Spiral vs planetary mixer comes down to what you mix most. If your kitchen makes large batches of bread or pizza dough every day, a spiral mixer is built for that one job and does it gently. If you also whip cream, cream butter, beat batters, mash potatoes or run a slicer or grinder attachment, a planetary mixer is the more flexible choice. This guide explains how each works, how to read capacity ratings, and what our listings show.
How a spiral mixer works
A spiral mixer has a spiral shaped dough hook that turns in place while the bowl rotates underneath it. Because the bowl moves, the dough is pulled through the hook continuously instead of being pushed around by an orbiting tool. Hobart describes spiral mixing as gentler, with less fluctuation in dough temperature, which helps the yeast activate on schedule rather than too early. Hobart says its bidirectional bowls allow batches as small as 10% of maximum capacity.
The Univex Silverline models we carry list two speeds plus reverse, dual timers and separate bowl and hook motors. A spiral mixer does dough only: no whip, paddle or attachment hub.
Fixed bowl vs removable bowl spiral mixers
Fixed bowl models are unloaded by hand, with a bowl jog to help. Removable bowl models roll the bowl away on a dolly so the next batch can start. Overturnable models lift and tip the dough onto a bench or into a hopper. Each step up adds cost.
How a planetary mixer works
In a planetary mixer the bowl stays still and the agitator spins on its own axis while it travels around the bowl, like a planet orbiting the sun. One machine can knead with a hook, mix with a flat beater and whip with a wire whip. Most also have a front attachment hub (often #12) that drives accessories such as a grinder or slicer, sold separately.
Hobart lists egg whites, heavy bread dough, whipped cream and cookie dough among the jobs for its Legacy+ floor mixers, which come in 30 to 140 quart sizes with three or four speeds plus a stir speed.
Spiral vs planetary mixer: which fits your menu
- Choose a spiral mixer if most of your volume is bread, rolls, bagels or pizza dough, especially wetter, high hydration doughs, and you mix the same recipes in large batches every day.
- Choose a planetary mixer if your menu mixes dough with batters, icing, whipped toppings, mashed potatoes or meat mixtures, or if you want to run hub attachments.
- Consider both if dough volume is high and you also make desserts or sides.
Commercial dough mixer capacity and absorption ratio
Bowl size in quarts tells you volume, but the number that matters for a commercial dough mixer is how many pounds of dough it is rated to mix. That rating depends on the absorption ratio (AR). Hobart defines absorption ratio as the weight of wet ingredients divided by the weight of dry ingredients. Lower AR doughs are stiffer and harder on the machine, so the rated capacity drops. Hobart also says that using ice, or high gluten flour above 12% protein, reduces mixer capacity by 10%.
You can see the effect in Hobart’s published spiral mixer chart: its HSL130 is rated for 75 lb of flour and 130 lb of bread dough at 60% AR, but only 40 lb of flour and 60 lb of thin pizza dough at 40% AR. The Univex Silverline listings we carry rate capacity at a 60% absorption ratio and note that maximum capacity may be lower for tougher dough. If you make stiff pizza or bagel dough, size up.
Hobart notes that an oversized mixer will not mix a small recipe properly and an undersized one can shorten its life. Its absorption ratio and capacity calculator recommends a planetary model from your recipe, and a manufacturer rep should confirm any final choice.
Spiral and planetary mixers we carry
Listed prices at the time of writing. Specs come from each product listing; “Not listed” means the listing does not state it.
| Model | Type | Bowl | Rated dough capacity | Motor | Power | Listed price |
|---|---|---|---|---|---|---|
| Univex SL50 | Spiral, fixed bowl | 70 qt | 110 lb at 60% AR | 3.5 HP spiral, 0.75 HP bowl | 208 to 240V, 3 phase | $14,792.23 |
| Univex SL80 | Spiral, fixed bowl | 135 qt | 176 lb at 60% AR | 6 HP spiral, 0.75 HP bowl | 208 to 240V, 3 phase | $26,222.65 |
| Univex SL80RB | Spiral, removable bowl | 137 qt | 176 lb | 11 HP spiral, 1 HP bowl | 208 to 240V, 3 phase | $57,823.95 |
| Hobart HMM20-1STD | Planetary, countertop | 20 qt | Not listed | 1/2 HP | 100 to 120V, single phase | $4,214 |
| Univex SRM20+ | Planetary, countertop | 20 qt | Not listed | Not listed | Not listed | $5,587.06 |
| Hobart HL200-1 | Planetary, bench | 20 qt | Not listed | 1/2 HP | 100 to 120V, single phase | $7,561.40 |
| Hobart HL400-2STD | Planetary, floor | 40 qt | Not listed | 1.5 HP | 380 to 460V, 3 phase | $22,034.60 |
| Hobart HL600-1 | Planetary, floor | 60 qt | Not listed | 2.7 HP | Not listed | $26,194.70 |
The HMM20-1STD includes a whip, beater and dough hook; the HL200-1 has a #12 hub but ships without attachments; the HL400-2STD includes a beater, whip and spiral dough hook. Browse the full Univex lineup for overturnable spiral models and larger bowls.
Bakery mixer footprint and power
Space
Countertop planetary mixers up to 20 quarts sit on a sturdy bench. Larger planetary mixers and every spiral mixer in our table are floor units, and removable bowl models need room for the dolly. Measure doorways and the delivery path, and check spec sheet heights with the head or guard open.
Electrical
Power is often the deciding factor. The small Hobart planetary mixers above run on 100 to 120V single phase and come with a cord and plug. The Univex spiral mixers listed are 208 to 240V three phase, and the HL400-2STD is wired for 380 to 460V three phase. If you lack three phase service, ask about single phase options first. A licensed electrician and local code have the final word on installation.
Safety guards and cleaning
Both types use interlocked guards. Hobart’s spiral mixers have a stainless steel wire bowl guard with an interlock that stops the spiral arm when the guard is up. Its Legacy+ floor mixers will not run unless the bowl is up and locked and the guard is in place. The Univex Silverline listings mention safety switches that stop the mixer if the bowl lid is open. Unplug or lock out the machine before cleaning.
A planetary mixer has more parts to wash, though Hobart says the Legacy+ floor guard comes off without tools and is dishwasher safe. A spiral mixer has fewer parts, but a fixed bowl is cleaned in place. Follow the manual for approved cleaners.
If you are outfitting a pizza kitchen, pair this with our guide to conveyor vs deck ovens, and see combi vs convection ovens for the baking side. Our commercial kitchen equipment guide covers the rest of the line.
Frequently asked questions
Is a spiral or planetary mixer better for pizza dough?
For large daily batches of pizza dough, a spiral mixer is usually the better fit because it is built only for dough and mixes gently. A planetary mixer with a dough hook also makes pizza dough well and is the better buy if you need to mix other foods too.
What size commercial dough mixer do I need?
Start with your largest batch weight and your dough’s absorption ratio, then compare it to the manufacturer’s capacity chart. Leave headroom for stiff dough.
Can a bakery mixer of the spiral type whip cream or make batter?
Generally no. Spiral mixers have a fixed dough hook and no whip, paddle or attachment hub. Use a planetary mixer for batters, icing and whipped toppings.
Do commercial mixers need three phase power?
Not all. Many countertop planetary mixers run on 120V single phase, while the large spiral mixers we list need 208 to 240V three phase. Have a licensed electrician confirm your service.
Need help choosing?
Tell us your batch sizes, dough types and available power, and we will help you narrow it down. Call 866-777-2590, Monday to Friday, 9AM to 6PM PST. Orders of $999 or more ship free by freight, and you can review our return and refund policy before you buy.
