Product Description 

The PG pneumatic air cannon is a powerful flow aid system for silos and hoppers designed to eliminate material buildup, bridging, and rat-holing in bulk storage systems. Installed on the silo wall, the air cannon releases short bursts of compressed air that break compacted material and restore proper flow of powders and bulk solids such as cement, fly ash, aggregates, and grains.

This system is widely used in industries where material tends to stick or compact inside silos, causing production interruptions.

Key Features

• Compact design with integrated valve

• Air blast up to 6 bar (87 PSI)

• Short, high-energy air pulses

• Electro-pneumatic or fully pneumatic activation

• Suitable for indoor and outdoor installation

• Galvanized steel and aluminum construction

• Zero impact on silo welds and structure

Key Benefits

• Eliminates material bridging and rat-holing in silos
• Improves discharge of powders and bulk materials
• Reduces downtime caused by blockages
• Suitable for difficult materials such as cement, fly ash, and lime
• Durable design for industrial bulk material handling systems

Typical Applications

• Cement silos

• Flour and feed bins

• Plastic and chemical hoppers

• Wood chips and fibers

• Big-bag emptying stations

How a Silo Air Cannon Works

A silo air cannon stores compressed air in a pressure chamber connected to a fast-acting valve. When activated, the valve releases a powerful burst of air directed along the silo wall. The sudden expansion creates a shockwave that dislodges compacted material and restores normal flow inside the silo or hopper.

This method is highly effective for breaking stubborn buildup in bulk material handling systems.

Technical Specifications

Working pressure: 3–6 bar (44–87 PSI)
Activation: Solenoid valve or pneumatic
Construction: Galvanized steel and aluminum
Operating temperature: −20 °C to +80 °C
Air consumption:

• PG 40: 3.6–5.3 Nl

• PG 63: 6.4–11.6 Nl

• PG 80: 12.5–21 Nl

Available Models (Variants)

• PG 40

• PG 63

• PG 80

Suggested Shopify Settings

Product type: Pneumatic Flow Aid
Vendor: OLI Vibrators
Tags:
air cannon, air blaster, silo flow aid, pneumatic flow aid, hopper flow, OLI, bulk handling, cement silo

Variant Structure (recommended)

Option name: Model

• PG 40

• PG 63

• PG 80

FAQ

What is an air cannon for silos?
An air cannon is a pneumatic device that releases high-pressure air bursts inside silos to break material buildup and maintain proper flow.

When should you use a pneumatic air cannon?
Air cannons are used when bulk materials form bridges, arches, or rat-holes that stop flow inside silos and hoppers.

How many air cannons are needed for a silo?
The number of air cannons depends on silo diameter, material properties, and the severity of buildup problems.

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