RSN SERIES | SCR-CONTROLLED STUD WELDERS
Thyristor Stud Welding Machines
Engineered for shear stud welding in structural steel, bridge construction, and metal decking, the RSN Series features SCR current control, adjustable welding parameters, and voltage compensation. Available in four models for Φ4–Φ30 mm studs, with welding currents up to 3150A depending on the model.
What Is a Thyristor Stud Welding Machine?
A thyristor stud welding machine uses silicon-controlled rectifier (SCR) technology to regulate welding current during the stud welding process. ZOC’s RSN Series is designed for welding shear studs and other compatible fasteners in structural steel fabrication, bridge construction, and metal decking applications.
Featuring adjustable welding current and time, digital parameter displays, and input voltage compensation, these SCR stud welders provide flexible control for different welding requirements. The series includes four models supporting stud diameters from Φ4 to Φ30 mm, with welding currents up to 3150A, depending on the model.
3150A
Max Welding Current
Up to 3150A output for large-diameter stud welding, depending on the RSN model.
Ø4-30 mm
Stud Diameter Range
Four RSN models support stud diameters from Φ4 to Φ30 mm for different welding requirements.
4 Models
RSN Series Options
Choose from RSN-1600, RSN-2000, RSN-2500, and RSN-3150 to match your project requirements.
RSN Series Thyristor Stud Welders
Explore ZOC’s RSN Series SCR-controlled stud welding machines, available in four models for structural steel and shear stud welding applications. Compare specifications to select the right model for your project.
RSN Series Technical Specifications & Model Comparison
Compare four ZOC RSN Series SCR-controlled stud welders by welding range, current output, rated input power, and weight. The specifications below help contractors and equipment buyers select a suitable thyristor stud welding machine for different stud sizes and project requirements.
| Model | Welding Range | Welding Current | Rated Input Capacity | Net Weight |
|---|---|---|---|---|
| RSN-1600 | Φ4-20 mm | 300-1600 A | 65 KW | 320 kg |
| RSN-2000 | Φ4-24 mm | 300-2000 A | 80 KW | 380 kg |
| RSN-2500 | Φ4-28 mm | 300A-2500 A | 100 KW | 410 kg |
| RSN-3150 | Φ4-30 mm | 300A-3150 A | 120 KW | 450 kg |
Standard Input Voltage: Three-phase AC 380V ±10%. Other voltage configurations, including 415V, 440V, and 460V, are available upon request.
Need Help Choosing the Right RSN Model?
Share your stud diameter, base material, and available power supply. Our team can help you select a suitable RSN thyristor stud welder for your project.
Key Features of RSN Thyristor Stud Welders
ZOC RSN Series thyristor stud welders combine SCR current control, adjustable welding parameters, and voltage compensation for structural steel and industrial welding applications. Explore six key features of these heavy-duty welding systems.
SCR Thyristor Current Control
Uses silicon-controlled rectifier (SCR) technology to regulate welding current, providing controlled power output for shear stud welding and other compatible industrial applications.
Adjustable Welding Parameters
Features stepless adjustment of welding current and time, with digital displays showing welding parameters and input voltage for convenient monitoring and operation.
Input Voltage Compensation
Built-in voltage compensation helps maintain welding settings during power fluctuations, although maximum available welding current may decrease when input voltage becomes too low.
Protected Electronics & Housing
Circuit boards receive moisture, dust, and corrosion-resistant treatments, while the coated steel housing provides additional protection for demanding industrial working environments.
Manual & Automatic Control
Supports manual and automatic control modes, allowing operators to configure the welding system for different production workflows and project requirements.
Galvanized Deck Welding
Designed to support shear stud welding through galvanized floor decking where the stud size, deck conditions, and approved welding procedure permit.
Applications of RSN Thyristor Stud Welders
ZOC RSN Series thyristor stud welding machines are used in structural steel construction, bridges, metal decking, and heavy industrial fabrication. Explore typical applications and select suitable equipment based on stud size, base material, and project requirements.
