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Understanding the LIMING Purlin Machine: A Comprehensive Guide

Are you an integrator or an owner? Here is LIMING MACHINERY --- the first manufacturer in China who specialises in the complete set of forming equipment for cold rolling (roll pressing and cold bending) of sheet metal. Here is the latest and most authoritative news about purlin machine in China, and you can buy the satisfactory automated production of purlin machine here again.


February 26, 2025

In steel structure, purlin once usually refers to the roof frame framing member that runs parallel to the eaves of the building and supports the roof or sheeting.

A purlin forming machine is a specialised piece of equipment used to manufacture steel purlins in various profiles. Through a process known as roll forming, raw metal is passed through a series of roller processes to form a continuous profile. These machines are capable of producing purlins with high speed and high precision. Liming offers multi-functional machines capable of producing Z, C, M and U-shaped purlins as well as other purlin roll forming machines. These machines are available in various sizes with highly accurate punching options to ensure accurate production. As a result, they are able to meet the diverse needs of modern structural steel projects.


manufacturer of purlin machine


Advantages of purlin machine

Improve production efficiency: automated production and quick change function greatly improve production efficiency, reduce production cost and enhance the competitiveness of enterprises.

Optimise product quality: precise processing and stable production process guarantee the consistency and stability of product quality, which meets the customer's demand for high quality products

Reducing labour costs: Reducing the influence of manual operation and human factors reduces labour costs and human errors in production, and improves production efficiency and quality.

Automated production: through advanced control systems and mechanical devices, the fully automated production process from steel coil to finished components is realised, which greatly reduces manual operations and improves production efficiency and stability

Infinitely switching: Using advanced switching technology, it realises the infinitely switching of C-type and Z-type components without manual adjustment, which greatly saves the time of switching and improves the flexibility of production.

Quick changeover: Combined with the intelligent control system, it realises the function of quick changeover, which can quickly adjust the production parameters and process according to different demands, and adapt to the diversified market demands.

Precise processing: Through precise processing technology and high-precision control system, we ensure the accuracy and consistency of component dimensions, and improve product quality and reliability.

Customisable: Our roll forming machines can be customised for a wide range of panels and widths.

Pattern: The pattern can be customised to punch bottom holes, flange holes, plum blossom holes and many other hole patterns

Reduce material waste: guillotine head shear, cut the head and tail of material, automatically reduce the last section of material; hydraulic front shear, no waste, reduce material waste; back shear, cut out beautiful finished products.

Continuous production: purlin machine can produce any length of sheet continuously without wasting time, ensuring smooth and on-time production.


Advantages of purlin machine

In the steel industry, it is common practice to assign representative names to structural shapes to simplify descriptions in drawings and documents. For example, channel sections with or without flange stiffeners are often referred to as C sections. Meanwhile, channel sections without flange stiffeners are often referred to as U sections.


Comparison of Purlin Machine Advantages: Automatic VS Manual

We would like to compare two types of purlin machine for C type, Z type and U type: type 1 (automatic type change purlin machine) and type 2 (manual type change purlin machine).

Both types of purlin machine can operate multiple sizes of purlins, C type: C100-C300, Z type: 100-300, U type: 100-300;


Automatic type purlin machine: combined with intelligent control system, it realizes the function of quick type change, which can quickly adjust the production parameters and process according to different demands, adapt to the diversified market demand and save the labour cost.

Service punching is equipped with high-precision transmission mechanism, which can effectively guarantee the punching accuracy

The bottom and waist height of C-beam can be infinitely adjusted, and the required specification size can be output through the control panel;

universal shear device.


Automatic purlin machine

Manual type purlin machine: workers manually operate to replace the bushing when changing the type, which is easy and convenient to operate. Produces a generous and beautiful plate, not open mouth, relative to the automatic purlin machine is more economical, more suitable for customers with a large amount of fixed specification plate.


Manual purlin machine



Manual changeove

Automatic changeover

Whether the bushing needs to be replaced manually

need

No need, plc control changeover

Knife Box

Mountable, can be fitted with follow-on scissors

Mountable, can be fitted with follow-on scissors

Universal Scissors

Can be installed, can be equipped with the following shear

Can be installed, can be equipped with the following shear

Punching

Various types of holes can be punched, such as flange holes and plumb holes.

Various types of holes can be punched, such as flange holes and plumb holes

Punching

Punching

Punching


Auto size-changing C Z purlin roll forming machine

Adopting advanced automation technology, it realises automatic production and seamless switching of C and Z section steel components. In addition, the machine can roll purlins of different sizes by adjusting the web width/waist height of purlins.

Parameters of plates: Plate thickness range 1.5-3.0mm. C web width C80-300, waist height 40-100mm. Z web width 120-300, waist height 50-100mm.

 

Its main technical features include: 

1, automatic production: through the advanced control system and mechanical devices, to achieve a fully automated production process from the steel coil to the finished components, greatly reducing the manual operation, improve the production efficiency and stability. 

2, infinitely type change: the use of advanced type change technology, to achieve the C-type and Z-type components of the infinite switching without the need to manually adjust the time to save the change of the type and improve the flexibility of production. 

3, rapid type change: the use of advanced type change technology, to achieve C-type and Z-type components of the infinite switching without the need for manual adjustment, greatly saving time to change the type and improve the production flexibility. Rapid type change: Combined with the intelligent control system, it realises the function of rapid type change, which can quickly adjust the production parameters and process according to different demands, and adapt to the diversified market demands.4 Precise machining: Through the precise machining process and high-precision control system, it ensures the accuracy and consistency of the size of the components, and improves the quality and reliability of the products.


Auto size-changing C Z purlin roll forming machine

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