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The downspout pipe roll forming machine is an automated production line designed for manufacturing metal downspouts used in roof drainage systems. The machine integrates decoiling, roll forming, bending, cutting, and run-out handling into one continuous process, ensuring high efficiency and consistent product quality.
As a reliable downspout machine manufacturer, DUWELL designs and supplies customized downspout roll forming machines suitable for different materials, sizes, and profiles. Operators only need to set the required length and quantity on the PLC controller, and the system runs automatically with stable output.
As an experienced downspout machine manufacturer, DUWELL provides complete production solutions for both residential and commercial rainwater drainage systems. Each downspout pipe roll forming machine is engineered according to the customer’s material thickness, profile drawings, and output capacity requirements.
The system is widely used by:
Gutter and downspout manufacturers
Roofing system suppliers
Building material factories
Construction component producers
It can be combined with gutter roll forming machine to create a complete rainwater drainage production line.
Round Downspouts
Round downspouts are the standard first choice for a half round gutter system installation but are also compatible with box-style and k-style gutters There are two primary round downspout styles to consider: Plain Round or Round Corrugated both are circular in shape, however, Round Corrugated, also called Fluted Downspouts have corrugations/flutes that provide extra strength as well as conceal dents over time.
Round downspouts are available in a range of sizes and finishes. The diameter can be 3, 4, 5, or 6" and they come in painted aluminum, mill finish aluminum, copper, galvanized, galvalume. We make the machines according to customer’s requirement.
Rectangular Downspouts
Rectangular downspouts are typically used with k style and box style gutter systems; although they can be used with half round gutter systems. Since they are roll formed through a downspout machine they have corrugations. These corrugations strengthen the downspout and add additional rigidity. Mostly used sizes are 2x3, 3x4, and 4x5. We make the downspout making machine according to customer's required sizes and material.
Uncoiler: Loading the steel coil
Guiding : Guide in the material
Profiling Roll Forming Machine: For precise profile forming.
Bending: Make the bending of the pipe.
Cutting device: For precise cuts.
Stacking Table: Stacking the finished products
Working process
Decoiler —→ Guiding—→Roll-forming Machine—→ Adjusting device—→Bending and cutting—→ Out table
Machine parameters
Suitable plate of the rolling: PPGI or GI or Aluminum with thickness 0.5~0.8mm,
Working speed: 15 meters/min
Forming stations: According to customer’s roof profiles
Roller material: Cr12Mov (Cr12) with quenching and chrome plating on surface, hardness: HRC58-62
Material of principal axis: #45 advanced steel
Main machine power: 7.5 KW
Control system: The whole machine is controlled by PLC system.
A downspout pipe roll forming machine is an automatic cold roll forming line
used to produce roof drainage downspouts, rainwater pipes, and gutter
outlets from steel or aluminum coils.
The machine automatically forms, cuts, and shapes metal strips into square,
rectangular, or circular downspout pipes for residential, commercial,
and industrial roofing systems.
Our downspout pipe roll forming machine can manufacture:
• Square downspout pipes
• Rectangular downspout pipes
• Circular/round rainwater pipes
• Gutters and gutter connectors (optional)
We can customize profiles according to customer requirements and
international standards.
The machine is compatible with:
• Galvanized steel (GI)
• Aluminum sheets
• Stainless steel
• Color-coated steel
• Thickness: 0.3mm – 1.2mm (customizable)
High-quality material ensures strong, corrosion-resistant downspouts.
Standard speed:
• 8–15 meters per minute (depends on punching and cutting operations)
• Automatic systems with servo feeding can reach 20 m/min
This ensures high-efficiency production for residential and commercial
roofing projects.
A complete line includes:
• Decoiler (manual or hydraulic)
• Guiding
• Roll forming machine
• Hydraulic punching unit
• Cutting system (shear or flying saw)
• PLC control system with touch screen
• Output table or stacker
Fully automated operation allows minimal labor requirements and higher output.
Yes. Features include:
• PLC automatic control
• Touch screen operation
• Automatic hole punching
• Auto length cutting
• Production data monitoring
One operator can manage the entire production line, improving efficiency.
Typical sizes include:
• Square/rectangular: 50×50 mm, 60×80 mm, 75×75 mm
• Round: 75–110 mm diameter
• Thickness: 0.3–1.2 mm
Custom sizes are available based on customer requirements.
• Rain gutter and roofing manufacturers
• Industrial roof drainage system suppliers
• Construction material factories
• Aluminum and steel pipe producers
Contact With Us:
Have a Questions? Call Us:
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No.28 Xingang Road Economic Development Zone, Jingjiang City, Taizhou City, Jiangsu Province
