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LiYou Steel manufactures precision-engineered galvanized Z purlins that provide exceptional structural performance for modern steel buildings. Our cold-formed Z-section steel offers superior load-bearing capacity and installation efficiency, making it the ideal choice for large-span roofing systems.
✅ Structural Superiority
Continuous span capability (up to 12m+)
Nesting design allows tighter spacing
20% stronger than C purlins in bending
Better load transfer through overlapping
✅ Premium Material Quality
✔ G550 high-strength steel (550MPa yield)
✔ Hot-dip galvanized coating (Z275-Z450)
✔ Precision roll-forming (±0.8mm tolerance)
✔ Custom lengths up to 12 meters
✅ Installation Benefits
Faster assembly with nesting feature
Pre-punched holes for quick fastening
Lighter weight than traditional beams
Compatible with all roofing systems
Parameter | Specification |
---|---|
Material Grade | G550, Q235, Q345 |
Coating | Z275-Z450 galvanized |
Thickness | 1.2-3.0mm |
Flange Width | 50-80mm |
Web Height | 120-300mm |
Standard Length | 6-12m |
Large-Slope Roofing Systems (5°-25° pitch)
Superior water-shedding performance
Enhanced wind uplift resistance
Ideal for standing seam roofs
Industrial Warehouse Roofs
Supports heavy snow loads
Accommodates long spans
Compatible with insulation systems
Solar Panel Mounting Structures
Pre-drilled for solar brackets
UV-resistant coating options
Anti-corrosion protection
Curved Roof Applications
Flexible installation on radii
Maintains structural integrity
Aesthetic clean lines
Precision Roll-Forming (14-stage process)
Computer-Controlled Punching
Hot-Dip Galvanizing (450°C zinc bath)
Quality Verification (coating thickness tests)
Bundled Packaging (weather-resistant)
✔ ISO 9001 & CE Certified manufacturing
✔ Custom hole patterns available
✔ Just-in-time global delivery
✔ Technical drawings provided
✔ Competitive factory-direct pricing
Structure: 100m×60m warehouse
Purlin Specs:
Z250×75×2.0mm
Z350 galvanized coating
1.8m spacing
Performance:
Supported 1.2kN/m² equipment loads
Withstood 180km/h typhoon winds
Zero maintenance in 7 years
Place of Origin: | Product Name: |
Foshan, China (Mainland) | Steel Frame House |
Material: | |
Q345 Q235 H Section Steel, C/Z Section Steel, Square Tube etc. | |
Standard: | Type: |
GB | Steel Structure Frame |
Size: | Color: |
Up to Customer's Requirement | Graywhite, Blue, Red, etc.. |
Roof & Wall Material: | Insulation: |
Sandwich Panel | EPS, Rockwool, Glass wool, PU etc.. |
Door & Windows: | Technology: |
Steel Door, Aluminum Sliding Window, PVC Window | Welded steel, Hot Rolled Steel |
Drawing Design: | Keywords: |
AutoCAD, Tekla Structure, Vertex BD, SketchUp etc. | Big Metal Building Homes |
Components | Specification |
Anchor Bolt | M30 |
High Strength Bolt | M20,10.9S |
Common Bolt | M16 |
Galvanized Bolt | M12 |
Shear Nail | M16 |
Steel Column(Q345B) | HN600X200X10X15 |
Steel Column(Q345B) | HN300X150X6.5X9 |
Roof Column(Q345B) | HN350X175X6X9 |
Floor Main Beam(Q345B) | HN500X200X9X14 |
Floor Second Beam(Q345B) | HN350X175X6X9 |
Stair | ∅16-bar+2.5mm Chequered Plate |
Tie Rod | ∅89*3.0 |
Horizontal Support | ∅16 |
Roof Purlin(Galvanized) | C180*60*20*2.0 |
Wall Purlin(Galvanized) | C180*60*20*2.0 |
Connecting Plate | 6mm~20mm Steel Sheet |
Paint | 2 Times Spray Paint |
Roof Tile- EPS Sandwich panel | 50mm Color Steel Thickness: 0.426 |
FRP Skylight Panel | Fiber Glass Reinforced Polyester |
Outside Wall Panel -- EPS Sandwich panel | 50mm Color Steel Thickness: 0.426 |
Floor Decking | 1.5mm Galvanized Steel Sheet |
Stair Handrail | 口80*40+口40+口30+口20 |
Gutter | 2.0mm Galvanized Gutter |
Down Pipe | ∅110PVC |
Trimming | 1.0mm Galvanized Steel Sheet |
Livestock Shed, Garage, Plant, Warehouse, Workshop, Office Building, Hotel Building, Commercial Building , Residential House, Airplane Hangar, Outdoor Stadium Shed, Labour Camp, School, Exhibition Hall, Logistics Park, Refrigeration House, Resort, Dormitory Building, Shopping Mall
01 Customized Design
Offer professional building planning & drawing, and suitable steel components according to your requirements.
