This Double-Head Capacitor Welding Machine is designed for efficient batch welding of automotive components. Utilizing dual-station synchronous capacitor discharge technology, it can complete precise two-point welding in one operation.
Integrating high-precision servo positioning with intelligent energy control, it achieves ultra-high-quality welding with no spatter and zero deformation, making it the ideal choice to enhance the efficiency and product consistency of automated production lines.
Certifications
Certified with ISO9001, AS9100 aerospace quality systems,Products certified with CE, UL international certifications.
Invention Patent Certificate
Design patent certificate
Utility Model Patent Certificate
Utility Model Patent Certificate
CE certificate for polymer diffusion welding machine
CE certificate for diffusion welding machine
Our Partners
We have served over 5,000+ customers worldwide, and our long-term partners include Tesla, BYD, and Siemens.Over 50+ Fortune 500 companies.
Haifei Customer Site
Core Advantages
Synchronized Dual-Point Welding
Reduces cycle time by 50% compared to single-head machines.
Minimal Thermal Impact
Discharge time <10ms ensures no backside burn marks or material warping.
Low Power Grid Demand
High-capacity capacitors store energy for instantaneous release, requiring lower peak power than AC welders.
Precise Pressure Control
Independent pneumatic or servo-driven cylinders for each head ensure consistent forging force.
Technical Specifications
| Parameter | Technical Data |
| Rated Capacity | 1000J - 6000J (Customizable) |
| Input Voltage | 380V / 415V / 440V (50/60Hz) |
| Charging Voltage | 0 - 500V (Adjustable) |
| Maximum Welding Current | Up to 120kA |
| Electrode Force | 2000N - 15000N (Per Cylinder) |
| Throat Depth | 250mm - 450mm (Optional) |
| Control System | PLC + Touch Screen (HMI) |
Application areas
Core Application: Automated batch welding of automotive components.
Automotive Seats
Simultaneous projection welding of nuts on both sides of slide rails.
Body Structural Parts
Simultaneous two-point welding for door hinges, seat belt anchor plates.
Powertrain
Two-point fixation welding for brackets, bushings.
New Energy Vehicles
High-precision welding for battery trays, motor housings.
Product Advantages and Customer Value
| Core Problems Solved | Tangible Benefits for Customers | |
| 1 |
Low efficiency of single-point welding creates production bottlenecks. |
Doubled Efficiency: Eliminates one process step directly, increasing capacity by over 100%. |
| 2 |
Workpiece deformation due to uneven welding heat input or sequential welding stress. |
Quality Leap: Enables stable production with near-zero defects (CPK≥1.67). |
| 3 |
Welding quality relies on operator skill, leading to poor batch-to-batch consistency. |
Cost Reduction: Saves floor space, labor, and post-weld correction costs, leading to a short ROI period. |
| 4 |
Poor equipment flexibility, resulting in time-consuming and labor-intensive product changeovers. |
Enhanced Flexibility: Quickly responds to market demands for multi-variety, small-batch production. |
Quality First, Service First-Class
Our quality system is the cornerstone of our business.We possess a strong R&D team for non-standard automation
and precision manufacturing capabilities.
Safe, efficient,
and reliable
Lifetime service optimization experience
Customized according
to user needs
Innovative technology iteration
Why Choose Our Double-Head Capacitor Welding Machine?
This dual-head energy storage welding machine is specifically designed for efficient welding of bolts and nuts in industries such as automotive parts and home appliance hardware.
It can simultaneously perform precise and robust welding on both sides of the workpiece, producing consistent welds while saving energy.
It is particularly suitable for applications in the automotive parts industry and other sectors with high requirements for strength and production cycle time.
Ongoing Partnership: Delivery is just the beginning. We provide continuous process optimization and upgrade support, growing together with our customers.
Frequently Asked Questions
What are the practical benefits of independent energy control for the two welding heads?
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It allows for optimal energy settings to be applied independently when the material thickness, type, or coating differs on each side of the workpiece. This ensures both weld spots achieve the best possible quality simultaneously, which is not possible with single-energy control.
How do you guarantee absolute synchronization between the two weld spots?
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We employ high-response servo systems controlled by synchronized PLC pulse commands, resulting in a physical synchronization error of less than 1 millisecond. This can be further verified and monitored using pressure sensors.
Does this machine leave burn marks on the surface of the workpiece?
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No. Because the discharge time is extremely short (less than 10 milliseconds), the heat is concentrated at the weld nugget before it can conduct to the surface, maintaining the aesthetic integrity of the part.
What safety features are integrated into the machine?
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The machine includes comprehensive safety features such as light curtains or safety mats in loading areas, dual-hand operation controls, emergency stop circuits, door interlock switches, and pressure/overload monitoring.
Can the Double-Head Capacitor Welding Machine adapt if our product design changes in the future?
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Yes. We build a degree of flexibility into the initial design. For minor changes, adaptation is possible through fixture and program modifications. For major changes, we offer upgrade services.
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