Product Application

Centrifugal Air Handling System
Core Philosophy: This advanced ventilation solution prioritizes optimized airflow dynamics and versatile integration across diverse environments. Leveraging centrifugal acceleration principles, the unit achieves rapid air induction and expulsion through precision-engineered impeller mechanisms.

Operational Scope:

• Commercial Infrastructure: Enhances atmospheric exchange in expansive venues (e.g., retail complexes, hospitality centers) to elevate IAQ (Indoor Air Quality) indices.
• Industrial Deployments: Neutralizes hazardous particulates and gaseous emissions in manufacturing plants, fostering OSHA-compliant workspaces.
• Adaptive Customization: Modular configurations support bespoke airflow profiles and pressure gradients for specialized operational demands.

Performance Advantages:

1. High-Capacity Ventilation: Delivers 20-30% greater CFM (Cubic Feet per Minute) output compared to axial counterparts, ideal for 10,000+ sq.ft. spaces.
2. Noise-Optimized Architecture: Incorporates vibration-dampening mounts and aerofoil blade designs, maintaining <55 dB(A) at 3m distance.
3. Space-Efficient Engineering: Slim-profile housing (depth ≤800mm) enables retrofitting into existing HVAC infrastructures without structural modifications.

Product Motor

Copper-Wound Electromechanical Drive
Design Innovations:

• Oxygen-free copper windings (99.95% purity) minimize eddy current losses while achieving IEC 60034-30-1 IE4 premium efficiency standards.
• Finite Element Analysis (FEA)-optimized magnetic circuits enhance torque density by 18% across 0.25-100HP power bands.

Operational Benefits:

1. Energy Conservation: 92-96% operational efficiency reduces kWh consumption by 12-15% under variable load conditions.
2. Thermal Resilience: Class H insulation (180°C rating) coupled with copper's 401 W/m·K thermal conductivity prevents hotspot formation during 24/7 duty cycles.
3. Acoustic Refinement: Skewed rotor slots and precision bearings achieve NEMA MG-1 Grade A sound levels, enabling residential-compatible noise thresholds (≤42 dB).

Implementation Scenarios:

• Industrial Automation: Synchronizes with CNC machinery and conveyor systems, sustaining ±0.2% speed regulation under dynamic loads.
• Domestic Integration: Powers HVAC compressors and refrigeration units with UL 1004-7 compliant safety protocols.

Product Fan Wheel

Metallic Centrifugal Impeller Assembly
Performance Attributes:

1. Structural Integrity
   Cold-rolled steel/aluminum alloy construction withstands 15,000-25,000 RPM operational stresses, achieving ISO 21940-11 G2.5 balance grade.

2. Abrasion Resistance
   Hard-anodized surfaces (500-800 HV hardness) extend service intervals to 40,000+ hours in particulate-laden airstreams.

3. Thermal Stability
   Retains dimensional accuracy within ±0.05mm at 250°C ambient conditions, suitable for foundry exhaust applications.

4. Combustion Safety
   ASTM E84 Class A fire-rated materials inhibit flame propagation, critical for chemical processing facilities.

5. Maintenance Economy
   Non-corrosive coatings and ISO 9001 machining tolerances reduce lifecycle costs by 30% versus polymer alternatives.

Product Parameters

• High Strength: Metal fan wheels generally have high strength, capable of withstanding greater stress and load. They are suitable for high-load and high-speed applications, minimizing deformation and damage, thus ensuring stable operation of equipment.

• Good Wear Resistance: Metal materials usually exhibit excellent wear resistance, which enhances their durability against abrasion and friction. This leads to a longer lifespan for the fan wheel, reducing the need for frequent replacements and lowering maintenance costs.

• High Temperature Tolerance: Metal materials maintain stable performance at high temperatures, without deformation or failure. This makes metal fan wheels suitable for applications in high-temperature environments, such as high-temperature ventilation systems and heaters.

• Good Dynamic Balance: The uniform density of metal materials allows for precise machining and balancing, resulting in excellent dynamic balance. This reduces vibration and noise during operation, improving the smoothness and comfort of equipment operation.

• Fire Resistance: Metal is non-combustible, offering better safety in environments with high fire risk. Metal fan wheels provide enhanced security, reducing the risk of fire.

Product Dimension Diagram

Product Dimension Parameters

Company Profile

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd. originated from Foshan Nanhai Zhongxing Hardware Electrical Appliance Factory (with brands including Zhongdian Fresh Air and Zhongdian Xinke). The company specializes in the research, development, and manufacturing of DKT external rotor air conditioning fans (snail-type and square-type), mixed flow booster duct fans, KTF stainless steel external rotor centrifugal air handling units, air curtains, purifying low-noise fans, and centrifugal low-noise ventilation equipment. It is a modern national high-tech enterprise focusing on EC frequency conversion digital energy-saving fans. The manufacturing base is located in Foshan, Guangdong Province.

Since its establishment in 1997, the company has adhered to a quality-centric approach and actively developed its proprietary brand, Zhongdian. It has successively passed ISO9001, CE, and national CCC mandatory product certifications and has obtained multiple utility model patents. The company ranks among the top in the industry in terms of comprehensive strength and brand influence.

Guangdong Zhongdian Jiajin Environmental Technology Co., Ltd. operates under the philosophy of "Technological Innovation, Respect for Talent, Reform and Innovation, Pursuit of Excellence." The company has introduced over ten advanced automation devices and possesses a testing laboratory that complies with the national standard GB/T 1236-2017 "Performance Testing of Industrial Fans with Standardized Ducts," along with a 5S management system. It emphasizes user experience with its products and focuses on continually meeting customer needs. Through relentless efforts, the company has become a leader in the fresh air system market.

The company adheres to the principle of "Quality First, Quantity Second," earning trust from users across the country with its excellent quality and outstanding performance. It strives to enhance competitive advantages in pre-sales, sales, and after-sales services, and continues to uphold the creed of "Customer First, Service Excellence." The company is dedicated to continuous product and service iteration, aiming to become a leading brand in high-end fresh air system equipment.

EXHIBITION SHOW

We have strong sales network system and can undertake a large number of OEM/ODM orders.. Our products are mainly exported to Europe, America, the Middle East and Southeast Asia, and old customers account for up to 30%.Our products are made of pure copper tubes and use Yongan motors, has the characteristics of high quality, super mute, comfortable style and reasonable price. We have independent R & D and design team that can meet any comments and conditions you have on product customization and technology research and development.

The team

Our team will also carry out some outdoor group building activities to enhance the cohesion of employees and devote the mselves to work with more enthusiasm.

Showcase of Factory Capabilities