Structural Hollow Section

Structural Hollow Section serves as one of the primary load-bearing members in photovoltaic support systems. Available in square and rectangular profiles, it replaces conventional solid steel components while maintaining excellent structural strength and reducing overall system weight.

Its enclosed tubular design distributes loads evenly throughout the section, significantly improving resistance to bending, torsion and compression under demanding outdoor conditions.

Premium Steel with Precision Manufacturing

Our hollow sections are manufactured from high-quality carbon steel using precision roll forming, automatic welding, fixed-length cutting and strict dimensional inspection. Uniform wall thickness and accurate tolerances ensure smooth assembly with solar mounting rails, connectors and support structures.

Built for Long-Term Outdoor Service

To maximize service life in harsh environments, the products can be supplied with Hot-Dip Galvanized or ZAM surface protection. These coatings effectively resist corrosion, humidity, salt spray and UV exposure, making them suitable for long-term outdoor photovoltaic applications.

Manufactured by an Experienced PV Mounting Supplier

Unlike general steel profile suppliers, Energet Solar focuses exclusively on photovoltaic mounting systems. Since 2015, we have supplied structural components for more than 1,000 PV projects worldwide. Our manufacturing facilities cover over 100,000 m², supported by 40+ production lines, allowing stable quality and fast delivery for both standard and customized orders.

Product Applications

Suitable for Various Photovoltaic Projects

Structural Hollow Section is widely used wherever lightweight structures and high mechanical strength are required.

Ground-Mounted Solar Power Stations

Used as support columns, beams and structural connections for utility-scale PV plants, providing excellent resistance against wind and snow loads.

Commercial & Industrial Rooftop Systems

Its lightweight design reduces roof loading while maintaining sufficient structural strength for long-term operation.

Solar Carports

Provides stable support for parking structures while maintaining an attractive architectural appearance.

Agrivoltaic & Fishery Solar Projects

Suitable for agricultural photovoltaic structures requiring large spans, excellent rigidity and long service life.

Outdoor Steel Structures

Also applied in equipment platforms, guardrails, walkways and various outdoor steel engineering projects.

Product Working Principle

Closed Hollow Structure Maximizes Structural Efficiency

The Structural Hollow Section achieves excellent mechanical performance through its enclosed tubular geometry.

Uniform Stress Distribution

The symmetrical hollow profile evenly distributes vertical loads, wind pressure and torsional forces throughout the structure, reducing localized stress concentration.

Higher Strength with Less Material

Compared with traditional solid steel members, the hollow structure provides excellent bending and torsional rigidity while significantly reducing self-weight. This lowers foundation loads and improves the overall efficiency of solar mounting systems.

Improved Durability

The enclosed section minimizes moisture accumulation and internal corrosion. Combined with galvanized or ZAM surface treatment, the product maintains long-term structural stability even in coastal, humid and high-UV environments.

Why Choose Our Structural Hollow Section

More Than a Steel Supplier

Energet Solar is a dedicated manufacturer of photovoltaic mounting systems rather than a general steel distributor. Every Structural Hollow Section is developed around the actual structural requirements of solar projects.

Large Manufacturing Capacity

Operating 4 manufacturing facilities with an annual production capacity of 500,000 tons, we maintain stable production schedules even for large utility-scale projects.

Strict Quality Control

Production follows ISO 9001 quality management procedures, supported by comprehensive dimensional inspection, coating inspection and mechanical testing before shipment.

International Certifications

Our management systems are certified to ISO 9001, ISO 14001 and ISO 45001. Manufacturing capability has also been independently verified by SGS, while selected solar mounting systems comply with CE and EN 1090 requirements for European projects.

Industry Recognition

Energet Solar was ranked among the Top 5 PV Mounting Manufacturers in China (2026) based on project performance, shipment volume, installed capacity and industry influence, reflecting our strong manufacturing capability and market reputation.

Customization & Manufacturing

Flexible Production for Different Project Requirements

Every photovoltaic project has different structural requirements. We provide customized Structural Hollow Sections according to project loads, installation spans, environmental conditions and engineering drawings.

Engineering Evaluation

Our engineering team reviews project requirements before recommending the most suitable section dimensions, wall thickness and surface treatment.

Precision Production

Manufacturing includes roll forming, automatic welding, straightening, cutting and surface finishing to ensure excellent consistency.

Surface Protection

Hot-Dip Galvanizing and ZAM coating are available according to different environmental requirements and service life expectations.

Comprehensive Inspection

Every production batch undergoes dimensional measurement, straightness inspection, wall thickness verification and coating quality inspection before shipment.

OEM & Project Support

We support OEM manufacturing, customized lengths, non-standard dimensions, rapid mold development and bulk production for EPC contractors, solar mounting manufacturers and international distributors.

FAQ

What is a Structural Hollow Section used for?

It is mainly used as a load-bearing component in photovoltaic mounting systems, steel structures, solar carports, rooftop solar installations, and ground-mounted PV power plants. Its hollow design provides high structural strength while reducing the overall weight of the framework.

What types of Structural Hollow Sections do you supply?

We manufacture both Square Hollow Sections (SHS) and Rectangular Hollow Sections (RHS) in various sizes, wall thicknesses, and lengths. Customized specifications are available to meet different project requirements.

What materials are available?

Our Structural Hollow Sections are commonly produced from Q235B and Q355B carbon steel. Other material grades can also be supplied according to engineering specifications or customer requirements.

Which surface treatments can I choose?

We offer Hot-Dip Galvanizing, ZAM (Zinc-Aluminum-Magnesium) coating, and other customized surface treatments to provide excellent corrosion resistance for different installation environments.

Can you manufacture customized Structural Hollow Sections?

Yes. We provide OEM and custom manufacturing services, including customized dimensions, wall thickness, length, hole processing, and surface finishes. Production can be carried out according to your drawings or project specifications.