In the roof drainage system of buildings, although the downspout is inconspicuous, it plays a key role in protecting the wall foundation and preventing rainwater erosion. Traditional downspouts are mostly made of PVC or spliced metal pipes, which suffer from stubborn problems such as aging, low strength, and joint leakage.
The launch of the For Metal Colored Steel Round Shape Downspout Roll Forming Machine has completely changed this situation. It adopts the one-time round forming technology of the whole roll metal strip, producing precise roundness of the downspout without longitudinal welds, combining the strength of metal with the smooth drainage performance of round pipes, making it an ideal choice for modern building drainage systems.
Application scenarios: From residential buildings to large factories
The circular downspout forming machine is widely used in roof drainage and rainwater collection systems of various buildings.
• Residential villas and self built houses
The exterior drainage of modern and European style villas and rural self built houses. The round tube has an elegant and smooth shape, combined with square rainwater buckets, elbows and other accessories, seamlessly integrating with the building facade, enhancing the overall aesthetics. The combination of metallic texture and various color coatings (milky white, dark green, coffee, etc.) can meet the needs of different decorative styles.
• Industrial plants and warehouses
Roof rainwater drainage system for large-span factory buildings. The circular tube has good rigidity and strong wind resistance, and can adapt to long-distance vertical suspension; Combined with large-diameter pipes, the single pipe drainage capacity far exceeds that of PVC pipes, significantly reducing the number of downspouts and saving installation costs.
• Public buildings and school hospitals
Rainwater pipes on the exterior walls of densely populated places such as government office buildings, schools, hospitals, etc. Metal round pipes have a high fire rating (non combustible material), without the hidden danger of toxic smoke generated by PVC pipe combustion, and have better safety performance.
Why choose our circular downspout forming machine?
• Stable Forming: Heavy duty frame paired with precision rollers ensures long-term stability of roundness without flattening or collapsing
• Smooth incision: hydraulic cutting+synchronous tracking, no burrs or deformation at the pipe mouth
• Foolish operation: PLC touch screen control, one click setting of length/quantity, can be operated by ordinary workers
• Complete accessories: Can be used to produce molds for accessories such as drainage buckets, elbows, and pipe clamps, providing one-stop supply
Product Attributes :
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1.Formed Material
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PPGI,GI,AI
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Thickness:0.4-0.6mm
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2.Decoiler
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Hydraulic automatic decoiler
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Manual decoiler(will give you as free）
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3.Main body
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Roller station
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22 rows(As your requirement)
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Diameter of shaft
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70mm solid shaft
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Material of rollers
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45# steel, hard chrome plated on the surface
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Machine body frame
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350 H steel
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Drive
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Chain transmission
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Dimension(L*W*H)
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8500*1000*1200(customize)
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Weight
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5.5T
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4.Cutter
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Automatic
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cr12mov material, no scratches, no deformation
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5.Power
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Motor Power
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7.5KW
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Hydraulic system power
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7.5KW
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6.Voltage
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380V 50Hz 3Phase
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As your requirement
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7.Control system
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Electric Box
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Customized(famous brand)
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Language
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English(Support multiple languages)
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PLC
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Automatic production of the whole machine. Can set batch, length, quantity, etc.
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18.Forming Speed
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8-10m/min
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The speed depends on the shape of the tile and the thickness of the material.
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Pattern diagram:
Core features: seamless, efficient, wind resistant
1. Accurate roundness and smooth drainage
Using high-precision rolling rolls, the formed circular tube has a small roundness error and a smooth inner wall. Compared with square or special-shaped downpipes, circular section has the best hydraulic radius and the smallest drainage resistance. It can discharge water quickly even under heavy rainstorm conditions to prevent water from flowing back into the roof area.
2. No longitudinal welds, never leaking water
Traditional downspouts often use interlocking or welded structures, and the joints are prone to rust and leakage after long-term use. The round pipes produced by this equipment adopt a double locking edge biting or adhesive sealing overlapping structure, and the pipe body is integrated as a whole, eliminating the hidden danger of longitudinal leakage from the root. The service life can reach more than 20 years.
3. Impact resistance and wind resistance
Using high-strength galvanized sheet as the substrate, the wall thickness can reach 0.6-1.2mm, and the pipe body has good rigidity, which can resist external impacts such as hail and tree branches. The special pipe clamp connection method enables the system to have excellent wind resistance, especially suitable for typhoon prone areas.
4. Fixed length production, easy installation
The equipment is equipped with a flying saw or hydraulic cutting device, which can be set to any desired length (usually 2-4 meters) with an error controlled within ± 1mm. Ready to manufacture, no need for secondary cutting on site, snap on or plug-in connections increase installation efficiency by more than 50%.
5. One machine with multiple uses and adjustable specifications
By replacing some of the rollers or adjusting the roller gaps, one device can produce circular pipes of various diameter specifications (common diameters: 60mm, 80mm, 100mm, 120mm, etc.) to meet the drainage needs of different roof areas and rainfall.
