Single Sigma Arm Mixer

The Shaffer® Single Sigma Arm Mixer is ideal for rotary moulded cookies, crackers, biscuits, corn tortillas, muffins, sweet doughs, granola bars, stiff fillings, and pet foods.


Heavy duty enclosed frame and stainless steel enclosures with water tight end doors

Single end belt drive system with variable speed motor


Open frame design provides easy access or sanitation and routine maintenance

Hybrid frame mixer features water tight end doors

Variable speed, energy efficient direct drive system eliminates belts and chains reducing the number of required maintenance and lubrication points

Keyless compression rit mounting system for direct drive

SA4900 lb.
408 kg
20.6 ft3
583 L
SA51,200 lb.
544 kg
23.18 ft3
656 L
SA61,600 lb.
726 kg.
33.38 ft3
945 L
SA72,100 lb.
953 kg
43.72 ft3
1,238 L
SA82,400 lb.
1,089 kg
47.9 ft3
1,358 L
SA92,800 lb.
1,270 kg
55.21 ft3
1,563 L
SA103,400 lb.
1,542 kg
72.11 ft3
2,042 L
SA113,700 lb.
1,678 kg
77.83 ft3
2,204 L
SA124,000 lb.
1,814 kg
88.9 ft3
2,518 L
SA134,500 lb.
2,041 kg
94.13 ft3
2,665 L
SA145,000 lb.
2,268 kg
109.8 ft3
3,109 L


  • Heavy duty stainless steel sigma arm agitator
  • Stainless steel product zone including 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 up to 120° forward with jog and tilt using single hydraulic cylinder

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

  • Bowl mounting bearing constructed of laminate composite material
  • Heavy duty stainless steel canopy with butterfly gate, liquid inlets and flour dust vent
  • Watershed® operator panel enclosure with touch screen operator interface, PLC controls and push buttons with universal labels for frequently used functions*
  • NEMA 4 painted starter enclosure
  • UL, cUL compliant controls
  • BISSC certified
  • ANSI, USDA and CE compliant


  • Double end drive (enclosed frame only)
  • Refrigeration jacket
  • Bowl end cooling
  • Sanitary bowl drain
  • Over tilt and two-way tilt operation
  • Sliding flour gate in lieu of butterfly valve
  • BFM® flour gate adapter and dust vent*
  • Ingredient door in canopy

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

  • Lip seal style agitator shaft seals
  • Custom operator interface and PLC packages
  • Grout kit for sanitary mixer installation
  • NEMA 4 X stainless steel starter enclosure
  • Grace port 120 VAC outlet and Ethernet port in electrical enclosure door
  • Non-contact voltage detector and voltage indicator in electrical enclosure door
  • Main circuit breaker arc flash box

Have Questions or Need a Quotation?

Call us at (800) 652-2151 or email


Additional Horizontal Mixers:

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