Product Overview
Introducing a paradigm shift in industrial airflow technology, our premium-grade circular duct fans redefine ventilation excellence for mission-critical commercial and industrial ecosystems. Engineered with aerospace-grade metallic alloys and precision-balanced impellers, these ceiling-integrated systems deliver uncompromising air exchange rates while maintaining operational integrity across decades of continuous service. Their revolutionary blade geometry, inspired by turbofan propulsion principles, achieves 22% greater volumetric efficiency than conventional models, making them indispensable for environments demanding surgical-grade air purity and climate control.

General assembly Drawing

Installation Protocol

Phase 1: Structural Preparation

• Fabricate load-bearing ceiling framework using galvanized steel U-channels (minimum 2mm thickness)
• Verify structural alignment with laser leveling tools (tolerance: ≤3mm/m²)

Phase 2: Core Unit Integration

• Mount vibration-dampened enclosure onto pre-engineered support lattice
• Implement seismic restraint brackets in earthquake-prone zones (Zone 3+ compliance)

Phase 3: Ductwork Synchronization

• Orient directional airflow coupler per rotational indicators (clockwise turbine alignment)
• Engage triple-point locking collar:
  a. Align red alignment markers
  b. Rotate 45° until tactile feedback click
  c. Torque to 18-22 N·m using calibrated wrench

Product Performance Curve

Product Performance Specifications

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd.

originated from Foshan City Nanhai Zhongxing Hardware and Electrical Appliance Factory (with brands including Zhongdian Fresh Air and Zhongdian New Science), is a modern National High-tech Enterprise mainly engaged in manufacturing:

DKT external rotor air conditioning fan (curved and square),

Mixed flow pressurized duct fan,

KTF stainless steel external rotor centrifugal fan cabinet,

Air curtain fan,

Purification type low-noise fan,

Centrifugal low-noise ventilation equipment,

EC frequency conversion digital energy-saving fans, etc.

The manufacturing base is located in Foshan City, Guangdong Province.

Since its establishment in 1997, we have always adhered to the quality line and actively created our own brand, Zhongdian. We have successively passed ISO9001, CE and CCC certifications, and obtained multiple utility model patents. Our comprehensive strength and brand influence rank among the top in the industry.

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd. adheres to the business philosophy of "technology driven development, respect for talent, reform and innovation, and pursuit of excellence", introduces numerous advanced automation equipment and 5S management systems, attaches importance to user experience of products, and takes continuous customer satisfaction as the business orientation. After unremitting efforts, we have become the leader in the fresh air system market.

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd. adheres to the principle of prioritizing quality over output, and has won the trust of users across the country with excellent quality and outstanding performance. And strive to enhance competitive advantages in pre-sales, in sales, after-sales and other aspects, and will continue to adhere to the creed of customer first and service first. It is the continuous iteration of products and services, striving to become a leading brand in mid to high end fresh air system equipment.