Advanced Suspension Centrifugal Blowers

Delivering 100% oil-free, ultra-low noise, and extreme energy-saving aeration solutions for global industrial and environmental projects.

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Magnetic Suspension Blowers

100% oil-free, zero-friction centrifugal blowers. Engineered for heavy industries, delivering ≥25% energy savings over traditional models.

3D Flow Impeller Engineering

Advanced CFD-optimized impellers for fans and compressors. Built to maximize aerodynamic efficiency and reduce operational noise.

Industrial Acoustic Detection

Visualize partial discharge and gas leaks with T1000, and perform precision 192kHz multi-channel analysis with T2000

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Two Divisions, One Mission — Precision in Motion & Sound

Feicisail delivers advanced fluid machinery solutions—magnetic suspension blowers and 3D flow impellers—serving wastewater, cement, chemical, and steel industries worldwide. Chengqiao Intelligent specializes in industrial acoustic inspection, providing on-site acoustic imaging (T1000) and multi-channel signal analysis (T2000) for power, energy, and petrochemical clients. Together, we cover the full spectrum from rotating equipment to diagnostic intelligence.
About QiDoo

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Fluid Machinery & Acoustic Intelligence

From rotating equipment to diagnostic instrumentation — explore our two business divisions

Magnetic Suspension Blowers

Oil-free centrifugal blowers with active magnetic bearings. 22–150 kW, flow 20–280 m³/min. Ideal for aeration, pneumatic conveying, and process gas.

3D Flow Impeller Design & Manufacturing

CFD-optimized impellers for fans, compressors, and turbines. Custom profile design, five-axis CNC machining, performance testing.

T1000 Acoustic Imager

Portable acoustic imaging for PD, gas leaks, and abnormal noise. 124-channel microphone array, real-time sound mapping, visual traceability.

T2000 Signal Analyzer

6-channel / 2-output signal analysis platform. 192 kHz sampling, 0.1 Hz–80 kHz range, 110 dB dynamic range. BNC input, RJ45 to PC.

Qidoo Corporate Overview

Proven Track Record

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Trusted by Industry Leaders

"Since the maglev blower was put into operation, energy consumption has dropped by 28%, and O&M workload has been significantly reduced."

Rated 4.7 out of 5
Eng. Wang — Equipment Director

"The 6-channel synchronous acquisition and sweep output of the T2000 made building our test link much faster."

Rated 4.6 out of 5
Dr. Zhang — Acoustic Laboratory

"Gas pipeline leaks are instantly visible with the acoustic imager, drastically reducing safety risks."

Rated 4.3 out of 5
Senior Eng. Li — Electric Power Research Institute

"The T1000 turned substation PD inspections from experience-based judgment into visual operations, clearly improving efficiency."

Rated 5 out of 5
Manager Chen — Energy Center, Steel Plant

Have a Project? Let's Talk.

Whether you need high-efficiency magnetic suspension blowers, custom 3D flow impellers, or acoustic inspection solutions — our team is ready to discuss your application. Request a consultation, product demo, or trial evaluation.

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