Square Downpipe Roll Forming Machine

A Square Downpipe Roll Forming Machine is specialized industrial equipment designed to fabricate square or rectangular downpipes used primarily in building drainage systems. These machines utilize a continuous roll forming process to shape metal coils into precise, closed-profile pipes ideal for channeling rainwater from roofs to drainage systems.

Key Components

Decoiler: Holds and feeds the metal coil into the main roll forming machine.

Feeding System: Ensures consistent material entry into the rollers straightly, no block and won’t go to side.

Roller Stations: Sequential sets of rollers that incrementally bend the metal strip into a square/rectangular cross-section.

Cutting Mechanism: Hydraulic or servo-driven systems to cut pipes to desired lengths. We will need square pipe shrink machine and bending machine as full set for square pipe installation.

Control Panel (PLC): Automates operations for precision and efficiency.

Forming Process

Uncoiling: Metal strip is fed from the decoiler.

Roll Forming: Passes through 20-24 roller stations, each progressively shaping the metal into a square profile.

Seaming Edge Rollers: Edges are joined via interlocking seams or welding (if required).

Cutting: Pipes are cleanly cut to specified lengths (e.g., 2m, 3m).

Applications

Residential and commercial gutter systems.

Industrial drainage solutions.

Agricultural and infrastructure projects requiring durable water management.

Considerations

Maintenance: Regular lubrication and alignment checks for rollers.

Material Handling: Proper storage of coils to prevent deformation.

Safety: Integrated emergency stops and guards to protect operators.

Machine Detailed Parameters

3TonX500mm manual un-coiler

Coil Inner-diameter=510±30mm.

Coil Outer-diameter Max. 1300mm；

Load Capacity: Max. 3 Tons;

Coil Width Max. 500mm；

Roll Forming M/C

Gear/Sprocket driving;20-step to form 

Machine frame: H350 beam, side wall thickness: 18mm

Rollers manufactured from 45# steel, CNC lathes, hard Chrome Coated

Shafts Diameter=ф75mm, Precision Machined, fine Polished

Main motor =7.5KW, Frequency speed control

Forming speed: Approx. 10-15m/min (not include crimping action speed)

Whole producing line can produce straight down pipe and elbow shape down pipe

If no need elbow function, loose the mold freely

Hydraulic cutting device

Stop to cut, post cut, post blanking cutting

Cutting blades material: Cr12, heat treatment

Pump motor: 4KW, Cutting pressure=Max.10Mpa

Cutting action pipe shrink action and down pipe elbow action share the hydraulic system

Pipe Shrink length: about 50mm

PLC Control System

Control the quantity & cutting length automatically.

Combined with：PLC, inverter, Touch Screen, Encoder, etc

Cut-to-length tolerance≤±2 mm

Square Downpipe Roll Forming Machines offer an efficient, scalable solution for manufacturing durable drainage components. Their adaptability and automation make them indispensable in modern construction, ensuring high-quality output with minimal operational downtime.