Your Leading Ultrasonic Welding Machine Manufacturer
In modern manufacturing, especially in automotive, new energy, electronics, and electrical equipment industries, weld quality directly impacts product reliability and performance. Traditional welding methods often struggle to meet the requirements for high-speed production, small weld points, and precise wire harness consistency.
Ultrasonic welding machines use high-frequency mechanical vibrations to achieve solid-state connections without melting the base material, providing clean, stable, and highly repeatable welds—making them an ideal solution for industrial production.
Haifei Intelligent Equipment Co., Limited. is a well-known welding equipment manufacturer. We can meet the precision welding needs of various industries.
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Ultrasonic Spot Welding MachineThe Haifei HF-WX-20XC-2 is a high-performance Ultrasonic Spot Welding Machine specifically designed for large-section wire harnesses. Utilizing 20KHz high-frequency vibration technology with a...view more
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Ultrasonic Wire Harness Splicing WelderThe Ultrasonic Wire Harness Splicing Welder is a cutting-edge system designed for high-reliability, oxide-free bonding of wire harnesses in automotive, aerospace, and appliance manufacturing....view more
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Ultrasonic Seam WelderHaifei’s ultrasonic welding machine delivers precise, high-strength bonds for copper, aluminum, and other conductive components. Its solid-state welding ensures minimal heat damage and consistent...view more
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Ultrasonic Spot WelderOur Ultrasonic Spot Welder utilizes high-frequency mechanical vibrations to create instant, cold welds between similar or dissimilar metals. This innovative technology delivers clean, oxide-free...view more
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Ultrasonic Wire Harness Terminal WelderThe Ultrasonic Wire Harness Terminal Welder is a latest system designed for high-speed, reliable bonding of electrical terminals in automotive, aerospace, and appliance wire harness production....view more
Why Choose Us
Rich Experience
Founded in 2009, Haifei has grown from a small business to a world-renowned welding equipment manufacturer. The customer-centric, win-win cooperation philosophy makes the company more mature and powerful.
Production Capacity
Our modern 10,000 m² production facility and team of 100+ engineering specialists enable us to deliver innovative, high-performance welding solutions to industries worldwide.
Production Market
Haifei has more than 40,000 successful welding application cases, with customers in Europe, North America, Southeast Asia, India, and other regions.
24H Online Service
If you encounter difficulties in using the product, we will respond to your needs as soon as possible and provide you with the greatest support.
What Is Ultrasonic Welding?
Ultrasonic welding is a solid-state joining process that uses high-frequency mechanical vibrations to generate heat through molecular friction at the contact surface, forming a strong bond without melting the base materials.
Core Advantages
No solder, flux, or adhesives required
High-strength, repeatable welds
Minimal thermal stress and material deformation
High efficiency suitable for large-scale production
Applications of Ultrasonic Welding Machine
- Ultrasonic welding machine is used to fuse contact points on cell phones and other consumer electronics that are generally inaccessible with other welding methods. These techniques can be adapted to a wide range of commercial and industrial applications. In the food industry, the ultrasonic welding process is used to create a hermetic seal. It can fasten blister packs and facilitate the manufacturing of a variety of products, including toys, disposable lighters, pipettes and intravenous catheters.
- Ultrasonic welding is commonly used in the plastics, aerospace and automotive industries to join similar materials. It is particularly useful in the production of medical products. Since the process does not introduce exhaust or other contaminants and the welds do not degrade, the manufacturing equipment can be used in a clean-room environment.
Types of Ultrasonic Welding Machines
Wire Harness Terminal Welding Machines
The Ultrasonic Wire Harness Terminal Welder is a latest system designed for high-speed, reliable bonding of electrical terminals in automotive, aerospace, and appliance wire harness production. Using ultrasonic vibration energy, it creates cold welds without thermal distortion—Perfect for sensitive electronic applications.
Key Benefits
Precise energy and time control
Minimal insulation damage
High repeatability for mass production
Integrates with automated loading and inspection systems
Typical Applications
Automotive battery terminals
Electronic device terminals
High-current connectors
Wire Harness Splicing Welding Machines
The Ultrasonic Wire Harness Splicing Welder is a cutting-edge system designed for high-reliability, oxide-free bonding of wire harnesses in automotive, aerospace, and appliance manufacturing. Utilizing high-frequency mechanical vibrations, it creates cold welds that maintain conductivity while eliminating thermal damage risks.
Key Benefits
High-speed, uniform welds for multiple wires simultaneously
Low-resistance welds for stable current conduction
Precision fixtures to protect cable integrity
Consistent performance for complex harness assemblies
Typical Applications
Automotive wire harness splicing
Battery pack busbar connections
Multi-cable connections for industrial and renewable energy systems
Core Components of Ultrasonic Welding Machines
Ultrasonic Generator
Converts electrical energy into high-frequency mechanical vibrations for welding.
01
Transducer and Booster
Amplifies vibration and delivers precise energy to the welding horn.
02
Welding Horn / Sonotrode
Transfers mechanical vibration to the workpiece for welding.
03
Clamping and Feeding System
Secures wires or terminals in position, ensuring repeatable welds.
04
Control System
Digital or PLC-based control for timing, amplitude, and energy monitoring, with optional MES integration for production data tracking.
05
How to Choose the Right Ultrasonic Welding Machine
Selecting the right ultrasonic welding machine requires clarifying welding requirements, production volume, material specifications, and automation level to match the optimal machine type.

