

Custom Roll Forming Engineering
We design custom roll forming machines around your profile, material, production speed and automation requirements.
Engineering ServicesComplete Production Line Solutions
From decoiling and punching to roll forming, cutting and stacking, we deliver complete production line solutions.
Explore SolutionsQuality Control & Factory Testing
Every roll forming machine is inspected and tested before shipment to confirm quality, accuracy and reliable operation.
Quality ControlGlobal Installation & Technical Support
We provide installation, commissioning, operator training and long-term technical support for customers worldwide.
Technical Support
Professional Cold Roll Forming Machine Manufacturer & Supplier
Unionindus is a trusted manufacturer of roll forming machines and automated production lines, with over 20 years of industry experience. Based in Botou, China, we provide high-precision, Industry 4.0-ready solutions to customers worldwide.
Our product range includes fully automatic CZ purlin machines with fast size change, roofing sheet machines, sandwich panel lines, and guardrail and floor deck systems. Equipped with advanced servo control, our machines ensure stable performance, high efficiency, and precise output.
We also deliver complete turnkey solutions—from technical consultation and custom design to installation and 24/7 global support. With speeds up to 30 m/min and ±1 mm tolerance, our solutions help reduce waste and improve ROI.
- PRECISION
- INTEGRITY
- INNOVATION
- DURABILITY
- DEDICATION
- PARTNERSHIP
Featured equipment
Featured Roll Forming Machines & Production Lines
Cold Forming MachineRoofing Sheet Roll Forming Machine
Unionindus supplies customized roofing sheet roll forming machines for producing metal roofing panels, wall cladding sheets, corrugated sheets and trapezoidal profiles. Stable forming, accurate cutting, PLC control and project-based machine design for global building material manufacturers.
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Cold Forming MachineC/Z Purlin Roll Forming Machine
Unionindus supplies C/Z purlin roll forming machines for steel structure purlin production, with automatic size adjustment, punching, cutting and PLC control for building frame manufacturers.
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Cold Forming MachineDoor Frame Roll Forming Machine
Unionindus supplies door frame roll forming machines for producing steel door frames, metal door jambs and fire door frame profiles with punching, forming and cutting systems.
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Cold Forming MachineDownspout Roll Forming Machine
Unionindus manufactures downspout roll forming machines for producing square, rectangular or customized rainwater downpipes for metal roofing drainage systems.
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Cold Forming MachineHighway Guardrail Roll Forming Machine
Unionindus supplies highway guardrail roll forming machines for producing W beam, thrie beam and road safety barrier profiles with punching, forming and hydraulic cutting systems.
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Cold Forming MachineRidge Cap Roll Forming Machine
Unionindus provides ridge cap roll forming machines for producing metal ridge caps, roof capping profiles and roofing trim components for complete metal roofing systems.
View machineTechnical Advantages of Our Roll Forming Machine
We deliver high-performance, heavy-duty roll forming solutions with industry-leading precision
High Precision Roll Forming System
- Precision Roll Forming: High-precision rollers and optimized forming stations ensure consistent profiles, accurate dimensions, and excellent finished-product quality.
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Industries We Serve
From construction and steel structures to logistics racking, infrastructure, renewable energy, and interior systems—explore typical equipment lines and end products for each sector, then reach out for a tailored line layout.






Building Materials Manufacturing Solutions
- Roofing Sheet Manufacturing
- Wall Panel Production
- Floor Deck Manufacturing
- Ridge Cap Production
- Gutter & Rainwater System Manufacturing
- Metal Roofing Accessories Production
Latest news
Company updates, product launches, and industry insights from Unionindus.


Roofing Sheet Roll Forming Machine Completed Factory Testing Before Shipment
Unionindus recently completed factory testing for a customized roofing sheet roll forming machine before shipment. The production line is designed for producing metal roofing sheets from galvanized steel, pre-painted ste

Metal Roofing Demand Is Driving New Investment in Roofing Sheet Roll Forming Machines
Metal roofing is becoming an increasingly important part of modern construction. From industrial warehouses and steel structure factories to agricultural buildings, logistics centers and commercial roofing projects, meta
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