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Digital Ultrasonic Generator

CGSONIC digital ultrasonic generator is the core driving power supply for ultrasonic welding, cutting and sewing systems. With full-bridge IGBT digital topology, auto frequency tracking and 10%~100% stepless amplitude control, it delivers stable, repeatable output for plastic welding, nonwoven fabric cutting, food cutting and packaging sealing. RS485 MODBUS interface enables seamless integration with PLC and automated production lines. Available in multiple industrial frequency bands to match your transducer and process.

product details

Product Description

The CGSONIC digital ultrasonic generator is engineered as the core driving power supply for ultrasonic systems. It converts AC mains into a precisely controlled high-frequency electrical signal that drives a piezoelectric transducer, booster and welding sonotrode to produce high-frequency mechanical vibration. With full-bridge IGBT digital topology, it provides stronger anti-interference capability and more stable long-term output than traditional analog generators. It is widely used in automated ultrasonic welding equipment and standalone ultrasonic machines, and is a cost-effective replacement for imported ultrasonic power supplies in plastic welding, nonwoven sewing, food cutting and packaging edge-sealing lines.

Core Selling Points

Six core features that make the CGSONIC digital ultrasonic generator the preferred choice for OEM machine builders and end users.

Feature (EN) Description (EN)

Auto Frequency Tracking DSP-based PLL locks resonant frequency within 0.5s after power-on, no manual tuning, long-run stability.

Stepless Amplitude Control 10%~100% Constant amplitude under variable load; suitable for soft & hard materials.

Multi-layer Intelligent Protection Over-current, over-temperature, over-voltage & no-load protection with auto-stop & alarm.

Digital LCD Touch Panel + 3 Modes Timing / Energy / External trigger modes, visual parameter setting, easy operation.

RS485 MODBUS Communication Plugs into PLC and upper computer for remote control and Industry 4.0 integration.

220V Universal Voltage, 1-Year Warranty Compatible with most global grids, multiple frequency bands & power ratings available. OEM/ODM supported.

Technical Functions

Auto Frequency Tracking: real-time resonant detection, auto fine-tune under load change to avoid frequency drift & vibration stop.

 Stepless Amplitude Adjustment 10%~100%: free amplitude tuning for different materials — soft films, rigid plastics, thick nonwoven.

 Multiple Working Modes: timing mode, energy mode, external IO trigger mode — plug into any assembly line.

 Intelligent Fault Diagnosis: fault code display quickly locates overheat, overcurrent, transducer abnormality, no-load.

 RS485 MODBUS Communication: connects to PLC for remote control and data logging.

 Air Cooling System: high-power continuous heat dissipation, designed for 24h non-stop industrial production.

Application Industries

Plastic Welding Industry: ABS, PP, PET, PVC thermoplastic parts; electronic housings, automotive parts, home appliance parts, toys, medical consumables.

 Nonwoven Fabric Processing: mask ear-loop welding, nonwoven protective gown seam, nonwoven bag & filter bag sewing/cutting.

 Food Cutting Industry: ultrasonic cutting for cake, cheese, frozen meat, chocolate and other sticky food.

 Packaging Industry: composite film edge sealing, soft tube sealing, paper-plastic package sealing.

 Automation Matching: ultrasonic spot welder, rotary welding machine, ultrasonic sewing machine, production line retrofit.

Digital Generator vs Analog Generator

A side-by-side comparison to help buyers quickly understand why a digital ultrasonic generator is worth the small price premium over the analog type.

Comparison Item	CGSONIC Digital Generator	Traditional Analog Generator
Frequency Tracking	DSP real-time tracking, locks in <0.5s	Manual trim potentiometer tuning
Amplitude Control	20%~100% stepless, software calibration	Fixed or coarse step adjustment
Anti-interference	Full-bridge IGBT + shielding, immune to grid noise	Sensitive to grid fluctuation
Fault Detection	LCD fault codes + RS485 alarm	Indicator LEDs only
Communication	RS485 MODBUS RTU, PLC ready	No communication port
Working Mode	External Trigge	Single mode
Yield at Mass Production	99%+ stability	~92%~96% under load
Price	Higher initial cost, lower TCO	Lower initial cost, higher rework rate

How to Integrate

To integrate the CGSONIC digital ultrasonic generator into your production line, you typically need three matched parts: a piezoelectric transducer (PZT4/PZT8 ceramic), a titanium or aluminum booster (1:1 / 1:1.5 / 1:2 ratio) and a customized sonotrode tailored to your part geometry. The generator's auto frequency tracking automatically locks onto the combined resonant point of these three parts after power-on, so engineers do not need to manually re-tune for each new horn. For machine builders unsure which booster ratio or sonotrode shape fits their application, our engineering team provides free matching consultation based on your material sample and weld area.

Working Principle

The ultrasonic generator converts common alternating current into high-frequency electrical energy. The transducer transforms electric energy into mechanical high-frequency vibration. The vibration transmits to the cutting blade through the horn. When the vibrating blade contacts food, micro high-frequency vibration forms tiny gaps between blade and food material, reducing friction. The blade easily cuts through food without squeezing, realizing smooth, clean cutting effect.

FAQ

Q1: Can this generator work with my existing transducer?

A: Yes. The CGSONIC digital ultrasonic generator is compatible with most standard industrial piezoelectric transducers on the market, including PZT4 and PZT8 ceramic types across common ultrasonic frequency bands. Please send us your transducer datasheet (capacitance, resonant impedance, frequency tolerance) and we will run a matching test before shipment. For buyers sourcing a complete set, we also supply matched transducer + booster + sonotrode as a turnkey package.

Q2: Is OEM/ODM available for this digital ultrasonic generator?

A: Yes. We support OEM laser-logo on the housing, custom parameter presets (default frequency, default amplitude, default protection thresholds) and customized housing color. For ODM projects above 50 units, we can adjust the front-panel layout, add analog I/O ports, or integrate customer-specific communication protocols (PROFINET, EtherCAT, CANopen).

Q3: What is the warranty period and after-sales support?

A: Standard warranty is 12 months from B/L date, covering manufacturing defects on the generator. Damage from improper operation (e.g. running without transducer, reverse wiring, input voltage outside spec) is excluded. After-sales includes lifetime remote technical support via WhatsApp/email, video-call troubleshooting, and spare-parts supply within 48 hours.

Q4: How does this generator avoid detuning and protect the transducer?

A: The generator uses a DSP-based Phase-Locked Loop (PLL) that scans the resonant frequency every 10ms and dynamically adjusts the drive frequency within ±50Hz of the resonance peak. Combined with four-layer hardware protection (over-current, over-temperature, over-voltage, no-load), the system shuts down within 200µs when an abnormal load is detected — fast enough to protect the PZT ceramic from cracking. To learn more about ultrasonic welding defects and prevention, see our guide 《Ultrasonic Welding Defects Analysis and Prevention

Industry Application

✅ akery Industry: Sponge cake, mousse cake, swiss roll, toast bread, sandwich, pastry

✅ Frozen Food Industry: Frozen meat, frozen pastry, frozen vegetarian products

✅ Snack Food Industry: Hawthorn roll, soft candy, nougat, energy bar

✅ Vegetable & Catering Processing: Fresh vegetables, onions, cooked food Suitable for bakery shops, food processing factories, central kitchens, catering enterprises, food R&D laboratories.
Manufacturer: Shenzhen Chengguan Intelligent Ultrasonic Equipment Co., Ltd. | Brand: CGSONIC