Single Sigma Arm Mixers
The Shaffer® Single Sigma Arm Mixers deliver powerful, precision mixing for producers handling stiff or sticky doughs that require exceptional blending. This specialized mixer provides thorough, even mixing, ideal for challenging dough types like those used in cookies, crackers, biscuits, and pet treats, ensuring consistent, high-quality results with every batch.
With an optional reverse tilt on the bowl, the Single Sigma Arm Mixer makes cleaning efficient, even in tight spaces where front access is limited by additional equipment like dough feeders and conveyors.
The Shaffer® Single Sigma Arm Mixer is ideal for:
- 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
- Frame Type Options
- Agitator Type
- Batch Capacity
Single Sigma Arm Mixers
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Why Choose the Shaffer® Single Sigma Arm Mixer?
Engineered to handle the demands of modern bakeries, the Shaffer Single Sigma is a reliable choice for producers seeking robust, precise mixing performance tailored to stiff and sticky dough applications. With features like reverse tilt for easy cleaning and seamless integration into production lines, it’s engineered to maximize efficiency and reduce downtime.
Highlights
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Custom Frame with Enclosed, or Open Frame design
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Sanitary, stainless Steel construction
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Hydraulic Bowl Tilt for forward or two-way tilt
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Touch screen operator interface, PLC controls and push buttons with universal labels
Additional Features
- Metal Detectable, Positive Pressure Bowl Seals
- NEMA 4X water-tight enclosures where applicable
- Rotary Face Agitator Shaft Seals (U.S. Patent No. 10,174,842)
- UL, cUL Compliant Controls
- BISSC Certified
- ANSI, USDA and CE Compliant
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
Shaffer Featured in a Biscuit & Cracker Bakery 
Shaffer Single Sigma-Arm Mixer Model Numbers
| Model | Capacity | Usable Bowl Volume | Rated Bowl Volume |
|---|---|---|---|
| SA4 | 900 lb / 408 kg | 25.2 cu ft / 714 L | 20.6 cu ft / 583 L |
| SA5 | 1,200 lb / 544 kg | 28.3 cu ft / 801 L | 23.2 cu ft / 656 L |
| SA6 | 1,600 lb / 726 kg | 36.3 cu ft / 1,028 L | 33.4 cu ft / 945 L |
| SA7 | 2,100 lb / 953 kg | 47.6 cu ft / 1,348 L | 43.7 cu ft / 1,238 L |
| SA8 | 2,400 lb / 1,089 kg | 53.1 cu ft / 1,504 L | 48.2 cu ft / 1,365 L |
| SA9 | 2,800 lb / 1,270 kg | 60.8 cu ft / 1,722 L | 55.2 cu ft / 1,563 L |
| SA10 | 3,400 lb / 1,542 kg | 79.9 cu ft / 2,263 L | 72.1 cu ft / 2,042 L |
| SA11 | 3,700 lb / 1,678 kg | 86.0 cu ft / 2,435 L | 77.8 cu ft / 2,204 L |
| SA12 | 4,000 lb / 1,814 kg | 91.7 cu ft / 2,597 L | 84.5 cu ft / 2,391 L |
| SA13 | 4,500 lb / 2,041 kg | 97.1 cu ft / 2,750 L | 89.4 cu ft / 2,532 L |
| SA14 | 5,000 lb / 2,268 kg | 112.6 cu ft / 3,188 L | 104.3 cu ft / 2,953 L |
Why Choose Shaffer?
With customization options and expert support, Shaffer® mixers are built to optimize production, enhance dough quality, and meet the exact needs of any industrial bakery.
- Tailored Design for Every Recipe: Shaffer’s engineers collaborate with customers to tailor each mixer’s size, speed, cooling options, agitator type, and controls to their unique recipes. Our team can test your dough in our labs or visit your facility to determine the optimal bowl size, agitator rpm, and cooling requirements. Mixer controls can be integrated with ingredient systems for seamless operation.
- Enhanced Sanitation, Safety, and Operation Options: Available options include a sanitary bowl drain, NEMA 4X stainless steel starter enclosure, non-contact voltage detector and indicator, ARC flash-protected main circuit breaker, and integration with dough feeders like pumps, chunkers, and kibblers. Clean-in-place (CIP) systems are also available for enhanced sanitation.
- User-Friendly Features for Accessibility: Customizable operator interfaces and PLC packages make operation easy and efficient, with additional options for bowl access, such as reverse tilt, ingredient doors in the canopy, load cells, and specialized ingredient inlets.
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