The purlin system connects the main structure and the roof ( wall) system, is an important part of the whole building system.

There are two types of Z-type and C-type cross-section.

Raw materials are hot-dip galvanized( Z275g / ㎡) , Q345 high-strength strip, high standard hot dip galvanized treatment, excellent anti-corrosion performance, computer numerical control drilling, high precision, with optimized cross-section design and continuous lap-joint design, to meet the long-span design requirements, safe and lightweight, easy installation.

Advanced pre-punching technology:
The use of advanced pre-punching technology, aperture and hole drilling precisely in the factory through the CNC production line, no need to drill on the site, not only protect the purlin’s galvanized layer, to avoid rusting, extend service life. But also to make the purlin can be better connected with the plate, angle brace and rod support, easy to install, high accuracy.

Model Cross Dimensions(mm)
H B1 B2 A T
C80 80 40 40 15 2.0-3.0
C100 100 50 50 20 2.0-3.0
C120 120 50 50 20 2.0-3.0
C140 140 50 50 20 2.0-3.0
C160 160 60 60 20 2.0-3.0
C180 180 60 60 20 2.0-3.0
C200 200 60 60 20 2.0-3.0
C220 220 70 70 20 2.0-3.0
C250 250 70 70 20 2.0-3.0
C280 280 80 80 20 2.0-3.0
C300 300 80 80 20 2.0-3.0
Model Cross Dimensions(mm)
H B C A T
Z140 140 55 50 20 2.0-3.0
Z150 150 67 61 20 2.0-3.0
Z160 160 67 61 20 2.0-3.0
Z180 180 67 61 20 2.0-3.0
Z200 200 67 61 20 2.0-3.0
Z250 250 78 72 20 2.0-3.0
Z280 280 78 72 20 2.0-3.0
Z300 300 78 72 20 2.0-3.0