Spiral Mixer vs Planetary Mixer: Which is right for your bakery?
Choosing between a spiral and a planetary
Picking the right commercial dough mixer is one of the biggest equipment calls a bakery will make.
Two mixers can look almost identical on the showroom floor and develop dough in completely different ways. A spiral mixer is built to do one job — bread and pizza dough — and it does it gently and consistently. A planetary mixer is the swiss-army knife of the kitchen, but it pays a price on heavy dough. The trick is knowing which trade-off fits your bakery.
It is important to choose the right mixer if you want consistent dough, day after day.
We supply the full range of commercial dough mixers for Australian bakeries and pizzerias — and the right one for you depends almost entirely on what you produce and how much of it. This guide breaks down how each mixer works, what they cost to run, and how to make the choice with confidence.
For the full mixer range, see our Bakery & Pizza Mixers, and our existing tips article on getting light and fluffy dough using a spiral mixer.
How a spiral mixer works
A spiral dough mixer has a spiral-shaped agitator rotating inside a bowl that also rotates. The dough hooks under the spiral and is gently stretched and folded — building gluten through repeated extension rather than brute force. The slow methodical action keeps dough temperatures low, which is why almost every serious bread bakery, pizzeria and high-hydration dough operation in Australia uses a spiral as its primary mixer. Capacities run from around 20 kg up to 100 kg plus for production bakeries. ABP Atlas stocks Rollmatic (BULL 60 / BULL 60P), IGF (2400, 3000), and LP (Lux, Lynx, VIS-R).
How a planetary mixer works
A planetary mixer uses a single attachment — hook, paddle or whisk — that spins on its own axis while orbiting around a stationary bowl. That motion makes it the most versatile machine in a commercial kitchen: swap a paddle for a hook to mix dough, swap to a whisk for cream or egg whites. Capacities run from 10 L benchtop up to 100–160 L floor units. ABP Atlas carries Bull Planetary Mixers (10 L–160 L) plus Atlas SH101, TS201 and LD40.
Side by side
The fundamental trade-off is specialisation vs versatility. A spiral does one job better than anything else. A planetary does many jobs, but isn't a spiral's equal on heavy dough. Spirals are gentler on dough temperature, handle higher hydration (65–70 %+) without bogging down, and produce uniform batches at volume. Planetaries win on tool versatility, smaller footprint per litre, and switching tasks quickly.
When to choose which
Choose a spiral mixer when bread or pizza is your core product, when you mix high-hydration doughs, when dough temperature control matters, and when you need consistency at scale. Choose a planetary mixer when you produce a wide range — cakes, fillings, pastries, creams alongside bread — when bench space is tight, or when versatility matters more than dough specialisation. In most production bakeries the answer is "both" — a spiral for bread and pizza, a planetary for everything else.
Total cost of ownership
Purchase price is only part of the story. Over a 10-year lifespan, spiral mixers draw less power per kilogram of dough produced, outlast planetaries that are pushed beyond their design intent, finish a 60 kg dough batch in 10–12 minutes, and retain strong resale value. For a bakery producing more than around 200 kg of bread or pizza dough per day, the running-cost difference alone usually justifies a spiral over a planetary running hard.
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