Your Professional Other Photovoltaic Accessories Supplier
Wuxi Chenglida Machinery Co., Ltd. is a professional manufacturer of photovoltaic mounting systems, seismic support structures, and precision mechanical components in China. We provide standard and custom manufacturing solutions for solar energy and industrial projects. Our products are widely used in rooftop, ground-mounted, and carport solar power systems for residential, commercial, and utility-scale applications.
Strong Manufacturing Capacity
With multiple production lines and advanced stamping equipment, we support efficient mass production and flexible custom orders for different project sizes.
Reliable Delivery Support
Our organized production management and stable supply capability help ensure on-time delivery for engineering projects and long-term cooperation.
Custom Engineering Solutions
We provide OEM/ODM services based on drawings or samples, offering customized photovoltaic mounting systems and precision mechanical components.
Complete Service System
From technical consultation and production tracking to after-sales support, we provide responsive service throughout the entire project process.
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Photovoltaic Triangle ConnectorPhotovoltaic triangle connector is a steel structural adapter, triangular in shape, used in photovoltaic mounting systems to connect three profiles (rails, columns, and braces) in different...view more
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PV Foundation Screw PostThe PV Foundation Screw Post is a type of helical steel pile that replaces concrete foundations. It is directly embedded in the soil through mechanical screwing and has a flange or internal thread...view more
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Photovoltaic Bracket ConnectorPhotovoltaic bracket connectors are hardware nodes that quickly connect columns, beams, purlins, and modules into a stable triangular system. They can replace welding and on-site drilling,...view more
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Solar Panel Mounting L BracketL-type solar connectors are bracket assemblies used to secure and connect solar panels, typically in rooftop or ground-mounted photovoltaic systems. Their main function is to provide stable...view more
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Solar Panel U-boltThe Solar Panel U-bolt is a key component used for fixing and connecting solar panel brackets. It is made of high-strength steel with a hot-dip galvanized or zinc-aluminum-magnesium treated...view more
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Photovoltaic BaseThe Photovoltaic Base is a fundamental component of a solar panel mounting system, used to secure the panel frame to the ground, roof, or other supporting structures. Constructed from Q235B carbon...view more
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Photovoltaic Galvanized BaseThe Photovoltaic Galvanized Base is a crucial component in solar photovoltaic systems used to support and secure solar panels. It is made of high-quality Q235B carbon steel with a hot-dip...view more
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Solar Frame ConnectorChenglida Solar Frame Connectors are precision-engineered components designed to join and secure photovoltaic mounting rails. They enable rail extension, angle connections, and stable alignment,...view more
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Photovoltaic Bracket Color Steel Tile Roof Special FixtureColor Steel Tile Roof Fixtures are purpose-designed for metal roofing photovoltaic applications, providing reliable and efficient mounting solutions across a wide range of color steel roof...view more
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Adjustable Solar Mounting BracketThe Adjustable Solar Mounting Bracket is a high-performance photovoltaic (PV) mounting bracket connection accessory from Chenglida. Manufactured from zinc-aluminum-magnesium...view more
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Solar Panel L BracketThe Solar Panel L Bracket is a commonly used connection and fixing component in rooftop photovoltaic (PV) installation systems. It is primarily used to securely mount solar panels onto corrugated...view more
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Solar PurlinPhotovoltaic purlins are core structural components of photovoltaic mounting systems, primarily used to support and secure solar modules, ensuring the stability and safety of the overall system....view more
Specification
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Main Categories |
PV guide rail / module clamp / roof hook / connector parts |
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Material |
Aluminum alloy / Stainless steel / Galvanized steel |
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Surface Treatment |
Anodized / Hot-dip galvanized / Anti-corrosion coating |
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Installation System |
Roof / Ground / Carport solar mounting systems |
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Compatibility |
Framed solar panels |
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Function |
Fixing, connecting, supporting solar mounting structure |
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Fasteners Type |
Bolts / Screws / Nuts / Clamps |
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Roof Hook Type |
Tile roof hook / Adjustable hook / Stainless hook |

