Semiautomatic Metal Inert Gas (MIG) welding guns deliver rugged performance for automotive, heavy fabrication, construction, and general manufacturing applications. They balance operator control with consistent output in demanding industrial environments.
The guns feature chrome-plated tubes that prevent spatter adhesion and premium contact tips with anti-seize threading to manage heat dispersion and reduce seizing. This construction provides resistance to wear in high-heat applications and ensures long service life. Models offer amperage ratings of 250A or 350A with 100% duty cycle ratings using mixed gas, enabling continuous operation under rated conditions. Standard configurations include 15-foot lengths with air-cooling systems.
Ergonomic design elements prioritize operator comfort during extended use. A curved handle with soft rubber over-molded grip provides secure hold, while tool-less, rotatable gun tubes adjust 360 degrees for optimal working position, enhancing control and reducing fatigue.
These guns suit general fabrication, heavy fabrication, and maintenance and repair work in job shop and production environments requiring repetitive, high-quality welds. Standard limited warranties of 90 days cover manufacturing defects.
Expert Semiautomatic Welding Gun Manufacturer
RAX Industrial is a manufacturer of welding torches with 20+ years of expertise, founded with a passion for innovation and new technologies. We don’t just make welding guns; we engineer solutions for a safer, more efficient workspace. Our genuine torch tips and nozzles deliver the performance and reliability you need to minimize your production costs while maximizing welding efficiencies.
Driven by a safety-first philosophy and a ‘by welders, for welders’ mission, we are committed to reducing hazardous fumes and ensuring a healthier work environment. This dedication is backed by our integrated R&D hub, where 50+ specialists develop innovative, high-performance torches. Our 18,000 m² facility leverages robotic automation to produce over 270,000 welding torch sets annually, ensuring robust and time-tested construction for our Semiautomatic Welding Guns.
Our quality is affirmed by ISO 9001, CE, and RoHS certifications. Our products are trusted in over 40 countries. See how using genuine RAX Industrial products can reduce your operational and maintenance costs. Do not be fooled by imitators.
| Parameter | Specification | Notes / Source Alignment |
|---|---|---|
| General | ||
| Gun Category | Semi-Automatic | Standard classification. |
| Typical Application | General Fabrication, Heavy Fabrication, Maintenance & Repair | From skeleton (Item 3). Verified as core application scenarios in Source of Truth. |
| Performance | ||
| Rated Amperage | 250A, 350A | Skeleton listed 350A. Source of Truth specifies availability of both 250A and 350A models. Value harmonized. |
| Duty Cycle at Rated Amperage (Mixed Gas) | 100% | From skeleton (Item 3). Directly confirmed as a key feature in Source of Truth. |
| Cooling Type | Air-cooled | Enriched from Item 9. Confirmed by Source of Truth (“utilize air-cooling systems”). |
| Physical Specifications | ||
| Length | 15 ft (4.6 m) | From skeleton (Item 3). Confirmed by Source of Truth (“standard lengths, such as 15 feet”). |
| Neck / Gooseneck Type | Curved, Rotatable | Skeleton (Item 3) mentions a rotatable tube. Item 6 mentions a curved handle. Combined as a key ergonomic feature confirmed by Source of Truth. |
| Gun Tube Material | Chrome-plated | Enriched from Item 6. Confirmed by Source of Truth (“chrome-plated gun tube help prevent spatter adhesion”). |
| Ergonomics & Features | ||
| Ergonomic Features | Curved handle with soft rubber over-molded grip; Tool-less, rotatable gun tube (360°) | Enriched from Items 3 & 6. Harmonized and consolidated with detailed description from Source of Truth. |
| Contact Tip Feature | Premium tips with anti-seize threading | Enriched from Item 6. Aligned with Source of Truth (“anti-seize technology… to reduce seizing”). |
| Support | ||
| Warranty | 90 Days | From skeleton (Item 3). Harmonized with Source of Truth (“standard limited warranty period, such as 90 days”). |
| Additional Data (Competitor Enrichment) | ||
| Weight | 9.2 lbs (from one model) | Unique parameter enriched from Item 9. Retained as per workflow rules (not in Source of Truth). |

Frequently Asked Questions
What is a semi-automatic MIG welding gun and what industries is it used in?
A semi-automatic MIG welding gun is an air-cooled torch designed for reliable performance without requiring a separate water cooling system. This durable equipment is built for rugged welding environments and is recommended for general fabrication, heavy fabrication, maintenance & repair, job shop, and production applications across industries such as automotive, construction, manufacturing, and shipyards.
What are the amperage ratings and duty cycle specifications?
This semi-automatic MIG gun is rated for 350 amps with a 100% duty cycle at its rated amperage for both CO2 and mixed gas shielding, making it ideal for rugged environments and high-heat applications where continuous operation is required. This provides sufficient power for medium to heavy-duty welding jobs.
What features enhance operator comfort during use?
The gun is designed with all-day comfort in mind, featuring an ergonomic, lightweight curved handle with soft rubber over-molding. This design enhances comfort, allows for an easier grip, and helps reduce fatigue during extended welding sessions, supporting continuous operation in demanding fabrication environments.
What consumable parts are included with the welding gun?
The gun typically comes with key consumable parts for immediate operation, which may include items such as a gooseneck, insulator, diffuser, contact tip, and nozzle.
Are your products compatible with major welding equipment brands?
Yes, our semi-automatic MIG guns are engineered for universal compatibility with major brands such as Binzel, Miller, and ESAB, ensuring seamless integration with your existing equipment.
Do you offer deep OEM customization services?
Yes, we are a full-service OEM MIG/MAG torch manufacturer specializing in deep OEM/ODM customization, including private labeling and component modification to meet your specific application needs.
Our integrated R&D team, supported by over 20 engineers, collaborates closely with clients on industrial design and prototyping. We provide free industrial design and prototyping based on your application requirements, with an agile supply chain structured to ensure rapid market-ready development.
Can you support our distribution business with private labeling and competitive pricing?
Absolutely. We provide comprehensive private labeling services and offer competitive tiered pricing structures to support distributors and wholesalers in building brand loyalty and achieving strong profit margins.
We support your sales efforts with marketing materials such as product catalogs and samples. Our agile supply chain is structured to ensure a reliable 15-day lead time, facilitating rapid inventory turnover for our partners.
Do your products meet international compliance standards?
Yes, our products and manufacturing processes are backed by comprehensive international certifications including ISO 9001:2015, CE, RoHS, CCC, SGS, and TUV compliance, ensuring they meet rigorous quality and safety standards for global markets.
What technical documentation and engineering support do you provide?
We provide detailed technical data sheets (TDS) and performance test reports to aid in process specification and validation. Our advanced R&D capabilities, supported by a team of over 20 engineers, allow us to offer access to sophisticated solutions including high-performance, water-cooled torch systems for demanding applications.
We are committed to process innovation, operational safety, and regulatory compliance.
What warranty and technical support do you offer?
RAX Industrial stands behind the durability of its products. To maximize your equipment uptime, we provide 24/7 technical support with 12-hour response time and back all products with a robust 12-month warranty, ensuring reliable performance and peace of mind.











