HFBP-100 Medium Frequency AC Spot Welding Machine
Technical Specifications
| Item | HFBP-100 Specification |
|---|
| Model | HFBP-100 |
| Equipment Type | Medium Frequency AC Spot Welding Machine |
| Welding Process | Spot Welding / Projection Welding |
| Rated Capacity | 100 kVA |
| Maximum Short-Circuit Current | 30 kA |
| Rated Duty Cycle | 20% |
| Secondary No-Load Voltage | 8.4 V |
| Cooling Water Consumption | 25 L/min |
| Main Applications | Automotive, metal fabrication, electrical components |
| Applicable Materials | Steel, stainless steel, galvanized sheet, aluminum, wire, copper,
silver contacts |
Product Overview
The HFBP-100 Medium Frequency AC Spot Welding Machine is designed
for resistance spot and projection welding applications across
automotive, metal fabrication, and electrical component
manufacturing. With a 100 kVA rated capacity and maximum
short-circuit current of 30 kA, the machine is suitable for welding
high-strength steel, hot-formed steel, low-carbon steel, stainless
steel, galvanized sheet, aluminum, and wire products. Its
application range also extends to resistance brazing and welding of
copper wire, silver contacts, and copper plates.
The HFBP-100 is not limited to one type of sheet-metal application.
It can be configured for different resistance welding processes
according to the material, joint structure, electrode arrangement,
and production requirements.

What Is the HFBP-100 Used For?
The HFBP-100 is a medium-frequency AC spot and projection welding
machine developed for production environments where different metal
joining processes need to be handled with one welding platform.
Its documented applications include:
- Spot welding of high-strength steel
- Spot welding of hot-formed steel
- Nut projection welding
- Low-carbon steel sheet welding
- Stainless steel sheet welding
- Galvanized sheet welding
- Aluminum sheet welding
- Wire spot welding
- Multi-point projection welding
- Copper wire resistance brazing
- Silver contact brazing
- Copper plate brazing
- Composite silver contact welding
This broad application range makes the HFBP-100 particularly
relevant to manufacturers producing different types of metal and
electrical components.
Key Features
100 kVA Rated Capacity
The HFBP-100 has a 100 kVA rated capacity, providing the electrical
capacity required for a broad range of industrial resistance
welding applications. The actual welding conditions should still be
selected according to the material, thickness, joint configuration,
and required production cycle.
30 kA Maximum Short-Circuit Current
The specified maximum short-circuit current is 30 kA. This provides
substantial current capacity for demanding resistance welding
applications. Maximum short-circuit current should not be confused
with the actual current used during every weld. Production welding
current is determined by the specific workpiece and process
parameters.
20% Rated Duty Cycle
The machine has a specified 20% rated load duration. This figure
should be considered when calculating production cycles and
selecting the appropriate cooling and operating conditions for
continuous manufacturing.
8.4 V Secondary No-Load Voltage
The published specification lists a secondary no-load voltage of
8.4 V. This is a machine electrical specification and should be
considered together with the welding transformer, electrode
configuration, workpiece resistance, and actual welding parameters.
Water-Cooled Welding System
The specified cooling-water consumption is 25 L/min. Adequate
cooling is important for stable operation when the machine is used
repeatedly in production.
Applications
Automotive Manufacturing
The HFBP-100 is specifically documented for spot welding
high-strength steel and hot-formed steel used in automotive
manufacturing. Typical applications can include automotive
structural parts, reinforcement components, sheet-metal assemblies,
brackets, and nut-welded components. For automotive production, the
welding fixture and electrode arrangement should be designed
according to the actual part geometry and weld-point layout.
Nut Projection Welding
Nut projection welding is another documented application of the
HFBP-100. The welding process can be arranged around the nut
geometry and the projection design to create the required welded
connection. For automated production, dedicated fixtures can be
developed to control nut positioning and workpiece repeatability.
Galvanized and Stainless Steel Components
The machine can be applied to galvanized sheet and stainless steel,
which are commonly encountered in industrial and fabricated metal
components. Because surface condition and electrical resistance
vary between materials, welding parameters should be established
specifically for the selected material and thickness.
Aluminum Components
Aluminum is also listed among the applicable materials. Aluminum
requires different welding conditions from steel because of its
electrical and thermal characteristics. Electrode selection,
welding current, force, and cycle parameters should therefore be
developed through application testing.
Electrical Components
The HFBP-100 has an additional application range in the electrical
manufacturing sector. The original specification specifically lists
copper wire resistance brazing, copper wire spot welding, silver
contact brazing, copper plate brazing, and composite silver contact
welding. This makes the machine suitable for evaluating
applications beyond conventional sheet-metal resistance welding.
Frequently Asked Questions
What is the HFBP-100?
The HFBP-100 is a 100 kVA medium-frequency AC spot welding machine
designed for spot welding, projection welding, and specified
resistance brazing applications.
Can the HFBP-100 weld high-strength steel?
Yes. High-strength steel and hot-formed steel are specifically
listed among its automotive welding applications.
Can it perform nut projection welding?
Yes. Nut projection welding is one of the documented applications
of the HFBP-100.
Can the machine weld aluminum?
Yes. Aluminum sheet is listed as an applicable material. The final
welding parameters should be established according to the aluminum
grade, thickness, electrode configuration, and required weld
quality.
Can it be used for galvanized steel?
Yes. Galvanized sheet is included in the product's documented
application range.
Can the HFBP-100 weld copper wire?
Yes. The original specification lists copper wire resistance
brazing and spot welding among its electrical-industry
applications.