Marshmallows are among the most challenging confectionery products to cut. Their soft, elastic, and sticky texture often leads to deformation, uneven edges, knife sticking, and frequent production interruptions when traditional mechanical blades are used. So how can manufacturers achieve clean, uniform marshmallow cuts while maintaining speed, hygiene, and continuous production?
The answer is demonstrated clearly in the production process shown in the video: the Wanlisonic Ultrasonic Automatic Marshmallow Cutting Machine. By combining multi-blade ultrasonic cutting, segmented conveying, and intelligent control systems, Wanlisonic delivers a highly efficient and reliable solution specifically designed for marshmallow and soft candy processing.
Ultrasonic Cutting: The Ideal Technology for Marshmallows
Marshmallows require a cutting method that avoids compression and sticking. Ultrasonic cutting technology uses high-frequency vibrations—20,000 Hz in this machine—to reduce friction between the blade and the product. Instead of pressing through the marshmallow, the blade “vibrates” through it, creating a clean slice without pulling, tearing, or deformation.
In the video, the marshmallow slab moves steadily along a blue food-grade conveyor belt toward the cutting area. The ultrasonic blades descend smoothly, slicing the product into uniform pieces with sharp, well-defined edges. Even at continuous operation, the marshmallows retain their original shape and texture.
Four Ultrasonic Blades for Continuous, Stable Output
This Wanlisonic machine is equipped with four ultrasonic knives, enabling high-efficiency cutting for industrial-scale production. Multi-blade operation allows multiple cuts to be performed in a single cycle, significantly increasing output while maintaining consistency.

The blades are manufactured from titanium alloy, ensuring:
- High strength and durability
- Excellent vibration transmission
- Compliance with food safety standards
Although the standard configuration can support different blade options, the demonstrated setup highlights how multi-knife ultrasonic systems excel in handling sticky confectionery products like marshmallows.
Segmented Conveying for Precise Product Separation
One of the most distinctive features shown in the video is the segmented conveying system. After cutting, the marshmallow pieces are automatically pulled apart by a controlled distance on the conveyor belt. This separation prevents pieces from sticking back together and prepares them perfectly for downstream processes such as coating, packaging, or secondary cutting.
This segmented movement is fully synchronized with the cutting rhythm, allowing continuous cutting without stopping the line. The result is smoother production flow, higher efficiency, and less manual intervention.
Blue Food-Grade Conveyor and Hygienic Structure
Food safety and hygiene are critical in confectionery manufacturing. Wanlisonic addresses this with:
- A blue food-grade conveyor belt, commonly used in food processing for easy visual inspection
- A stainless steel machine frame, resistant to corrosion and easy to clean
- Smooth structural design to minimize residue buildup
The conveyor speed is adjustable, allowing precise coordination between product feeding, cutting, and separation.
Advanced Control and Safety Systems
The Wanlisonic Ultrasonic Automatic Marshmallow Cutting Machine is not only powerful but also intelligent. It is equipped with a four-axis control system, providing precise coordination of blade movement, conveyor motion, and cutting timing.
Key control and safety features include:
- Dedicated cutting knife control system
- High-performance servo motors for accuracy and stability
- Security door, ultrasonic frequency scanning, and fault indicator lamps
These features ensure safe operation, quick troubleshooting, and long-term production stability.
Machine Technical Parameters
Below is a detailed overview of the machine’s technical specifications, clearly outlining its industrial-grade performance:
| Parameter | Specification |
|---|---|
| Model | Wanlisp4-300K1450L2000 |
| Voltage | 220V |
| Rated Power | 5000W |
| Frequency | 50Hz–60Hz |
| Ultrasonic Frequency | 20000Hz |
| Amplitude | 20%–40% |
| Cutting Speed | 20 cuts/minute (adjustable) |
| Number of Blades | 2 (optional) |
| Blade Materials | Titanium Alloy |
| Blade Size | 300mm / pc (optional) |
| Cut Type | Slices |
| Machine Frame Material | Stainless Steel |
| Automatic Belt Convey | Yes |
| Conveyor Speed | 0–3000 mm |
| Safety Protection System | Security door, ultrasonic frequency scan, fault indicator lamp |
| Control System | Four-axis Control System |
| Cutting Knife Control | Servo Motor |
| Certificate | CE |
Why Choose Wanlisonic for Marshmallow Cutting?
Wanlisonic has extensive experience in ultrasonic food cutting technology, especially for soft, sticky, and delicate products. This marshmallow cutting solution offers manufacturers several key advantages:
- Clean, non-stick cuts even with high-sugar products
- Consistent portion size and professional product appearance
- Continuous, automated operation with minimal downtime
- Flexible configuration, suitable for various marshmallow sizes and formats
- Reduced waste and improved yield
Beyond marshmallows, the machine can also be adapted for nougat, soft candy, jelly products, and other elastic confectionery items.
FAQ –Ultrasonic Automatic Marshmallow cutting Machine
Q1: Why is ultrasonic cutting better for marshmallows than traditional blades?
A1: Ultrasonic blades vibrate at high frequency, reducing friction and preventing sticking or deformation, which is ideal for soft and sticky marshmallows.
Q2: Can the cutting speed be adjusted?
A2: Yes, the cutting speed is adjustable up to 20 cuts per minute to suit different product densities and production needs.
Q3: What is the purpose of the segmented conveying system?
A3: Segmented conveying separates the marshmallow pieces after cutting, preventing re-adhesion and improving downstream handling.
Q4: Is the machine safe for operators?
A4: Yes, it includes a security door, ultrasonic frequency monitoring, and fault indicator lamps to ensure safe operation.
Q5: Does the machine meet international food safety standards?
A5: Absolutely. It features food-grade materials, a stainless steel frame, and CE certification.
Contact Information
Kathy Zheng (Senior Customer Consultant)
📧 Email: sales5@wanlisonic.com
📞 Tel / WhatsApp / WeChat: +86 152 8060 7730