The other photovoltaic accessories produced by our company mainly include the following types:
Photovoltaic Triangle Connector
Photovoltaic triangle connector is a steel structural adapter, triangular in shape, used in photovoltaic mounting systems to connect three profiles (rails, columns, and braces) in different directions, forming a stable triangular load-bearing unit.
Solar Frame Connector
They enable rail extension, angle connections, and stable alignment, ensuring solar arrays maintain structural integrity even under high wind, heavy snow, or uneven terrain conditions.
Solar Purlin
Photovoltaic purlins are core structural components of photovoltaic mounting systems, primarily used to support and secure solar modules, ensuring the stability and safety of the overall system.
Advantages of Other Photovoltaic Accessories
Photovoltaic Triangle Connector
Photovoltaic triangle connectors have many advantages, including:
• Align the three sides of the triangle connector with the modular holes of the guide rail, diagonal brace, and column, respectively;
• Insert the bolts and tighten them manually first;
• Uniform torque ensures a stable triangle is formed in one tightening operation, eliminating the need for welding at heights.
Solar Frame Connector
Solar frame connectors have many advantages, including:
• Extension and docking: When a single rail is not long enough, two rails are connected together with a connector to achieve the required length of the array.
• Enhance structural stability: The connector ensures that the force can be effectively transmitted and dispersed in the whole guide rail system, preventing local force from being too large and causing deformation.
• Achieve angular connections: Special angular connectors are required to change the direction of the guide rail when dealing with complex roofs or terrain.
• Ensure installation accuracy: a good connector can ensure that the guide rail is kept straight after connection, avoiding steps or misalignment, so as to ensure the flat and beautiful installation of components.
Solar Purlin
Solar purlins have many advantages, including:
• High structural strength and stable load-bearing capacity
• Excellent surface corrosion resistance, suitable for long-term outdoor use
• High dimensional accuracy, convenient and efficient installation
• Compatible with various photovoltaic support systems
• Factory direct supply, high cost-effectiveness, and stable delivery time
Photovoltaic Triangle Connector
Photovoltaic triangle connectors have many functions, including:
• Node Connection: Simultaneously locks the longitudinal guide rail, transverse purlin, and diagonal brace in one location, achieving rapid transitions between 60°, 90°, and 120° angles.
• Load Distribution: Wind or snow loads are evenly distributed to the three profiles via the triangular plate, reducing the maximum bending moment at a single point by 30%, and allowing for an increase in span by 0.2–0.3 m.
• Angle Adjustment: The elliptical hole provides ±10 mm margin, and the slope is infinitely adjustable from 5 to 30°, adapting to different roof or ground terrains.
Solar Purlin
Solar purlins have many functions, including:
• Load Transfer Hub: A crucial link in the load transfer path, its strength and reliability directly affect the safety of the entire system.
• Positioning and Fixing: Ensures the photovoltaic support rails are installed in the designed positions and prevents lateral movement and torsion.
• Standardization and Customization: Standard models are available, but on-site measurements and customization are often required based on specific photovoltaic support dimensions, main beam dimensions, and connection methods.
• Enhanced Overall Stability: By firmly connecting each purlin to the main structure, the overall rigidity and stability of the solar support structure are enhanced.

Installation Steps for Photovoltaic Triangle Connectors(Other Photovoltaic Accessories)
Preparing the Solar Cables
Start by preparing the solar cables for installation. Use a wire stripper to remove about 1/4 inch of insulation from the end of each cable. Ensure you strip the insulation carefully to avoid damaging the copper wires inside.
Attaching the Connector Pins
Once the cables are ready, attach the connector pins. Take a connector pin and insert the stripped end of the cable into the pin’s opening. Ensure the wires fit snugly inside the pin. A loose fit can result in an unreliable connection.
Assembling the Connectors
With the pins attached, assemble the connectors. Take the male and female parts of the solar PV connector and insert the crimped pins into their respective housings. Push the pins into the connector until you hear a click.
Testing the Connection
Testing the connection ensures your Solar PV Connector is functioning correctly and safely. This step verifies that the electrical flow between components is uninterrupted and efficient.

Ordering Process
Inquiry: Customer sends drawings, project specs, or basic requirements
Technical Review: Engineering team checks structure, load, and site conditions
Quotation: Offer detailed price, lead time, and packing method
Confirmation: Customer confirms order, design, and commercial terms
Sample (Optional): Produce sample or trial parts if required
Production: Mass production with strict quality control at each stage
Shipping: Arrange container loading and international logistics
Packaging and Shipping
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Packaging |
Wooden pallet + steel strapping + waterproof wrapping |
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Shipping |
Shipping by sea, by air, by express are acceptable. According to your requirements. |
Our Factory
Wuxi Chenglida Machinery Co., Ltd. is located in Huishan District, Wuxi, China, a well-established industrial hub with convenient transportation access and efficient logistics networks, ensuring reliable and timely global delivery.

FAQ
As one of the most professional photovoltaic accessories manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to buy customized photovoltaic accessories from our factory. Welcome to view our website for more information.
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