Single Sigma Arm Mixer - Open Frame Hybrid Design

Single Sigma Arm Mixers

Shaffer® Single Sigma Arm Mixers are ideal for rotary moulded cookies, crackers, biscuits, corn tortillas, muffins, sweet doughs, granola bars, stiff fillings and pet foods. The mixer is available in open or enclosed frame designs and is engineered to meet your bakery’s specific needs.


Single Sigma Arm Mixers Resources

Usable Bowl Volume
Rated Bowl Volume
900 lb / 408 kg
25.2 cu ft / 714 L
20.6 cu ft / 583 L
1200 lb / 544 kg
28.3 cu ft / 801 L
23.2 cu ft / 656 L
1600 lb / 726 kg
36.3 cu ft / 1028 L
33.4 cu ft / 945 L
2100 lb / 953 kg
47.6 cu ft / 1348 L
43.7 cu ft / 1238 L
2400 lb / 1089 kg
53.1 cu ft / 1504 L
48.2 cu ft / 1365 L
2800 lb / 1270 kg
60.8 cu ft / 1722 L
55.2 cu ft / 1563 L
3400 lb / 1542 kg
79.9 cu ft / 2263 L
72.1 cu ft / 2042 L
3700 lb / 1678 kg
86.0 cu ft / 2435 L
77.8 cu ft / 2204 L
4000 lb / 1814 kg
91.7 cu ft / 2597 L
84.5 cu ft / 2391 L
4500 lb / 2041 kg
97.1 cu ft / 2750 L
89.4 cu ft / 2532 L
5000 lb / 2268 kg
112.6 cu ft / 3188 L
104.3 cu ft / 2953 L


Single Sigma Arm Mixer - Open Frame Hybrid Design

Custom Frame Designs

Enclosed frame, open frame and open frame hybrid designs available

Heavy Duty Stainless Steel Sigma Arm Agitator


Stainless Steel Product Zone

Bowl, agitator and canopy

Positive Pressure Side Bowl Seals

Constructed of food-grade material that forms against canopy to provide exceptional bowl sealing

Metal Detectable UHMW

Positive pressure front and rear bowl seals

Rotary Face Agitator Shaft Seals (U.S. Patent No. 10,174,842)


Hydraulic Bowl Tilt Systems

With jog and tilt using single or dual hydraulic cylinders for forward tilt up to 140º  or two-way tilt up to 140º forward and 95º reverse

Bowl Mounting Bearing

Bowl tilts on a laminate composite bearing

Watershed® Operator Panel Enclosure

Touch screen operator interface, PLC controls and push buttons with universal labels for frequently used functions*

Heavy Duty Stainless Steel Canopy

Butterfly gate with BFM® connector, liquid inlets and flour dust vent**

Grout Kit

Anchor bolts and grout for sanitary mixer installation

NEMA 4X End Doors

On hybrid and enclosed frame models

NEMA 4 Painted Starter Enclosure


UL, cUL Compliant Controls


BISSC Certified


ANSI, USDA and CE Compliant


*Watershed® is a registered trademark of Hoffman Enclosures, Inc.

**BFM® fitting is a registered trademark of BFM Global, Ltd.

Optional Features


Refrigeration Jacket


Sanitary Bowl Drain


Sliding Flour Gate


Ingredient Door in Canopy


NEMA 4X Stainless Steel Starter Enclosure


Custom Operator Interface and PLC Packages


Grace Port 120 VAC Outlet and Ethernet Port in Electrical Enclosure Door


Non-Contact Voltage Detector and Voltage Indicator in Electrical Enclosure Door

Load Cells


ARC Flash Protected Main Circuit Breaker


Trough or Kibbler Locks


Special Ingredient Inlets


CIP System

Quote Inquiry

Please complete the short form below to have a Shaffer representative email or call you. We want to provide the most accurate product quote possible.