The HFDB-50 is an industrial-grade MFDC spot welding machine engineered for high-precision metal joining. With a 18KA short-circuit current and 80KVA capacity, it specializes in welding challenging materials like galvanized steel, copper busbars, and aluminum alloys. It is the ideal choice for automotive and energy storage manufacturing where zero-defect quality is mandatory.
Certifications
40+ Patents and 2 National Software Copyrights, 10,000㎡ Factory with 100+ skilled employees.
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
Why choose HFDB-50? - Solving core pain points
Uniform Weld Nuggets
Unlike traditional AC welders, MFDC technology provides stable DC output, eliminating "cold welds."
30% Energy Saving
Higher power factor (95%) reduces operational costs and grid impact.
Minimal Spatter
Precise millisecond-level current control ensures a clean surface finish, reducing post-weld cleaning time.
Dissimilar Metal Joining
Successfully weld copper-to-aluminum or titanium-to-steel with minimal Heat Affected Zone (HAZ).
Industry Applications
Automotive
Nut and bolt projection welding on high-strength steel frames.
EV Battery
Copper busbar connections and battery tab welding.
Electrical
Low voltage switchgear and contactor components.
| Welder Model | Rated Capacity | Power Supply | Maximum primary current | Primary cable specifications | Maximum short-circuit current | Duty cycle | Secondary voltage | Cylinder specifications | Maximum working pressure |
|
KVA |
V/Φ/HZ |
A |
MM2 |
KA |
% |
V |
Φ*L |
KN |
|
|
HFDB-50 |
80 |
380/3/50 |
45 |
3*16+2*6 |
18 |
20 |
9 |
Φ125*80 |
6000 |
Medium Frequency Welding Machine Vs Industrial Frequency Welding Machine
Why medium frequency welding machine is better choice?
01
More precise
Adopting microcomputer control, it can control and analyse welding parameters more accurately, quickly and comprehensively;
02
More power saving
Power factor up to 95%, energy saving of more than 30% by comparison
03
More stable
Welding is virtually spatter-free, while welding is more stable and efficient
04
Wider
It is possible to weld not only ordinary carbon steel plates, but also stainless steel plates, thermoformed plates, galvanised plates, as well as to achieve the welding of copper, aluminium, nickel and silver contacts.
Why Choose Us
Haifei was established in 2009. After 15 years of development, it has become one of the important companies in the metal welding equipment industry.
The market share exceeds 5,000 units, and the market share ranks among the top three in the country.
We have our own R&D services and team to provide customers with different solutions .
CONTACT US NOW FOR A FREE PROCESS ASSESSMENT
▶Submit your workpiece drawings or process requirements
▶Get custom welding solutions and quotes
▶Arrange sample production services
▶📩Contact us via form / WhatsApp / phone / email
FAQ
Q: What is the advantage of MFDC vs AC spot welding?
A: MFDC offers better heat control, higher energy efficiency, and more consistent weld quality for thin or coated materials.
Q: Can this machine be integrated into a robotic arm?
A: Yes, the HFDB-50 controller supports various communication protocols for seamless robotic integration.
Wuxi Haifei Intelligent Equipment Co., Limited is one of the leading manufacturers and suppliers of spot welding machine in China. With abundant experience, we warmly welcome you to buy advanced spot welding machine for sale here from our factory. Quality products and reasonable price are available.
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