Ultrasonic fabric cutting and edge-finishing solution

Ultrasonic sewing machine for fray-free fabric cutting, manufactured by VietSonic

The machine combines a cutting roller with ultrasonic energy to cut and finish the edges of fabrics containing suitable thermoplastic components. Businesses can submit their actual materials for application testing before the machine configuration is finalized.

Cutting and edge finishing in one pass
Continuous roller operation
Designed to match the required cut profile
Local technical support

Call for consultation: 0938 49 33 66 View the machine in operation

VietSonic ultrasonic sewing machine with a roller for fray-free fabric cutting

The machine is developed around each business’s fabric-edge processing requirements

When cutting synthetic or nonwoven fabrics, businesses typically focus on the cut profile, loose fibers at the edge, operating speed, and the number of finishing steps required after cutting. The ultrasonic sewing machine with a cutting roller addresses these requirements by guiding the material through a continuous working zone, where the cut is formed and the edge is finished in the same process.

Reduce loose fibers and fraying at the cut edge

Ultrasonic energy is applied locally at the contact area. With a compatible material, the thermoplastic component at the edge is formed as the roller creates the cut.

Maintain a continuous cutting operation

The roller rotates in the direction of material feed, making the machine suitable for operations that process long cutting lines instead of individual points. The operator controls the material path across the machine table.

Reduce needle and thread operations

At positions converted to ultrasonic cutting and edge finishing, the business does not need needles, thread, or a separate hemming step for that specific cutting line.

How do the cutting roller and ultrasonic system work together?

The material passes through the contact area between the ultrasonic assembly and the roller. Mechanical pressure forms the cutting line, while ultrasonic vibration generates localized heat in the thermoplastic component. As a result, the cut edge can be formed as the material moves through the machine.

Video frame showing an ultrasonic sewing machine cutting a fabric edge

The material is guided through the machine’s cutting roller assembly.

Conditions that must be verified: processing performance depends on the material composition, thickness, number of layers, feed speed, applied pressure, and the required finished edge. Natural-fiber fabrics or materials that do not respond to ultrasonic energy must be evaluated with actual samples before a machine is selected.

See the ultrasonic sewing machine cutting fabric under actual operating conditions

The video shows the complete machine, the process of guiding fabric through the cutting zone, and the condition of the material after it passes through the roller. This provides businesses with a visual basis for evaluating the operating principle before submitting samples for testing.

VietSonic manages the process from sample testing to machine calibration

An appropriate machine configuration must be determined from the material and the actual production operation, rather than from the general product name alone. The process focuses on the factors that directly affect the cutting line and machine operation at the production facility.

Sample intake

The business provides fabric samples, the number of layers, thickness, required cut profile, and finished-edge requirements.

Cutting feasibility test

The technical team tests the material’s response to ultrasonic energy and evaluates the shape and condition of the edge after cutting.

Configuration design

The roller, ultrasonic system, drive mechanism, and machine table are selected according to the cutting line and the required operating layout.

Trial run and handover

The machine is calibrated using the sample, tested under actual operating conditions, and accompanied by operating instructions before production use.

Operator guiding fabric through the ultrasonic cutting roller

Inspecting fabric after cutting with an ultrasonic sewing machine

Reference configuration for the machine featured in this article

The specifications below describe the configuration presented on the product page. If the material, cutting width, or required speed changes, the technical team must re-evaluate the requirements before confirming the commercial machine configuration.

Ultrasonic frequency	35 kHz
Reference power	Approximately 800 W, with control based on frequency and operating energy level.
Cutting roller	Reference width of approximately 12 mm; manufactured from hardened steel, with a stated hardness above HRC56.
Roller speed	Up to approximately 50 rpm on the configuration presented.
Drive system	A synchronized mechanism supports control of the material feed ratio through the cutting zone.
Materials requiring testing	Nonwoven fabrics and certain synthetic materials with thermoplastic components; samples must be tested before the machine is finalized.

What information should a business provide for accurate consultation?

A material sample or the material name and composition.
Thickness, number of layers, and cutting dimensions.
Images showing the required finished edge.
Expected operating speed or production output.
Installation space and the intended operator layout.

Product groups that may be suitable for this application

Application suitability must be confirmed using the actual material. The list below helps businesses identify relevant production operations for sample evaluation.

Cutting and edge finishing of nonwoven fabrics used for bags, filters, or protective components.
Creating finished edges on certain synthetic fabrics used for curtains, table coverings, or decorative products.
Processing cutting lines on technical films containing suitable thermoplastic components.
Creating shaped cut-and-seal lines with a roller for components requiring continuous processing.

Questions businesses should clarify before selecting a machine

Can the machine cut every type of fabric?

No. Cutting and edge-forming performance depends on the thermoplastic content, fabric structure, thickness, and number of layers. Sample testing is required before the machine configuration can be confirmed.

Can the roller be designed to match the product’s cutting line?

The roller design can be adapted to the required width, profile, and finished-edge requirements. A finished-product sample or drawing will help the technical team evaluate the application more accurately.

Can the machine replace every sewing operation?

The machine only replaces operations that are suitable for ultrasonic cutting and bonding technology. A product may still require conventional sewing, mechanical cutting, or other processing methods.

Send a fabric sample so VietSonic can evaluate it before finalizing the machine configuration

Provide the material sample, required cut profile, and expected production output. The technical team will discuss application feasibility, the cutting roller solution, and a machine configuration suited to the actual production operation.

Call Mr. Hai: 0938 49 33 66

Email: info.vietsonic@gmail.com | Website: vietsonic.vn