Profile Forming Line
Open, Closed & Custom
Forever machinery supplies custom-engineered profile forming lines for a wide range of open and closed cold-formed steel sections. backed by 30 years of roll form process design expertise, every line is tailored to the client’s specific profile, material, and production requirements — from simple c-channels to complex welded structural sections.
Profile Forming Line
Open, Closed & Custom
Forever Machinery supplies custom-engineered profile forming lines for a wide range of open and closed cold-formed steel sections. Backed by 30 years of roll form process design expertise, every line is tailored to the client's specific profile, material, and production requirements — from simple C-channels to complex welded structural sections.
8-630
(mm) Max section size
11
MODELS
100+
Lines to Youfa Group
30+
ERW Expertise
What is a Profile Forming Line?
A profile forming line is a continuous roll-forming production system that progressively bends flat steel strip through a series of driven roll stands, shaping it into a defined cross-sectional profile. unlike standard erw tube mills that produce round, square, or rectangular pipe, profile forming lines are configured for a wide variety of structural and architectural sections — both open (unseamed) and closed (welded or lock-seamed). forever machinery designs and supplies all three categories, engaging directly with customers on roll form process design for each unique product.
── Introduction
What is the Profile Forming Line?
A profile forming line is a continuous roll-forming production system that progressively bends flat steel strip through a series of driven roll stands, shaping it into a defined cross-sectional profile. Unlike standard ERW tube mills that produce round, square, or rectangular pipe, profile forming lines are configured for a wide variety of structural and architectural sections — both open (unseamed) and closed (welded or lock-seamed). Forever Machinery designs and supplies all three categories, engaging directly with customers on roll form process design for each unique product.
Tailored solutions
Unlike off-the-shelf equipment, each line is configured to the client's product mix — including optional punching, notching, welding, or perforating stations.
Progressive roll
forming
Flat strip passes through a series of driven roll stands, each adding incremental bend until the target cross-section is achieved — with no cutting or material removal.
Custom roll tooling
Roll tooling is designed and manufactured to the customer’s specific profile drawing using German COPRA software, with full FEA analysis and verification before production.
Open & closed
profiles
Lines cover open sections (C, U, Z, angle, purlin, rail) and closed sections (welded or lock-seam tube, structural enclosures, automotive profiles).
Progressive roll forming
Flat strip passes through a series of driven roll stands, each adding incremental bend until the target cross-section is achieved — with no cutting or material removal.
Custom roll tooling
Roll tooling is designed and manufactured to the customer's specific profile drawing using German COPRA software, with full FEA analysis and verification before production.
Open & closed profiles
Lines cover open sections (C, U, Z, angle, purlin, rail) and closed sections (welded or lock-seam tube, structural enclosures, automotive profiles).
Tailored solutions
Unlike off-the-shelf equipment, each line is configured to the client's product mix — including optional punching, notching, welding, or perforating stations.
Three profile forming line categories
Each category covers a distinct class of output profile and machine configuration. all lines are custom-designed to the client's section geometry.
Closed Profile Section Forming
Produces closed hollow sections — welded or lock-seamed — including non-round tubes, oval sections, D-shaped profiles, and custom automotive or structural enclosure shapes.
- Double cantilever gear drives; producing width adjustable continuously — width and height both changeable
- 20 rolling stations; main machine driven by AC motor with reducer and high-precision linear rail
- Roll forming process designed with German COPRA software; full FEA analysis and verification carried out on all tooling
- Combined roller structure minimises line speed differential and forming resistance; ensures dimensional accuracy and stability
- Machine base and transmission in welded hardened structure; rollers manufactured in 45# steel
Open Profile Section Forming
Produces profiles with no welded seam — C-channels, U-channels, Z-profiles, angles, purlins, guardrails, door frames, and roofing sections. Roll tooling is custom-designed to the client's cross-section.
- Decoiler → levelling → multi-stand progressive roll forming → flying saw or press cutting
- Roll stand count and profile complexity determined by client's target section geometry
- Optional in-line punching, notching, or embossing stations available
- Custom COPRA-designed roll tooling for each product; section accuracy assured through process simulation
Other Profile Forming Lines
Flexible multi-product lines for specialty profiles, combining press forming and roll forming in a single line — suitable for complex sections, perforated profiles, or multi-step formed products.
- Uncoiler → butt welding platform → levelling & feeding → press (2 mould sets with feeding & guiding device)
- Roll forming machine with two sets of quick-change cassettes for rapid section changeover
- Cutting device → automatic stacker
- Full pneumatic, hydraulic, and electrical control system integrated throughout the line
Line Types
Three profile forming line categories
Each category covers a distinct class of output profile and machine configuration. All lines are custom-designed to the client's section geometry.
Closed Profile Section Forming
Produces closed hollow sections — welded or lock-seamed — including non-round tubes, oval sections, D-shaped profiles, and custom automotive or structural enclosure shapes.
- Double cantilever gear drives; producing width adjustable continuously — width and height both changeable
- 20 rolling stations; main machine driven by AC motor with reducer and high-precision linear rail
- Roll forming process designed with German COPRA software; full FEA analysis and verification carried out on all tooling
- Combined roller structure minimises line speed differential and forming resistance; ensures dimensional accuracy and stability
- Machine base and transmission in welded hardened structure; rollers manufactured in 45# steel
Open Profile Section Forming
Produces profiles with no welded seam — C-channels, U-channels, Z-profiles, angles, purlins, guardrails, door frames, and roofing sections. Roll tooling is custom-designed to the client’s cross-section.
