Dough mixer SIGMA SAU-T-280HD

A spiral mixer that tilts its bowl to release dough automatically onto a worktop or into a divider, the SIGMA 420 L overturnable spiral mixer removes the need to lift or scrape heavy batches by hand. The spiral hook rotates inside the bowl, stretching and folding the dough to develop gluten evenly without overheating. This method gives a smooth, elastic texture that sheeting and dividing equipment can handle without tearing.

The operator loads flour, water and other ingredients into the bowl, closes the guard and selects the mixing programme. The spiral hook turns at a controlled speed while the bowl itself may rotate slowly to ensure every part of the dough is worked. Once mixing is complete, the bowl tilts forward on its sturdy frame, depositing the dough in a single mass. The operator can then transfer it directly to a divider or let it rest on a nearby table.

Built on a heavy-duty steel chassis, the mixer stands on adjustable feet to level it on uneven floors. The bowl and spiral hook are made of stainless steel for hygiene and durability. A clear safety guard covers the bowl during operation, and an interlock prevents the machine from running when the guard is open.

The control panel includes a start button, an emergency stop, and a timer that sets the mixing duration. A selector switch chooses between manual and automatic modes; in automatic mode the bowl tilts at the end of the cycle without further intervention.

An 11.75 kW motor draws power from a 400 V three-phase supply, suitable for industrial kitchens with high-capacity circuits. The 420 L bowl can hold up to 280 kg of dough, allowing large batches to be mixed in a single cycle. At 1700 kg, the unit is moved only with a pallet truck or forklift, and its footprint of 2300 mm by 1520 mm requires a dedicated space on the production floor. The height adjusts between 2150 mm and 3400 mm to clear overhead pipes or extractor hoods.

Cleaning involves removing the spiral hook for washing, wiping down the bowl and guard with food-safe sanitiser, and checking the tilt mechanism for smooth operation. The sturdy frame needs no regular lubrication, reducing maintenance time.

The SAU-T-280HD is part of SIGMA's SAU line, which includes overturnable spiral mixers for dough capacities from 120 kg to 280 kg. This model is placed in the professional bakery equipment catalogue under heavy-duty mixers for large-scale production.