ZhongTuo Automatic Square Downspout Rainwater Pipe Roll Forming Machine ZTRFM Automatic Metal Downpipe Forming Machine

Automatic Square Downspout Rainwater Pipe Roll Forming Machine

This heavy-duty Zhongtuo automatic square downspout roll forming machine is an advanced high-speed rainwater downpipe production line engineered for manufacturing premium corrugated square and rectangular rainwater downpipes with integrated continuous lock-seams. Designed for processing color coated steel (PPGI), galvanized steel (GI), and architectural aluminum coils in thicknesses from 0.5 mm to 1.2 mm (rolling thickness range 0.8–1.2 mm), this 14.5-meter long 22-station forming line features solid Ø75 mm shafts, heavy chain drive transmission, an energy-saving 13 kW drive power unit, an automated PLC touchscreen control system, and a hydraulic profile post-cutter with burr-free square pipe dies, delivering finished lock-seam downpipes at speeds of 15 to 20 m/min.

• Corrugated Square & Rectangular Profiles: Precision engineered for architectural rainwater downpipe cross-sections (FX100-75 100×75 mm, FX134-93 134×93 mm, 144×108 mm, 144×122 mm, 83×57 mm) with fluted side walls for added rigidity and high water drainage flow.
• Automatic Continuous Lock-Seaming: Multi-stage progressive side forming and lock-closing roller stations seal pipe edges continuously into tight, leak-proof mechanical lock seams without welding.
• 22 Heavy-Duty Forming Stations: Features 22 rows of precision machined forming stands with solid Ø75 mm shafts ensuring smooth metal flow and tight dimensional accuracy without surface paint scratching.
• Hydraulic Profile Post-Cutter: Enclosed hydraulic cutting station equipped with custom square pipe profile dies delivers clean, deformation-free, burr-free cuts on the fly.
• Energy-Saving 13 kW Chain Drive: High-efficiency 13 kW electric motor with chain transmission ensures reliable torque delivery and low energy consumption across high-volume production runs.
• Automated PLC Touchscreen Console: Multi-voltage compatible (380V / 220V / 440V) Delta/Siemens PLC control system allows automatic length measurement, batch counting, and user-friendly operation.

Technical Specifications

22-Station Roll Forming Line & Infeed Section

The 14.5-meter long heavy bed features 22 sequential roll forming passes. The flat sheet strip is fed through precision lateral entry guides, progressively channeled into a corrugated rectangular profile, and seamlessly locked at the seam with high mechanical strength.

Hydraulic Profile Cutter & Technical Drawings

The exit cutting unit utilizes custom profiled blade dies that match the fluted rectangular perimeter of the downspout. The hydraulic cylinder provides powerful, clean shearing without crushing the hollow pipe. Engineering drawings support standard models FX100-75, FX134-93, and round options.

Frequently Asked Questions

What downspout profiles can this machine produce?
It produces corrugated square and rectangular downspout pipes (e.g. FX100-75 100×75 mm, FX134-93 134×93 mm, 144×108 mm, 144×122 mm, 83×57 mm) with continuous longitudinal lock-seams.

What materials and thickness ranges are supported?
It processes color coated steel (PPGI), galvanized steel (GI), and aluminum coils in thicknesses from 0.5 mm to 1.2 mm (rolling thickness 0.8–1.2 mm).

How many forming stations and what is the production speed?
The machine features 22 forming stations with solid Ø75 mm shafts and achieves line speeds of 15 to 20 m/min powered by a 13 kW motor drive.

What warranty and quality test reports are provided?
It includes a 2-year warranty on the machine and core components, machinery test report, and video outgoing-inspection before shipping.