- Decoiler → levelling → multi-stand progressive roll forming → flying saw or press cutting
- Roll stand count and profile complexity determined by client’s target section geometry
- Optional in-line punching, notching, or embossing stations available
- Custom COPRA-designed roll tooling for each product; section accuracy assured through process simulation
Other Profile Forming Lines
Flexible multi-product lines for specialty profiles, combining press forming and roll forming in a single line — suitable for complex sections, perforated profiles, or multi-step formed products.
- Uncoiler → butt welding platform → levelling & feeding → press (2 mould sets with feeding & guiding device)
- Roll forming machine with two sets of quick-change cassettes for rapid section changeover
- Cutting device → automatic stacker
- Full pneumatic, hydraulic, and electrical control system integrated throughout the line
What profile forming lines produce
Profile forming lines serve manufacturers across construction, infrastructure, automotive, and industrial sectors — producing both standard and custom cold-formed steel sections.
Structural sections
C-purlins, Z-purlins, angles, and U-channels for steel framing, roofing structures, and industrial buildings.
Roofing & cladding profiles
Corrugated sheets, standing seam panels, ridge caps, and flashings for commercial and industrial roofing systems.
Door & window frames
Custom open profiles for steel door frames, window sections, and curtain wall components.
Automotive structural profiles
Closed and open sections for vehicle chassis reinforcement, sill plates, cross-members, and body-in-white components.
Guardrails & safety barriers
Highway guardrail, pedestrian barriers, and safety fencing profiles produced to national standards.
Custom & specialty profiles
Any cold-formed steel section not covered by standard tube mill output — designed to client drawings and verified by FEA simulation before tooling manufacture.
Functions
What profile forming lines produce
Profile forming lines serve manufacturers across construction, infrastructure, automotive, and industrial sectors — producing both standard and custom cold-formed steel sections.
Structural sections
C-purlins, Z-purlins, angles, and U-channels for steel framing, roofing structures, and industrial buildings.
Roofing & cladding profiles
Corrugated sheets, standing seam panels, ridge caps, and flashings for commercial and industrial roofing systems.
Door & window frames
Custom open profiles for steel door frames, window sections, and curtain wall components.
Automotive structural profiles
Closed and open sections for vehicle chassis reinforcement, sill plates, cross-members, and body-in-white components.
Guardrails & safety barriers
Highway guardrail, pedestrian barriers, and safety fencing profiles produced to national standards.
Custom & specialty profiles
Any cold-formed steel section not covered by standard tube mill output — designed to client drawings and verified by FEA simulation before tooling manufacture.
How the mill works
Each of the three line categories follows a distinct process configuration. The closed-profile and specialty lines include additional forming or press stations not present in open-profile lines.
Closed profile section forming
Welded / lock-seam hollow sections
Strip coil >
Decoiling >
Levelling >
Roll forming
(20 stations) >
Profile closing /
welding >
Sizing &
straightening >
Flying saw
cutting >
HF welding
(corner seam) >
Finished section
collecting >
Open profile section forming
C / U / Z / angle / purlin / rail
Strip coil >
Decoiling >
Levelling &
feeding >
Progressive roll
forming >
Profile closing /
welding >
Optional: punch /
notch / emboss >
Flying saw /
press cutting >
Section run-out
& stacking >
Specialty / other profile forming
Quick-change cassette line
Strip coil >
Uncoiling >
Butt welding
platform >
Levelling &
feeding >
Profile closing /
welding >
Press
(2 mould sets) >
Roll forming
(cassettes ×2) >
Section run-out
& stacking >
Cutting device >
Automatic stacker >
Process Flow
How the mill works
Each of the three line categories follows a distinct process configuration. The closed-profile and specialty lines include additional forming or press stations not present in open-profile lines.
Closed profile section forming welded / lock-seam hollow sections 4
Note: ERW32 includes a double-dump run-out conveyor for compact tube handling. Accumulation loop allows uninterrupted running during coil changes.
Open profile section forming C / U / Z / angle / purlin / rail
Note: Seam annealer relieves weld-zone residual stress for pressure-service compliance. Hydrostatic testing and ultrasonic inspection are mandatory before packing.
Specialty / other profile forming quick-change cassette line
Note: Seam annealer relieves weld-zone residual stress for pressure-service compliance. Hydrostatic testing and ultrasonic inspection are mandatory before packing.
── Applications
Industries served
Profile forming lines supply cold-formed sections to a broad range of manufacturing and construction industries worldwide.
Construction
Purlins, channels, framing
Roofing
Panels, flashings, ridge caps
Automotive
Chassis & body profiles
Infrastructure
Guardrails, barriers
Door & window
Frames, curtain wall
Industrial
Custom specialty sections
Internationally Recognized Quality
We pride ourselves in our 30 years' experience in roll form engineering and ERW tube mill design. We look after our customers every step of the way throughout the entire manufacturing lifecycle and offer our insights & services on optimizing their equipment.
ISO Certified Manufacturing
Strict adherence to global quality management systems.
30+ Years of Excellence
Decades of proven engineering and industrial innovation.
Global Export Network
Reliably delivering heavy machinery solutions worldwide.