Haifei copper diffusion welding equipment is designed for consolidating the terminal sections of laminated copper foils, flexible busbars and other high-current copper connectors. The equipment combines controlled electrical heating with pneumatic, hydraulic or servo-controlled pressure to form compact terminals while retaining the flexibility of the unwelded foil section.
Different equipment capacities and tooling configurations are available for EV battery connectors, energy storage busbars, switchgear flexible links, circuit-breaker conductors and customized copper components.
Machine selection is based on the copper foil structure, bonding dimensions, finished terminal thickness and required production output.
HFTD-150-Y
HFTD-200-Y
HFTD-350-Y
HFTD-100-Q
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Key Advantages for Flexible Busbar and Conductive Metal Welding
Manufacturers in EV, energy storage, and power industries often face challenges such as unstable joints, high energy costs,
and limited process control.
Our diffusion welding equipment provides a reliable solution with diffusion welding technology, offering superior strength, energy efficiency, and full process traceability.
High Joint Strength
Achieves 90% of base material strength, ideal for welding copper flexible busbar.
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Energy Saving
30% lower power consumption with three-phase balanced load.
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Smart Control
Proprietary software supports 64 welding procedures and 1,000,000 traceable records.
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Versatile Applications
Perfect for welding the flexible braided connectors, copper busbars, aluminum conductors, and mixed metals.
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Stable & Precise
±1% control accuracy ensures consistent welding quality in mass production.
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👉 Each parameter is designed not only for performance, but also to help you reduce rework, cut costs, and pass international quality audits.
Welding Effect Display
Application Industries
EV Battery Packs and Busbars
Used for copper flexible busbars, laminated copper foil connectors, braided connectors, and battery current-carrying parts. Diffusion welding helps improve joint strength and conductivity for high-current battery connections.
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Energy Storage Systems
Suitable for energy storage copper busbars, aluminum conductors, flexible connectors, and composite conductive parts. Stable bonding helps reduce contact resistance variation and local overheating risks.
02
Power Distribution Equipment
Used for copper busbars, flexible braided connectors, switchgear conductive parts, and power connection assemblies. The process supports large-area conductive joining with stable pressure and heating control.
03
Automotive Electrical Components
Suitable for conductive connectors, power modules, EV electrical parts, and high-current connection assemblies where weld repeatability and traceability are important.
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Flexible Busbar Manufacturing
Designed for flexible busbar production where bonding area, conductivity, and surface quality directly affect product performance.
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High Precision Copper Diffusion Welding Equipment – Flexible Busbar Welding Solution
Solution
Tired of unstable manual welding and inconsistent weld quality?
This advanced diffusion welding solution ensures joint strength up to 90% of base metal and drastically reduces rework costs.
OEM & ODM
We provide full OEM & ODM customization for industrial clients.
Customizable items include welding parameters, software interface, mechanical structure, appearance design, and logo printing.
Ready To Improve Your Busbar Welding Quality?
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Send Inquiry / Request Quotation
02
Technical Evaluation & Solution Confirmation
03
Contract Signing & Sample Verification
04
Production & Inspection
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Delivery & Installation
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After-sales Support
Packaging
Flexi Busbar Welding Machine
Vacuum Inner Packaging
Wooden Crate Outer Box
Our Mainly Partners
We have served over 5,000 customers worldwide, and our long-term partners include Tesla, BYD, and Siemens. Over 50+ Fortune 500 companies.
Certification & Patent
Haifei Customer Site
Flexi Busbar Welding Feactures
- High Joint Strength – Welded joints achieve up to 90–98% of the base material's tensile strength, ensuring permanent, solid bonding.
- Perfect Metallurgical Bonding – The diffusion process creates atomic-level fusion without filler metals, resulting in seamless and impurity-free joints.
- Zero Oxidation & No Porosity – The vacuum or protective atmosphere prevents oxidation, ensuring smooth, dense, and pore-free weld surfaces.
