Structural Roofing GB Ridge China Prefab Customized Steel Structure Frame Prefabricated Building Material Manufacture

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Product Description

Basic Specifications

Model NO.
2830
Standard
GB
Surface Treatment
Customized
Type
Cold Forming Sectional Steel
Forming
Cold Drawn Steel
Connection Form
Rivet Connection
Member
Steel Column
Carbon Structural Steel
Q235
Wall Structure
Wall Support
HS Code
7308900000

Packaging & Logistics

Package Size
100.00cm * 100.00cm * 100.00cm
Gross Weight
100.000kg
Transport Package
Seaworthy Packing Standard
Container Max Length
5.8m (20GP) / 11.8m (40GP/HP)

Product Overview

C Purlins are manufactured from galvanized steel strips using the cold-bending method. Available with galvanized or bared surface treatments, they offer significant advantages over traditional structural steel, including lightweight construction, excellent cross-section performance, and superior strength.

Z Purlins are produced from hot-rolled steel sheets through a precise cold-roll forming process. Primarily used as steel building purlins, the Z-section design can reduce material wastage by up to 30%. They feature thin walls, high strength, and are particularly suitable for large-slope roofing systems.

Steel Purlin View 1
Steel Purlin View 2

We provide a comprehensive range of structural C and Z purlins and girts for industrial buildings, garages, verandahs, and carports. Manufactured from high-tensile galvanized steel, this integrated system allows for flexible design options while ensuring increased strength and a long serviceable life.

Purlin Detail 1
Purlin Detail 2
Purlin Detail 3

Technical Specifications

Z Purlin Sectional Size Range

Model NO. h×b1×b2×a (mm) Thickness (mm) Hole Distance (mm) Max Length
Z100100×55×50×202.0-3.0405.8m (20GP) / 11.8m (40GP/HQ)
Z120120×55×50×202.0-3.0Adjustable
Z140140×55×50×202.0-3.0Adjustable
Z160160×67×61×202.0-3.0Adjustable
Z200200×67×61×202.0-3.0Adjustable

C Purlin Sectional Size Range

Model NO. h×b1×b2×a (mm) Thickness (mm) Hole Distance (mm) Max Length
C8080×40×40×152.0-3.0No holes5.8m (20GP) / 11.8m (40GP/HQ)
C100100×50×50×202.0-3.040
C120120×50×50×202.0-3.0Adjustable
C160160×60×60×202.0-3.0Adjustable
C200200×60×60×202.0-3.0Adjustable
C220220×70×60×202.0-3.0Adjust

Professional Services

Established in 1998, we specialize in the design, manufacture, and supply of pre-engineered steel buildings. Our focus is on meeting customer needs for durable, affordable, and versatile steel structures. Our operations include a high-capacity workshop, an experienced drawing office, and an efficient installation team.

We have successfully completed projects across various regions including Europe, Australia, Africa, and Southeast Asia. Our expertise covers pre-engineered steel buildings for factories, warehouses, workshops, supermarkets, and multi-storey structures. Additionally, we provide comprehensive procurement services for sandwich panels, various C/Z purlins, steel deck sheets, and corrugated steel coils.

Certification 1
Certification 2

Frequently Asked Questions

What are the main advantages of C purlins?
C purlins offer a lightweight profile with excellent cross-section performance and high strength, making them ideal for modern steel framing.
How do Z purlins differ from C purlins in application?
Z purlins are specifically designed for large slope roofs. They can be overlapped for continuous spans and can save up to 30% in material compared to traditional box iron.
What materials are used for production?
We use high-quality galvanized steel and carbon structural steel (such as Q235) to ensure durability and a long serviceable life.
Can the hole distance and length be customized?
Yes, hole distances are adjustable for most models, and lengths can be customized up to 11.8 meters to fit standard shipping containers.
What types of buildings are these purlins suitable for?
They are ideal for industrial buildings, warehouses, garages, verandahs, carports, and any structure requiring reliable steel framing.

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