MFDC Welders

Heron MFDC Spot Welder

Main features

Heron offers MFDC spot welders and projection welders with excellent performance and stability. With unparalleled accuracy in both spot welding and projection welding, it delivers excellent weld quality and substantial cost savings.

A spot resistance welder is an essential solution for fast, reliable sheet metal joining across automotive, fabrication, and industrial applications. It delivers precise heat and pressure to produce strong, clean welds with minimal distortion, ensuring consistent quality and efficient production. As a result, resistance spot welding remains one of the most trusted and cost-effective methods for manufacturers seeking durable, high-quality metal joining.

Advantages of the process
  • Reduces power loss
  • Stable current output
  • Rapid current rise
  • High heating intensity
Sheet metal spot welder

MFDC welding machines from 110KVA to 2500KVA

Heron's selection of MFDC resistance welding solutions ranges from 110KVA to 2500KVA.

Our sheet metal spot welder technology is designed for high-precision spot welding operations, effectively overcoming the challenges of joining high-temperature alloys and dissimilar metals such as copper and steel. Whether for demanding spot welding applications or complex metal joining processes, our sheet metal spot welder solutions provide consistent weld quality, exceptional accuracy, and reliable performance across a wide range of industrial applications.

110~440KVA
E series
220~880KVA
H series
1250~2500KVA
Custom
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E Series MFDC Welder---110/165/220/250/280/330/440KVA
Choose based on your industry application, from a range between 110KVA to 440KVA power supply.
 
 

E series

Features

Our E Series MFDC spot welder and projection welder are equipped with a roller ram and reinforced frame, ensuring optimal spot welding and reliable projection welding results, with a rise in welding current in 3ms and a maximum short-circuit current of 60kA.

Benefits
Reduced power loss, rapid current rise, stable current output, and constant-current control ensure high heating efficiency, enabling higher productivity, greater process stability, and more efficient energy use.
Inquiry

Standard Configurations

Operation

Foot Pedal Start

Control

Heron HRC-802

Components

Heron Round Cylinder (or Small Roller Ram)

SMC Pneumatic Components

IFM Flow Switch and See-through Tube

HRC-802 Programming Panel

Add-Ons

▢ PLC and Touch Screen

▢ Quality Monitor

▢ Safety Grating 

▢ Single or Double-handed Start

▢ Optional Configurations Available on Request

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H Series MFDC Welder---220/250/330/440/500/660/750/880KVA
Choose based on your industry application, from a range between 220KVA to 880KVA power supply.

H series

Features

Our H Series MFDC spot welders and projection welders feature a modular design that simplifies operation and maintenance while ensuring efficient performance. The streamlined, space-saving design maximizes workspace utilization, enhancing productivity in spot welding and projection welding operations. Additionally, our MFDC spot welders and projection welders comply with both European CE and North American CUL standards, delivering superior rigidity and safety for your operations.

Benefits
With features like enhanced stability of welding quality, reduced heat-affected zone, streamlined production, cost-effective solution.
Inquiry

Standard Configurations

Operation

Double-Handed Start

Control

Heron HRC-802

Components

Heron Round Cylinder (or Small Roller Ram)

FESTO Pneumatic Components 

IFM Flow Switch and See-through Tube

HRC-802 Premium Programming Panel

Mitsubishi PLC and 7-inch Kunlun Touchscreen

Add-Ons

▢ Siemens PLC & Touch Screen 

▢ Quality Monitor

▢ Safety Fences

▢ Light Curtain

▢ Other Configurations Available on Request

 

MFDC welder vs AC welders

  • MFDC welders deliver a highly stable direct current waveform, producing minimal power peaks and virtually no spatter during the welding process. This enhances the quality and reliability of welds, ensuring a superior finish every time.
  • MFDC welders are not affected by parts' shape and material, eliminating the challenges of inductance loss often faced in traditional systems. This adaptability makes it a versatile choice for a variety of welding applications.
  • With an energy requirement of only two-thirds that of conventional AC welders, MFDC systems significantly reduce the demand on factory power grids. Their ability to maintain precise control over welding current, even during voltage fluctuations, underscores their efficiency.
  • MFDC welders boast a dramatically reduced weight—only one-third of the AC transformer. This portability is particularly advantageous for robotic welding systems, allowing for greater flexibility and ease of integration into automated environments.
  • Embracing a green approach, MFDC technology eliminates pollution associated with traditional power supplies. The ability to work in harmony with existing robot welding tooling control systems eliminates the need for separate power grids, contributing to a cleaner manufacturing process.
MFDC Discharge Curve

Applications

Industry applications
  • Automotive, electrical and general industry
Application material
  • Non-ferrous metals
  • High-temperature alloys
  • Low-carbon steel
  • Stainless steel
  • High-strength steel
  • Galvanized steel
  • Aluminum alloys

Welding result

  • No sticking of electrodes
  • No cracks or bubbles in the weld nugget.

Video

Get in touch with us

Whether you are looking for a quotation or partnership support, we are happy to assist you.

We offer off-the-shelf/custom Clinching solutions with servo guns, air-oil units; upgrade with monitors, sensors & premium tooling.

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