Double Sigma Arm Mixer with Triple Sweep Agitator - Open Frame Hybrid Design

Double Sigma Arm Mixers

Shaffer® Double Sigma Arm Mixers are ideal for wire cut cookies, granola and health bars, muffin batters, pretzels, cream fillings, icings and confectionery creams. The mixer is available in open or enclosed frame designs and is engineered to meet your bakery’s specific needs.


Mixer Models  Variable speed agitator to 80 rpm standard

Usable Bowl Volume
Rated Bowl Volume
900 lb / 408 kg
20.4 cu ft / 577 L
17.3 cu ft / 490 L
1100 lb / 499 kg
24.2 cu ft / 685 L
20.6 cu ft / 582 L
1500 lb / 680 kg
32.6 cu ft / 923 L
29.9 cu ft / 847 L
1800 lb / 816 kg
39.1 cu ft / 1107 L
35.9 cu ft / 1016 L
2100 lb / 953 kg
47.8 cu ft / 1353 L
38.9 cu ft / 1101 L
2400 lb / 1089 kg
53.3 cu ft / 1509 L
43.4 cu ft / 1228 L
2700 lb / 1225 kg
61.0 cu ft / 1727 L
51.9 cu ft / 1469 L
3300 lb / 1497 kg
72.6 cu ft / 2055 L
61.7 cu ft / 1748 L
4000 lb / 1996 kg
94.9 cu ft / 2688 L
88.6 cu ft / 2509 L
5400 lb / 2449 kg
122.0 cu ft / 3455 L
106.7 cu ft / 3020 L


Double Sigma Arm Mixer – Open Frame Design

Custom Frame Designs

Enclosed frame, open frame and open frame hybrid designs available

Two Heavy Duty Stainless Steel Sigma Arm Agitators

Available in standard double sweep, W-style double sweep or Triple Sweep agitator (U.S. Patent No. 10,034,479) to meet your exact product needs

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 140° or two-way tilt up to 140° forward and 95° reverse


Bowl Mounting Bearing

Bowl tilts on a laminate composite bearing

Heavy Duty Stainless Steel Canopy

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

Watershed® Operator Panel Enclosure

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

Grout Kit

Anchor bolts and grout for sanitary mixer installation

NEMA 4X End Doors


NEMA 4 Painted Starter Enclosure


UL, cUL Compliant Controls


BISSC Certified


ANSI, USDA and CE Compliant


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

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

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 Enclsoure 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

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