Blocked silo? Here's the fix - without hammers or climbing in.
A blocked silo doesn’t just interrupt production – it sends workers up ladders with hammers, batters your vessel walls, and turns a ten-minute discharge into an all-shift fight. Here’s the system that stops it happening again.
——THE SYSTEM
Intelligent Flow Aid Control System
Sensors read the vessel, control logic decides when and where to fire, and the terminals below clear blockages automatically — zero manual entry.
AIR CANNON
Storm Flow Aid
Millisecond burst of stored air eliminates arching at the source.
High-Impact Blockage Relief for Tough Bulk Materials
Engineered to tackle severe bridging, rat-holing, and material buildup in silos and hoppers. The Storm Flow Aid delivers an instant, targeted air blast to restore smooth material flow without damaging your equipment structure.
Instant Response: Millisecond air release eliminates stubborn blockages at the source.
Energy Efficient: Optimizes compressed air usage for minimal operational costs.
Durable & Low Maintenance: Built with high-grade components for long service life in harsh environments.
Technical Parameters
| Product Model | DFD-191A-W01 | DFD-144A-W01 | DFD-95A-W01 | DFD-72A-W01 |
|---|---|---|---|---|
| Tank Volume | 191L | 144L | 95L | 72L |
| Rated Working Pressure | 0.6-1.0MPa | |||
| Blasting Effectiveness | ≈30,000-80,000N | |||
| Inflation Time | 45-100s | |||
| Exhaust Time | 15ms | |||
| Withstand Test Pressure | 1.58MPa | |||
| Design Temperature | ≤150°C | |||
| Blasting Pipe Diameter | DN125mm | |||
Continuous 360° Acoustic Cleaning for Fine Particles
Utilizes low-frequency sound waves to fluidize fine ash, powder, and dust deposits across a full 360° coverage area. Prevents material bridging and buildup without causing structural fatigue or abrasion.
360° Omnidirectional Fluidization: Sound resonance penetrates tight corners and eliminates dead zones completely.
Zero Moving Parts: Maintenance-free acoustic design eliminates mechanical wear, tear, and failure risks.
Non-Destructive Operation: Prevents hopper wall damage caused by traditional mechanical hammering or excessive vibration.
SONIC HORN
S-Type Sonic Flow Aid
Low-frequency resonance keeps fine ash live, 360°, no moving parts.

Technical Parameters
| Product Model | DFD-SZ-75 | DFD-SZ-230 |
|---|---|---|
| Fundamental Frequency (Hz) | 75Hz | 230Hz |
| Output Power (dB) | 147dB | 150-160dB |
| Material (Generator / A / B / C / Sleeve) | SS304 / Ductile Iron / Ductile Iron / SS / Carbon Steel | SS304 / SS304 or SS310 / - / - / Carbon Steel |
| Diaphragm Material | Titanium Alloy | |
| Max. Working Temp. (Ductile Iron) | 1200°F (650°C) | |
| Max. Working Temp. (SS 304) | 1600°F (870°C) | |
| Max. Working Temp. (SS 310) | - | 2200°F (1200°C) |
| Weight (sleeve excluded) | 191lbs (86.2kg) | 54lbs (24.6kg) |
| Air Consumption | 80SCFM / 80PSI (38l/s @ 6.21bar) | |
FLOW BLADE CLEANER
FBC Nozzle
360° circumferential spray strips buildup inside chutes, drop pipes and hoppers.

Precision High-Pressure Spraying for Internal Buildup
Engineered for sticky and fine materials in chutes, drop pipes, and hoppers. The FBC Nozzle delivers a powerful 360° circumferential spray pattern to strip away stubborn wall deposits without clogging.
360° Full Coverage Spray: Circumferential blast design leaves zero blind spots inside narrow chutes and pipes.
Anti-Clogging Nozzle Design: Self-cleaning orifice structure ensures continuous airflow and prevents material backflow.
Compact & Easy Retrofit: Mounts directly on curved or flat chute sidewalls with standard flange connections.
Technical Parameters
| Product Model | DFD-50A-Z01 |
|---|---|
| Working Pressure Range | 0.6 ~ 1.0 MPa |
| Spray Angle | 360° Circumferential Spray |
| Spray Duration | 0.2 ~ 1.0 s Adjustable |
| Control Mode | Automatic Control / Manual Trigger |
| Applicable Medium | Compressed Air, Nitrogen |
| Installation Mode | Flange Connection / Quick-change Interface |
| Release Diameter | ≥ 1.2 m |
| Rebound Time | ≤ 0.05 s |
| Material | Stainless Steel 304 |
Automated High-Frequency Linear Impact for Caking Relief
Replaces traditional manual sledgehammers with high-frequency, controlled linear force. Designed to dislodge caked material and wall adhesion in hoppers and chutes automatically without manual labor.
Directional Linear Impact: Delivers focused, linear force vectors directly to problem areas for efficient material displacement.
Automated & Controllable: Easily integrated into control sequences to eliminate manual hammering and improve site safety.
Equipment Protection: Replaces destructive sledgehammer denting with engineered impact energy.
VIBRATOR
Linear Vibrator
High-frequency linear impact breaks caking – a
better hammer, automated.

Technical Parameters
| Product Model | Piston Size (mm) |
0.2 MPa | 0.4 MPa | 0.6 MPa | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| VPM (Vibrations/Min) |
Air Consump (L/sec) |
Force (kg) |
VPM (Vibrations/Min) |
Air Consump (L/sec) |
Force (kg) |
VPM (Vibrations/Min) |
Air Consump (L/sec) |
Force (kg) |
||
| DFD-XZD-300 | 76 | 1400 | 11.8 | 129 | 1800 | 15.1 | 213 | 2000 | 18.88 | 230 |
| DFD-XZD-138 | 35 | 2500 | 4.72 | 55 | 2800 | 5.9 | 95 | 4000 | 7.08 | 116 |
Measured, not claimed
Frequently asked questions
How do I know whether I need air cannons, a sonic horn, or a vibrator?
Can air cannons damage my silo?
Can we install on a vessel that's in service?
How many air cannons do we need?
Do you support installation and service outside China?
Get a free flow diagnosis for your silo.
Drawings, a material spec, or a short video of the blockage – an engineer replies within 24 hours.
