1500 mm wide for cylinders 300 to 1500 mm in diameter; its seams are welded on a separate machine.
What thickness does it handle?
1 to 3 mm. The rolling section is rated for sheet with a yield strength of 245 MPa or more; tell us your grade and we confirm it.
Can it run galvanized sheet?
The laser layout lists stainless steel, carbon steel and galvanized sheet. The compact line lists stainless and carbon steel; galvanized is confirmed at quotation.
What lead time and warranty apply?
Lead time and warranty for this machine are confirmed in the quotation for your configuration.
Is the machine CE marked?
CE marking is confirmed at quotation. Tell us the destination country and we check what documents come with the machine.


