MFDC Resistance Welding Machine
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55KVA-440KVA MFDC Spot & Projection Welder (Stationary Spot Welder, Projection Welder)

Low configuration MFDC resistance welding machine E series
Rubber Extruder Rubber Extruder Rubber Extruder Rubber Extruder Rubber Extruder
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Application
Low configuration MFDC resistance welding machines are primarily used for spot welding and projection welding processes, such as the welding of carbon steel, stainless steel, aluminum, copper and other alloys.

Feature
  • The resistance welding machine power ranges between 55KVA to 440KVA.
  • The maximum short circuit current of our welding machine ranges between 18KA to 60KA.
  • At an air pressure of 6bar, the welding pressure of our welder ranges between 2510N to 15000N.
  • A circular shaft guiderail pressure welding head is standard for this type of welding equipment. The effective throat depth is 950mm.
  • A one-stroke cylinder is a standard configuration for our welding machine, however, as a double stroke cylinder and servo electric cylinder are both compatible, customers can choose from those as well.
Benefits
  • High-Efficiency Precision Welding
    With a short-circuit current of up to 60 kA, 5ms response time, and ±3% current control accuracy, this resistance welder is suitable for high-precision projection welding applications.
  • Smart & Fast Integration
    Standard PROFINET industrial fieldbus support enables efficient integration into automated production lines and digital welding workshops.
  • Intelligent Maintenance System
    With a full-time CRM after-sales system and AI work order scheduling, supporting rapid fault response, remote diagnosis, and repair. This reduces equipment downtime losses and lowers maintenance costs.
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Technical parameter
Model # DB-55 DB-110 DB-165 DB-220 DB-250 DB-330 DB-440
Rated Capacity KVA 55 110 165 220 250 330 440
Power Supply V/Φ/Hz 380V/3Φ/50Hz
Max. Primary Current A 63 100 120 150 150 240 350
Primary Cable MM2 3*16+2*6 3*25+2*16 3*35+2*16 3*35+2*16 3*35+2*16 3*50+2*16 3*50+2*16
Max. Short Circuit Current KA 18 24 30 40 45 58 59.9
Rated Duty Cycle % 20 20 20 20 20 20 20
Secondary Empty Voltage V 8.9 10.4 13 10.4 12.5 13 10.4
Welding Cylinder Size Φ*L Φ100*60 Φ125/100 Φ140*100 Φ140*100 Φ200*100 Φ200*100 Φ200*100
Max. Working Pressure N 3851 6027 7546 7546 15395.8 15395.8 15395.8
Throat Depth MM 373 424 444 444 511 511 511
Arm Gap MM 329 410 424.5 424.5 524 524 524
Dimensions H(MM) 1541 1758 1800 1800 1900 1900 1900
L(MM) 903 1009 1159 1159 1229 1229 1229
W(MM) 687 767 766 766 828 828 828
Core Component Advantages
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Stable & Reliable Welding Power Supply

High-power rectifier modules and transformers are designed to maintain stable output under long-term full-load operation, while minimizing lifecycle maintenance requirements.

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Robust Welding Cabinet Structure

Heron’s patented mechanical structure improves dynamic load rigidity and fatigue resistance.

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Fast Maintenance Design

The modular water and air circuit design, combined with safety protection, helps reduce maintenance time while ensuring safe operation.

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Simplified Intelligent Control

Equipped with an industrial-grade touchscreen and an intuitive guided interface for user-friendly operation.

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Improved Space Efficiency

The compact structure and optimized internal layout improve space utilization.

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Heron is engaged in making resistance welding system, is an experienced 55KVA-440KVA MFDC resistance welding machine manufacturer and welding solution provider. Since 1997 we have been offering wide range of MFDC stationary resistance spot welders, resistance seam welders, MFDC resistance projection welding machines and robotic welding system for global customers.
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