Precision Environmental Control Applications

1. Culinary Airspace Isolation
   • Blocks 98.5% kitchen particulate matter (PM2.5 ≤5μg/m³) in 300m² hotel dining areas
   • Maintains 15Pa negative pressure differential (EN 13779:2025 compliant)
2. Entomological Exclusion System
   • 360° photonic barrier (285nm UV-C) eliminates 99.9% flying insects
   • Meets WHO 2025 Vector Control Guidelines for food service areas
3. Acoustic Optimization Interface
   • Reduces 22dB(A) exterior noise infiltration at 2.5m/s airflow velocity
   • Compliant with ISO 3744:2025 for conference room sound management
4. Thermal Boundary Enforcement
   • Maintains 3°C temperature differential in elevator shafts (ASHRAE 55-2025 validated)
   • Prevents 92% HVAC energy loss in shopping complex transitions
5. Architectural Climate Enhancement
   • Creates 0.3-0.5m/s laminar airflow curtain in 8m-high lobbies
   • Reduces HVAC load by 38% in LEED v6-certified office buildings

Aerospace-Grade Structural Engineering

Curvilinear Casing Technology

• Parametrically optimized curvature (0.06Cd drag coefficient via ANSYS Fluent simulations)
• Micro-arc oxidation coating withstands 1,500h salt spray (ASTM B117-2025)

Surface Treatment Innovations

• Ag+ ion embedded nano-ceramic layer (ISO 22196:2025 antimicrobial efficacy)
• 8H hardness rating for scratch resistance (ASTM D3363-25 standard)

High-Performance Drive System

Ultra-Efficient Motor Architecture

• C11000 electrolytic copper windings (99.95% purity) achieve IE5 efficiency class
• Self-lubricating ceramic ball bearings (ABEC-7 precision, 80,000h MTBF)

Smart Thermal Regulation

• Graphene-encapsulated sensors monitor winding temperature (±0.5°C accuracy)
• Automated shutdown at 138°C with MODBUS RTU fault code output

Advanced Turbodynamic Impeller

Composite Aerofoil Design

• 72-blade glass-fiber reinforced polyamide wheel (ISO 21940-11:2025 balanced)
• Delivers 25m³/s airflow at 58dB(A) (AMCA 210-2025 certified)

Precision Engineering Features

• 0.02mm blade tip clearance minimizes vortex shedding losses
• UL 507-2025 compliant for commercial ventilation systems

Product Dimensions Diagram

Product Specifications

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