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GENERATORS BY INDUSTRY
Generators for Manufacturing Plants: What Factories Run and What We Buy
A factory without power is payroll with no product. Manufacturers buy standby generation to protect against downtime that costs thousands per hour — and they sell it on a steady cycle of closures, moves, and upgrades.
What size generators factories run.
Plant generators typically range from 100 kW to 2 MW, sized to critical processes rather than the whole facility — the lines that cannot stop, the ovens that cannot cool mid-cycle, the CNC equipment that cannot lose position. Larger plants parallel multiple units; smaller shops often run a single set sized to their critical panel.
The emission rules that shape the market.
Stationary emergency engines at factories operate under EPA rules (40 CFR 60 Subpart IIII for compression-ignition engines), with tier requirements that have tightened over the years. Each tightening strands older-tier units that are still mechanically sound — regulation, not wear, sets the retirement date. State and local air districts can be stricter still.
When manufacturing plants sell their used generators.
Plant closures, reshoring and relocation moves, process changes that alter the critical load, and emission-rule retirements all put factory generators on the market. Closures in particular release complete, running installations — sometimes with transfer switches and paralleling gear included, which is worth more as a package.
Sell your facility’s generator to Ironcrest.
When your facility upgrades, consolidates, or decommissions, Ironcrest buys used generator sets outright — single units and full fleets. We buy the major makes: Cummins, Caterpillar, Kohler, and Generac, from 100 kW up to multi-megawatt installations.
- Send the details. Photograph the nameplate (make, model, kW/kVA rating), the hour meter, and the overall condition — inside and out.
- Get today’s offer. We price on make, size, hours, condition, and the current market — no public price sheets, no games.
- We handle pickup. Ironcrest runs nationwide. We coordinate rigging, loading, and transport from your facility.
Sell your generator to Ironcrest → | Call or text 312-880-8174
FREQUENTLY ASKED QUESTIONS
Questions, answered.
What size generator does a manufacturing plant need?
Typically 100 kW to 2 MW, sized to critical processes — the lines, ovens, and equipment that cannot stop — rather than the whole building.
Standby or prime power for a factory?
Standby for almost all factories: the grid is the primary source and the generator covers outages. Prime power only applies where there is no reliable grid.
What emission rules apply to factory generators?
EPA stationary-engine rules (40 CFR 60 Subpart IIII) set tier requirements for diesel emergency engines, and state/local air districts can be stricter. Tightening tiers regularly retire mechanically sound older units.
When do manufacturing plants sell used generators?
On plant closures, relocations, process changes, and emission-rule retirements. Closures often release complete installations including transfer switches and paralleling gear.
Does Ironcrest buy used manufacturing generators?
Yes — including complete installations with switchgear. Nationwide pickup; send the nameplate, hours, and photos for today’s offer.
INDUSTRY POWER
Downtime is the most expensive utility bill.
Manufacturing downtime costs run into the thousands of dollars per hour depending on the subsector — scrapped work in progress, idle labor, missed shipments. Against that math, a standby generator is cheap insurance, which is why plants from 100 kW to 2 MW keep them ready.
New: Explore the Ironcrest Copper Resource Center — grades, markets, identification guides, and interactive tools.
HOW SELLING WORKS
Three steps to an offer.
Material review
We review what the material is, its condition and quantity, and whether it fits a direct purchase.
Receive an offer
For qualifying material, we discuss a direct purchase offer and the next steps.