One Mixer, Many Products
The CMC America Single Sigma is built for plants that need one dependable mixer for many products. Its sigma agitator moves the dough from each end of the bowl to the center and back again in a continuous mixing action, with a minimum of heat rise. The result is an even mix of every ingredient.
All CMC America mixers are USDA accepted, meet OSHA and ANSI standards, and can be manufactured to be FDA and CE conformant when required. We build them in Joliet, Illinois.
Download the brochure (PDF)
Superior by Design
Solid stainless steel agitators, heavy-duty gearboxes and industrial-grade components, built for decades of reliable service. The agitator mixes ingredients thoroughly while keeping heat rise to a minimum.
Cookies to Hearth Breads
Single sigma mixers work for biscuit and cracker doughs as well as yeast-raised hearth breads, so one mixer can handle many of your products.
Tailored to You
Specialized agitation, temperature control, automation or unusual capacities: we design each mixer around your products, production goals and plant. Thru-shafts are available.
Single Sigma Mixer Sizes
| Model | Batch size (lb) | Batch size (kg) |
|---|---|---|
| 2SS | 600 | 270 |
| 3SS | 800 | 360 |
| 4SS | 1,000 | 450 |
| 5SS | 1,300 | 590 |
| 6SS | 1,800 | 815 |
| 7SS | 2,100 | 950 |
| 8SS | 2,400 | 1,090 |
| 9SS | 2,800 | 1,270 |
| 10SS | 3,400 | 1,545 |
| 12SS | 4,000 | 1,815 |
| 15SS | 5,200 | 2,360 |
| 18SS | 6,000 | 2,720 |
| 20SS | 7,200 | 3,265 |
The right size depends on your dough, its absorption and how many batches you need per hour. Send us your formula and output, and we’ll recommend a model.
What Single Sigma Mixers Make
Our customers use single sigma mixers for:
- Rotary-molded cookies and biscuits
- Crackers
- Pretzels
- Pie dough
- Cheesecake
- Corn tortillas
- Health food bars
- Batters and muffins
- Fillings
- Hearth breads
Not sure which mixer fits your product? Tell us what you make and we’ll recommend one.
See a Sigma Mixer at Work
Watch our sigma mixer run, or open the brochure for details you can download and print.
Open the Single Sigma Brochure
On Display at IBIE 2025
A CMC America 8SS single sigma mixer at IBIE, the International Baking Industry Exposition, in 2025. The 8SS mixes batches of up to 2,400 lb.
Single sigma agitator
Single Sigma Mixer Options
Every mixer is built to order. Single sigma options include:
- Flour gate
- Bowl jacketing
- Product temperature probe
- Cart corral
- PLC and VFD controls
- Water meter
- Flour hydrator
- Safety scanners
- Batch Quality Control (BQC), which records each batch’s temperature and power curve
Built with industrial-grade components, including Gates belt drives, Parker hydraulics and Rulon shaft seals.
Single Sigma Mixer Questions
Single sigma or double sigma: which do I need?
It depends on your product and batch size. Our single sigma handles a wide range of doughs, from cookies and crackers to hearth breads. Our double sigma is built for high-capacity batches of products like granola, bars and pretzel dough. Tell us what you make and how much, and we’ll recommend one.
What size single sigma mixer do I need?
Sizes run from the 2SS (600 lb batch) to the 20SS (7,200 lb batch). The right size depends on your formula and hourly output. Send us those details and we’ll recommend a model.
Can the mixer feed our line?
Yes. We build dough feeders and transport systems that take dough from the mixer to your extruder, depositor or next process. See our transport systems.
What warranty comes with a new mixer?
New CMC equipment comes with a written warranty. Coverage depends on the part, so please see our Warranty and Terms (PDF).
Do you have used single sigma mixers?
Sometimes. Our used inventory changes often. See our used mixers, or call 815-726-4336 to ask what’s available.
Other CMC Mixers
Get a Single Sigma Mixer Quote
Call +1-815-726-4336, or tell us your product and batch size and we’ll recommend a model.