SINGLE SIGMA ARM MIXER
Horizontal mixer for stiff
and sticky doughs
Powerful mixing for large dough batches
The Shaffer Single Arm Mixer is a powerful enclosed horizontal dough mixer suitable for preparing large batch of dough that requires exceptional blending.
The Shaffer Single Sigma Arm Mixer is ideal for challenging preparations such as:
- Rotary molded cookies, crackers, and biscuit dough mixing
- Corn tortilla, tostada, and masa dough mixing
- Muffin, cake, and streusel batter mixing
- Granola and health bar ingredient mixing
- Pet treat formulations mixing
- Pretzels, pasta, and scone dough mixing
- Overview
- Range
- Design Options
- Gallery
The Shaffer Single Sigma Arm Mixer is engineered to handle the toughest doughs and fillings in high-capacity food production environments. With its heavy-duty stainless steel sigma arm and customizable frame designs, this mixer delivers efficient, consistent results for rotary moulded cookies, crackers, biscuits, sweet doughs, granola bars, and more. Designed with reliability and cleanability in mind, it’s built to perform in bakeries where precision and durability matter most.
Built to handle high volumes with ease
Whether you’re producing stiff fillings or high-density doughs, the Single Sigma Arm Mixer offers exceptional capacity from 408 to 2,258 kg (900 to 5,000 pounds) thanks to its large bowl size. Its open design, accessible from the side, allows for easy loading and visibility throughout the mixing process, making it ideal for high-throughput environments and production line integration.
Engineered for food safety and hygiene
Food safety is at the core of the Sigma Arm Mixer design. The product zone features stainless steel throughout for superior cleanability. Additional optional sanitary features include metal-detectable and positive pressure bowl seals, rotary face agitator shaft Seals (U.S. Patent No. 10,174,842) and NEMA 4X water-tight enclosures where applicable.
Accessibility options and temperature control
When space is limited, the Single Sigma Arm Mixer can be configured with a reverse curve design to minimize its footprint without sacrificing performance. For dough applications requiring temperature control, optional cooling jackets help regulate dough temperatures during the mixing cycle, protecting dough quality even in heat-sensitive processes.
| Model | Capacity (kg / lb) | Usable Bowl Volume (L / cu ft) | Rated Bowl Volume (L / cu ft) |
|---|---|---|---|
| SA4 | 408 kg / 900 lb | 714 L / 25.2 cu ft | 583 L / 20.6 cu ft |
| SA5 | 544 kg / 1,200 lb | 801 L / 28.3 cu ft | 656 L / 23.2 cu ft |
| SA6 | 726 kg / 1,600 lb | 1,028 L / 36.3 cu ft | 945 L / 33.4 cu ft |
| SA7 | 953 kg / 2,100 lb | 1,348 L / 47.6 cu ft | 1,238 L / 43.7 cu ft |
| SA8 | 1,089 kg / 2,400 lb | 1,504 L / 53.1 cu ft | 1,365 L / 48.2 cu ft |
| SA9 | 1,270 kg / 2,800 lb | 1,722 L / 60.8 cu ft | 1,563 L / 55.2 cu ft |
| SA10 | 1,542 kg / 3,400 lb | 2,263 L / 79.9 cu ft | 2,042 L / 72.1 cu ft |
| SA11 | 1,678 kg / 3,700 lb | 2,435 L / 86.0 cu ft | 2,204 / 77.8 cu ft |
| SA12 | 1,814 kg / 4,000 lb | 2,597 L / 91.7 cu ft | 2,391 L / 84.5 cu ft |
| SA13 | 2,041 kg / 4,500 lb | 2,750 L / 97.1 cu ft | 2,532 L / 89.4 cu ft |
| SA14 | 2,268 kg / 5,000 lb | 3,188 L / 112.6 cu ft | 2,953 L / 104.3 cu ft |
Optional features
- Refrigeration jacket
- Custom canopy inlet configuration
- Custom electrical, operator interface and PLC packages
- Load cells
- Dough Trough or kibbler integration
- Clean-In-Place system
Frame options
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brochure
To learn more about the Single Sigma Arm Mixer by Shaffer, please download our PDF documentation.
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