Launch or Scale Your Roastery Quickly
Transition to professional-grade roasting equipment with our turnkey 12kg infrared system. From automated loading to precision weigh-filling, get everything you need to dominate the local market—ready to go today.
The Diedrich Advantage
This 2006 IR-12 comes from the Golden Era of Diedrich manufacturing — built with heavy-gauge carbon steel and industrial-grade iron designed to last 50 years. Unlike traditional blue-flame atmospheric burners, Diedrich's patented Infrared Burner Technology uses radiant energy for a fundamentally different roast.
Thermal Stability
Radiant heat penetrates the bean evenly, reducing exterior scorching while ensuring core development. Heat from the inside out.
Cleaner Profiles
Lower NOx and CO emissions deliver a cup free from the metallic or gas taints common in older burner designs.
Precision Repeatability
Industrial-grade airflow and thermal mass let you hit delicate Third Wave acidity and sweetness markers with total consistency.
Natural Gas or Propane — Your Choice
This IR-12 is configured for natural gas and includes a factory orifice changeover kit for propane conversion. Whether your facility runs on natural gas or your operation requires portable propane supply, this machine adapts to your infrastructure — no additional parts to source, no technician required for the swap.
Diedrich IR 12 manual included
Data-Driven Consistency
Consistency is the difference between a hobby and a business. This system features Level 1 Automation controlled via a ruggedized 10-inch touchscreen PLC — not a fragile tablet, but a machine-floor-grade industrial controller.
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Profile Recording
Record your master roast profile once. The system replicates every burner and airflow adjustment automatically on every subsequent batch.
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Up to 40 Saved Profiles
Switch between origins, roast levels, and batch sizes in seconds. Full ramp curves stored and displayed graphically.
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Hands-Free Productivity & Precision
Unlock a massive efficiency boost by allowing the automation to manage burner and airflow adjustments while you focus on labeling, bagging, or prepping the next batch. The system's intelligent curve-following logic ensures consistent results even when you change batch sizes — for example, it will accurately scale a 20 lb Colombian profile down to a 10 lb batch by constantly sampling bean temperature and adjusting in real-time. Plus, a persistent audible end-of-cycle alarm means you'll never lose track of a roast, ensuring every batch is pulled at its peak.
The industrial PLC was built for production floor rigors — not the consumer-grade components found in newer machines at twice the price.
Fuel: Natural gas (standard) · Propane-ready via included orifice kit
More Than a Roaster — A Mini-Production Suite
Purchasing a roaster is only half the battle. This package includes every piece of ancillary equipment that transforms a one-person operation into a high-throughput production house. One shipment. One setup. One complete production line.
Model 12 Pneumatic Loader
Stop lifting 60kg bags. This loader stages your next batch while you roast, increasing hourly throughput and protecting your body from repetitive strain.
Integrated De-stoner
Protect your grinders and your reputation. This fluid-bed separation system removes stones and debris instantly, color-matched and perfectly sized for the IR-12 cooling tray.
Precision Weigh-Fill Machine
Automate your retail packaging at 300–500% the speed of hand-weighing. Every bag legal-weight. Every bag professional.
Halogen Trier Lamp
Assess your roast in real time. The integrated halogen trier lamp illuminates the bean tester — the sample spoon used to pull live beans from the drum — so the roastmaster can judge color, surface texture, and roast development accurately mid-batch. No guesswork. No walking to a window. Precision where it counts.
From Roaster to Retail — In Minutes
Most roasters spend 30–40% of their labor hours on packaging. This industrial Weigh-Fill machine eliminates that bottleneck entirely — automating the weighing, filling, and portioning process at speeds no manual operation can match.
300–500% Faster Than Hand-Weighing
What takes a person an hour takes this machine minutes. At production scale, that time compounds into thousands of dollars of recovered labor annually.
Legal-Weight Accuracy
Every bag hits your target weight within tight tolerances — protecting you from short-weight complaints, regulatory issues, and customer dissatisfaction.
Scales With Your Business
Whether you're filling 100 bags a week or 1,000, the machine sets the pace. Add staff to seal and label; the bottleneck is gone.
Fully Integrated Bean Transfer
Once a roast cycle completes, beans don't need to be manually scooped, carried, or poured. The cooling tray feeds directly into the integrated de-stoner, which vacuum-transfers the finished roasted beans pneumatically into the weigh-fill hopper above the packager. The entire post-roast flow — cooling, destoning, and filling — is a single connected process. One operator can run the roaster and keep the packager fed simultaneously, with no lifting, no spillage, and no interruption to the next batch cycle.
Included in the complete suite. This unit alone retails for $8,000–$12,000 new — it is part of your $35,000 package.
'Works Great' — Professionally Maintained
This is not a project machine found in a dusty warehouse. The IR-12 suite has been professionally maintained and has spent the last two years in climate-controlled storage — protected from humidity, temperature swings, and dust. Bearings are smooth. Motors are responsive. Burners fire clean. It is ready to be commissioned and producing revenue-generating roasts within days of delivery.
