Anyone sourcing ventilation for an industrial building knows that standerd AC units don't cut it when you're pulling fumes out of a hot roof — we've seen too many setups fail because the motors seize within a year or the bearings burn out form constant heat exposure. What we've got here is a brushless DC motor that skips the brushes entirely, so there's no mechanical wear from friction and no arcing that could ignite dust in combustible environments (usually the biggest concern for warehouses and processing plants). Each unit gets a full test run before shipment, and we hold a batch sample for retesting if you want to verify consistency against the COA.

It moves 2500 cubic meters of air per hour at under 45 decibels, which is basically a quiet hum even when the solar panel is driving it at full tilt. The aluminun alloy body and five-blade fan hold up well under constant UV exposure because the powder coating is UV-resistant — not the cheap stuff that flakes after six months. We typically see these installed in poultry barns, metal workshops, and loading docks where you can't run conduit for grid power but still need to cycle air out fast.

The solar panel is 45 watts at 15 volts DC, so it runs fan directly without an inverter or battery in most daylight hours. You can order it in white or black, and the base plate is 570 millimeters square with a 1mm thickness — standard mounting footprint that fits most existing roof openings or curb adapters. One thing we don't advertise but you should know: the brushless motor has a thermal cutoff at 85°C, so if the roof gets scorching hot and the panel overshoots votage momentarily, the fan just shuts down and restarts once it cools — no fried windings.

RoHS certified, one-year warranty, and we keep about 200 units in stock for quick dispatch, but if you need a bigger batch we can run 500 or so in about 20 working days. The MOQ is usually 10 pieces for this model, though our company can do a sample single unit at full cost if you're evaluating it for a pilot project. Each shipment includes a packing list with batch numbers and a basic inspection report — we don't automatically include the full HPLC or performence test data unless you request it, but we can email a PDF from that specific batch within 48 hours.
The MOQ for this model is 50 units for the first order. After that, we can be more flexible on repeat orders.
Standard lead time is 15-20 working days after order confirmation and deposit. For larger orders, we can schedule production to meet your timeline.
Yes, we include the RoHS compliance certificate with each shipment. If you need additional factory test reports or material certifications, just let us know.
We can offer custom colors beyond white and black, but that requires a larger MOQ. The base plate is fixed at 570×570×1mm for this model, so we can't change that without a new mold.
Store it in a dry, indoor area with temperatures between -10°C and 50°C. Keep the solar panel and fan body in their original packaging to protect the coating and blade.
Excellent experience from start to finish. The shipping was incredibly fast and the package arrived well-protected with no damage whatsoever. The build quality of the fan itself is immediately apparent; it feels robust and well-constructed, suitable for an industrial setting. Communication from the supplier was prompt and professional, answering all my pre-purchase questions clearly. While I have not yet installed the unit for full operational testing, the initial inspection leaves me very impressed with the materials and craftsmanship. The entire process, from ordering to delivery, was seamless and efficient. Based on the logistics, the apparent quality of the product, and the excellent service received, I am highly satisfied and would confidently recommend this supplier.
Upon receiving the solar roof ventilation fan, I must highlight the exceptional logistics involved. The delivery was incredibly prompt and well-coordinated, arriving ahead of the estimated schedule without any delays or complications. Everything was packaged securely with robust materials that prevented any damage during transit, which is crucial for industrial-grade items like this. The quality of the product is immediately apparent upon unboxing; it feels sturdy and well-constructed, with durable components that suggest long-term reliability. The solar panels and fan assembly appear to be made from high-grade materials, ensuring they can withstand harsh environmental conditions typical in industrial settings. As for service, the support team was highly responsive and professional, providing clear communication throughout the ordering and shipping process. They addressed my inquiries swiftly and offered helpful guidance, making the entire experience smooth and hassle-free. Overall, the combination of efficient logistics, superior quality, and outstanding service makes this a commendable purchase for anyone in need of reliable industrial ventilation solutions.
Just outstanding service from start to finish! The delivery was incredibly fast and well-handled, arriving ahead of schedule with secure packaging that ensured everything was in perfect condition. The quality of the product is exceptional; it feels robust and well-made, exactly as described. Customer support was responsive and helpful, answering all my queries promptly. Overall, a very smooth and satisfying experience—highly recommended for anyone looking for reliable industrial ventilation solutions.