SDS FANS

SDS Ventilation

High-performance jet fans and tunnel construction ventilation systems designed for efficiency and safety.

SDS Jet Fan Section
01
Standard

Jet Fan

The SDS jet fan consists of a bell mouth, silencer, flow straightener, fan section and motor.

Features of SDS Series Jet Fan

  • Equipped with matching safety hangers and cantilevers.
  • Includes shock absorption devices.
  • Comes with other auxiliary accessories.

High reverse ventilation efficiency

Reversible series jet fan features high reverse ventilation efficiency; its reverse air flow is no less than 99% of the forward air flow. For unidirectional jet fans, the reverse air flow shall not exceed 70% of the forward air flow.

Max power-off time for forward to reverse rotation (or vice versa) is 30 seconds. At an ambient air temperature of 250°C, the fan can complete four reversing operations within 15 minutes at any time.

High Air Volume Tunnel Fan
02
Premium

High air volume

3X

Two impellers rotate in opposite directions generating a pressure three times that of a single-stage impeller.

Ensuring Construction Safety
Improving Construction Efficiency
Adapting to Complex Conditions
Oxygen Supply for Personnel

Frequency Converter Control

Adjustable between 30 and 50 Hz according to tunneling depth, effectively reducing power consumption costs.

Tunnel Construction Fan Installation
03
Durable

Construction Fans

Operational Specifications

Low Noise

Silencers are installed at the inlet and outlet to ensure quieter operation during complex tunnel projects.

High Pressure

Two impellers rotate in opposite directions generating a pressure three times that of a single-stage impeller.

High Capacity Construction Fan
04
Complete

Construction Fans

Operational Specifications

Two impellers rotate in opposite directions generating a pressure three times that of a single-stage impeller. Silencers are installed at the inlet and outlet.

Ensuring Safety

High Airflow

Flexible Practical

Low Noise

SDS Ventilation Systems • Product Overview 2026

Ensuring peak performance and safety in tunnel engineering environments.

Industry-Leading Performance

Redefining
High-Efficiency
Air Movement

Optimized Aerodynamic structures ensuring a 20% increase in static pressure while maintaining ultra-low noise levels.

Precision Impeller

Carbon fiber reinforced

Smart Control

IoT integrated system

Energy Standard

IE4+ Certified

Noise Level

65 dB(A)
Fan Technology

Build for Longevity

Reliable Operation in
Extreme Conditions

System Status

Optimal Running

Energy Saving

+12.07 kW/h REDUCTION
YUNCHENG
Engineering Authority

Smart Airflow
Solutions

Core Mission

"Leveraging 8 years of industrial mastery to redefine tunnel ventilation through high-precision VFD algorithms and aerodynamic excellence."

Index 01
/ SYSTEM

Intelligent VFD
Regulation

Proprietary frequency modulation technology that synchronizes with CO/NO2 sensors to provide demand-based ventilation, reducing operational energy costs by up to 40%.

Global Frequency Standard: 0-60Hz
MAX-FLOW
Aerodynamic Mastery

Heavy
— Duty

Optimized for 3000m+ high-altitude tunnels and hazardous mining environments with heat-resistant alloys.

30
30%

Efficiency
Benchmark

Reducing average operational carbon footprint via CFD-optimized geometry.

Quality Certification

Certified Power

Standardized under ISO 9001:2026. Every unit undergoes rigorous 72-hour stress testing before global deployment.

EX-PROOF
MA-MINING
CONTACT US
150
Live Stats
150K
m³/h Air Velocity
STABILITY INDEX98.9%

Verified by Sichuan Provincial Dynamic Systems Lab

Why Choose Us
UNCOMPROMISING

WHY CHOOSE US ？

Delivering Professional Ventilation Solutions with Excellence and Reliability

01

Strong Financial Foundation

With over 100 million RMB in fixed assets and a registered capital of 50 million RMB, we possess the robust financial strength and scale necessary to support large-scale industrial projects and ensure long-term stability for our partners.

02

Decades of Industry Expertise

Leveraging 8 years of deep industry experience, our team combines technical mastery with practical innovation. We understand the complexities of tunnel and mining ventilation, providing solutions that are both field-tested and future-proof.

03

Advanced Technological Innovation

We specialize in cutting-edge frequency converter control technology. Our products, such as the Tunnel Variable Frequency Fan series, are designed for high air volume, low noise, and energy efficiency, adapting seamlessly to diverse environmental demands.

04

Certified Quality & Proven Success

Backed by authoritative test reports and international certifications, our products have been successfully implemented in numerous high-profile engineering projects. Our commitment to quality is reflected in every piece of equipment that leaves our facility.

National High-Tech Enterprise

ABOUT YUNCHENG

Sichuan Yuncheng Fan Manufacturing Co.,Ltd. is a National High-Tech Enterprise with a long-standing commitment to the ventilation equipment sector. Leveraging robust R&D capabilities and state-of-the-art fabrication processes, the company specializes in the manufacturing and service of core products, including Tunnel Variable Frequency Fans and High-Power Axial Flow Fans. Through continuous technological iteration, we have successfully addressed critical pain points in tunnel construction, such as high acoustic levels and excessive energy consumption. We are dedicated to providing high-efficiency, eco-friendly, and intelligent ventilation solutions for global infrastructure projects.

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Factory Panorama
8+ Years of Industry Expertise
30M+ Registered Capital
60M+ Fixed Assets
10+ Certifications & Patents

  • INDUSTRIAL MANUFACTURING

  • MINING & EXTRACTION

  • MUNICIPAL INFRASTRUCTURE

  • EXPRESSWAY TUNNELS