How to Cut a 30cm Diameter Round Cake
How to Cut a 30cm Diameter Round Cake – Ultrasonic Cutting – Cheersonic
Pre-Cutting Preparation
Equipment Inspection and Adjustment:
First, check that all components of the ultrasonic cutting equipment are functioning properly. Verify that the ultrasonic generator’s power supply is securely connected to ensure it can generate high-frequency electrical signals. Also, check that the transducer is properly installed and free of signs of looseness or damage, as it is the key component that converts electrical signals into mechanical vibrations.
Adjust equipment parameters based on the texture and size of the cake. For a 30cm diameter round cake, due to its larger size, the ultrasonic frequency can be set between 20 and 30 kHz. This ensures sufficient cutting energy without damaging the cake’s structure due to excessively high frequencies. The amplitude can be adjusted between 8 and 12 μm, which ensures smooth penetration of the cutter.

Tool Selection and Installation:
Choosing the right cutting tool is crucial. Since you are cutting a round cake, it’s best to use a tool with a curved edge that closely matches the edge of the cake to ensure a smooth cut. The length of the cutter should be slightly larger than the diameter of the cake. For example, a cutter length of 32-35 cm can be selected to ensure a complete cut through the cake in one go.
When installing the cutter, ensure it is securely attached to the transducer and that the cutter’s vibration direction is perpendicular to the cake’s surface. This ensures that the ultrasonic vibrations are effectively transmitted to the cake for cutting.
Cake Positioning and Positioning:
Place the round cake on a flat, stable cutting platform. To facilitate cutting and ensure a uniform shape after cutting, a rotating platform can be used. After the cake is positioned, secure it in the center of the platform using a positioning device (such as a mechanical clamp or suction cup) to prevent movement during the cutting process.
Key Points During Cutting
Cutting Speed Control:
When cutting a 30 cm diameter round cake, the cutting speed should be controlled to avoid uneven surfaces or damage to the internal structure. A trial cutting speed can be performed initially, for example, cutting 1-2 circles per minute (around the center of the cake) to observe the quality of the cut surface and the overall shape of the cake.
Adjust the cutting speed based on the texture of the cake and the actual cutting results. For softer cakes, such as sponge cakes, the cutting speed can be increased, but preferably no more than 3 revolutions per minute. For harder pound cakes, the cutting speed should be slower, approximately 0.5 to 1 revolution per minute.
Maintain a uniform cutting depth:
During the cutting process, ensure the blade penetrates the cake at a uniform depth. This can be controlled by adjusting the cutting pressure or observing the blade vibration. If the blade penetrates too deeply or too shallowly in any area, stop cutting immediately and check for blade deviation or unevenness on the cake surface.
For multi-layer cakes, pay special attention to the cutting depth between each layer. Pre-set the cutting depth based on the thickness of each layer and the total height of the cake to ensure each layer is cut cleanly. For example, if a three-layer cake is approximately 5 cm thick, set the cutting depth to approximately 5 cm per layer and complete the cuts in three separate passes.
Pay attention to the quality of the cake’s edges:
Since the cake is round, the quality of the cut edge is crucial. When approaching the edge, slow down the cutting speed slightly to ensure a clean and smooth edge. The curved edge of the knife can be used to conform to the edge of the cake, ensuring a smooth transition in the cutting motion and avoiding jagged edges or chipped cake edges.
Post-Cutting Handling and Quality Inspection
Separating and Arranging Cake Blocks:
After cutting, carefully separate the cake blocks. If the cake is soft, you may need to use an auxiliary tool (such as a cake spatula) to remove the cake blocks from the cutting platform to prevent deformation.
Arrange the cut cake blocks, checking that each block is uniform in size and shape. Blocks that do not meet your requirements can be simply trimmed or discarded as scraps.
Quality Inspection:
Inspect the cut surface of the cake after cutting. The cut surface should be smooth and flat, without obvious delamination, tears, or debris. If the cut surface quality is poor, analyze whether it is due to the cutting speed, the knife, or the texture of the cake itself, so that adjustments can be made during the next cut.
Observe the overall shape and size of the cake blocks. The cake blocks should be round and the expected size. For example, if a cake is to be cut into 8 equal pieces, the central angle of each piece should be approximately 45°, and the radius error should be controlled within a small range to ensure the quality and appearance of the product.
About Cheersonic
Cheersonic manufactures the leading portioning equipment for bakeries producing fresh and frozen desserts. Since 1998 bakers have used Cheersonic machines to cut, slice and portion cheesecake, pie, layer cake, loaves, butter, cheese, pizza, sandwichs, and more. Cheersonic offers ultrasonic cutting solutions that support start-up bakeries and high production commercial facilities alike. Small standalone machines can be used in manual baking facilities and large inline robotic solutions aid in high speed production.
Cheersonic offers many ultrasonic slicing models, both inline and offline applications, with production speeds of 80 to 1,500 cakes or pies per hour.
Cheersonic’ latest offline introductions include ultrasonic cutting with or without divider inserts between each slice. This improves the quality of the cut and makes for a much better product presentation for the customer. In addition, robotic arm improves the speed, efficiency, and accuracy of the cutting process, producing professional looking products every time.
Chinese Website: Cheersonic Provides Professional Ultrasonic Cutting Solutions

