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A Comprehensive Guide to PV Brackets: Definition, Components and Classification

Release time:

2026-01-12

A solar PV bracket is a core supporting component specially designed for placing, installing and fixing solar panels in a solar photovoltaic power generation system. It needs to ensure the stable operation of PV modules in different environments and has excellent performances such as wind resistance, snow resistance, corrosion resistance and aging resistance. Common materials include aluminum alloy, carbon steel and stainless steel. As a PV bracket manufacturer, the core material of our PV brackets is aluminum alloy.

Components of PV Brackets

The PV bracket system consists of multiple core load-bearing components and auxiliary accessories, which work together to ensure the stability and functionality of the bracket. The specific components are as follows:

1. Main Load-Bearing Components

Standing Pole: A core load-bearing component that connects the beam slab to the foundation and links other components such as shafts and slide rails.
Support: A reinforcing component used to enhance the stability of standing poles, beams and slide rails.
Beam: A load-bearing component that supports the slide rail and is a key part of the lateral force bearing of the bracket.
Shaft: Mainly used to support the slide rail and adjust the angle of the slide rail, which is one of the core components of the tracking bracket.
Slide Rail: A component that directly supports photovoltaic power generation modules and provides a stable installation foundation for the modules.

2. Transmission and Control Components (For Tracking Brackets Only)

Crankshaft: A mechanical transmission component between the bracket and the power unit, ensuring the precise operation of the tracking mechanism.

Transmission and Control Components: Core components used to track the sun's trajectory and drive the bracket to complete angle adjustment, commonly found in tracking bracket systems.

3. Auxiliary Accessories

Refers to the connection and fixing components used to form a continuous PV support system, which are used to supplement or improve the functions of the bracket. Specifically, they include: linear fixing plates, screw connecting plates, corner fixing plates, variable angle fixing plates, partitions, pressing plates and various fasteners, etc.

Classification of PV Brackets

PV brackets can be mainly classified according to two dimensions: material and installation method. The details are as follows:

1. Classification by Material

According to the different materials of the main load-bearing members of the bracket, it can be divided into three types: aluminum alloy brackets, steel brackets and non-metallic brackets. Among them, non-metallic brackets are rarely used, while aluminum alloy brackets and steel brackets are widely used due to their excellent performance:

Aluminum Alloy Bracket: Light in texture, corrosion-resistant and good in oxidation resistance, which is the core product material of our company;

Steel Bracket: Strong load-bearing performance and high strength, suitable for large-scale ground photovoltaic power stations;

Non-metallic Bracket: Mostly made of composite materials, with limited application scenarios.

2. Classification by Installation Method

It is mainly divided into two categories: fixed PV brackets and tracking PV brackets, with more detailed classifications under each category:

Fixed PV Bracket: A bracket that cannot adjust the inclination angle and direction angle. It has a simple structure, strong stability and low maintenance cost, and is the most widely used type;

Tracking PV Bracket: It can adjust the inclination angle and direction angle by tracking the sun's trajectory to improve the lighting efficiency of PV modules. Specifically, it can be divided into:

Single-axis Tracking Bracket: The bracket rotates around one axis to track the sun;

Dual-axis Tracking Bracket: The bracket rotates around two axes to track the sun. Its lighting efficiency is better than that of the single-axis tracking bracket, but the structure is complex and the cost is higher.

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