IGBT Inverter Arc Stud Welder

September 04, 2025

**Product Specifications**
Model NO.: RSN71600
Product Name: Arc Inverter IGBT Stud Welding Machine RSN7-2500
Application: Studs ranging from 10 to 36 (3/16" to 1") for steel construction and rail projects.
Protection: IP23
Weight: 55–98 kg
Working Environment: Dry
Multi-Process: Bolt, Stud, and MMA welding
Accessories: Welding gun, chuck, ceramic ring, etc.
Feature: IGBT technology
Payment Terms: T/T, L/C, etc.
Key Words: Arc Inverter IGBT Stud Welding Machine RSN7-2500
Trademark: IKING IGBT inverter drawn arc stud welder
Transport Package: Sea-worthy plywood cases for the welding machine
Specification: 640 x 420 x 550 cm
Origin: China
HS Code: 8515319900
--- **Product Description** The Arc Inverter IGBT Stud Welding Machine RSN7-2500 is a high-performance welding solution designed for use in steel structure construction, bridges, railways, and other industrial applications. This machine features precise time and current settings, with a resolution of up to 0.01 seconds for welding time and 1 ampere for welding current, ensuring reliable and stable results. Its compact and lightweight design allows continuous operation for 24 hours without interruption. Equipped with anti-misoperation functions, this machine prevents repeated welding on the same spot. It also includes short-circuit and circuit-breaker protection systems to safeguard the control board and ensure smooth restart after troubleshooting. These features contribute to a low failure rate and extended service life. The machine supports multiple welding processes, including stud welding and MMA (Manual Metal Arc) welding. It uses IGBT technology for efficient power conversion, offering energy savings and environmental benefits. The machine is ideal for industries such as steel structures, shipbuilding, chemical, construction, metallurgy, automotive, bridge building, boiler manufacturing, and chassis assembly. --- **Features:** - Lightweight and easy to maintain - Stable and consistent welding quality - Energy-efficient and environmentally friendly - Suitable for a wide range of industries --- **Technical Data:** | Model | SN7-1600 | SN7-1600 | SN7-2500 | SN7-2500 | |-------|----------|----------|----------|----------| | Stud Range | φ5–16mm | φ6–18mm | φ8–20mm | φ10–25mm | | Max Weld Current | 1200A | 1600A | 2000A | 2500A | | Current Range (Stud) | 100–1200A | 100–1600A | 100–2000A | 100–2500A | | Current Range (MMA) | 100–1200A | 100–1600A | 100–2500A | 200–3150A | | Weld Time | 400–3000ms | - | - | - | | Weld Speed | 16pc/M10/min | 16pc/M12/min | 16pc/M18/min | 16pc/φ22/min | | Main Circuit | IGBT | - | - | - | | Control Circuit | PIC/DSP | - | - | - | | Repeat Cycle Lock | Automatic Protection | - | - | - | | Power Supply | 3-phase, 380VAC/50Hz or 60Hz | - | - | - | | Input Voltage Fluctuation | ±10% | - | - | - | | Cable Spec | 1×8+3×10mm² | - | - | - | | Control Cable Spec | 4×1mm² | - | - | - | | Max. Weld Extension Cable | 100m | - | - | - | | Max. Earth Extension Cable | 20m | - | - | - | | Protection | IP23 | - | - | - | | Dimension (mm) | 640×420×550 | 640×440×570 | 640×440×570 | 700×440×800 | | Weight | 55kg | 60kg | 70kg | 70kg | | Multi-function | Stud welding / MMA welding | - | - | - | | Gas Protection | Optional | - | - | - | | Weld Gun | KNQ7B/KNQ9 | - | - | - | | Supply Scope | Welder, welding gun, cable, earth lead, chucks, ferrule holders, spanner, manual | - | - | - | --- **Application** This welding machine is widely used in various fields such as steel construction, railway, bridge building, and more. It is ideal for attaching studs of different sizes to metal surfaces efficiently and accurately. --- **Our Company** CHINA IKING INDUSTRIAL GROUP CO., LTD is one of the leading manufacturers and exporters of stud welding products. With a dedicated shear stud and bolt & nut factory in Tianjin, we offer a wide range of high-quality arc studs, CD studs, and arc welding machines and guns. We also provide custom manufacturing solutions based on customer requirements. All our products meet international standards such as EN ISO 13918, AWS D1.1, JIS B918, and more. Our strict quality control ensures that only qualified products leave our factory. After 27 years of development, we now have 15 production lines and can produce up to 4,000 tons per month. Our commitment to innovation and quality has earned us CE, ISO, and SGS certifications, making us a trusted supplier and partner worldwide. We have established long-term trade relationships with over 50 countries, including Russia, the UK, USA, Germany, Poland, Kuwait, Saudi Arabia, Bangladesh, UAE, Vietnam, and South Africa. --- **Packing Details** Arc Inverter IGBT Stud Welding Machine RSN7-2500: 1. Outer packing: Sea-worthy wooden cases 2. Inner packaging: Machines are wrapped in bubble covers and secured with battens; welding guns and accessories are packed on pallets 3. Packing size: Varies by model 4. Container loading: Varies by model --- **Contact Us** For more information or to place an order, feel free to contact us. We look forward to working with you!

