High Speed CZ Purlin Cold Roll Forming Line with PLC Control

In the context of the rapid development of steel structure buildings and prefabricated buildings, C-shaped steel and Z-shaped steel, as the core components of roof and wall support systems, directly determine the quality and cost of steel structure engineering in terms of production efficiency and forming accuracy. The High Speed CZ Purlin Cold Roll Forming Line with PLC Control, as an advanced cold bending forming equipment that integrates high-speed forming, intelligent control, and flexible changeover, is helping global steel structure manufacturers achieve dual breakthroughs in production capacity and quality with its excellent production efficiency and intelligent operation experience.

What is CZ steel cold bending production line?

The CZ steel cold bending production line is a highly integrated automated cold bending equipment, dedicated to producing C-shaped steel and Z-shaped steel purlins in steel structure buildings. The entire production line is unified and coordinated through a PLC control system, which can achieve the full process automation of continuous unwinding, leveling, punching, roll forming, cutting to length, and receiving of steel coils.

The standard production process is: hydraulic unwinding → leveling and feeding → punching → roll forming → hydraulic cutting → automatic feeding. The operator only needs to set the specifications, length, hole spacing and other parameters of the purlin on the touch screen, and the entire production line can run automatically.

Core Advantages:

1. High speed and efficiency, doubling production capacity
The equipment adopts a high-power reduction motor combined with a variable frequency speed control system, and the production speed can reach 0-20 meters per minute (depending on the number of punching holes). The main motor power is usually 15kW, and with optimized transmission structure, it ensures stable output under long-term high load operation. In the fully automatic continuous production mode, only 1-2 operators are needed to manage the entire production line, which is several times more efficient than traditional production methods.

2. CZ exchange, worry free replacement of models
This is the core competitiveness of CZ molding line. The equipment adopts coaxial design and CZ exchange module, which can switch between C-shaped steel and Z-shaped steel through PLC control or simple 180 degree rotation operation without replacing the forming rollers. The changeover time can be controlled within 1-5 minutes, truly achieving "one machine for two purposes".

In terms of specification adjustment, the equipment supports infinite adjustment function: the width of the C-shaped steel web plate can be adjusted within the range of 80-300mm, and the width of the Z-shaped steel web plate can be adjusted freely within the range of 100-300mm. The waist height of 30-80mm and the small edge of 10-20mm can be achieved through millimeter level precision adjustment. The thickness of the board is compatible with 1.5-3.0mm, and some models can be expanded to 1.0-4.0mm.

3. Intelligent PLC control, easy to operate
The equipment is equipped with an industrial grade PLC control system (optional brands such as Siemens and Delta) and a touch screen human-machine interface to achieve intelligent production management. The operator only needs to input parameters such as purlin length, hole spacing, and quantity, and the system can automatically complete the full process control of punching, forming, and cutting. The control system is also equipped with an encoder for precise positioning, ensuring accurate cutting length and hole position.

4. High precision molding, stable quality
The equipment adopts multiple guarantee measures in precision control: the rolling mill adopts GCr15 bearing steel, which is processed by CNC machining and heat treatment to HRC58-62 before precision grinding, polishing, and chrome plating to ensure accurate and wear-resistant forming contours; The spindle is made of 40Cr steel, which has undergone quenching and precision machining to ensure long-term operation without deformation; The leveling device adopts a top three and bottom four axis structure, effectively eliminating internal stress in the steel coil and ensuring smooth feeding.

5. Knife free cutting, low maintenance cost
The equipment adopts a formed infinite cutting system, and the cutting process does not require blade replacement. It is randomly equipped with 80-200mm blades and an additional 200-300mm blades, and one tool can cover the entire specification range. The blade material is Cr12MoV, which has a long service life after quenching treatment. The cutting edge is flat and free of burrs, minimizing material waste to the greatest extent possible.

Application Areas:

The C-shaped steel and Z-shaped steel purlins produced by the CZ steel cold bending forming line are widely used in various steel structure building scenarios:

• Industrial buildings: Roof and wall purlin systems for steel structure factories, logistics warehouses, and manufacturing workshops

• Commercial buildings: Steel structure support systems for large supermarkets, sports arenas, and exhibition centers

• Agricultural buildings: roof support components for livestock farms and grain warehouses

• Prefabricated buildings: wall studs and roof purlins for light steel villas and modular houses

• Other uses: Cable trays, photovoltaic brackets, large storage shelves

Pattern diagram:

Product Attributes :

Frequently Asked Questions (FAQ):

Q1: How long does it take for CZ exchange on the CZ molding line?

CZ interchange is completed through PLC control or manual rotation of 180 degrees, usually taking only 1-5 minutes to switch between C-shaped steel and Z-shaped steel, without the need to replace the forming rollers.

Q2: Does the device support infinite switching?

support. Within the set range, the dimensions of the web, flange, small edge, etc. can be adjusted in millimeters, and different specifications of purlins can be produced without replacing the forming rollers, as well as non-standard products.

Q3: Does the cutting system require frequent tool changes?

No need. The equipment adopts a formed infinite cutting system, and one tool can cover the entire specification range of 80-300mm. The cutting process does not require blade replacement, greatly reducing maintenance costs and downtime.

Q4: What voltage and power standards does the device support?

The equipment can be customized with voltage configuration according to the power grid standards of the customer's country, supporting different voltages such as 380V, 415V, 440V, etc. The frequency can be selected as 50Hz or 60Hz, and it is a three-phase power supply.

Contact Us：

From the roof purlins of industrial plants to the wall supports of large warehouses, from the wall skeleton of light steel villas to the profile components of photovoltaic brackets, C-shaped steel and Z-shaped steel are serving an increasing number of steel structure construction projects worldwide with their excellent structural performance and economic benefits. A High Speed CZ Purlin Cold Roll Forming Line with PLC Control, which is reliable in performance and easy to change, is the core equipment for steel structure manufacturers to seize the opportunities in the construction industrialization market and enhance their competitiveness. If you need equipment solutions and quotations tailored to your specific needs, please feel free to contact us at any time.