PV Module Frames Manufacturer | Custom Aluminum Solar Frames – Aluvoltec

Introduction

If you're sourcing PV module frames for a solar production line, an EPC project, or a private-label solar brand, frame quality is not a minor spec — it decides how well your panels perform for the next 25 years. A poorly extruded or badly toleranced frame can cause sealing failure, microcracks, and warranty claims long after the shipment leaves the factory.
Aluvoltec manufactures aluminum solar panel frames and custom PV module frames from our production facility in Sihanoukville, Cambodia, and supports OEM buyers who also need solar aluminum profiles for other parts of their build. This guide walks through what buyers actually need to know before placing an order: material choice, tolerances, finishing options, testing, and how to evaluate a supplier before you commit to a purchase order.

What Are PV Module Frames and Why Do They Matter?

A PV module frame is the extruded aluminum border that surrounds a solar panel's glass, encapsulant, and cell layers. It does three jobs at once: it holds the laminate rigid, seals the edge against moisture, and gives the module the structural strength to carry wind, snow, and handling loads during transport and installation.
Because the frame sits at every stress point of the module, small defects compound quickly:
  • Uneven wall thickness can crack the laminate under load
  • Poor corner joints let moisture into the lamination edge
  • Inconsistent width or height causes racking and clamp misalignment on site
For OEM/ODM buyers and module assemblers, the frame is one of the few components you can inspect and test before it ever touches a cell — which is why experienced procurement teams spend real time vetting frame suppliers rather than treating this as a commodity purchase.
 

Aluminum PV Module Frames vs. Other Frame Materials

Aluminum remains the standard choice for solar panel frames, though buyers sometimes ask about alternatives. Here's a straightforward comparison:

Frame Material	Weight	Corrosion Resistance	Cost	Typical Use
Aluminum alloy (6063-T5)	Light	Excellent (with anodizing)	Moderate	Standard for residential, commercial, utility-scale modules
Steel	Heavy	Requires coating, prone to rust	Lower raw cost, higher shipping cost	Emerging alternative, limited supply chain maturity
Frameless (glass-glass)	N/A	Not applicable	Higher module cost	Bifacial, premium architectural applications

Aluminum's strength-to-weight ratio is why it dominates the market: it's light enough to keep shipping and installation costs down, yet strong enough to meet standard mechanical load requirements without adding thickness. This is why Aluvoltec builds its aluminum solar frames on this alloy family rather than alternatives.

Our PV Module Frame Manufacturing Process

Aluvoltec produces solar aluminum frames through a controlled, multi-stage process:
1.    Extrusion — aluminum billet is heated and pushed through custom dies to form the long-frame and short-frame profiles
2.    Precision cutting — bars are cut to length with tight tolerance control
3.    CNC drilling and punching — mounting holes, drain holes, and grounding points are added per customer drawing
4.    Corner assembly — long and short frame members are joined with corner connectors for structural rigidity
5.    Surface finishing — anodizing or powder coating is applied for corrosion protection
6.    Inspection and packing — each batch is checked before export packing
This process is the same whether you're ordering standard module frames or a fully custom profile designed around your own module dimensions.

Custom PV Module Frame Specifications & Tolerances

Dimensional accuracy is where frame quality is won or lost. On high-speed automated assembly lines, even a small deviation in wall thickness or frame height can cause misfeeds or sealing gaps.
Aluvoltec controls tolerance through:
  • Precision aluminum extrusion dies built to customer drawings
  • CNC cutting and drilling for hole position accuracy
  • Automated straightening to correct bow and twist after extrusion
  • In-line dimensional checks throughout the production run
Buyers should always request a specification sheet — wall thickness, frame height, width, and hole placement — before confirming an order, and compare it against their own module design before mass production begins.

Aluminum Alloy Grades We Use for Solar Frames

 
Aluvoltec manufactures PV module frames using aluminum alloy 6063-T5, the industry-standard grade for solar applications. This alloy is chosen for a specific reason: it offers a reliable balance of extrudability, corrosion resistance, and mechanical strength after heat treatment (the "T5" temper), which is exactly what a frame exposed to 25+ years of outdoor weathering needs.
Buyers comparing quotes should always confirm the alloy and temper in writing — a lower-grade alloy can look identical on paper (same dimensions) but perform very differently under real load and weather exposure.

Standard vs. Custom PV Module Sizes

Most module manufacturers work with a defined set of frame dimensions to match panel formats already on the market, but custom sizing is common for OEM and specialty projects.
  • Standard sizes fit widely used module formats and are typically faster to quote and produce, since dies and tooling may already exist
  • Custom sizes are engineered around a buyer's specific module dimensions, mounting system, or product design — useful for private-label brands, BIPV projects, or non-standard panel formats
Aluvoltec produces both long frames and short frames as standard components, with custom die development available for buyers who need a profile that doesn't exist yet. New die development does add lead time, so it's worth flagging early in the sourcing conversation.

