12kg Coffee Roasters for Sale
12 Kg Diedrich IR-12 Roaster - 2005 - with Loader & Destoner Excellent Condition - Used
Diedrich's IR-12 - Roaster IR Roaster with Diedrich Loader and Destoner An Incredible Machine Set! Can you say "stainless steel"?! Check out t...
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12 kg US Roaster Corp "Millennium" Roaster - 2009 - Very Good Condition - Used
12 kg Kilo "Millennium" Model coffee roaster. Four roasts per hour. Designed for easy operation, low maintenance, and a long lifetime. Proven Trac...
View full details12kg Coffee Roasters for Growing Wholesale Output
A 12kg coffee roaster sits at the sweet spot between small-batch craft and full commercial output, the size many roasters move to once they're supplying several wholesale accounts or a busy retail counter at once. This collection features inspected used 12kg roasters from Diedrich, Probat, San Franciscan, and other established brands, each listed with year, condition, and included accessories so you can compare options directly. Is a 12kg unit the right fit yet? Browse the full range of medium batch roasters (5-18kg) to see how batch sizes above and below this one compare.
Choosing a 12kg Roaster for Your Roastery
A 12kg roaster is usually the step up roasters take once weekly production needs to keep pace with steady wholesale demand or a growing retail counter. At this batch size, you get real throughput without the footprint, utility draw, or price tag of an 18 kg-plus production line.
Every listing on this page goes through an inspection before it's published, so year, condition, fuel type, and included accessories like loaders, destoners, and afterburners are documented up front. That makes it easier to compare a used Diedrich IR-12 side by side with a Probat L12 or P12, or a San Franciscan model, rather than guessing from photos alone.
12kg Roaster Models at a Glance
| Model | Brand | Good to Know |
|---|---|---|
| IR-12 | Diedrich | Infrared burner with independent airflow control, a common next step for roasters already running a smaller Diedrich. |
| L12 | Probat | Classic manual drum design. Older units typically roast and cool in separate steps rather than at the same time. |
| P12 / P12-2 | Probat | Newer generation with roast-and-cool automation and updated digital controls. |
| SF-25 | San Franciscan | Roasts and cools in one drum, often paired with a matching afterburner or cyclone setup. |
Still weighing brands? This Probat vs. Diedrich comparison guide breaks down roast style, airflow control, and price range in more depth. You can also browse the full Diedrich roaster lineup, Probat roaster lineup, or San Franciscan collection to compare batch sizes above and below 12kg within a brand.
Have a 12kg roaster of your own to move? List it with CoffeeTec and reach buyers already searching this exact size and brand combination.
FAQs
How much does a used 12kg coffee roaster cost?
+Pricing depends on brand, model year, and condition. Each listing above shows its own price, year, condition, and included accessories, so you can compare options directly rather than working off an average.
What's the difference between a Diedrich IR-12 and a Probat L12 or P12?
+The IR-12 uses Diedrich's infrared burner technology with independent airflow and drum controls, while Probat's L12 and P12 use a more traditional drum-and-flame setup. The P12 adds roast-and-cool automation that the older L12 design doesn't offer.
How many batches can a 12kg roaster run in a day?
+Most 12kg roasters comfortably handle several batches per day depending on your roast profile and workflow, which is typically enough to support multiple wholesale accounts or a high-volume retail counter.
Is a 12kg roaster the right size for my roastery?
+A 12kg roaster suits roasteries that have outgrown a small batch machine and need to keep pace with several standing wholesale accounts. If you're not sure yet, the medium batch size guide above the grid covers the full 5-18kg range for comparison.
What's included with a used 12kg roaster listing?
+Each listing documents what ships with the machine, which can include loaders, destoners, external cyclones, afterburners, and original manuals. Check the individual product page for the exact equipment included with that unit.
Can I finance a used 12kg coffee roaster through CoffeeTec?
+Yes, financing options are available for qualified buyers on equipment purchased through CoffeeTec, which can help manage cash flow while you secure the right roaster for your production goals.