Welding Electrode

WELDING ELECTRODE:


The welding rod is composed of two parts: the welding core and the coating. The welding rod is to apply the coating (drug skin) evenly and centripetally on the welding core outside the metal welding core. Different types of welding rods have different welding cores. The welding core is the metal core of the welding rod. In order to ensure the quality and performance of the weld, there are strict regulations on the content of each metal element in the welding core, especially for the content of harmful impurities (such as sulfur, phosphorus, etc.). Limits, superior to base metal.


Category AWS standard Chemical compostition of deposited metal(wt%)
C Mn Si Cr Ni Mo P S Cu
Carbon Steel E7018 0.150 1.600 0.750 0.200 0.300 0.300 0.035 0.035 -
Stainless Steel E308-16 0.080 0.5-2.5 1.000 18.0-21.0 9.0-11.0 0.750 0.040 0.030 0.750
E308L-16 0.040 0.5-2.5 1.000 18.0-21.0 9.0-11.0 0.750 0.040 0.030 0.750
E309-16 0.150 0.5-2.5 1.000 22.0-25.0 12.0-14.0 0.750 0.040 0.030 0.750
E309L-16 0.040 0.5-2.5 1.000 22.0-25.0 12.0-14.0 0.750 0.040 0.030 0.750
E309LMo-16 0.040 0.5-2.5 1.000 22.0-25.0 12.0-14.0 2.0-3.0 0.040 0.030 0.750
E316L-16 0.040 0.5-2.5 1.000 17.0-20.0 11.0-14.0 2.0-3.0 0.040 0.030 0.750
E347-16 0.080 0.5-2.5 1.000 18.0-21.0 9.0-11.0 0.750 0.040 0.030 0.750
E310-16 0.08-0.20 1.0-2.5 0.750 25.0-28.0 20.0-22.5 0.750 0.030 0.030 0.750
E2209-16 0.040 0.5-2.5 1.000 21.5-23.5 8.5-10.5 2.5-3.5 0.040 0.030 -
Heat Resisting Steel E9015-B3 0.05-0.12 0.900 1.000 2.00-2.50 - 0.9-1.2 0.030 0.030 -
Cast Iron ENi-C1 2.000 2.500 4.000 - ≥85 - - - 2.500
ENiFe-C1 2.000 2.500 4.000 - 45-60 - - 0.030 2.500
Nickel base
Alloy 		ENi-1 0.100 0.750 1.250 - ≥92 - 0.030 0.020 0.250
ENiCrFe-1 0.080 3.500 0.750 13.0-17.0 ≥62 - 0.030 0.015 -
ENiCrFe-2 0.100 1.0-3.5 0.750 13.0-17.0 ≥62 0.5-2.5 0.030 0.020 -


Welding Electrode


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Welding Electrode,Welding Rod,Cast Iron Welding Rod,Arc Welding Rods

JIANGSU FUERMU WELDING CORPORATION , https://www.fuermuwelding.com