Revolutionary Air Exchange System
Elevate your commercial and industrial ventilation standards with our ceiling-integrated positive pressure exhaust solution, engineered for large-scale atmospheric optimization. Combining industrial-grade durability with aerospace-derived blade design, this system achieves rapid evacuation of contaminated air while maintaining pressurized fresh air infusion—critical for ISO-certified cleanrooms, pharmaceutical facilities, and high-traffic public venues. Its multi-stage centrifugal architecture delivers 35% faster air replacement than conventional models, ensuring compliance with OSHA 29 CFR 1910.94 air quality mandates.

General assembly Drawing

Installation Protocol

Stage 1: Structural Preparation
Construct galvanized steel support grid using M10 anchor bolts (torque: 45 N·m) spaced ≤600mm apart

Stage 2: Core Unit Mounting
Install vibration-isolated plenum chamber with 10mm neoprene gaskets at all contact points

Stage 3: Duct Integration
Align directional coupler per laser-etched airflow indicators (←EXHAUST | FRESH→)
Engage quarter-turn camlock mechanism until torque limiter clicks (18 N·m threshold)

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.