Product Specifications
| Items/Model | Unit | HFTD-350-Y |
|---|
| Rated capacity | KVA | 350 |
| Power supply | V/Ø/Hz | 380V±10% / 3 phases / 50Hz |
| Rated duty cycle | % | 100% |
| Primary current Max. | A | 400 |
| Primary cable | mm² | 3*70+2*16 |
| Short-circuit current Max. | KA | 58 |
| Secondary voltage | V | 13.8 |
| Hydraulic cylinder | Ø*L | Ø120*250 |
| Working pressure Max. (0.5/10.5MPa) | KN | 200/400 |
| Cooling water demand | / | 0.2～0.3MPa,40 micron filtration, Resistivity of 5 kΩ.cm |
| Cooling water consumption | L/Min | 240 |
| Throat depth | mm | 320 |
| Distance between copper plates | mm | 340 |
| Working environment | / | temperature: 1～45℃ humidity: 35～90％ |
Product Overview
The HFTD-350-Y Copper Foil Welding Machine is engineered for
diffusion welding of conductive metal components including copper
busbars, copper bars, copper-nickel connectors, and laminated
copper foil flexible connectors. This industrial welding system is
specifically designed for applications in new energy, power
equipment, energy storage, and related industries.
Compared to standard copper welding equipment, the HFTD-350-Y
excels in project evaluation involving larger copper parts, wide
copper flexible connectors, special-shaped copper busbars, and
copper-nickel conductive components. For conductive copper parts,
the critical challenge extends beyond basic weldability to include
weld area uniformity, pressure stability, complete layer bonding,
and prevention of local overheating during long-term current
transmission.
For projects involving copper busbars, laminated copper foil
connectors, copper-nickel transition parts, or customized copper
conductive assemblies, customers can provide workpiece drawings,
material thickness specifications, weld area requirements, and
testing criteria. Haifei evaluates equipment configuration, tooling
solutions, and sample welding feasibility based on specific
application requirements.
Problem-Solving Capabilities
Uneven Bonding on Large Copper Welding Areas
When welding copper busbars, copper bars, or wide flexible
connectors, uneven pressing can result in proper bonding in some
areas while edges remain insufficiently bonded. The HFTD-350-Y
addresses copper diffusion welding projects requiring stable
pressing and larger contact areas, enhancing consistency across the
entire welded surface.
Unstable Interlayer Bonding in Laminated Copper Foil Connectors
Multi-layer copper foil flexible connectors are sensitive to
pressure, temperature, and welding time parameters. As layer count
increases, issues like weak bonding, delamination, loose edges, or
insufficient peel strength may occur. This machine can be matched
with appropriate tooling based on foil layer count, welding width,
and product dimensions to enhance weld area controllability.
Difficult Positioning of Special-Shaped Copper Busbars or
Copper-Nickel Parts
Conductive parts used in new energy and energy storage systems
often feature complex geometries including bends, holes, terminal
areas, or mixed-material structures. The HFTD-350-Y can be
configured with positioning references, pressing structures, and
optimized loading methods according to workpiece shape, reducing
welding variation caused by inaccurate clamping.
Appearance and Performance Variation in Batch Production
Conductive copper parts require evaluation beyond weld strength to
include appearance, electrical performance, temperature-rise
behavior, and batch consistency. For long-term supply projects,
stable tooling, controlled parameters, and thorough sample
verification prove more critical than single successful welds.
Key Product Features
- Designed for Wide Conductive Copper Parts: Suitable for welding copper busbars, copper bars, laminated copper
foil flexible connectors, copper-nickel connectors, and related
conductive metal components. For parts with larger weld areas,
wider dimensions, or stricter pressing requirements, the machine
can be matched with appropriate pressing heads, fixtures, and
welding parameters.
- Focuses on Pressing Consistency in the Weld Area: Copper diffusion welding quality heavily depends on the balance
between temperature, pressure, and contact surface condition.
Uneven pressing can cause weak bonding or unstable electrical
performance even with correct parameter settings. The HFTD-350-Y
works optimally with dedicated tooling to maintain consistent weld
position, pressing direction, and contact area.
- Suitable for Copper-Nickel Process Verification: Copper-nickel connectors are commonly used in batteries,
electrical terminals, and new energy conductive structures. Given
the different material properties of copper and nickel, bonding
inconsistency or strength variation may occur during welding. This
machine supports sample testing based on copper-nickel thickness,
joint area, and performance requirements to help define suitable
process parameters.
