The VMA-3D-No is a direct-drive axial fan designed for rooftop mounting, suitable for exhausting hot air or fumes and supplying fresh air from outside. It features a modern rainproof dome and weatherproof motor housing for reliable outdoor operation.
COMMON APPLICATIONS
This fan is widely applied in rooftop ventilation systems for factories, warehouses, malls, high-rise buildings, commercial kitchens, and utility stations. It’s suitable for hot air, odor, or fresh air exchange systems utilizing natural or forced convection.
SIZE
Standard impeller diameters range from Ø400mm to Ø1250mm. Overall dimensions vary by airflow and motor size, and mounting flanges or base plates are available for installation on metal roofs, concrete slabs, or mechanical floors.
DOCUMENTATION
The VMA-3D-No is the optimal solution for rooftop ventilation systems requiring high airflow, moderate noise, and reliable all-weather operation. The direct-drive motor is fixed to the impeller shaft, minimizing power loss and simplifying maintenance. The housing and rain cover are made from corrosion-resistant powder-coated steel or stainless steel, offering strong protection against rain, UV, and dust. The curved or conical roof hood ensures efficient water drainage. Dynamically balanced axial blades, made of aluminum or coated steel, enable smooth, consistent airflow. The fan mounts easily to the roof via flange or bolt-down base. Optional features include VFD for speed control, temperature–humidity sensors, air dampers, or sound insulation for the motor housing. Suitable for new constructions, renovations, or replacing old roof fans—especially in factories, restaurants, and high-traffic buildings.
Technical Specifications:
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The VMA-3D-No is manufactured at VIMAX GLOBAL’s ISO 9001:2015-certified factory. It is built from high-grade industrial materials, CNC-machined, and assembled with motor–impeller–roof hood integration. Each unit undergoes strict testing for airflow, pressure, noise, vibration, and waterproofing before shipment.
VIMAX offers customization options including dome, cone, or square roof hoods, sensor integration, VFDs, sound insulation, and airflow dampers. Technical documentation includes drawings, CO–CQ, QR-code tracking, and detailed installation manuals. The fan is engineered for both new and retrofit projects, allowing for direct replacement of older rooftop fans without modifying the roof structure.
All products undergo rigorous quality control testing to guarantee high performance, quiet operation, and minimal maintenance. VIMAX also offers strong customer support and expert technical consultation to meet the diverse needs of clients both domestically and internationally.
For more information about VIMAX or to request customized product designs, please contact us.
Shipping policies vary depending on the manufacturer, as we work with multiple partners. Freight is typically included to a standard commercial or industrial address. However, deliveries to non-standard locations may incur additional costs.
A typical delivery location can accommodate a semi-trailer truck with a standard 53’ trailer and has the means to offload the equipment. Equipment is generally delivered to the tailgate of the truck. The carrier does not unload the equipment unless prior arrangements have been made. It is the receiver’s responsibility to remove the equipment from the truck. If alternative delivery arrangements are required, they can be coordinated at the time of order placement.
Terms of Sale
Payment Methods: Payment by Telegraphic Transfer (T/T) or Letter of Credit (L/C).
Price Policy: All prices are subject to change depending on market conditions and will be notified accordingly.
Sales Taxes: Unless otherwise specified, prices exclude taxes and fees. Any applicable local, state, or federal taxes will be added to the invoice and are the buyer’s responsibility.
Claims: The seller’s responsibility ends once the goods are handed over to the carrier in good condition. The buyer is responsible for filing any claims related to damage, shortages, or losses during transit with the carrier. We will assist where possible. Claims for factory shortages must be submitted within 60 days of receipt.
Acceptance or Approval: Equipment purchased subject to third-party approval (e.g., by an architect or engineer) is not guaranteed to meet specifications written for other manufacturers.
Limitation of Liability: The seller’s liability is limited to repair, replacement, or refund at their discretion. No responsibility is accepted for misuse, improper storage, or operation. No liability is assumed for incidental or consequential damages.
Dispute Resolution: All disputes will be resolved through binding arbitration under the rules of the American Arbitration Association (AAA) in Skokie, Illinois, governed by Illinois state law.
Delays: The seller is not liable for delays caused by force majeure events such as natural disasters, strikes, accidents, material shortages, or circumstances beyond control.
Credit: If the buyer’s credit is deemed insufficient, the seller reserves the right to delay shipment or cancel the order.
Penalty Clauses: Any penalty clauses are only valid if expressly approved in writing by a company officer.
The buyer shall reimburse incurred expenses if the order is canceled without fault on the seller’s part.
A 50% fee applies to non-stock replacement parts.
A 30% fee (minimum $125) applies if the order is in production or completed.
A $150 fee applies if the order has been entered but production has not started.
No fee applies if the order has not been entered into the system.
VIMAX Industrial Fans are manufactured by a leading provider of industrial ventilation solutions.
VIMAX is committed to innovation – quality – performance, specializing in the design and manufacturing of efficient, durable, and flexible airflow systems across a wide range of industries.
Every product is built to strict industrial standards, using advanced manufacturing technology and premium materials such as carbon steel, stainless steel, and aluminum for long-lasting reliability.
All products undergo rigorous quality control to ensure efficient operation, low noise levels, and minimal maintenance requirements.
VIMAX offers comprehensive customer service and technical support to meet the diverse needs of clients both domestically and internationally.
All claims related to visible or concealed damage must be reported immediately to the carrier with photo documentation. Safe delivery is the carrier’s responsibility, and the buyer is responsible for filing any necessary claims.
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