The ACT Group cleans silos, bins and hoppers across the Inland Empire from our home base in Fontana — no confined-space entry, MSHA and OSHA trained crews, and a truck that is usually less than an hour from your plant. Serving Ontario, Rialto, Colton, Riverside, San Bernardino, Corona, the High Desert and every plant in between since 1991.
The Inland Empire is where we live. Our shop at 14644 El Molino St. in Fontana sits in the middle of the largest concentration of cement, aggregate and bulk-processing plants in the western United States — the kilns and grinding mills along the I-10 and I-215 corridors, the aggregate pits in the Cajon and Santa Ana river washes, the High Desert cement and mining operations up the I-15, and the feed, food and recycling plants that fill in between. When one of those silos bridges, ratholes or loses capacity to buildup, we are the crew that shows up first, because we are already here.
No-Entry Cleaning: Our Silo Whip technology works from the top of the vessel. Nobody goes inside, which means no confined-space permits, no standby rescue crew, and no exposure to engulfment — the hazard that kills more silo workers than any other.
Capacity Back the Same Week: Most Inland Empire silos are within 45 minutes of our yard, so mobilization is a morning, not a project. Cement, clinker, fly ash, lime, sand, aggregate fines, grain and feed all come out.
Local Since 1991: We have unplugged silos for Inland Empire plants for 35 years. Our customers in the region include CalPortland, Cemex and Granite Construction, along with the smaller operations that keep the region’s concrete, asphalt and feed moving.
Silo, bin and hopper cleaning: Bridged material, ratholes, wall buildup and hardened product removed from the top down with the Silo Whip, on cement, aggregate, fly ash, lime and processing silos of any diameter.
Scheduled maintenance cleanouts: Planned cleanings during kiln outages and shutdowns, so silos never reach the plugged-and-emergency stage.
Emergency response: A plugged silo at a batch plant in Corona or a cement terminal in Colton is a same-day call. We are mobilized 24/7 at (888) 480-0680.
Air cannons and flow aids: After the cleanout we can install or service air cannons, vibrators and liners so the buildup does not come back — see our air cannon service.
Silo inspection: Wall condition, cone wear, aeration and discharge equipment documented while the vessel is empty — the cheapest inspection you will ever get.
Fontana, Ontario, Rancho Cucamonga, Rialto, Colton, San Bernardino, Redlands, Riverside, Corona, Moreno Valley, Perris, Jurupa Valley, Chino, Pomona, Beaumont and Banning; the High Desert including Victorville, Apple Valley, Hesperia, Lucerne Valley and Barstow; and the Coachella Valley. If it is in Riverside or San Bernardino County, it is local to us.
Most of the Inland Empire sits inside the South Coast AQMD; the High Desert falls under the Mojave Desert AQMD. Silo cleaning done from the top, with the vessel sealed and dust-controlled, keeps a cleanout from becoming a fugitive-dust event under Rule 403 — ask us and we will plan the job around your permit conditions.
Bridged, ratholed or just running out of room? Call and a Fontana crew is moving. Planning an outage? Tell us the date and we will have the silo empty before the kiln comes back.
This is the Inland Empire page for our silo cleaning service. See also silo cleaning in Los Angeles and silo cleaning in Nevada, or contact our team for a fast quote.
Fontana crews, Inland Empire silos — usually under an hour away
Level sensors read the top of the pile, not the hardened wall coat behind it. Inland Empire cement and aggregate silos routinely lose 30–50% of working capacity to buildup before anyone notices the discharge slowing down. A cleanout gives that capacity back in a day, from the top, with nobody inside.
Air cannons, vibrators and liners installed while the vessel is open, so the next cleanout is years away instead of months.
Usually the same day. Our crews and equipment are based in Fontana, so Ontario, Rialto, Colton, Riverside and Corona are under an hour and the High Desert is about ninety minutes. Call (888) 480-0680 — we answer 24/7.
No. The Silo Whip works from the top of the vessel, so there is no confined-space entry, no permit, no standby rescue team, and no engulfment risk. It is the reason plants with strict safety programs use us.
Cement, clinker, fly ash, lime, kiln dust, aggregate fines, sand, gypsum, grain and feed, recycled material — anything that bridges, ratholes or cakes to a wall. Bring us the odd one; we have probably seen it.
That is the best time to do it. Tell us the window and we schedule the crew, bring the equipment the day before, and hand the silo back empty before startup.
Why silos bridge and rathole, how a no-entry whip cleaning actually runs, and when a plugged silo has earned an air cannon. Free reading, no forms.
Rathole vs. bridge →How no-entry cleaning works →Applied Conveyor Technology — bulk material handling experts. Dust control, conveyor services, silo cleaning, parts, and engineering.
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Silo Cleaning: Inland Empire · Los Angeles · Nevada
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