Double Layer IBR & Trapezoidal Roof Sheet Roll Forming Machine

The ZTRFM Double Layer IBR & Trapezoidal Roofing Sheet Roll Forming Machine is an advanced production solution designed for manufacturers who need to produce different types of metal roofing panels with one compact production line.

Unlike traditional roll forming machines that can only manufacture one profile, the double layer design combines two independent forming systems in one machine structure. Customers can produce IBR roofing sheets, trapezoidal panels, corrugated sheets or other customized roofing profiles according to their market requirements.

This machine is especially suitable for roofing sheet factories, building material suppliers and steel structure companies that want to expand product variety while saving workshop space and investment costs.

Two Roofing Profiles in One Machine

The biggest advantage of the double layer roofing machine is its flexible production capability.

A traditional roll forming machine usually produces only one type of roofing sheet. However, many customers need to supply different roofing products for various construction projects. Purchasing multiple machines requires more investment, more production space and higher maintenance costs.

The double layer structure solves this problem by combining two forming units into one production line.

The upper and lower forming sections work independently. Operators can select the required production layer according to the roofing profile that needs to be manufactured.

Possible combinations include:

• IBR sheet + trapezoidal sheet

• Trapezoidal sheet + corrugated sheet

• Corrugated sheet + other roofing profiles

• Customized double-layer combinations according to customer requirements

This flexible design allows manufacturers to respond quickly to different customer orders.

Automatic Roofing Sheet Production Process

The complete production process includes:

Uncoiling → Feeding → Guiding → Roll Forming → Length Measuring → Hydraulic Cutting → Finished Sheet Receiving

After the steel coil is installed on the decoiler, the material enters the selected forming layer through the feeding system.

The sheet is gradually shaped through multiple precision rollers until the final roofing profile is completed. After reaching the preset length, the automatic cutting system separates the finished panel.

The PLC control system manages the production process automatically, reducing manual operation and improving production consistency.

Independent Double-Layer Forming Structure

The double-layer design does not simply combine two machines together. Each forming layer has its own dedicated roller system designed for the corresponding roofing profile.

This allows each profile to maintain accurate forming quality.

The roller design is developed according to the finished product drawing. Different roofing profiles have different rib shapes, wave structures and connection requirements, so precise roller design is essential for producing high-quality finished panels.

The independent forming structure also makes future maintenance and adjustment more convenient.

Precision Roll Forming System

The forming section is the core part of the production line.

The flat steel sheet passes through multiple forming stations and is gradually transformed into the final roofing profile. Progressive forming helps distribute material deformation evenly and improves the stability of the finished panel.

High-quality forming rollers are precisely machined to maintain consistent profile dimensions. Surface treatment can improve roller durability and help protect coated steel materials during production.

A stable forming system helps ensure:

• Smooth panel surface

• Consistent rib shape

• Accurate profile dimensions

• Reduced material deformation

• Long-term production reliability

Strong Machine Frame Design

Because the machine contains two independent forming systems, the overall structure requires sufficient strength and stability.

The main frame is manufactured with a heavy-duty welded structure to provide reliable support for rollers, shafts and transmission components.

A rigid machine frame helps reduce vibration during operation and keeps the forming system properly aligned.

This is particularly important when producing long roofing panels, where even small forming deviations can affect installation accuracy.

Suitable Raw Materials

The machine can process various metal materials commonly used in roofing production, including:

• PPGI pre-painted galvanized steel

• PPGL pre-painted Galvalume steel

• Galvanized steel

• Aluzinc steel

• Color-coated steel coils

Different materials and coating types can be selected according to local construction requirements.

Before manufacturing, customers can provide their raw material information and finished product drawings. Our engineers will design the forming system according to the actual production requirements.

PLC Automatic Control System

The production line is equipped with an automatic PLC control system and touch-screen interface.

Operators can set production information through the control panel, including finished sheet length and production quantity.

During operation, the PLC coordinates the forming system, length measuring device and cutting system automatically.

The control system can be customized according to different countries, including operating language and electrical standards.

This makes the machine easier to operate for customers in different regions.

Hydraulic Cutting System

After the roofing panel reaches the required length, the hydraulic cutting system automatically completes the cutting process.

The cutting unit is designed according to the roofing profile shape to maintain the appearance and quality of the finished sheet.

Automatic cutting provides several advantages:

• Improved production efficiency

• Reduced manual measurement

• Consistent panel length

• Easier batch production management

Applications of Finished Roofing Sheets

IBR, trapezoidal and corrugated roofing panels produced by this machine are widely used in many construction projects.

Applications include:

• Industrial factories

• Warehouses

• Workshops

• Commercial buildings

• Agricultural structures

• Steel structure projects

• Residential roofing

• Garages

• Wall cladding systems

• Prefabricated buildings

The ability to produce multiple roofing profiles makes this machine suitable for manufacturers serving different construction markets.

Space-Saving Production Solution

For many roofing sheet manufacturers, workshop space is an important consideration.

Installing two separate machines requires additional floor space, more operators and higher investment.

The double-layer roofing machine provides a compact solution by integrating two production capabilities into one line.

It allows customers to increase product variety without significantly expanding their production area.

Customized Roofing Machine Service

Every roofing market has different profile requirements.

ZTRFM provides customized roll forming solutions according to customer drawings, samples and production requirements.

Customization options include:

• Roofing profile design

• Material type

• Coil width

• Forming structure

• Cutting method

• Control system

• Decoiler system

• Receiving system

• Automation level

Customers can send their roofing sheet drawing or physical sample, and our technical team will evaluate the suitable machine design.

Optional Equipment

According to production requirements, the line can be equipped with additional automation equipment, including:

• Hydraulic decoiler

• Coil loading trolley

• Automatic feeding system

• Servo cutting system

• Finished sheet stacking system

These options help customers improve production efficiency and reduce manual handling.

Quality Inspection Before Delivery

Before shipment, the complete production line is assembled and tested in the factory.

The inspection process includes:

• Machine structure checking

• Roller alignment inspection

• Transmission system testing

• Electrical system testing

• Forming quality inspection

• Cutting performance testing

Trial production ensures that the finished roofing panels meet the confirmed requirements before delivery.

After-Sales Technical Support

ZTRFM provides technical support throughout the machine service life.

Support includes:

• Installation guidance

• Operation instructions

• Electrical drawings

• Remote technical assistance

• Troubleshooting support

• Spare parts service

Engineer installation service can also be arranged according to project requirements.

With professional design, manufacturing experience and customized solutions, ZTRFM provides reliable double-layer roofing sheet production equipment for customers worldwide.

Keywords:
double layer roofing machine,IBR roll forming machine,trapezoidal roof machine,corrugated sheet machine,roof panel making machine