Custom Selkirk Double-Wall Insulated Venting — Included
Commercial roaster venting is one of the most expensive and logistically complex parts of any roastery build-out. This system comes with a complete, custom-fabricated Selkirk double-wall insulated exhaust stack — the industry standard for safe, code-compliant roaster ventilation. The existing installation is sized to penetrate ceilings of 14 feet or more depending on roof pitch, meaning a buyer with a suitable space can connect and commission this system without sourcing, fabricating, or installing new venting from scratch.
Selkirk venting of this specification typically costs $3,000–$6,000 in materials alone — it is included in your package price.
Two years in climate-controlled storage means this machine is in exceptional preserved condition — not worn down by daily production cycles. The complete Selkirk venting package transfers with the system, eliminating one of the largest infrastructure costs in any roastery installation. Given the complete-system nature of this listing, we expect significant interest. Serious inquiries only, please.
Why This. Why Now.
- $120,000+ total investment
- 10-month lead time before first roast
- Depreciation begins immediately
- Ancillary equipment sold separately
- No revenue for nearly a year
- $35,000 complete package
- Zero lead time — start roasting next week
- Proven 50-year build quality retains value
- Loader, De-stoner, Weigh-Fill included
- Revenue from day one
- Runs on natural gas or propane (changeover kit included)
Zero Lead Time
Start roasting and generating revenue next week, not next year.
Turnkey Efficiency
One shipment, one setup, one complete production line.
Retained Value
Diedrich machines are famous for price stability. Roast on this for five years and likely sell it for exactly what you paid today.
One System. One Opportunity.
We are offering this entire 2006 integrated suite at $35,000. This listing will not last.
Inquire Now →Return on Investment
What This Machine Can Generate
The following analysis is based on standard specialty coffee production parameters for a 12kg drum roaster operating at normal efficiency. These are theoretical gross profit figures — your actual results will vary based on sales channel mix, green coffee sourcing, and operational costs. They are presented here to illustrate the earning capacity of this class of equipment.
▸ How we calculated the cost per 12oz bag
| Green coffee (raw) | $5.00/lb |
| Shrinkage loss (20%) | Requires 0.94 lbs green per bag |
| Green cost/12oz bag | $4.69 |
| Packaging | $1.15 |
| Labor, gas, maint. | $1.48 |
| Total COGS/bag | $7.32 |
| Timeframe | Gross Profit |
|---|---|
| Daily | $5,468 |
| Weekly | $27,340 |
| Monthly | $120,296 |
| Yearly | $1,443,552 |
Gross profit only — does not include fixed overhead. Based on 20 lb batches, 20% roast shrinkage, 8-hr/day, 5-day/wk operation. Green coffee at $5.00/lb requires 0.94 lbs green per 12 oz bag after shrinkage loss. Total COGS: $7.32/bag.
A Realistic Path to Payback
Building a specialty coffee customer base takes time. The following models a realistic sales ramp based on typical roastery growth patterns — accounting for the time required to build wholesale accounts, grow DTC subscribers, and establish brand presence in your market.
Getting licensed, dialing in roast profiles, launching your website, landing your first 3–5 wholesale accounts. The roaster runs 1–2 days/week.
Wholesale reorders beginning. DTC subscription base growing. Word of mouth building. Roaster running 3–4 days/week. Weigh-Fill machine paying for itself in recovered labor hours.
Established route accounts, consistent DTC volume, potential café partnerships. Roaster running 5 days/week. Second shift becoming a realistic conversation.
Payback estimates compare gross profit to the $35,000 purchase price only. Real-world payback will be longer once fixed overhead (facility, insurance, staffing, marketing) is deducted from gross profit. These figures are illustrative. Your results will depend entirely on how quickly you build your customer base.
The Strategic Sweet Spot: Most roasteries run a 70% wholesale / 30% DTC split — keeping the roaster at high utilization while capturing premium retail margins where possible. At that blend and a realistic 60% utilization rate as you move into your second operating year, this machine generates roughly $28,000–$38,000 gross profit per month — a strong foundation to cover overhead, service any debt on the purchase, and begin accumulating real profit.
If you've been working with smaller equipment — or have always loved the idea of owning and operating your own coffee roasting company — this is a rare opportunity to get started the right way. You'll hit the ground running with a complete, professional-grade setup that has the throughput to grow with your business for years before you'll ever need to consider stepping up to a higher-capacity roaster. The hard part — sourcing the equipment, matching the components, commissioning the suite — is already done. All that's left is putting your name on it.
Ready to take the next step? Get in touch and let's talk. →
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What's Included
- 2006 Diedrich IR-12 Roaster (12 kg capacity)
- Natural Gas / Propane Orifice Changeover Kit
- Level 1 Automation & 10" Touchscreen PLC
- Diedrich Model 12 Pneumatic Loader
- Diedrich Color-Matched De-stoner
- Industrial Precision Weigh-Fill Machine
- Integrated Halogen Trier Lamp
- Original Manuals & Maintenance Logs
- Custom Selkirk Double-Wall Insulated Exhaust Venting
Centrally Located in Lincoln, Nebraska
Freight coordination available.
Serious inquiries only.