The ultrasonic wire harness welding machine is a professional industrial solid-state welding device for metal wire harnesses. It features solder-free, non-melting, high efficiency and high reliability. By adopting high-frequency vibration to realize solid-state bonding of copper and aluminum wire harnesses without any auxiliary materials or wire burning, it serves as an ideal replacement for traditional soldering, crimping and fusion welding processes. It is widely applied in mass production of wire harnesses for new energy, automotive, home appliance and precision electronics industries.
1. Working Principle
The machine converts electric energy into high-frequency mechanical vibration, and cooperates with constant pneumatic pressure to quickly remove oxide layers on the wire harness contact surfaces. It enables the clean metal surfaces to fit tightly and achieve atomic diffusion and embedding, bonding wire harnesses into a solid integrated structure. As a low-temperature solid-state welding process, it causes no metal melting or high-temperature heat diffusion, and will not damage the insulation layer of wire harnesses.
2. Core Product Advantages
1. Firm Welding and Stable Quality
Equipped with a digital closed-loop control system, the machine accurately regulates welding parameters and ensures consistent batch production results. Welded wire harnesses form an integrated structure with stable resistance, high tensile strength, excellent vibration resistance and oxidation resistance. It effectively eliminates cold solder joints, virtual welding and wire breakage, fully meeting the application standards of high-voltage and high-current wire harnesses.
2. Cost-Effective and Mass-Production Friendly
A single welding cycle takes only 0.1 to 0.5 seconds with no cooling time required, delivering much higher efficiency than traditional processes. It requires no consumables such as solder or flux, with low power consumption and simplified working procedures. Supporting one-click switching of multiple customized welding formulas, it perfectly adapts to flexible mass production.
3. Safe, Eco-Friendly and User-Friendly Operation
The welding process produces no electric arcs, sparks, harmful fumes or residues, ensuring a safe and eco-friendly working environment. Featuring a touchscreen interface, it supports convenient parameter adjustment and formula access, enabling new operators to get started quickly. Multiple built-in safety protections effectively avoid operational risks.
4. Strong Compatibility and Wide Application Range
It is applicable to welding of various copper and aluminum wire harnesses, including wire-to-wire bonding, wire-to-terminal welding and copper/aluminum sheet laminating, supporting wire sizes up to 160mm². Customized welding heads and fixtures are available to meet the processing requirements of non-standard and special-shaped wire harnesses.
3. Core Configuration and Parameters
Adopting a modular and compact design, the machine is equipped with durable components with low failure rate, suitable for long-term uninterrupted industrial production.
Core System: Full-digital intelligent ultrasonic generator with automatic frequency tracking and amplitude stabilization, ensuring stable welding power without fluctuation
Precision Control: High-precision pneumatic and servo control system with accurate pressure and vibration response
Operation Function: High-definition touch screen supporting formula storage, parameter traceability and data export
Standard Parameters: Working frequency 20KHz, adjustable power 6000W-14000W, rated voltage 220V, working air pressure 0.5-0.7MPa
Processing Functions: Wire harness butt welding, squaring, shaping, terminal pressure welding and other processes
Machine Types: Desktop and vertical styles optional, compatible with standalone operation and assembly line integration, with non-standard customization available
4. Application Scenarios
It is mainly used for high-precision and high-reliability wire harness processing in the following fields:
New Energy Industry: Welding of power battery wire harnesses, high-voltage connecting wires, battery tabs and bus bars
Automotive Industry: Welding of automotive high and low-voltage wire harnesses, headlight harnesses and terminal connecting wires
Home Appliance & Electrical Industry: Welding of internal appliance harnesses, motor leads and electric control terminal wires
Precision Electronics Industry: Precision butt welding of micro multi-strand harnesses for instruments and communication equipment
Other Processing: Integration of multi-strand metal wires, bonding of copper and aluminum sheets, and welding of special-shaped terminals
5. Process Advantages
Compared with traditional processes, ultrasonic welding requires no consumables, avoids virtual welding and ensures superior conductivity. Compared with crimping, it achieves tighter bonding with better anti-loosening and anti-oxidation performance. Different from fusion welding, it causes no wire damage or insulation layer damage, delivering a higher finished product yield. It can be well integrated into automated intelligent production lines.
6. After-Sales Support
All machines pass strict aging tests for stable and long-term service. We provide one-stop services including on-site installation, commissioning, operational training and lifelong maintenance. Customized sample testing, process optimization and fixture customization services are also available to support stable and continuous mass production for customers.

