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Inverter Submerged Arc Welding Power Source with 100% Duty Cycle, Dual Closed-Loop Circuit, and 3-Phase 380V Input for Heavy Steel Structures

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Inverter Submerged Arc Welding Power Source with 100% Duty Cycle, Dual Closed-Loop Circuit, and 3-Phase 380V Input for Heavy Steel Structures

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Brand Name : Shunyao Supply Chain

Certification : CE,ISO

Place of Origin : Chengdu , China

MOQ : 1 PCS

Price : $699-5,999

Payment Terms : T/T

Supply Ability : Excellent

Delivery Time : 5-15 Days

Packaging Details : Bundles

Input Power : 3-Phase 380V, 50/60Hz

Rated Input Capacity : 55 kVA / 73 kVA

Output Current Range : 100 - 1000 A / 100 - 1250 A

Output Voltage Range : 24 - 44 V

Rated Duty Cycle : 100% Continuous

Open Circuit Voltage : 78 V

Suitable Wire Diameter : 3.0 / 4.0 / 5.0 mm / 3.0 / 4.0 / 5.0 / 6.0 mm

Cooling Method : Forced Air / Fan Cooling

Protection Rating : IP21S

Net Weight : 81 kg / 85 kg

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Inverter Submerged Arc Welding (SAW) DC Power Source - ZD5-1000 / ZD5-1250
Application Overview

The ZD5 Series (ZD5-1000 / ZD5-1250) is our premium inverter Submerged Arc Welding (SAW) DC power source designed for heavy industrial applications. If your factory is welding thick plates for heavy steel structures, bridge beams, pressure vessels, or wind towers, you need a power source that can run massive currents 24/7 without performance degradation.

By upgrading to our full-bridge soft-switch inverter system, this machine reduces electricity usage by 30% compared to traditional thyristor/transformer welders. The energy efficiency delivers rapid return on investment through significant utility savings.

Key Operational Benefits
  • Rock-Solid Arc, 100% Duty Cycle: Rated for true 100% duty cycle at 1000A or 1250A. Operate continuously on multi-meter-long structural seams without thermal shutdown.
  • Stable Performance During Grid Fluctuations: Dual closed-loop circuitry monitors and compensates for voltage variations in your factory's main power line, maintaining steady arc performance even with ±10% grid fluctuations.
  • Consistent Ignition & Deep Penetration: Provides perfect arc strike every time with minimal spatter. Creates highly consistent, deep welding pools that meet structural X-ray testing standards on the first pass.
  • Advanced Protection Systems: Built-in automatic sensors protect against over-current, overheating, under-voltage, and phase loss. Safely shuts down during phase loss to prevent internal circuit damage.
Technical Specifications
Technical Parameters ZD5-1000 ZD5-1250
Input Power 3-Phase 380V, 50/60Hz 3-Phase 380V, 50/60Hz
Rated Input Capacity 55 kVA 73 kVA
Output Current Range 100 - 1000 A 100 - 1250 A
Output Voltage Range 24 - 44 V 24 - 44 V
Rated Duty Cycle (40 °C) 100% Continuous 100% Continuous
Open Circuit Voltage (OCV) 78 V 78 V
Suitable Wire Diameter 3.0 / 4.0 / 5.0 mm 3.0 / 4.0 / 5.0 / 6.0 mm
Cooling Method Forced Air / Fan Cooling Forced Air / Fan Cooling
Protection Rating IP21S IP21S
Machine Size (mm) 710 x 340 x 670 710 x 340 x 670
Net Weight 81 kg 85 kg
Frequently Asked Questions
Can this power source connect directly to our existing gantry welding systems or manipulators?
Yes. The ZD5 series comes with standard analog control interfaces. It connects directly to standard H-beam gantry welding lines, column-and-boom setups, and automated welding tractors without requiring custom modifications.
What happens if the machine overheats during non-stop summer shifts?
The machine is rated for 100% continuous duty cycle, supported by heavy forced air cooling. If dust blocks ventilation and temperatures exceed safe levels, the internal thermal sensor immediately cuts current to protect the main board while maintaining fan operation for rapid cooling.
How thick of a steel wire can the ZD5-1250 run?
The ZD5-1000 model handles up to 5.0 mm wire, while the heavy-duty ZD5-1250 model efficiently operates with wire diameters from 3.0 mm up to 6.0 mm, providing massive deposition rates for ultra-thick plate applications.

Product Tags:

Submerged Arc Welding Power Source

      

Dual Closed-Loop Welding Power Source

      

3 Phase Welding Power Source

      
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