Our take
The Robot Coupe R 301 B Ultra is a commercial cutter-mixer built around a 3.5-quart stainless cutter bowl and bowl-base twin blade. The U.S. maker page documents 120-volt single-phase power, 1.5 horsepower, pulse and 1725 rpm. It is a very different proposition from a household feed-tube processor: the page describes bowl-based chopping, mincing, grinding and kneading, not an included slice/shred disc system.
A professional kitchen or high-volume prep setting that needs a 120-volt cutter bowl and understands its commercial footprint..
Skip it if you want a quiet, compact home processor with slicing and shredding discs, or if you cannot support the commercial bowl, power base and footprint.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Robot Coupe publishes a 3.5-quart/3.7-liter stainless cutter bowl and a bowl-base twin blade.
- The maker lists a 1.5-horsepower induction motor, single-phase 120 volts, 1725 rpm and pulse.
- The product page describes both large- and small-quantity processing in the cutter bowl.
What to weigh up
- The documented R 301 B Ultra does not list a feed tube or slicing/shredding discs.
- Its 3.5-quart figure is a commercial cutter-bowl volume, not a household recipe working limit.
- The historical Amazon ASIN and exact seller package are not verified by the maker page.
The key details
| Model covered | R 301 B Ultra |
|---|---|
| Main bowl capacity | 3.5-quart / 3.7-liter stainless cutter bowl |
| Small-batch bowl | One cutter bowl; twin blade handles large and small quantities |
| Slicing and shredding | No feed-through slice/shred discs listed |
| Special attachment | Smooth bowl-base twin blade; optional serrated blades are separate accessories |
| Dough blade | Maker describes kneading with the smooth blade; no dedicated dough blade |
Performance figures are manufacturer claims. Source checked October 4, 2026. Regional models and included accessories can differ.
What the features mean for you
A commercial cutter bowl, not a household feed-tube setup
Robot Coupe categorizes the R 301 B Ultra among table-top cutter mixers and lists a 3.5-quart/3.7-liter stainless cutter bowl. In the shared comparison, 3.5 U.S. quarts converts to 14 U.S. cups of nominal vessel volume; that conversion does not establish usable working capacity for a particular recipe. The product page describes a bowl-base twin blade for large and small quantities. There is no feed tube in the documented configuration, so shoppers should not compare its bowl as if it were a domestic model that slices whole vegetables through a chute. The capacity is useful as a scale marker, while the commercial format remains the more important distinction. [bowlCapacityCups]
The twin blade is designed for cutter-mixer jobs
The maker describes sauces, minced meat and fish, chopped onions, herbs, spices, ground nuts, chocolate, praline and kneading as bowl-based tasks. The bowl-base twin blade is a different tool from a reversible slicing or shredding disc. This explains why the R 301 B Ultra can process ingredients in a cutter bowl without qualifying as a feed-through slicer in the matching profile. The product page also lists smooth stainless blades as included and coarse and fine serrated blades as separate accessories. Do not imply those optional accessories are part of the default package. The historical Amazon title's ETL-sanitation wording is not verified on this source page. [sliceShred, doughBlade]
Power and control are specifically documented
Robot Coupe's comparison table lists a 1.5-horsepower induction motor, single-phase 120-volt power, 1725 revolutions per minute and pulse for the R 301 B Ultra. That gives a professional shopper a firm electrical and motor reference rather than relying on a historical marketplace title. The maker calls it heavy-duty commercial equipment, but a product page is not an independent durability test, so this review does not repeat a guarantee of service life. Buyers should verify the exact motor model, required electrical connection and local installation expectations with the official documentation and seller before bringing the machine into a kitchen. [bowlCapacityCups]
It can handle different quantities without a second bowl
Robot Coupe says the bowl-base twin blade can process both large and small quantities. That is a claim about the blade arrangement in one cutter bowl, not evidence of a separate mini bowl. The matcher therefore records one work vessel and does not treat the twin blade as a second container. The clear polycarbonate lid is described as allowing the operator to monitor food and add ingredients during processing, and the page says the lid is dishwasher safe. These details may matter in a professional workflow, but they do not establish cleaning speed, operator comfort or safety outcomes in a particular kitchen. [smallBowl]
Match it to a professional job and exact destination
The R 301 B Ultra suits a buyer whose priority is a commercial cutter bowl with 120-volt power and documented chopping, mincing, grinding and kneading tasks. It is a poor substitute for a household processor whose defining need is adjustable slicing or shredding. Robot Coupe's exact U.S. page establishes the model but does not crosswalk the frozen Amazon ASIN or certify a current seller package. The linked destination is a tagged exact-model search. Confirm the R 301 B Ultra code, smooth-blade package and electrical details from the seller before ordering. The review makes no claim about current stock, price, buyer ratings or tested performance. [sliceShred, doughBlade]
What else to compare
For a household disc-driven processor with a large bowl and kneading blade compare CASO 13621; for a 12-cup immersion-blender combo compare Wolfgang Puck 649-012 with its package limitations.
Before you buy
Does the R 301 B Ultra include a slicing and shredding disc set?
No such disc set is listed on the exact U.S. maker page; its documented configuration centers on a bowl-base cutter blade.
What is the stated bowl volume?
Robot Coupe lists 3.5 U.S. quarts or 3.7 liters; the shared selector converts 3.5 quarts to 14 nominal U.S. cups.
What electrical setup does the maker document?
Robot Coupe's comparison table specifies a 1.5-horsepower motor and single-phase 120-volt configuration for the R 301 B Ultra.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Robot Coupe USA R 301 B Ultra product page ↗ — checked October 4, 2026.
- Robot Coupe USA R 301 B Ultra product page ↗ — checked October 4, 2026.
The decision
Choose the R 301 B Ultra for a documented commercial cutter-mixer workflow, not as a stand-in for a feed-tube slicer or household processor.
Is it the right fit?
Check the exact model and today’s offers on Amazon.