Generate the signal
The generator converts the incoming electrical supply into a controlled high-frequency electrical signal.
Ultrasonic food cutting technology
How Ultrasonic Cutting Works
A practical guide to the generator, transducer, titanium blade and controlled motion that help portion suitable foods with clean, repeatable results.
Application-led engineeringRecipe-controlled motionProduct testing recommended
From electrical energy to a controlled cut
An ultrasonic cutting system combines high-frequency vibration with controlled machine motion. The exact configuration is selected for the product, portion geometry and production requirement.
Create vibration
A transducer converts that electrical signal into high-frequency mechanical vibration.
Tune the system
A booster and the complete acoustic stack are matched so vibration transfers efficiently to the cutting tool.
Drive the blade
The titanium sonotrode—the cutting blade—vibrates with microscopic movement while the motion system follows the programmed path.
Separate the product
For suitable products, vibration can reduce adhesion and deformation, supporting a cleaner, more repeatable portion.
SYSTEM ANATOMY
The acoustic system is only one part of the machine
Reliable cutting depends on the ultrasonic stack, motion control, product support, recipes and safety system working together. NTM selects the configuration around the real application—not frequency alone.
20–40 kHz: Typical food-cutting systems may use frequencies such as 20, 30, 35 or 40 kHz. The correct frequency, amplitude, blade geometry and motion profile depend on the product and machine design. A higher number is not automatically a better cut.
Ultrasonic generator
Controls and monitors the high-frequency electrical energy supplied to the acoustic system.
Transducer / converter
Changes the electrical signal into mechanical vibration.
Booster and sonotrode
Transfer the vibration through a tuned stack to the titanium cutting blade.
Servo motion and recipes
Position the blade and product according to the selected portion pattern.
Product support
A conveyor, tray, fixture or cutting table holds and transports the product.
Safety and controls
Guarding, interlocks, sensors and the PLC coordinate safe machine operation.
Microscopic motion changes the blade–product interaction
The blade still travels through the product, but its high-frequency mechanical vibration changes how the cutting edge interacts with suitable soft, sticky, layered or brittle materials.
What vibration can support
When the application is correctly engineered and tuned, the rapid movement at the cutting edge can help the product separate with less drag and build-up than a conventional static blade.
- Cleaner cut surfaces on suitable products
- Less compression of delicate layers
- Reduced sticking and smearing in many applications
- Repeatable programmed portions
- Flexible shapes through controlled motion
What it does not guarantee
Ultrasonic technology is not a universal solution. Product formulation, inclusions, temperature, dimensions and target speed can change the result.
- Hard inclusions may require special evaluation
- Very cold or highly variable products need testing
- Blade geometry must fit the portion and product
- Capacity depends on the full handling cycle
- Cleaning and maintenance remain necessary
Where ultrasonic cutting is commonly evaluated
These application groups are starting points. NTM recommends testing the customer’s real product before the final machine and tooling are selected.
Bakery & cakes
Round, sheet and layered products where portion shape and clean presentation matter.
View applicationCheese & dairy
Blocks, rounds and soft cheese with product-specific temperature and texture.
View applicationFood-to-go
Sandwiches, wraps and pizza requiring controlled portions and presentation.
View applicationBars & confectionery
Energy bars, nougat, halva, confectionery and layered products.
View applicationMeat, poultry & pâté
Suitable formed or processed products evaluated for texture and temperature.
View applicationCustom industrial cutting
Engineered applications requiring trials, fixtures and integration planning.
View applicationUltrasonic and conventional cutting solve different problems
The best method depends on the food, required finish, production format and investment case. This table is a selection guide—not a substitute for a cutting trial.
| Decision factor | Conventional blade | Ultrasonic cutting |
|---|---|---|
| Cutting action | A moving or static blade separates the product through mechanical force. | A vibrating sonotrode combines mechanical travel with high-frequency microscopic movement. |
| Suitable products | Effective for many firm, simple or low-adhesion products. | Often evaluated for soft, sticky, layered, delicate or presentation-sensitive products. |
| Adhesion and smearing | May require frequent wiping or cleaning on adhesive products. | Can reduce build-up for suitable products, depending on formulation and process conditions. |
| Product deformation | Force can compress delicate layers or soft fillings. | May reduce deformation when tooling, support and parameters are correctly selected. |
| Automation flexibility | Can be automated with appropriate handling and controls. | Works with servo paths, recipes and application-specific fixtures for repeatable patterns. |
| Investment and validation | Usually lower system complexity for straightforward cuts. | Higher technical investment; product trials and acoustic-system matching are important. |
Eight factors that shape a cutting trial
A useful test reproduces the real product condition and target portion as closely as possible.
Temperature
Frozen, chilled and ambient products can behave very differently.
Composition
Fat, sugar, moisture and aeration influence adhesion and structure.
Layers & fillings
Layer strength and filling movement affect edge quality.
Inclusions
Nuts, fruit, crusts or hard particles require evaluation.
Dimensions
Height, width and target portion determine blade and motion needs.
Production rate
Loading, positioning, cutting and unloading define total capacity.
Cut pattern
Slices, grids, triangles or custom geometry require different paths.
Hygiene needs
Cleaning access, food-contact materials and changeover rules affect design.
THE MOST RELIABLE ANSWER IS A REAL TEST
Send your product. See your result.
NTM can evaluate the actual product, target portion and production requirement, then recommend a suitable starting configuration and provide cutting evidence.
Share the application
Tell us the product, dimensions, temperature, target portion and required rate.
Prepare the sample
We confirm sample quantity, packaging and shipping conditions before dispatch.
Run the trial
NTM evaluates tooling, support, motion and cutting parameters on the real product.
Review the result
You receive the available cutting evidence and a recommended machine direction.
Questions buyers ask before a cutting trial
Does the ultrasonic blade cut without touching the food?
No. The blade physically passes through the product. “Ultrasonic” describes the high-frequency mechanical vibration of the cutting tool.
Is ultrasonic cutting suitable for every food?
No. Suitability depends on composition, temperature, dimensions, inclusions, portion geometry and production goals. Testing is recommended.
Can the same machine cut different products?
Often, recipes and changeable tooling can support multiple formats, but the permitted range depends on the machine, blade, fixtures and hygiene process.
Does ultrasonic cutting eliminate cleaning?
No. It may reduce sticking and cleaning interruptions for suitable products, but normal hygienic cleaning and maintenance are still required.
What frequency is best?
There is no universal best frequency. The full acoustic stack, blade, amplitude and application must be matched as a system.
Can frozen products be cut?
Some frozen or chilled products can be evaluated, but temperature, hardness and inclusions strongly affect the result and tooling requirements.
What information should I send for a trial?
Product dimensions, condition and temperature, formulation characteristics, desired portions, required rate, available utilities and line layout are useful starting information.
Ready to test your product?
Share your product, portion target and production requirement. NTM will help define the next technical step.