The Innershield welding gun is a semiautomatic air-cooled self-shielded gun for flux-cored arc welding (FCAW-S). Part of the Magnum Classic series, these guns deliver rugged, reliable performance in a lightweight, flexible design that supports extended use in demanding environments. A reinforced rubber jacket protects the cable and enhances durability, while alternate gun tubes enable access to hard-to-reach welds.
Heavy-duty gun trigger switches provide positive electrical contact and extended service life. Select models feature stainless-steel heat-resistant gun tubes with spatter resistance, replaceable liner systems, and interchangeable gun connectors. Superior trigger lead protection comes from integrated leads in a coaxial cable design.
Rated amperage spans 350 to 600 amps across models, all operating at a 60% duty cycle meeting NEMA specification EW3. The guns handle wire diameters from 0.062 to 0.120 inches. Configuration options include 10 or 15-foot cable lengths and gun tube angles of 45°, 62°, or 82°, with some models offering adjustable grip angles or straight tubes. Compatible with LN-7, LN-8, LN-9, and LN-25 series wire feeders.
These guns serve construction, field erection, structural fabrication, and structural welding applications. Included components vary by model but may consist of contact tips, tip holders, insulators, gun tubes, liners, and gun connectors. A 90-day warranty covers defects in materials and workmanship.
Trusted Innershield Welding Gun Manufacturer
RAX Industrial guns for Innershield welding are a great choice. Our philosophy centers on rugged reliability combined with lightweight maneuverability, ensuring tools that withstand the toughest job sites. The Innershield Welding Gun is engineered to be the industry standard for flux-cored arc welding, offering models rated from 350 to 600 amps with a 60% duty cycle to meet NEMA EW3 specifications. These semiautomatic, air-cooled guns feature heavy-duty trigger switches for positive contact, reinforced jackets for long cable life, and multiple gun tube angles for access to confined spaces.
This product excellence is a direct result of our company’s integrated capabilities. Founded in 1999 with over 20 years of experience and an 18,000 m² manufacturing facility, our dedicated team of 50+ R&D specialists leverages high-precision automation to produce over 270,000 welding torch sets annually. Our Innershield Welding Guns support professionals in heavy fabrication, structural steel work, and field projects requiring reliable, high-amperage performance.
Connect with RAX Industrial today for expert advice on selecting the right Innershield Welding Gun for your industrial applications.
| Parameter | Specification |
|---|---|
| Process | Flux-Cored Arc Welding, Self-Shielded (FCAW-S) |
| Operation | Semiautomatic, Air-Cooled |
| Rated Amperage Range | 350 – 600 A |
| Duty Cycle | 60% (NEMA EW3) |
| Wire Diameter Range | 0.062 in – 0.120 in (5/64 in – .120 in) |
| Cable Length Options | 10 ft or 15 ft |
| Gun Tube Angle Options | 62°, 82°, or 45°; Straight tube available on select models |
| Key Features | Heavy-duty trigger switch; Reinforced rubber jacket; Stainless steel, spatter-resistant gun tubes; Available alternate gun tubes for limited access; Replaceable liner system (select models); Interchangeable gun connectors (select models). |
| Compatible Feeders | LN-7, LN-8, LN-9, and LN-25 series |
| Typical Application | Construction, Field Erection, Structural Fabrication, Structural Welding |
| Warranty | 90 Days |
Frequently Asked Questions
What is an Innershield welding gun and what is it designed for?
RAX Industrial Innershield welding guns are rugged, reliable, lightweight, and flexible tools designed specifically for semiautomatic air-cooled flux-cored self-shielded (FCAW-S) welding. They provide maneuverability and durability for demanding applications in heavy fabrication environments such as shipyards, automotive plants, and high-uptime manufacturing operations.
What amperage ratings and duty cycles do these welding guns offer?
Our Innershield welding gun models offer amperage ratings ranging from 350 to 600 amps, including 350A, 450A, and 600A configurations. All guns are rated at a 60% duty cycle, meaning they can operate at their rated amperage for 6 minutes out of every 10-minute period without overheating, meeting NEMA specification EW3.
What wire diameters are compatible with these welding guns?
Compatible wire diameters vary by model and typically range from 0.062 inches (1.6 mm) to 0.120 inches (3.0 mm). Specific sizes include 3/32 in. (2.4 mm), 7/64 in. (2.8 mm), and 0.120 in. (3.0 mm) for flux-cored self-shielded welding applications.
What cable length options are available?
Most models are available with cable lengths of 10-foot (3 m) or 15-foot (4.5 m), providing flexibility to accommodate different workspace configurations and reach requirements.
What design features enhance durability, performance, and accessibility?
Key durability features include a heavy-duty gun trigger switch engineered for positive electrical contact and extended service life, plus a reinforced rubber jacket that adds strength and longevity to the cable.
For enhanced accessibility, alternate gun tubes are available in configurations such as 62°, 82°, or 45° angles, allowing operators to reach welds in confined spaces or areas with limited accessibility. Our products are developed to meet NEMA specifications and carry major certifications including CE and ISO 9001:2015.
Are these guns compatible with common wire feeders?
Yes, these Innershield welding guns are precision-engineered for universal compatibility with a wide range of common wire feeders, including models similar to LN-7, LN-8, LN-9, and LN-25, as well as systems from manufacturers like Lincoln, Tweco, Bernard, Miller, and others.
Do you offer OEM/ODM customization services for welding machine manufacturers?
Yes, we specialize in comprehensive OEM/ODM customization as a core service for machine OEMs. We provide free industrial design and prototyping based on your specific application needs, including private labeling, aesthetics customization, and component modification to ensure seamless integration with your welding systems.
With an agile supply chain, over 20 years of integrated R&D and manufacturing experience, and a team of 50+ specialists including 20+ R&D engineers, we enable rapid, market-ready development to help reduce BOM costs and enhance product competitiveness.
What sales and marketing support is available for distributors and wholesalers?
We support distribution partners with competitive tiered pricing, private labeling options, and high-quality marketing materials including product catalogs and samples. Our efficient supply chain maintains a reliable 15-day lead time to help you manage inventory effectively and ensure rapid inventory turnover.
As an integrated manufacturer and member of the China Welding Association with authority in establishing national welding torch standards, we provide products that meet key certifications and deliver a strong value proposition for your customers.
What technical documentation and engineering support is available for welding engineers?
We provide technical specifiers with comprehensive documentation including performance test reports and technical data sheets (TDS) for project blueprints and compliance verification. Our R&D capability, supported by 50+ specialists and 20+ engineers, enables collaboration on advanced requirements such as water-cooled systems.
We offer 24/7 technical support with 12-hour response times, and our products meet rigorous NEMA specifications (like EW3) and carry certifications including CE, ISO 9001:2015, CCC, RoHS, SGS, and TUV for operational safety and regulatory compliance.
What is the warranty period for RAX Industrial Innershield welding guns?
RAX Industrial provides a 12-month warranty for Innershield welding guns, covering manufacturing defects and backed by 24/7 after-sales support with 12-hour response times.