120*30mm Three-port Outdoor Aluminum Plastic Square Tube

Key Advantages

• 120×30mm dimensions: Wide-profile design with larger coverage per tube, reducing the number of visible joints
• Three-port slot structure: Three symmetrical slots accommodating various installation patterns and configurations
• High-strength aluminum alloy substrate: Structural stability with high deformation resistance
• Corrosion and weather resistance: Coated surface resists UV and salt-spray corrosion; Suitable for indoor and outdoor use
• Refined surface finish: Anodized or fluorocarbon coated for uniform texture
• Multi-slot compatibility: Allows combination of different spacing and layering patterns

Product Features

Application Scenarios

• Large shopping mall ceilings (atriums, walkways, public areas)
• Convention center ceilings (exhibition halls, meeting area grille ceilings)
• Station and exhibition hall ceilings (waiting halls, exhibition spaces)
• High-end office building ceilings (lobbies, office areas, corridors)
• Exterior wall grille decoration (building facade sunshade components, decorative grilles)
• Large-area continuous ceiling installations

Frequently Asked Questions

Q1: What are the main differences between three-port, double-port, and single-port square tubes?
The three-port tube features three slots with a width of 120mm, making it a wide-profile design. The wider tube provides larger coverage per unit with fewer visible joints. The multi-slot structure allows clips to be installed at different slot positions, enabling various grille patterns (such as graduated spacing and double-layer stacking). Suitable for large spaces and applications requiring design versatility.

Q2: How are the square tubes installed?
Install using clip-in suspension: install hanger rods (spacing ≤ 1.2M) and main framing on the ceiling. Select the appropriate slot position based on design requirements, insert clips, and secure to the framing. Square tube spacing depends on design requirements (typically 50-200mm). The multi-slot design allows different clip positions within the same project for layered variations.

Q3: Is the 120mm width suitable for all spaces?
The 120mm wide-profile design is suitable for large spaces with ceiling heights above 4 meters, such as shopping mall atriums, convention centers, and station halls. For lower ceiling heights (below 3 meters), narrower profiles (50mm or 80mm) are recommended to maintain visual proportion.

Q4: Can the product be used outdoors?
Yes. The aluminum alloy and fluorocarbon coating provide UV and corrosion resistance, suitable for exterior wall grilles and sunshade components. Fluorocarbon coating is recommended for outdoor use due to superior weather resistance compared to anodized finishes.

Q5: Does the product surface require additional coating?
No. The product is factory-finished with anodized or fluorocarbon coating and is ready to install.

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. The 120mm wide tube requires higher framing flatness tolerance
• Storage requirements: Store flat on dry, level ground with stack height not exceeding 1 meter; Avoid heavy pressure that may cause deformation of the wide profile
• 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; The 120mm wide tube requires two-person handling to prevent bending deformation
• When installing clips into three-port slots, select the correct slot position per design drawings; Ensure clips are fully seated and fasteners are tightened
• After installation, verify overall grille flatness with a level. Spacing deviation accumulation is more noticeable with 120mm wide tubes
• 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
• For large-area ceiling installations, perform a mock-up test before full installation to verify slot selection and visual effect