Evo Centrifugal Push-Pull Exhaust Fan
The fan is mainly composed of blades, belt pulley, blade hub, belt, bearing, blade support, shutters, frame, protection mesh and motor. The centrifugal push-pull mechanism automatically opens and closes shutters for maximum airflow efficiency and weather protection.
- 20–30% Higher Airflow Efficiency
- Fully Open 90° Shutter System
- Minimal Air Resistance
- Automatic Shutter Operation
- Industrial Grade Ventilation Performance
Key Features
Push-Pull Working Mechanism
The EVO Centrifugal Push-Pull Exhaust Fan uses an advanced centrifugal linkage system that automatically opens the shutters fully during operation and closes them when the fan stops. This ensures maximum airflow efficiency, reduced resistance and superior ventilation performance.
Centrifugal weights activate the linkage system and force the shutters to open fully at operating speed, ensuring maximum airflow with minimum resistance.
Airflow Performance Diagram
The fully opened shutter design creates an unobstructed airflow path which increases ventilation efficiency and air volume compared to conventional exhaust fans.
Hummer Fan vs Push-Pull Fan
| Feature | Hummer Fan | Push-Pull Fan |
|---|---|---|
| Shutter Mechanism | Gravity Driven | Centrifugal Mechanical Linkage |
| Opening Angle | Less than 90° | 90° Fully Open |
| Air Volume | Standard | 20-30% Higher |
| Efficiency | Good | Excellent |
| Initial Cost | Lower | Higher |
| Installation | Easy | Easy |
Performance Specifications
| Model | Drive | Blade Dia | Air Flow | Pressure | Noise | Power |
|---|---|---|---|---|---|---|
| EVO-1380 (50") | Belt | 1270 mm | 46000 m³/h | 57 Pa | ≤60 dB | 1100 W |
Fan Blade
Material: 430 Krupp Stainless Steel with 1.2mm Thickness
Feature: Blade shape is designed after double tested. Big airflow, No deformation, No broken.
Fan Belt Pulley
Material: Aluminum-magnesium Alloy
Feature: Good outlook with light weight. Especially reinforcing rib to increased strength. No broken. Long service life.
Fan Blade Hub
Material: Aluminum-magnesium Alloy
Feature: Fan blade hub is made by primary pressing. High strength, No deformation and broken. Smoothly edge. Highly accurate position. Easy to install.
Motor
Type: Chinese Motor and Siemens Motor
Feature: Voltage and frequency can be customized according to requirements. Equipped with phase failure protection device, IP55 protection class and F grade insulation.
Protection Mesh Guard
Material: Hot-Dip Galvanized Wire with Electrostatic Plastic Spraying
Feature: Rust-resistant construction with durable coating. Attractive appearance and long-lasting performance.
Frame
Material: 275g Coating Weight Galvanized Sheet
Feature: Manufactured using advanced automatic equipment with precision punching and bending for high accuracy and durability.
Shutter Plastic Part
Material: High Strength Nylon
Feature: Durable and deformation-resistant design with smooth edges. Enables easy shutter opening and closing.
Blade Support
Material: Hot-Dip Galvanized Steel (3mm Thickness)
Feature: Strong support structure designed to resist rust, provide stability and ensure long service life.
Bearing
Feature: High-quality double-row bearing with low noise operation, high precision and extended service life.
Fan Belt
Type: Chinese Belt and Japanese Mitsuboshi Brand Belt
Feature: High durability belt designed for smooth operation, long service life and minimal maintenance.
Applications
- Poultry Farms
- Greenhouses
- Dairy Farms
- Industrial Buildings
- Warehouses
- Manufacturing Facilities