LIVE OPERATOR’S MANUAL

Flash Cannon G400 Series Air Cannons

Installation, operation, and maintenance — everything in the printed manual, alive on one page. Built for high-temperature applications up to 400°F, on kilns running as hot as 2,000°F.

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The G400 Series Lineup

Four models, one job: restore material flow with a sudden, high-energy blast of stored compressed air.

What It Does

The Flash Cannon is a direct-blast aerator: a compressed air reservoir with a quick-opening valve that releases stored air in one sudden blast, directed through a discharge pipe to break up material that is bridging, arching, rat-holing, or clinging in silos, hoppers, chutes, and storage piles. The direct-blast design lets air escape straight into the discharge pipe with no bends or obstructions — the faster the discharge, the greater the force, the more material moved. Where vibration is impractical (concrete bunkers, ground piles, cohesive materials like wood chips), the cannon is the answer.

⚠ Safety First

How It Fires — The 8-Step Cycle

1. A 3-way normally-open valve admits plant air; pressure seals the piston against the seat.
2. Plant air passes the check valve in the valve cap and fills the pressure vessel.
3. The cannon sits charged on standby, ready to fire.
4. Switching the 3-way valve exhausts the fill line — pressure behind the piston drops.
5. Tank pressure forces the piston back to the open position.
6. Stored air escapes through the discharge in an explosive blast, lifting and separating material.
7. Re-switching the valve restores plant air and recharges the cannon.
8. Plant air pressure re-seats the piston, sealing out contaminants.

Air Requirements at a Glance

• Operating pressure: 45–125 psi filtered, regulated air (80–100 psi is the sweet spot).
• Filtration: 40-micron filtered air only.
• Lubrication: none required — ever.
• Relief: tank carries a 125 psi pressure relief valve; it can also fully exhaust the tank without firing.
• Nitrogen, CO₂, or other inert gas can substitute for plant air.

Manual or Automatic Control

Manual: a 3/4” 3-way normally-open manual valve — open to fill and stand by, closed to fire, back open to refill. Automatic: a 3/4” normally-open solenoid driven by a Flash Master Blaster sequencing timer (or momentary switch); energizing the solenoid fires the cannon, de-energizing refills it. Thanks to the factory-mounted G-Series Quick Exhaust Valve, the control valve can sit up to 100 feet from the cannon with zero loss of blast force.

Required Accessories & Replacement Parts

Every component below is available from ACT — add them to a quote and we’ll price the full system. (Direct product links are coming to this page as we add each part to the store.)

• Shut-off ball valve — isolates the system from plant air; 1/2”+ recommended, one per FRG.
• Filter-Regulator-Gauge (FRG) — filters and regulates supply; drain daily; one per four cannons.
• Airline check valve — prevents accidental firing on supply-pressure loss; one per cannon.
• 3-way control valve (manual or solenoid, 3/4”) — the trigger.
• G-Series Quick Exhaust Valve — factory-mounted, patent-pending, spring-free immediate closure.
• Mount & discharge assemblies — 4” #850040 / 6” #850060
• High-temp diffusion nozzles (1650–2100°F) #860040 / #860049
• Safety cable kit #169014
• Master Blaster timer TMB-108 (8 circuits, 110V) #891008.

Start-Up in 10 Steps

1. Secure every connection — cannons, discharge assemblies, air and electrical.
2. Confirm all 3-way control valves are open.
3. Set the FRG to minimum pressure.
4. Open the shut-off ball valve to admit plant air.
5. Set the FRG to charging pressure — minimum 40 psi, maximum 125 psi, 80–100 psi for most work.
6. Check every airline connection for leaks; mark any found and depressurize.
7. Repair leaks and repeat from step 3. Clean? Continue.
8. Test-fire each cannon individually (manual lever, or solenoid via switch/timer manual mode).
9. Configuring a sequencing timer? Set firing order, time between blasts, and time between cycles per the timer manual.
10. System is ready for service.

Test firing before first mounting: lay the cannon on its side, support it against recoil, relief valve in place, 45–60 psi only, eye and ear protection on, everyone clear of the discharge.

Maintenance — What Actually Needs Doing

• Quick Exhaust Valve bands: replace every 50,000 blasts or annually. Two bands, always — if “Replace Bands Now!” is visible, the outer band is gone; replace immediately.
• FRG: drain the filter reservoir daily; wash with warm soapy water as needed; 40-micron replacement elements.
• Mounts: must stay rigid — check and retighten periodically; repair or replace rusted parts.
• Internal valve: designed for years of maintenance-free service; inspect on a rotating semi-annual/annual schedule in harsh environments.
• Before ANY service: shut off air, fire the cannon or pull the relief-valve ring until the tank is fully empty. An unrelieved tank can discharge unexpectedly — this can be fatal.

Troubleshooting: Weak or No Blast

Full troubleshooting, dimensions, plumbing diagrams, performance data, and parts drawings live in the PDF appendices.