Import Fast Assembly Black Flat Plate Solar Collector — Buy in wholesale FOB from Supplier in China

The Millionsun Group Fast Assembly Black Flat Plate Solar Collector is a thermally efficient solar water heating unit designed for residential and light commercial applications. It features a black chrome absorber coating applied via industrial sputtering, with an optical selectivity ratio of 0.93 absorptance and 0.07 emittance, meeting EN 12975-2 standards. The collector has a standard glass cover thickness of 3.2 mm low-iron tempered glass, with a 50 mm mineral wool insulation layer behind the absorber plate. Dimensions are typically 2000 mm x 1000 mm x 75 mm, with a gross area of 2.0 m² and net absorber area of 1.85 m², as confirmed by the supplier's production records.

The absorber plate is constructed from copper with a 0.2 mm thick copper finning, joined to the riser tubes using ultrasonic welding, a method that ensures low thermal resistance and high durability under thermal cycling. The frame is extruded aluminum with a powder-coated finish, rated for corrosion resistance in coastal environments. The collector is compatible with both open-loop and closed-loop systems, and can be arrayed in series or parallel for larger installations. The black chrome coating, developed in-house, is a proprietary formulation that exceeds standard black nickel coatings in long-term stability under UV exposure and humidity.

These collectors are primarily purchased by European distributors, Australian solar installers, and Middle Eastern commercial system integrators who require modular, high-efficiency thermal units for retrofitting existing water heating infrastructure. They are shipped in cartons of four units, each weighing 38 kg, with protective foam corner guards and steel strapping. The supplier confirms a standard lead time of 25 to 35 days after deposit, with FOB Guangzhou or CIF Rotterdam available. Minimum order quantity is not specified in source data; buyers should confirm directly.

Millionsun Group operates a manufacturing facility in Dongguan, Guangdong Province, with 50,000 square meters of production space and monthly output of 20,000 square meters of flat plate collectors. The company maintains two ultrasonic welding lines and one laser welding line, along with a dedicated black chrome coating production line capable of 1 million square meters annually. Their quality control process includes 100% final inspection for solar water systems, with documented delivery accuracy. The supplier does not claim certifications beyond internal testing or reference to the Solar Keymark, which is not confirmed as held by this entity.

Millionsun Group does not disclose headcount, revenue, export history, or client names. The supplier's trust tier is listed as 'harbor', indicating basic verification of business registration and address. Response rate and average response time are not tracked in the source data, suggesting limited customer service automation. The company has been producing flat plate collectors since 2002 and focuses exclusively on thermal solar products, with no evidence of involvement in photovoltaic modules or other energy equipment.