Product Specifications
| 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 |
Product Description
The HFDB-50 is a high-performance Medium Frequency Direct Current
(MFDC) spot welding machine engineered for high-precision metal
joining. Featuring an 80KVA power rating and a 18KA short-circuit
current, the system utilizes advanced inverter technology to
deliver millisecond-level precision and stable heat input. Beyond
standard stainless and carbon steel, it excels in joining
non-ferrous metals and alloys, including copper, silver, and
nickel. Specifically optimized for the automotive manufacturing
sector, the HFDB-50 ensures superior weld nugget consistency and
joint strength for hot-stamped steel, high-strength steel (HSS),
and galvanized sheets, as well as high-torque projection welding
for nuts and bolts.
Core advantages of the product
1.Uniform Weld Nuggets
Unlike traditional AC welders, MFDC technology provides stable DC
output, eliminating "cold welds."
2.30% Energy Saving
Higher power factor (95%) reduces operational costs and grid
impact.
3.Minimal Spatter
Precise millisecond-level current control ensures a clean surface
finish, reducing post-weld cleaning time.
4.Dissimilar Metal Joining
Successfully weld copper-to-aluminum or titanium-to-steel with
minimal Heat Affected Zone (HAZ).
Industry Applications
1. Automotive and Auto Parts Manufacturing
Body-in-White (BIW) Components: Precision spot welding for
Hot-Stamped Steel and Advanced High-Strength Steel (AHSS).
Fastener Projection Welding: High-torque welding of nuts and bolts
onto chassis and door components.
Interior Components: Reliable joining of car seat rails, pillars,
and reinforcement brackets.
Galvanized Sheet Processing: Optimized current control to minimize
spatter and ensure consistent weld nuggets on coated surfaces.
2. New Energy and Power Equipment
Wire Harness Terminals: Precision welding of copper wire harnesses
to terminal connectors.
Conductive Connectors: Joining of Copper Busbars, silver contacts,
and various copper/nickel-based alloys.
Energy Storage Systems: Structural assembly of battery packs,
busbar interconnections, and relay components.
3. Precision Electronics and Industrial Hardware
Compressor Components: Spot welding of compressor terminals,
brackets, and housing assemblies.
Precision Hardware: Fabrication of instrument components and
stainless steel structural parts.
Dissimilar Metal Joining: Reliable bonding of specialized
combinations such as copper-to-steel or nickel-to-copper.
Why Choose the HFDB-50?
1.Precision MFDC Technology
Utilizes advanced 1000Hz inverter technology to deliver stable DC
output. It achieves millisecond-level current control,
significantly reducing spatter and ensuring superior weld nugget
integrity.
2.Superior Multi-Material Capability
Engineered for excellence beyond standard steel. It is the ideal
solution for high-conductivity
non-ferrous metals (Copper, Silver, Nickel) and high-strength
automotive steels (AHSS/Hot-stamped steel).
3.High Energy Efficiency
The three-phase balanced load and high power factor (up to 0.9)
reduce energy consumption and localized power grid impact, lowering
your long-term operational costs.
4.Automotive-Grade Reliability
Specifically optimized for high-torque projection welding
(nuts/bolts). It delivers the consistent penetration and strength
required to meet rigorous global automotive safety standards.
FAQ
Q1: What are the main benefits of MFDC over traditional AC welders?
A: MFDC technology provides stable DC output and millisecond-level
precision. It ensures higher energy efficiency, minimal spatter,
and superior weld consistency compared to AC models.
Q2: Can the HFDB-50 weld high-conductivity metals like copper?
A: Yes. Its high energy density and concentrated heat input make it
ideal for copper, silver, and nickel alloys, ensuring strong bonds
without damaging the material.
Q3: Is this machine suitable for automotive high-strength steel
(HSS)?
A: Definitely. It is specifically designed for hot-stamped steel and
AHSS, providing the stable penetration required to meet strict
automotive safety and strength standards.
Q4: How does it perform in nut and bolt projection welding?
A: The HFDB-50 features a rapid current rise time that ensures
uniform projection collapse. This results in high-torque resistance
and consistent quality in every fastener joint.
Q5: Is the HFDB-50 easy to integrate into automated lines?
A: Yes. It is automation-ready with standard PLC/IO interfaces,
making it easy to sync with industrial robots or automated
production cells for high-speed operation.
