40*80mm Double-port Outdoor Aluminum Plastic Square Tube

Key Advantages

• 40×80mm dimensions: Rectangular cross-section with a square, symmetrical profile
• Double-port slot structure: Symmetrical slots on both sides for high installation clip compatibility
• Lightweight yet high-strength aluminum alloy: Density approximately 2.7G/cm³, offering higher strength than wood or plastic square tubes
• Compression and impact resistance: Metal substrate resists impact and compression deformation
• Weather and rust resistance: Coated surface resists UV and salt-spray corrosion; No aging during outdoor use
• Long-term stability: No aging, cracking, or deformation
• Clean alignment: Double-port structure allows natural alignment between adjacent square tubes with minimal gaps

Product Features

Application Scenarios

• Large-scale commercial ceilings (airports, stations, exhibition halls, stadiums, and other public spaces)
• Corridor grilles (office buildings, hospitals, school corridor ceilings)
• Commercial space curtain walls (shopping mall exterior decorative grilles, sunshade components)
• Hotel lobby decorative features (lobby ceilings, accent wall grilles)
• Office space ceilings (open-plan offices, meeting areas)
• Modern minimalist interior styles

Frequently Asked Questions

Q1: What are the main differences between double-port and single-port square tubes?
Double-port square tubes have symmetrical slots on both sides of the rectangular cross-section, allowing clips to be installed from either side for higher compatibility. Single-port tubes have a slot only on one side. The double-port structure provides easier alignment between adjacent tubes with more precise gap control. Double-port tubes are suitable for large spaces and applications requiring higher installation precision.

Q2: How are the square tubes installed?
Install using clip-in suspension: install hanger rods (spacing ≤ 1.2M) and main framing on the ceiling. Insert dedicated clips into the double-port slots, then secure clips to the framing. Square tube spacing depends on design requirements (typically 50-200mm). The double-port structure allows clip insertion from either side, providing installation flexibility.

Q3: Can the product be used outdoors?
Yes. The aluminum alloy and fluorocarbon coating provide UV and corrosion resistance, suitable for outdoor curtain wall grilles and sunshade components. Fluorocarbon coating is recommended for outdoor use due to superior weather resistance compared to anodized finishes.

Q4: What applications are suitable for the 40×80mm size?
The 40×80mm rectangular cross-section provides a horizontal rectangular visual appearance. Suitable for large spaces with ceiling heights above 3.5M. The longer dimension (80mm) is typically oriented perpendicular to the viewing direction to create a linear effect. Specific orientation follows design drawings.

Q5: Does the product surface require additional coating?
No. The product is factory-finished with anodized or fluorocarbon coating and is ready to install. For color changes, use metal-specific paints.

Q6: How are the square tubes cleaned and maintained?
For indoor use, regular dusting with a feather duster or dry cloth is sufficient. For outdoor use, rinse with water. For stubborn stains, use a neutral cleaner with a soft cloth. Avoid steel wool pads or acid/alkaline cleaners.

Precautions

• Verify that framing is level and hanger rods are vertical before installation; Adjacent framing height difference not exceeding 2mm per 2 meters
• Storage requirements: Store flat on dry, level ground with stack height not exceeding 1 meter; Avoid heavy pressure that may cause deformation
• Use aluminum-specific saw blades (tooth spacing ≤ 3mm, negative rake angle) when cutting; Wear safety goggles, hearing protection, and gloves. Remove burrs with a file after cutting
• Handle carefully during transport and installation to avoid surface scratches or end deformation from impacts
• When installing clips into double-port slots, ensure clips are fully seated and fasteners are tightened to prevent loosening
• After installation, verify overall grille flatness with a level
• For outdoor installation, use stainless steel hanger rods, framing, and connectors to prevent galvanic corrosion
• Inspect color consistency across multiple batches before large-scale installation
• Avoid cleaning coated surfaces with strong acids, strong alkalis, or organic solvents
• For long continuous runs exceeding 6 meters, install expansion gaps (5-10mm clearance) to accommodate thermal expansion and contraction