- Excellent Electrical Conductivity – Welded busbars maintain over 98% conductivity compared with the original copper material, ideal for power transmission components.
- No Material Deformation – Uniform temperature and pressure control minimize thermal stress, producing flat and dimensionally stable welds.
- Smooth Weld Surface – The welded interface requires no additional grinding or polishing, achieving a clean and visually perfect joint surface.
- High Repeatability & Consistency – Automated control system guarantees stable welding results across mass production batches.
- Minimal Residual Stress – Controlled diffusion temperature profile eliminates internal stress, improving fatigue resistance and long-term reliability.
- Strong Hermetic Sealing – Welded parts exhibit airtight and vacuum-tight sealing, suitable for battery, sensor, and aerospace applications.
- Multi-Material Compatibility – Capable of welding copper, aluminum, stainless steel, titanium, and other conductive or dissimilar materials with uniform bonding quality.
Automated Production Solutions For Diffusion Welding Machine
- Upgrade your production with our fully automated diffusion welding machine-perfect for creating high-strength, high-conductivity copper flexible busbars!
- Ideal for EV batteries, renewable energy systems, and power distribution applications.
Key Advantages:
- Fully automated process – Consistent quality with minimal operator input
- No solder or filler materials – Pure metallurgical bonds for maximum conductivity
- High-speed production – Optimized for volume manufacturing
Intelligent Welding Process Monitoring System Data System
- High Strength: Weld joints reach up to 90% of the base metal strength.
- Energy Efficient: Power factor up to 0.95, saving up to 30% energy.
- Smart Control: 64 programmable procedures for stable and repeatable welding.
- Traceability: Real-time data recording and quality monitoring system.
- Low Maintenance: Modular structure and durable components ensure easy upkeep.
- Customizable: Supports OEM/ODM designs to fit production lines.
64 Programmable Welding Procedures
Digital Traceability - 1 Million Records
Intelligent Digital Control
How to Use? We offer remote 24/7 online video one-on-one guidance.
- Set welding parameters via touchscreen.
- Place copper busbar in the fixture.
- Start diffusion welding.
- Monitor temperature and pressure curve in real-time.
- Inspect the welded joint after cooling
Technical Support And Training
We provide professional, considerate and comprehensive pre-sales, in-sales and after-sales services
to ensure you have no worries in your production!
Customized Solutions
Provide personalized diffusion welding machine configuration solutions based on customer needs to ensure that the equipment meets specific production requirements.
On Site Technical Support
Dispatch professional technical personnel to the customer's site for equipment installation, debugging, and troubleshooting to ensure smooth production.
Operator Training
Provide operator training services to customers, including equipment usage, maintenance, and simple troubleshooting.
Service Commitments
One-Stop Service
Complete support including installation, commissioning, training, and maintenance – all in one solution.
Warranty Coverage
One-year full machine warranty, plus two years for core components such as controllers and transformers.
Comprehensive Training
Free training sessions provided, with optional on-site training available.
Lifetime Software Upgrades
Enjoy lifetime access to free software updates.
Free Technical Support
Unlimited lifetime technical consultation services at no extra cost.
Maintenance Guarantee
Free maintenance during the warranty period, with lifetime service support available.
FAQ
01.How do I choose a diffusion welding equipment that suits my business?
02.What parts can diffusion welding equipment weld?
03.Can you provide me with a solution for a fully automatic diffusion welding machine?
04.Can the machine weld flexible braided connectors?
05.What is the difference between diffusion welding and resistance welding for busbars?
06.What is your shipment term?
- We support FOB shanghai, or CIF customer port.
- Average lead time: 30 days.
- Global delivery available via sea or air freight
Wuxi Haifei Intelligent Equipment Co., Limited is one of the leading manufacturers and suppliers of diffusion welding equipment in China. With abundant experience, we warmly welcome you to buy advanced diffusion welding equipment for sale here from our factory. Quality products and reasonable price are available.
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