Steel Structures & High-Rise Buildings
RSN thyristor welders are used to attach headed shear studs to structural steel beams in commercial buildings, industrial workshops, and high-rise construction, supporting steel-concrete composite structures.
Bridge & Infrastructure Construction
Suitable for welding shear connectors onto steel bridge girders in highway and railway projects. Select the RSN model according to stud diameter, base metal thickness, and approved welding procedures.
Composite Floor Decking
Supports shear stud welding through galvanized steel decking where permitted by project specifications. Proper stud selection, deck profile, and welding parameters are essential for reliable connections.
Shipbuilding & Heavy Steel Fabrication
Provides SCR-controlled stud welding for fastening applications in shipyards, steel workshops, and heavy fabrication. Equipment selection depends on stud type, material specifications, and welding requirements.
Compatible Welding Consumables: Explore our shear studs and ceramic ferrules for suitable drawn arc stud welding applications.
Common Site Welding Challenges & RSN Thyristor Solutions
Structural steel projects often involve large shear studs, fluctuating jobsite power, and galvanized floor decking. ZOC RSN Series SCR stud welders offer adjustable welding controls and voltage compensation to address these challenges when properly configured.
Large-Diameter Stud Welding Quality
Large shear studs require suitable welding current, timing, and gun settings. Incorrect parameters may cause incomplete fusion, irregular weld collars, or failures during weld inspections.
RSN Model & Parameter Matching
The RSN Series provides adjustable welding current and time across four models. Select the right machine for your stud diameter and verify welding parameters through trial welds and inspections.
Compare RSN Model Specifications
Variable Power Supply Conditions
Construction sites may rely on generators or unstable power supplies. Voltage fluctuations can affect welding performance, especially when welding large-diameter studs at high current settings.
SCR Voltage Compensation
Built-in voltage compensation helps maintain welding parameters during moderate supply fluctuations. Proper input voltage, generator capacity, and power connections remain essential for reliable operation.
Through-Deck Welding Difficulties
Welding shear studs through galvanized steel decking requires suitable stud selection and welding conditions. Poor deck contact or incorrect parameters can increase the risk of incomplete fusion.
Controlled Galvanized Deck Welding
The RSN Series supports through-deck shear stud welding under suitable conditions. Match the deck thickness, stud specifications, and welding parameters, then verify weld quality according to project requirements.
Customer Feedback on RSN Thyristor Stud Welders
RSN Thyristor Stud Welding Machine FAQs
Find answers to common questions about ZOC RSN Series thyristor stud welding machines, including model selection, power requirements, welding applications, and equipment configuration.
The RSN-1600 supports stud diameters up to Φ20 mm, RSN-2000 up to Φ24 mm, RSN-2500 up to Φ28 mm, and RSN-3150 up to Φ30 mm. Select a model based on stud size, base material, and project requirements.
The standard input is three-phase AC 380V ±10%. Customized voltage options, including 415V, 440V, and 460V, are available upon request. Please confirm your local power supply specifications before ordering.
RSN machines may operate with suitable generators when the voltage, power capacity, and supply characteristics meet equipment requirements. Built-in voltage compensation helps manage moderate fluctuations, but proper generator sizing remains essential.
Yes, the RSN Series supports through-deck shear stud welding under suitable conditions. Stud dimensions, decking thickness, surface contact, and welding parameters must be matched and verified through trial welds.
RSN machines have an IP23 protection rating and treated circuit boards for industrial environments. However, they are not waterproof and should be protected from direct rain, standing water, and excessive dust.
Compatibility depends on the RSN model, stud diameter, electrical connections, and welding requirements. ZOC can help match suitable stud welding guns, cables, chucks, and welding consumables.
Please provide your required stud diameter and length, base material, available power supply, project application, and equipment quantity. Our team can recommend a suitable RSN model and accessory configuration.
Request a Quote for RSN Thyristor Stud Welders
Looking for an RSN Series thyristor stud welding machine? Share your stud diameter, welding application, power supply requirements, and quantity. Our team will help you select a suitable SCR stud welder and accessories, and provide a quotation within 12–24 hours.
