The HFTD-600 Copper Busbar Diffusion Welding Machine is specifically engineered for copper flexible busbars, laminated copper foils, braided copper connectors, and solid copper busbars. Using advanced solid-state diffusion welding technology, it delivers oxide-free joints, ultra-low contact resistance, and long-term reliability required by power transmission, EV, battery, and industrial electrical systems.
Unlike conventional resistance or brazing processes, diffusion welding forms a true metallurgical bond without melting the copper, ensuring superior electrical and mechanical performance.
cooperative partner
We have served over 5,000+ customers worldwide, and our long-term partners include Tesla, BYD, and Siemens.
Over 50+ Fortune 500 companies.
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
Haifei Customer Site
Why Choose Copper Diffusion Welding?
No Melting, No Weak Points
Diffusion welding joins copper under high pressure and controlled current, avoiding molten pools, porosity, or brittle interfaces.
Ultra-Low Electrical Resistance
Perfect for high-current busbar systems, reducing heat generation and energy loss.
Oxide-Free, Flux-Free Process
No solder, no filler metal, no flux - ideal for clean power and EV applications.
Stable for Thick & Multi-Layer Copper
Designed for thick copper stacks and laminated copper foils, where traditional welding fails.
The core selling point of Busbar Diffusion Welding Machine
Extra-Large Power Output
600KVA rated power, capable of welding large workpieces up to 1000×800mm
Precision Temperature Control
Multi-zone independent temperature control with ±2°C uniformity, ensuring even heating of oversized workpieces
Intelligent Pressure Control
1000-ton hydraulic system with ±0.5% pressure accuracy for precise pressure control
Fully Automatic Vacuum System
Ultimate vacuum up to 5×10-4Pa, ensuring high-quality oxide-free welding
Smart Data Management
Automatic recording of full-process parameters, supporting quality traceability and process optimization
Modular Design
Easy maintenance and upgrades, key component lifespan over 10 years
Typical Applications
Choose the plan that suits you best.
Copper flexible busbar welding
01
Laminated copper foil soft connections
02
Braided copper shunts
03
Power distribution busbars
04
EV battery busbar connections
05
Energy storage systems (ESS)
06
Power transformers & switchgear
07
High-current grounding and earthing copper connectors
08
HFTD-600 Technical Specifications
| Rated Capacity | 600 kVA |
| Power Supply | 380V / 3 Phase / 50Hz |
| Max Primary Current | 800 A |
| Primary Cable Size | 3*150+2*16 |
| Max. Short Current | 58 KA |
| Rated Duty Cycle | 100% |
| Secondary Voltage | 13.8 V |
| Welding Cylinder Size | Φ120 × 150 mm |
| Maximum Working Pressure | 200 / 400 kN |
| Hydraulic / Water Pressure | 0.1 – 0.5 MPa |
| Cooling Water Consumption | 240 L/min |
| Throat Depth | 320 mm |
| Cylinder Stroke | 250 mm |
| Max Copper Platform Spacing | 340 mm |
| Machine Dimensions (L×W×H) | 2100 × 880 × 1385 mm |
| Maximum Welding Range | 200 × 200 × 20 mm |
Designed for Industrial Production
1.Heavy-Duty Frame Structure
Ensures stable pressure distribution during diffusion welding, critical for consistent copper bonding.
2.Precision Hydraulic Pressure Control
Accurate pressure ensures uniform diffusion across all copper layers, even in thick or wide busbars.
3.High-Efficiency Water Cooling System
Supports continuous 100% duty cycle operation, suitable for mass production environments.
4.Intelligent Welding Controller
- Adjustable current, pressure, and welding time
- Recipe-based parameter storage
- Stable and repeatable welding quality
Product Advantages
| Problems Solved | Customer Benefits |
|
Traditional welding cannot achieve high-quality connections for large special materials |
Welding strength reaches 95-100% of base metal |
|
Difficult to control temperature uniformity when welding large workpieces |
Welding deformation controlled within 0.1mm |
|
Special materials are prone to oxidation and contamination during welding |
Welding pass rate increased to 99.8% |
|
Unable to achieve full-process traceability of welding quality |
Equipment ROI period shortened by 30% |
More details about the product
Why Choose Our Busbar Diffusion Welding Machine?
- Technological Leadership: Holds 20 core patents in diffusion welding technology
- Rich Experience: Provided diffusion welding solutions for 50+ high-end manufacturing enterprises
- Reliable Quality: Key components use internationally renowned brands, equipment stability industry-leading
- Complete Service: Provides full-cycle service from solution design to after-sales support
- Continuous Innovation: Invests 15% of annual sales in R&D
Technical Features
Multi-Physics Field Coupling Control
Real-time coordinated control of temperature, pressure, vacuum
Intelligent Process Expert System
AI-based intelligent recommendation of process parameters
Predictive Maintenance System
Equipment health management based on big data analysis
Modular Heating Field Design
Customizable heating modules based on workpiece shape
Get a Customized Solution
Every busbar application is different. Our engineers can help you select or customize the right copper diffusion welding machine based on:
- Copper thickness & layer count
- Busbar size and shape
- Required electrical performance
Production capacity
👉 Contact us now to get technical consultation, videos, and quotation.
FAQ
01.What are the specific power requirements for the 600KVA equipment?
02.What level of vacuum can the system achieve?
03.Do you provide process development services?
04.Does the system support remote monitoring and diagnostics?
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