- Supports Conductive Parts for New Energy, Power, and Energy Storage
Applications: Ideal for copper conductive connectors used in new energy, power
equipment, and energy storage industries. For parts carrying
current over extended periods, stable welded contact surfaces help
reduce contact resistance variation and minimize local overheating
risks.
Typical Applications
- Wide Laminated Copper Foil Flexible Connectors: Suitable for multi-layer copper foil flexible connectors, flexible
conductive sheets, and battery flexible connectors. For wide,
multi-layer, flexible structures, the system controls interlayer
bonding, indentation, loose edges, and peel strength.
- Copper Busbar Connectors for Energy Storage Systems: Energy storage systems frequently utilize copper busbars,
current-collecting busbars, and flexible connection structures. The
HFTD-350-Y evaluates diffusion welding processes for these
conductive connectors and improves batch welding consistency.
- Conductive Parts for New Energy Batteries: Suitable for copper busbars, copper foil connecting sheets,
copper-nickel connecting sheets, and high-current conductive
components in battery modules. Weld quality directly affects
electrical stability, temperature-rise performance, and long-term
reliability.
- Copper Bars and Busbars for Power Equipment: Used for copper bars, copper busbars, and conductive connectors in
distribution cabinets, switchgear, and busbar systems. For
high-current applications, stable welded contact surfaces help
reduce overheating during operation.
- Copper-Nickel Dissimilar Metal Connectors: Suitable for copper-nickel sheets, copper-nickel conductive parts,
and battery connection pieces. Customers should provide material
combinations, thickness specifications, weld area requirements, and
testing criteria for process feasibility confirmation through
sample welding.
- Non-Standard Copper Conductive Assemblies: For copper conductive parts with bends, holes, special shapes, or
specific assembly requirements, dedicated tooling and pressing
solutions can be designed to improve welding stability and
operational efficiency.
Product Advantages
- More Controllable Welding for Wide Copper Parts: The primary challenge in welding wide copper parts involves
ensuring uniform pressure across the entire contact area. With
customized pressing heads and fixtures, the HFTD-350-Y stabilizes
the weld surface and reduces local weak bonding or insufficient
edge bonding.
- Improves Delamination Issues in Multi-Layer Copper Foils: When some layers in laminated copper foil connectors lack proper
bonding, peel strength and electrical performance can be
compromised. By optimizing pressure, temperature, time, and tooling
parameters, the machine enhances interlayer bonding and reduces
delamination or weak joints.
- Reduces Overheating Risks in Conductive Copper Parts: Welding quality of copper busbars and copper flexible connectors
directly impacts contact resistance. Diffusion welding creates
stable joints over larger contact areas, helping minimize local
temperature rise caused by poor contact. Final results should be
verified through contact resistance, temperature-rise, or
current-carrying tests.
Frequently Asked Questions
What products is the HFTD-350-Y suitable for?
The HFTD-350-Y is suitable for copper busbars, copper bars,
laminated copper foil flexible connectors, copper-nickel
connectors, wide conductive copper parts, and special-shaped copper
conductive assemblies. It is commonly used in new energy, power
equipment, and energy storage applications.
How is this machine different from the HFTD-150-Y?
The HFTD-350-Y is better suited for project evaluation involving
larger copper parts, wider welding areas, and customized tooling.
The HFTD-150-Y is more suitable for standard copper parts or
medium-size laminated copper foil connector projects.
Can it weld multi-layer copper foil flexible connectors?
It can be evaluated for this application. Multi-layer copper foil
welding requires confirmation of layer count, thickness, welding
width, peel strength, and appearance requirements. Sample welding
is recommended.
Can this machine weld copper-nickel connectors?
Yes. It can be evaluated for copper-nickel connector welding. Since
copper and nickel have different material properties, process
parameters should be confirmed according to material thickness,
weld area, and electrical requirements.
Inquiry Guidance
If your product involves wide copper busbars, laminated copper foil
flexible connectors, copper-nickel connectors, conductive parts for
energy storage systems, or special-shaped copper conductive
assemblies, the HFTD-350-Y Copper Diffusion Welding Machine can be
evaluated as a project solution.
You can submit workpiece drawings, sample photos, material
thickness specifications, weld area requirements, peel strength
criteria, electrical testing requirements, and production capacity
targets. Haifei evaluates actual products, arranges sample welding,
designs tooling solutions, and recommends equipment configurations
suitable for mass production.
