High Efficiency Mixed Flow Ventilation Fan

Product Introduction

The high efficiency mixed flow ventilation fan is an advanced ventilation solution designed to combine the high airflow of axial fans with the superior pressure performance of centrifugal fans. Engineered with twisted impeller blades that feature meridional acceleration, and a cylindrical casing integrated with a noise-reducing inlet, this fan offers excellent aerodynamic efficiency, stable airflow  and compact structure. All units are dynamically balanced and tested under overspeed conditions to ensure reliability and long-term operation.

This mixed flow ventilation fan is suitable for both general ventilation and emergency smoke extraction. Fire-resistant models can operate continuously for up to 60 minutes at 300°C, making them ideal for use in critical fire safety systems. With proven performance in national landmark projects such as Beijing Zhongnanhai Auditorium and the Oriental Pearl Tower in Shanghai, the fan is trusted across a wide range of industries and infrastructure projects.

Product Details

Product Features

Energy-Saving Operation

Equipped with high-efficiency motors and optimized impeller aerodynamics, these fans achieve static efficiency of 75%–85%—10%–20% higher than traditional axial or centrifugal fans. In continuous industrial operations, this translates to significant annual energy savings.

Flexible Installation Modes

They support multiple installation methods, including duct-mounted, wall-mounted, and ceiling-mounted. The inlet and outlet can be directly connected to rectangular or circular ducts without complex transition components, reducing installation time and duct resistance (a common energy loss point in traditional systems).

• Steel mills/forges: Withstanding high temperatures and metal dust.

• Chemical plants: Resisting corrosive gases (when using stainless steel casings).

• Food processing facilities: Meeting hygiene standards (easy to clean, no dead corners for dust accumulation).

Low Noise Operation

The optimized blade shape and built-in sound insulation pads (in the casing) lower noise levels to 60–85 dB(A)—far quieter than traditional industrial fans. This is critical for workshops requiring compliance with occupational health standards (e.g., electronics assembly plants, textile mills) or located near residential areas.

Variable Speed Regulation

Most high-efficiency models are compatible with variable frequency drives. By adjusting the motor speed according to real-time airflow demands (e.g., reducing speed during off-peak production), they further save energy and extend the fan’s lifespan.

Simplified Maintenance

The modular design (e.g., detachable impellers, easy-access motor covers) allows for quick inspection and repair. Key components (bearings, motors) are often standardized, ensuring easy replacement with universal parts—reducing downtime and maintenance costs. For example, replacing a bearing can be completed in 1–2 hours, compared to 4–6 hours for traditional fans.

Safety Features

Built-in safety protections include overheat protection (for motors), overload protection (preventing damage from excessive current), and anti-vibration mounts (reducing structural damage to the installation site). These features minimize the risk of equipment failure and ensure safe operation in high-demand industrial processes.

Packaging&Shipping

To ensure safe delivery and hassle-free installation, every mixed flow fan is securely packed using durable and protective materials. Depending on the model and dimensions, fans are shipped either fully assembled or with pre-assembled modules that require minimal on-site assembly. All components are wrapped in moisture-resistant film, cushioned with shock-absorbing foam, and securely packed in sturdy export-grade cartons or reinforced wooden crates to prevent damage during transportation.

For overseas shipments, the packaging is optimized for efficient container loading, clearly labeled for quick identification, and designed to withstand long-distance transit conditions. Each order is accompanied by a detailed packing list, installation manual, and handling guide to ensure a smooth and accurate setup upon arrival.

Shipping options include sea freight, air freight, or land transport, selected based on the project location and delivery schedule. Customized packaging solutions and OEM branding are available to meet specific customer requirements.

Company Profile

Shunda Air Conditioning Equipment Group Co., Ltd., established in 2005 and based in Luquantun Industrial Park, Shandong Province, is located at the core of China’s central air conditioning manufacturing hub. With over 70,000 square meters of production area and a skilled team of 230 employees—including 27 R&D engineers—Shunda has built a strong reputation for delivering high-performance and dependable HVAC and smoke exhaust solutions.

Our product portfolio features over 70 different models, covering everything from modular air handling units, fan coil units, and ventilators to axial and centrifugal fans, fire dampers, air ducts, and a wide range of system components. We hold ISO9001, ISO14001, and ISO18001 certifications and have received numerous national awards recognizing our commitment to quality, innovation, and customer service.

Under our established brand “Jinxin Shunda,” our products have been trusted in many high-profile projects across China, and our global reach continues to expand across Southeast Asia, Africa, and other international markets. At Shunda, we’re driven by continuous improvement, advanced manufacturing, and customer-focused service as we work hand-in-hand with partners around the world.

Our Service 

Requirement communication and technical consultation

• Shunda Group’s experienced engineers and technical team are always ready to assist with any product-related questions, offering expert guidance and timely technical support.

• We provide comprehensive documentation—including product catalogs, technical manuals, performance data sheets, installation drawings, and user guides—to help customers fully understand our solutions.

• Tailored product configurations and project solutions are created according to each customer’s specific needs and site conditions, ensuring optimal performance and cost-efficiency.

Product display and demonstration

• Customers are welcome to visit our manufacturing facility, where they can gain firsthand insight into our product design, structural features, materials, and production technologies.

• We also offer immersive online product demonstrations using VR and 3D animations, allowing customers to explore product features in a clear and interactive way.

• To support performance evaluation, we share detailed test results from both lab simulations and real-world projects, along with explanations of testing methods and standards to ensure transparency and reliability.

Installation and commissioning guidance and technical support

• Customers receive detailed installation guidance, including manuals, diagrams, foundation requirements, and a tool checklist, ensuring accurate and efficient setup by their teams.

• Remote installation support is available via online sessions, and we can also dispatch professional engineers for on-site guidance when required.

Quality assurance and maintenance

• We offer ongoing support that includes technical assistance and spare parts supply to ensure your equipment operates reliably over the long term.

• Our 24/7 after-sales service hotline is always available to respond to repair requests and urgent inquiries.

Periodic follow-up visits and maintenance services

• During the warranty period, we conduct follow-up visits every three months. After the warranty ends, we continue to check in annually through online communication to gather feedback and improve our products and services.

• Maintenance plans are customized based on your equipment’s usage frequency, operating hours, and environmental conditions to ensure optimal performance and efficiency.

Technical training

• We regularly host online training sessions to help customers better understand our products and maintenance procedures.

• In addition, we’ve set up a dedicated technical support email and online service portal. Any technical inquiries are addressed within 24 hours to provide timely and accurate assistance.

FAQ

Q: Are you a manufacturer or a trading company?
A: We’re a true manufacturer with our own dedicated production facility—not just a trading intermediary. Covering more than 70,000 square meters, our factory is equipped with state-of-the-art machinery and staffed by a skilled team, enabling us to produce a complete range of central air conditioning systems and components. From core units like modular and ceiling-mounted air handling units to essential accessories such as fire-resistant ducts, air valves, louvers, fan coil units, and blowers—everything is manufactured in-house with strict attention to quality, performance, and reliability. With years of experience behind us, we’re proud to offer solutions you can count on.

Q: Do you accept OEM or custom orders?
A: Absolutely! We gladly accept both OEM and custom orders. Whether you have detailed drawings or just a rough idea, our experienced engineers will collaborate with you to fine-tune the design and deliver exactly what you need. From tailoring dimensions and performance features to adding your branding and designing custom packaging, we’re committed to creating the perfect solution for you.