Anodizing & Surface Finishing for Solar Aluminum Frames

Surface treatment is what actually protects the frame once it's outdoors. Aluvoltec offers anodizing in silver, black, and custom colors, along with powder coating on request.
  • Anodized solar frames resist corrosion, scratching, and UV degradation better than untreated aluminum
  • Black anodized PV frames are commonly specified for residential and commercial systems where aesthetics matter, alongside standard silver finishes for utility-scale projects
  • Coating thickness and finish uniformity are checked as part of quality inspection, since an inconsistent finish is often the first visible sign of a poorly controlled process

Quality Control and Certifications (IEC Standards)

PV module frames are structural components, so buyers should expect suppliers to test against recognized photovoltaic and aluminum industry standards covering mechanical load, corrosion resistance, and dimensional tolerance — the categories referenced in IEC 61215 and IEC 61701 module-level testing.
Aluvoltec's frames go through in-house testing that includes:
  • UV aging resistance
  • Salt spray corrosion testing
  • Mechanical load and impact resistance
  • Dimensional tolerance verification
  • Coating thickness and surface inspection
If a specific certificate is required for your market, ask your supplier directly for the relevant test report before placing an order — this is a reasonable, standard request for any B2B aluminum purchase.

Why Choose a Cambodia-Based PV Module Frame Manufacturer

Sourcing from Cambodia has become a practical option for buyers who want to diversify their supply chain outside mainland China, particularly for markets in North America and the EU where trade policy affects landed cost.
  • Cambodia benefits from preferential trade access in several export markets
  • Production in Sihanoukville SEZ gives Aluvoltec direct port access for container shipping
  • A Cambodia-based facility can reduce single-country supply chain risk for buyers who need continuity
You can read more about our facility and background on our About Aluvoltec page.

OEM & Wholesale PV Module Frame Supply

Aluvoltec supports both OEM/ODM buyers and wholesale distributors:
  • OEM production — frames built to your drawings, dimensions, and branding requirements
  • Wholesale supply — standard profile frames available in bulk for distributors and traders
  • Private-label support — packaging and documentation prepared for your end customer
This flexibility is designed for procurement managers who need a supplier that can scale from a single trial order to a recurring container-load supply agreement.

Production Capacity & Lead Times

Aluvoltec operates 8 extrusion lines and 2 anodizing lines at our Cambodia facility, supporting both standard and custom solar extrusion frames. Exact lead times depend on order volume, whether new tooling is required, and current production scheduling — buyers should request a specific lead time estimate when submitting an RFQ, since this varies by profile and quantity.

Applications: Where Our PV Module Frames Are Used

Solar aluminum frames from Aluvoltec are used across:
  • Residential rooftop solar modules
  • Commercial and industrial (C&I) installations
  • Utility-scale solar farms
  • OEM module assembly lines
  • Private-label solar brands
Buyers in Southeast Asia, including Cambodia's own growing solar market, as well as North America, Europe, the Middle East, and other regions source from Aluvoltec for both standard and project-specific frame requirements.

Sustainability in Aluminum Solar Frame Production

 
Aluminum is one of the most recyclable structural metals available, and this matters increasingly to buyers with their own ESG or sustainability commitments. Aluvoltec's production practices include recycled aluminum input where possible, low-emission extrusion technology, and controlled wastewater and waste-air management at the facility.
For buyers evaluating suppliers against sustainability criteria, it's worth asking directly what percentage of recycled content is used in a given order and what environmental documentation is available.

How to Request a Custom PV Module Frame Quote

To get an accurate quote for custom PV module frames, prepare the following before contacting a supplier:
  • Module dimensions and target frame profile (or an existing drawing)
  • Required alloy/temper if you have a preference
  • Surface finish (anodized silver, black, powder coat, etc.)
  • Order quantity and expected shipment schedule
  • Target certifications or test reports needed for your market
Having this ready shortens the quoting cycle significantly and helps the supplier flag any tooling or lead-time issues early. You can view our current Solar Aluminum Frames range or Contact us directly with your specifications for a quotation.

Frequently Asked Questions About PV Module Frames

What aluminum alloy is used for PV module frames?

Most manufacturers, including Aluvoltec, use aluminum alloy 6063-T5 for solar frames. It offers a strong balance of corrosion resistance, weight, and mechanical strength after heat treatment.

Can PV module frames be customized?

Yes. Frame height, width, wall thickness, hole placement, and surface finish can be customized to match a buyer's module design. New custom profiles require die development, which adds lead time.

What is the difference between anodized and powder-coated solar frames?

Anodizing creates a hard oxide layer on the aluminum surface for corrosion and UV resistance, while powder coating applies a separate protective layer. Both are used in the industry; anodizing is more common for standard solar frames.

What is the minimum order quantity for custom PV module frames?

MOQ depends on the profile and whether new tooling is required. Contact Aluvoltec directly with your specifications for an accurate MOQ and quote.

Do PV module frames need certification?

Frames themselves are typically tested for mechanical load, corrosion resistance, and dimensional accuracy, which feed into module-level IEC 61215 and IEC 61701 certification. Ask your supplier for relevant test reports for your target market.

How long does production and shipping take?

Lead time depends on order volume, customization level, and whether new dies are needed. Request a specific lead time when submitting your RFQ, since this varies order to order.

Conclusion