How to choose a planetary mixer for a bakery.

Step 1 — Size for the production day, not the batch

The most common sizing mistake is matching a planetary mixer to a single recipe. A bakery making 20 kg dough batches will look at a 40 L mixer (which technically holds the 20 kg) and stop the analysis there.

The right question is: how many batches per shift, and what does that mean for the mixer's effective duty cycle?

A 40 L mixer running 20 kg dough is operating at 90–95% of bowl capacity. Every cycle stresses the motor, the gearbox and the belts close to their design limits. Twelve cycles per shift means twelve near-limit operations every working day. Components that should last 15 years start needing service in three.

The right sizing rule of thumb: your normal batch should fill 55–70% of the bowl. That gives the planetary tool the headroom it needs to move material from the wall to the centre cleanly — which is exactly the geometry that makes planetary mixers worth the price in the first place.

Quick sizing reference

Typical batch	Recommended bowl	Dirmak IBT
5 kg dough / 5 L cream	10–20 L	IBT 12 / IBT 22
15 kg dough / 15 L cream	30–40 L	IBT 32 / IBT 42
20 kg dough / 20 L cream	60 L	IBT 64
35 kg dough / 30 L cream	80 L	IBT 80-VEL
50 kg dough / 60 L cream	140 L	IBT 140-VEL
80–100 kg dough / 120 L cream	200–300 L	IBT 200-VEL / IBT 300-VEL

Step 2 — Match motor duty to actual shift length

A planetary mixer's motor rating is one of those specs that's easy to skim and expensive to ignore. Two questions matter:

• Asynchronous or universal motor? Industrial-bakery duty needs an asynchronous (induction) motor. They're heavier, larger, and outlast universal motors by a factor of 3–5 in continuous service.
• What's the duty cycle classification? The Dirmak IBT industrial range (80 L–300 L) is specified for continuous shift operation — the rotor and stator are sized for full-day output without thermal derating.

Look for: full-load running for 8–10 hours a day without thermal cut-out, ambient operating temperature documented up to 40 °C, and IP-rated control electronics (Dirmak ships IP54 control, IP32 machine — washdown-friendly on the surfaces it contacts, not full submersion).

Step 3 — Pick the right speed control

Three-step (3-speed gear) mixers are mechanical, reliable, and adequate for dough-only operations. They run at three pre-set rotor speeds and that's it.

Variable-speed (VEL) mixers add an electronic variator: continuous rpm adjustment through the operating range, usually controlled via a touchscreen on industrial models. The argument for VEL becomes overwhelming the moment you mix anything other than dough:

• Aerated cream — too fast and you collapse the foam; too slow and you don't fully aerate. The sweet spot is usually a specific rpm window for a specific recipe.
• Pastry batter — the difference between a glossy, properly emulsified batter and a broken one is a 30-second window of correct rpm.
• Meringue, mousse, ganache — same logic. The recipe is the rpm curve, not just the ingredients.

If your output is purely dough today but you might expand into pastry or food production in the next 5 years, specify VEL on the original order. Retrofitting variable speed onto a 3-step mixer is rarely cost-effective.

Step 4 — Standard vs full-stainless (CR)

The CR (full-stainless) version is the same machine with an AISI 304 stainless steel body — frame, panels, and contact surfaces. The bowl and tools are AISI 304 on every model, painted or CR; the difference is the body around them.

You want CR when:

• You run any kind of daily washdown — water and detergent on the body, not just inside the bowl.
• You're in any hygiene-critical food production environment — cream, filling, dairy adjacent, meat adjacent.
• Your facility audits against EC 1935/2004 or stricter food-contact regimes.
• You expect to export the finished product and your importer specifies food-grade stainless construction.
• You're running in a high-humidity climate (coastal kitchens, tropical bakeries) where painted steel develops rust faster.

You don't need CR for a small artisan bakery doing dough-only production at ambient humidity. Standard (painted body, stainless bowl + tools) is fine and notably cheaper.

Dirmak offers CR across the entire IBT line — 10 L bench-top through 300 L industrial. That's deliberate: it lets a pastry shop with 20 L CR-grade hygiene specify the same engineering standard the 300 L food-manufacturing line uses.

Step 5 — Specify the accessories that will save you time

Standard equipment on a planetary mixer typically includes the bowl, the three tools (hook, paddle, whisk), and the motor. The accessories worth specifying during quotation:

• Leakproof bowl cover — eliminates splatter on cream and batter mixing. Becomes a hard requirement once flour dust is regulated in your jurisdiction.
• Discharge valve — bottom-discharge for liquid and semi-liquid products. Saves the operator from manually transferring 60 L of cream out of the bowl.
• Scraper — continuously sweeps the bowl wall during mixing. Critical for thick batters and for hygiene production (no manual bowl scraping with a spatula between batches).
• Touchscreen with recipe control — turns the mixer from a manual tool into a programmable one. The operator selects "vanilla cream batch B", the mixer ramps through the rpm curve, holds for the right duration at the right speed, and signals when it's done.
• Double tool — runs two tools simultaneously. Useful for very large bowls (IBT 300-DC CR has it standard) where a single tool would leave dead zones at the wall.

Step 6 — Document compliance up-front

If you're an industrial buyer in Europe — bakery chain, food manufacturer, project firm — your compliance team is going to ask for these documents. Ask the supplier to commit to them during quotation, not after delivery:

• CE Declaration of Conformity — every machine, every shipment.
• EN 454 — the specific bakery planetary mixer standard. Dirmak issues EN 454 for IBT models up to 200 L.
• EC 1935/2004 — food-contact compliance for stainless surfaces.
• EN 10204 3.1 material certificate — formal trace of the AISI 304 stainless used. Particularly important if you're audited against IFS / BRC.
• A.TR movement certificate — only applies to EU imports from Türkiye, but if you're importing from Türkiye, this is what gives you 0% customs duty under the EU–Türkiye Customs Union.

For the full document set, see our certifications and compliance page and the European delivery, warranty and spare parts guide.

Where Dirmak fits

The Dirmak IBT range was built around exactly this decision framework: one continuous engineering standard from a 10 L pastry-shop bench-top to a 300 L industrial flagship. Every model is available with the same accessories and the same full-stainless (CR) option, so a customer growing from a 60 L bakery operation to a 300 L industrial line doesn't have to re-learn a different machine — same controls, same maintenance regime, same spare-parts catalogue.

Browse the Industrial Mixers (80 L+) or Standard Series (10–60 L) to find a fit, or send us your daily output and we'll size it for you in the quote form.