1. Overview

1.2 Profile
The metal roof panels produced use high-quality galvanized or color-coated steel coils, typically 0.3-0.8mm thick. The upper layer forms corrugated profiles, while the lower layer produces trapezoidal shapes. Both profiles feature strong structural rigidity, corrosion resistance, and are ideal for roofing and decking applications in various industries.
Material: Galvanized Steel / PPGI / Aluminum	Thickness: 0.3-0.8mm
Yield strength: 200 - 350 Mpa	Tensil stress: 200 -350 Mpa

1.3 Production Process

Flow Chart: Hydraulic Decoiler → Entry Guide → Roll Former → Hydraulic Punch → Hydraulic Cutter → Run-out Table

Process: The roll former with dual-layer guide pillar structure ensures precise, stable forming of both corrugated and trapezoidal profiles. Chain drive offers reliable power transmission, while chain cover protects both operator and components. Hydraulic cutter provides accurate cutting, enabling efficient high-quality panel production.

2. Technical Parameters

2.1 Decoiler
Structure	Double-support
Working Form	Manual, motorized, or hydraulic
Loading Capacity	5T/7T/10T, customizable
Coil Width	1250mm, customizable
Inner Diameter	Φ450 – Φ550 mm
Out Diameter	1500 mm
Model	DC-MU1

2.2 Optional Upgrade: Decoiler
Motorized Decoiler	Stand structure decoiler, motorized or hydraulic	Hydraulic decoiler with loading car

2.3 Guiding Device With Pre-Cut Broaching Shear
Guiding Roller	Adujust the coil feeding width
Pre-cut Broaching Shear	Cut the steel coil before roll forming
Digital Display	See the feeding width directly

2.4 Roll Forming Machine
Type	Double layer
Working Speed	Around 20 m/min
Structure	Wall panel type. Optional: Cast-iron stands or guide pillar
Driving System	Chain system. Optional: Gearbox
No. of Forming Stations	18 stands
Shaft Diameter	70mm solid shaft
Motor Power	5.5 Kw
Roller Material	45# steel polished and chromed HRC58-62°
Shaft Material	High grade 45# steel polished(CNC lathe)
Steel Coil Material	PPGI or GI
Steel Coil Thickness	0.25-0.8mm

2.5 Optional Upgrade: Cover
Mounted On The Inside: No Cover Required	Solid Cover For Chain	Mesh Safety Cover

2.6 Cutter
Common Power Type	Hydraulic. Optional: motor type.
Hydraulic Power	4-5.5Kw, customizable
Blade Material	Cr12 Mov
Hardness	With quenched treatment HRC 58 – 62°

2.7 Product Collection
Solution 1	Run-out table	Solution 2	Auto stacker
Power Type	Non-powered, mainly manual handling	Power Type	Motorized, 3Kw
Dimension	Length 4m, customizable	Dimension	Length 4m-6m, customizable

2.9 Hydraulic Power Unit (HPU)
Motor Power	5.5Kw
Oil Required	N32 or N46 hydraulic oil is available
Design	The hydraulic station has a fan cooling system
Optional	It can be installed on or inside the roll former to save space

3. Production Line Components

4. Customization Options

This roll forming line supports customized tooling and forming rolls to produce specific trapezoidal and corrugated panel dimensions. Options include adjustable profile depth, pitch length, coil width adaptation, and hydraulic cutting length settings. Additional customizations can involve surface embossing, pre-punched holes, and integration with automated stacking systems tailored to client needs.

Metalign is a trusted manufacturer specializing in cold roll forming machine production and custom roll forming solutions. Located in Botou City, the heart of China’s roll forming industry, we bring over 30 years of combined technical and engineering experience to every project.

Our team is dedicated to designing and building precision roll forming lines tailored to your profile needs — from roofing and purlin lines to shelving, door frames, highway guardrails, and more. We are known for our practical designs, robust structures, and responsive after-sales support.

With a strong reputation in global markets including North America, Europe, Southeast Asia, and the Middle East, Metalign is committed to helping customers improve efficiency, reduce costs, and gain a competitive edge.