02 Quality Assurance
● Strict quality control
● Safe packing
● Quality inspection before shipment
03 After-sales service
● Installation instruction on site
● Installation technical team backup
● Timely communication by Email & Phone
LiYou Steel manufactures precision-engineered galvanized Z purlins that provide exceptional structural performance for modern steel buildings. Our cold-formed Z-section steel offers superior load-bearing capacity and installation efficiency, making it the ideal choice for large-span roofing systems.
✅ Structural Superiority
Continuous span capability (up to 12m+)
Nesting design allows tighter spacing
20% stronger than C purlins in bending
Better load transfer through overlapping
✅ Premium Material Quality
✔ G550 high-strength steel (550MPa yield)
✔ Hot-dip galvanized coating (Z275-Z450)
✔ Precision roll-forming (±0.8mm tolerance)
✔ Custom lengths up to 12 meters
✅ Installation Benefits
Faster assembly with nesting feature
Pre-punched holes for quick fastening
Lighter weight than traditional beams
Compatible with all roofing systems
Parameter | Specification |
---|---|
Material Grade | G550, Q235, Q345 |
Coating | Z275-Z450 galvanized |
Thickness | 1.2-3.0mm |
Flange Width | 50-80mm |
Web Height | 120-300mm |
Standard Length | 6-12m |
Large-Slope Roofing Systems (5°-25° pitch)
Superior water-shedding performance
Enhanced wind uplift resistance
Ideal for standing seam roofs
Industrial Warehouse Roofs
Supports heavy snow loads
Accommodates long spans
Compatible with insulation systems
Solar Panel Mounting Structures
Pre-drilled for solar brackets
UV-resistant coating options
Anti-corrosion protection
Curved Roof Applications
Flexible installation on radii
Maintains structural integrity
Aesthetic clean lines
Precision Roll-Forming (14-stage process)
Computer-Controlled Punching
Hot-Dip Galvanizing (450°C zinc bath)
Quality Verification (coating thickness tests)
Bundled Packaging (weather-resistant)
✔ ISO 9001 & CE Certified manufacturing
✔ Custom hole patterns available
✔ Just-in-time global delivery
✔ Technical drawings provided
✔ Competitive factory-direct pricing
Structure: 100m×60m warehouse
Purlin Specs:
Z250×75×2.0mm
Z350 galvanized coating
1.8m spacing
Performance:
Supported 1.2kN/m² equipment loads
Withstood 180km/h typhoon winds
Zero maintenance in 7 years
Place of Origin: | Product Name: |
Foshan, China (Mainland) | Steel Frame House |
Material: | |
Q345 Q235 H Section Steel, C/Z Section Steel, Square Tube etc. | |
Standard: | Type: |
GB | Steel Structure Frame |
Size: | Color: |
Up to Customer's Requirement | Graywhite, Blue, Red, etc.. |
Roof & Wall Material: | Insulation: |
Sandwich Panel | EPS, Rockwool, Glass wool, PU etc.. |
Door & Windows: | Technology: |
Steel Door, Aluminum Sliding Window, PVC Window | Welded steel, Hot Rolled Steel |
Drawing Design: | Keywords: |
AutoCAD, Tekla Structure, Vertex BD, SketchUp etc. | Big Metal Building Homes |
Components | Specification |
Anchor Bolt | M30 |
High Strength Bolt | M20,10.9S |
Common Bolt | M16 |
Galvanized Bolt | M12 |
Shear Nail | M16 |
Steel Column(Q345B) | HN600X200X10X15 |
Steel Column(Q345B) | HN300X150X6.5X9 |
Roof Column(Q345B) | HN350X175X6X9 |
Floor Main Beam(Q345B) | HN500X200X9X14 |
Floor Second Beam(Q345B) | HN350X175X6X9 |
Stair | ∅16-bar+2.5mm Chequered Plate |
Tie Rod | ∅89*3.0 |
Horizontal Support | ∅16 |
Roof Purlin(Galvanized) | C180*60*20*2.0 |
Wall Purlin(Galvanized) | C180*60*20*2.0 |
Connecting Plate | 6mm~20mm Steel Sheet |
Paint | 2 Times Spray Paint |
Roof Tile- EPS Sandwich panel | 50mm Color Steel Thickness: 0.426 |
FRP Skylight Panel | Fiber Glass Reinforced Polyester |
Outside Wall Panel -- EPS Sandwich panel | 50mm Color Steel Thickness: 0.426 |
Floor Decking | 1.5mm Galvanized Steel Sheet |
Stair Handrail | 口80*40+口40+口30+口20 |
Gutter | 2.0mm Galvanized Gutter |
Down Pipe | ∅110PVC |
Trimming | 1.0mm Galvanized Steel Sheet |
Livestock Shed, Garage, Plant, Warehouse, Workshop, Office Building, Hotel Building, Commercial Building , Residential House, Airplane Hangar, Outdoor Stadium Shed, Labour Camp, School, Exhibition Hall, Logistics Park, Refrigeration House, Resort, Dormitory Building, Shopping Mall
01 Customized Design
Offer professional building planning & drawing, and suitable steel components according to your requirements.
02 Quality Assurance
● Strict quality control
● Safe packing
● Quality inspection before shipment
03 After-sales service
● Installation instruction on site
● Installation technical team backup
● Timely communication by Email & Phone