The circular downspout forming machine is a specialized cold bending equipment for building roof drainage systems. It can continuously roll color coated/galvanized/aluminum coils into circular rainwater downspouts, with high drainage efficiency and good sealing performance. It is widely used in rainwater drainage projects such as factories, warehouses, villas, and public buildings.

One Main technical parameters

• Equipment model: Circular downspout forming machine
• Applicable plates: color coated steel plate, galvanized plate, cold-rolled plate, aluminum plate
• Plate thickness: 0.3-0.8mm
• Feed width: 250-350mm (customized according to pipe diameter)
• Molding pipe diameter: 75mm, 80mm, 90mm, 100mm (can be customized according to needs)
• Molding process: 18-22 rows
• Forming speed: 10-18m/min (variable frequency infinitely adjustable)
• Host power: 5.5KW (cycloidal pinwheel reducer)
• Hydraulic station power: 3-4KW
• Shear accuracy: ± 1mm
• Transmission mode: 1-inch chain wheel chain transmission, internal hanging transmission
• Rack material: 300H steel welded, medium plate thickness 16-20mm
• Forming shaft: 45 # steel quenched and tempered, diameter ≥ 70mm
• Roll material: 45 # steel forging+hard chrome plating (HRC58-60)
• Dimensions: 6800 × 1500 × 1400mm
• Equipment weight: approximately 4.0T

Equipment structure composition

• Uncoiler: carrying coil (inner diameter 508mm, outer diameter ≤ 1200mm), pneumatic brake, automatic feeding, compatible with standard coil.
• Leveling guide mechanism: Multi roller leveling+double-sided guide wheels, correcting the flatness of the board and preventing offset and jamming.
• Forming host: 18-22 rows of progressive cold bending rollers ensure roundness and straightness, and the rollers are plated with hard chrome for wear resistance and durability.
• Spiral locking mechanism: The side of the pipe body is sealed with a spiral bite, without welding, waterproof and leak proof, and the inner wall is smooth.
• Hydraulic/Flying Saw Cutting System: Servo fixed length cutting, blade made of Cr12MoV quenched, with a smooth and burr free cut and no deformation of the pipe mouth.
• PLC control system: touch screen+PLC, parameter memory, automatic counting, length measurement, fault alarm, intuitive and convenient operation.
• Discharge rack: for receiving and stacking finished products, with optional automatic stacking to prevent surface scratches.

core advantage

• Heavy duty integral frame: Made of 300H steel integral welding, with stress relief treatment after welding, it will not deform or shake under long-term heavy load.
• Precision molding process: Progressive arc rolling, precise roundness, good straightness, suitable for high-strength continuous production.
• Spiral lock edge sealing: The pipe body is tightly interlocked, waterproof and anti-seepage, the inner wall is smooth, the drainage resistance is small, and the drainage efficiency is better than that of square pipes.
• Intelligent control is convenient: touch screen operation, can set length, quantity, speed, one click storage parameters, beginners can quickly get started.
• Stable guide column shearing: The guide column hydraulic shearing has a cutting accuracy of ± 1mm, and the finished product does not require secondary trimming.
• Efficient and cost-effective: With one-time feeding, continuous molding, and automatic cutting, the daily production can reach 2000-3000 meters, meeting the needs of large-scale orders.

Performance characteristics

• Stable molding: flat board shape, standard roundness, tight locking edges, excellent waterproof and strength performance.
• Durable and reliable: precision machining of core components, minimal wear and tear, low failure rate during continuous operation, and long service life.
• Easy to operate: Humanized design of the electronic control system, intuitive parameter settings, and single person operation to complete production.
• Low operation and maintenance costs: simple structure, easy maintenance, only regular lubrication is needed for stable operation in daily life.

Five Scope of application

• Industrial buildings: steel structure factory buildings, warehouses, locomotive depots roof drainage systems.
• Civil buildings: roof rainwater discharge for residential buildings, villas, and new rural construction.
• Public venues: sports venues, exhibition halls, scenic area building drainage engineering.
• Supporting projects: fencing, simple houses, sunrooms and other ancillary drainage systems.