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.

900 lb / 408 kg
20.4 ft / 577 L
1,100 lb / 499 kg
24.2 ft / 685 L
1,500 lb / 680 kg
32.6 ft / 923 L
1,800 lb / 816 kg
39.1 ft / 1,107 L
2,100 lb / 953 kg
47.8 ft / 1,353 L
2,400 lb / 1,089 kg
53.3 ft / 1,509 L
2,700 lb / 1,225 kg
61.0 ft / 1,727 L
3,300 lb / 1,497 kg
72.6 ft / 2,055 L
4,000 lb / 1,996 kg
94.9 ft / 2,688 L
5,400 lb / 2,449 kg
122.0 ft / 3,455 L


Shaffer Double Sigma Mixer

Enclosed Frame Design

Features a single end belt drive system and water tight enclosures for the drive and hydraulic systems

Open Frame Design

Features our energy efficient direct drive system and either a frame-mounted remote-mounted or water tight enclosed hydraulic tilt system

Two Heavy Duty Stainless Steel Sigma Arm Agitators

Available in standard double sweep, W-style double sweep or Triple Sweep agitator (patent pending) 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

(Patent Pending)

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

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

Bowl Mounting Bearing

Bowl tilts on a laminate composite bearing

Heavy Duty Stainless Steel Canopy

Butterfly gate, 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 4 Painted Starter Enclosure

UL, cUL Compliant Controls

BISSC Certified

ANSI, USDA, and CE Compliant

Optional Features

Operation: Over tilt and tow-way tilt operation

Drainage: Sanitary bowl drain

Refrigeration: Refrigeration jacket

Flour Gate: Sliding flour gate in lieu of butterfly valve

Flour Gate Adapter: BFM® flour gate adapter and dust vent**

Ingredient Door: Ingredient door in canopy

Agitator Shaft Seals: Lip seal style agitator shaft seals

ARC Flash Box: Main circuit breaker ARC flash box


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

Custom Interface & PLC: Custom operator interface and PLC packages

Enclosure: NEMA 4 X stainless steel starter enclosure

Ports: Grace port 120 VAC outlet and Ethernet port in electrical enclosure door

Voltage: Non-contact voltage detector and voltage indicator in electrical enclosure door