Today, with the continuous growth of global demand for metal roofing materials, TR4 trapezoidal roof panels have become a popular choice for industrial plants, commercial buildings, and residential roof systems due to their excellent structural performance and wide applicability. The TR4 Trapezoidal Roof Sheet Panel Making Machine, as the core equipment for producing this type of sheet, is helping global roofing material manufacturers achieve dual breakthroughs in production capacity and quality with its high precision, high efficiency, and excellent durability.

What is TR4 trapezoidal roof panel forming machine?

The TR4 trapezoidal roof panel forming machine is a cold bending equipment designed to gradually roll galvanized, aluminum zinc coated, pre coated color coated and other metal coils through multiple rollers to form metal roof panels with four trapezoidal wave peaks. The "TR" in "TR4" represents Trapezoid, while "4" refers to the panel section containing four trapezoidal crests. This geometric structure endows the board with excellent load-bearing capacity and drainage performance.

This equipment usually consists of an uncoiler, a feed guide device, a forming host, a hydraulic shearing system, a PLC control system, and a discharge table, etc. It can achieve fully automated production from coil feeding to finished sheet output.

Core advantages of equipment：

1. High precision molding, stable quality
The TR4 forming machine uses 45 # high-quality steel rollers, which are quenched and plated with hard chromium on the surface. With precision machining and assembly processes, the width and length tolerances of the finished sheet can be controlled within ± 0.5mm. This level of precision ensures the perfect assembly of the panels on the construction site, reduces the workload of sealing treatment, and improves installation efficiency.

2. Efficient production capacity
Depending on the configuration, the production line speed of TR4 molding machine can reach 0-20 meters per minute, and the high-performance version can even reach 38 meters per minute. The equipment adopts a sprocket/gearbox transmission system to ensure stable output under high-intensity continuous operation.

3. Sturdy structure and long-lasting durability
The formed main frame adopts a welded structure of 350H steel, which is tempered to eliminate internal stress and effectively prevent deformation of the body. The rolling mill shaft is made of 40Cr steel, with a hardness of HB280 after quenching and tempering treatment. It is matched with Cr12 mold steel forming molds (quenching hardness HRC 56-62) to ensure long-term stable operation of the equipment. Under normal maintenance conditions, the service life of the rolling mill can reach 5-8 years, and the service life of the equipment main frame exceeds 10 years.

4. Flexible customization and wide adaptability
The equipment supports processing various metal coils with a thickness of 0.3-0.8mm, including galvanized sheet, aluminum zinc coated sheet, pre coated color coated sheet (PE/SMP/PVDF), etc. The feed width is compatible with the range of 914-1220mm, and the roll mold and forming pass can be customized according to the actual needs of customers.

Product Attributes:

Pattern diagram:

Application Areas：

The TR4 trapezoidal roof panel forming machine produces panels that are widely used in multiple building scenarios:

• Industrial buildings:
Large area roofs and walls of factory workshops, logistics warehouses, and production plants

• Commercial buildings:
Roof systems for markets, shopping malls, and agricultural storage facilities

• Civil buildings:
residential roofs, canopies, soundproof walls, and insulation board substrates

• Special scenario:
In conjunction with the arc-shaped forming device, it can produce arc-shaped TR4 boards for use in arched roofs, reducing the number of joints, especially suitable for rainy areas

TR4 profiles are particularly popular in South American and African markets such as Peru, South Africa, and Chile, and are the standard panel for local roofing projects. Its four peak trapezoidal structure provides good load-bearing capacity while requiring fewer intermediate supports, effectively reducing the overall project cost.

Frequently Asked Questions (FAQ)：

Q1: Can the TR4 molding machine produce other board types?

The standard TR4 molding machine is specifically designed for producing TR4 trapezoidal boards. If it is necessary to produce other plate types such as TR5, TR6, or corrugated plates, it can be achieved by replacing the rolling mill set, or by selecting a double-layer model and configuring two independent forming lines on one equipment to produce two different plate types.

Q2: Does the device support customized voltage and plug standards?

Support. The standard voltage is 380V/50Hz/3-phase, but it can be customized according to the power grid standards of the customer's country, such as 220V, 415V, 440V, and other different voltage and frequency combinations.

Q3: How to ensure the production accuracy of the molding machine?

Precision assurance comes from three levels: precision machining and quenching treatment of the rolling mill to ensure accurate forming contours; Real time monitoring and adjustment of production parameters by PLC closed-loop control system; The hydraulic post cutting system, in conjunction with encoder sizing, achieves a cutting tolerance of ± 1mm.

Contact Us：

From industrial plants in Peru, South America to logistics warehouses in Africa, TR4 trapezoidal roof panels are serving an increasing number of construction projects worldwide with their excellent structural performance and economic benefits. A TR4 cold bending machine with reliable performance and stable accuracy is the core equipment for roof material manufacturers to seize market opportunities and enhance competitiveness. If you need equipment solutions and quotations tailored to your specific needs, please feel free to contact us at any time.