1. Define Welding Application
Identify whether your process is single-wire terminal welding or multi-wire splicing, which directly determines the machine type.
Terminal welding machines:
- Single wire to metal terminal connections
- High weld count and precision requirements
- Typical industries: automotive battery terminals, home appliance connectors, electrical terminals
Wire harness splicing machines:
- Joining multiple wires into a harness
- Requires low-resistance, high-strength connections
- Typical industries: automotive harnesses, battery pack busbars, industrial control wiring
2. Consider Material and Wire Specifications
Verify wire gauge, conductor material, and insulation type to ensure weld quality.
- Wire gauge and conductor type: small gauge (0.1–1.0 mm²) suits terminal welding; large gauge, multi-strand, or copper/aluminum hybrid wires suit splicing
- Insulation type: PVC, TPE, silicone, etc., affects welding energy and pressure
- Current requirements: high-current cables need low-resistance welds for long-term reliability
3. Production Volume and Cycle Time
Calculate required throughput to select appropriate automation level, avoiding overinvestment or insufficient capacity.
- Single-station terminal welding machines: suitable for small to medium batch production
- Multi-station/automated splicing machines: suitable for high-volume, high-speed production
- Determine production pace (welds per minute/hour) to match machine capacity
4. Automation and Data Management
Choose automation level based on production complexity and data requirements.
- Basic machine: manual loading, suitable for small batches or R&D
- Semi-automated: manual loading, automatic welding, for medium production
- Fully automated/robot-integrated: multi-station continuous production, high precision
- Data tracking: digital or PLC machines for production monitoring and quality traceability, MES integration optional
5. Long-Term Maintenance and Expandability
Select a reliable brand for long-term stable operation and future production line expansion.
- Machine stability, adjustable welding parameters, and replaceable components
- Modular design for adding stations or upgrading robotics
- Availability of after-sales service and technical support
Specifications of Ultrasonic Welding Machine
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Product model |
HF-WX-20DZ |
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Ultrasonic frequency |
20KHz |
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Power |
9KW/12KW |
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Rated voltage |
380V 50Hz |
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Welding range |
35-90mm2 |
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Production efficiency |
About 1.2 seconds/time, depending on the welding square |
Features of Ultrasonic Welding Machine
- Very short process times;
- Little or no thermal damage to the component due to cold welding tools;
- Low energy requirement for welding and thus high efficiency;
- No solvents and additives necessary (pure recycling);
- Constant, reproducible welding results are possible via a wide range of welding parameters;
- Different thermoplastic materials can be joined together by ultrasonic;
- The welding tools do not heat up, so there are no warm-up and cool-down times and the tools can be changed quickly;
- No risk of injury from hot machine parts;
- Very good integrability into existing systems;
- Possibility of intelligent networking and control.

Our Advantages
- High-precision, repeatable welding ensures consistent performance in mass production
- Flexible customization for different wire gauges, terminal types, and harness configurations
- Global support and technical service ensure long-term machine reliability
- End-to-End Support from Sample to Mass Production
- Welding process validation and sample testing
- Customized production line design and process optimization
- Equipment manufacturing, integration, and commissioning
- On-site installation, training, and long-term technical support
Manufacturing Process



Usage Requirements of Ultrasonic Welding Machine
- Routine checks and cleaning are necessary to prevent issues that could slow down production or cause costly repairs.
- Make sure to inspect components like the ultrasonic horn, booster, and transducer regularly.
- Lubricate moving parts as recommended by the manufacturer.
- It is also essential to ensure that cooling systems are functioning correctly to prevent overheating, which can lead to equipment failure.
- Maintaining detailed maintenance logs can help track the condition of the machinery and predict potential failures. Scheduled downtime for maintenance can prevent unexpected breakdowns and extend the lifespan of the equipment.
Certificate



Payment Terms
T.T with 30% downpayment, 70%before shipment.
Paypal or West Union also accept.
Packaging & Shipping

FAQ
We're well-known as one of the leading ultrasonic welding machine manufacturers and suppliers in China. Please rest assured to buy high quality ultrasonic welding machine made in China here from our factory. For price consultation, contact us.
Ultrasonic Spot Welder, ultrasonic welding machine, Ultrasonic Wire Harness Splicing Welder
