ZOC RSN7-2500S Manual Withdrawal Inverter Stud Welder for high-precision Drawn Arc welding of studs from Φ3mm to Φ25mm diameter.

RSN7-2500S Heavy-Duty Inverter Arc Stud Welder (Φ3-25mm) | Ultimate Industrial Power

The RSN7-2500S stands as the most powerful flagship model in the RSN7 series, specifically engineered for ultra-heavy-duty industrial construction. With a maximum welding current of 2500A, it effortlessly handles large-diameter shear studs up to 25mm (1 inch). Powered by advanced IGBT inverter technology, the RSN7-2500S combines massive power output with precise digital control, ensuring high-strength structural integrity in mission-critical projects such as super high-rise buildings, massive bridge frameworks, and heavy shipbuilding.

Φ3-25mm

Welding Range

IGBT Inverter

30%-40% Energy Saving

100% Duty Cycle

Heavy-duty Ready

Advanced Technical Features and Engineering Advantages

  • Flagship Power Output (2500A Max): Designed for the most demanding tasks, it provides a stable 2500A current, allowing for the consistent welding of large-diameter shear studs (up to Φ25mm). It is the ideal choice for heavy-duty floor decks and thick steel plate bonding.

  • High-Load Endurance & Reliability: Built for continuous operation, the internal components are reinforced to handle higher thermal loads. With Class H insulation and an IP23 protection rating, it maintains peak performance during 24/7 construction cycles in harsh environments.

  • Precision Digital Synchronization: The upgraded control system ensures that even at high currents, the arc remains stable with minimal spatter. The digital interface allows for granular adjustment of welding time and current, ensuring every joint meets international structural standards.

  • Intelligent Power Management: Despite its massive power, the IGBT soft-switching technology maintains high energy efficiency. The smart cooling system and wide voltage tolerance (AC 320V-440V) protect the machine from the voltage drops common on large-scale, generator-dependent sites.

Shipbuilding

The ultimate solution for heavy-duty shipbuilding and offshore platforms. Delivers massive 2500A power for deep penetration welding of large-diameter connectors on thick marine plates.

High-rise Buildings

Engineered for skyscraper frameworks and high-intensity steel decks. Ensures 100% duty cycle performance for welding shear connectors in large-scale composite floor structures.

Steel Structures

Heavy-duty stud welding for industrial plants, warehouses, and massive steel frameworks. Provides absolute arc stability and superior bond strength for the most demanding structural integrity requirements.

Bridge Construction

Professional grade welding for heavy shear studs and anchor bolts in bridge engineering. Supports precise welding of studs up to Φ25mm with IP23 weather resistance for reliable outdoor site operation.

Technical information

ParameterSpecification
Welding RangeΦ3mm-Φ25mm
Welding Current200A-2500A
Welding Speed10-30Pieces/minute
Welding MaterialCarbon Steel, Stainless Steel, Aluminum, etc.
Input VoltageAC 3-380V ±15% (50/60Hz)
Rated Input Capacity85KW
Protection LevelIP23
Weightca. 80 kg
Welding Time0.1S-3.0S
External Dimensions850mm×380mm×390mm

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