Best Portable Welding Machines Tested and Compared 2025

I’ve spent years tackling various welding projects, from quick home repairs to more involved fabrication jobs, and I can tell you, having a reliable portable welding machine makes all the difference. Lugging around heavy, bulky equipment just isn’t practical for on-the-go repairs or tight spaces. That’s why I’ve put these lightweight welders through their paces, digging into their features and real-world performance to help you find the perfect match for your needs. Whether you’re a seasoned pro or just starting your welding journey, this guide will help you confidently choose the best portable welder that delivers consistent results without breaking your back or your budget.

IMAGE	PRODUCT NAME	AMAZON LINK
	Hpoouo 200Amp 20PCS Rods Stick Welder, Super MINI Portable…	View on Amazon
	Portable Handheld Welding Machine – 110V IGBT Inverter…	View on Amazon
	YESWELDER 135Amp MIG Welder,110V Flux Core Welder Flux Core…	View on Amazon
	Portable Welding Machine 110V with Auto Darkening Goggles:…	View on Amazon
	Welding Machine Handheld,20-120A 110V Portable Stick Welder…	View on Amazon
	Portable Welding Machine 110V Handheld: Portable Hand Held…	View on Amazon
	GZ GUOZHI Welding Machine Handheld, 110V 130Amp Portable…	View on Amazon
	Hand Held MIG Welder Machine 110V, HIZONE 100A Flux Core…	View on Amazon
	Sakerplus Portable Welding Machine, Welder Machine 110V,…	View on Amazon
	Welding Machine Handheld, Portable Electric Welding…	View on Amazon

Hpoouo 200Amp 20PCS Rods Stick Welder, Super MINI Portable…

This Hpoouo stick welder truly lives up to its “super mini” name, making it incredibly easy to carry for any home repair or DIY project. Don’t let its tiny size fool you; with 200 amps of adjustable power, it’s capable of welding various metal materials up to 0.2 inches thick. Thanks to its advanced IGBT inverter control technology, you get a stable arc and smooth welding, which is a huge confidence booster for beginners and hobbyists alike. It even comes with 20 welding rods and essential accessories, so you’re ready to start right out of the box.

Key features that stand out:
– UPGRADED 200Amp Stick Welder 110V: Adjustable current from 20-200A.
– SUPER MINI PORTABLE WELDING MACHINE: Weighs just 3.7lb and is compact at 7.83.95.3 inches.
– ADVANCED DIGITAL IGBT INVERTER CONTROL TECHNOLOGY: Ensures reliability and smooth, stable arc.
– HOT START ARC FORCE ANTI-STICK: Features for quick arc start and reduced rod sticking.
– SUITABLT FOR MORE THAN 90% TYPES OF WELDING RODS: Compatible with 1/16″-1/8″ rods (E6013, E6011, E6010, E308).

Pros:
– Extremely lightweight and portable for ultimate convenience.
– High amperage output for a mini machine, suitable for various thicknesses.
– User-friendly features like hot start and anti-stick benefit beginners.
– Comes with a generous accessory package, including 20 rods.
Cons:
– The included accessories, while plentiful, might not be professional-grade quality.
Best for: Home repairs, DIY enthusiasts, and hobbyists needing maximum portability for stick welding.
Expert Opinion: This is an impressive little stick welder for its power-to-weight ratio. The 200A output on 110V is quite high for such a compact unit, making it versatile for many small to medium tasks. The IGBT technology and anti-stick features are excellent for consistent arc performance.

Portable Handheld Welding Machine – 110V IGBT Inverter…

This portable handheld welding machine is designed to be your go-to workshop companion, offering professional-grade precision in a remarkably small package. At just 3.8 lbs, it’s incredibly light, making it easy to carry wherever your projects take you. The intuitive 6-knob dial allows for precise power control, ranging from a gentle 20A for thin materials to a robust 120A for heavier joints. With features like “hot arc start” and compatibility with common rod sizes, it’s built to simplify welding for all skill levels.

Key features that stand out:
– Professional-Grade Welding Precision: IGBT inverter technology ensures rock-solid arc stability.
– Smart Power Control at Your Fingertips: Intuitive 6-knob dial for 20A to 120A adjustment.
– Your New Workshop Sidekick: Extremely lightweight at 3.8 lbs for ultimate portability.
– Foolproof Operation for All Skill Levels: Hot arc start and 3/32″-1/8″ rod compatibility.
– Built Like a Trusted Work Partner: 360° cooling system and overheat protection for durability.

Pros:
– Exceptional portability, lighter than many toolboxes.
– Wide amperage range makes it versatile for different metal thicknesses.
– Hot arc start and anti-stick features assist beginners.
– Durable build with comprehensive cooling and protection.
Cons:
– The marketing language can feel a bit overly enthusiastic for a tool.
Best for: Hobbyists, DIYers, and professionals who need a super light and dependable stick welder for varied on-site tasks.
Expert Opinion: This unit emphasizes user-friendliness and portability, which is key for a handheld design. The 6-knob dial for current adjustment is a smart inclusion, offering better control than simple switches. Its lightweight nature truly sets it apart for quick fixes and tight spaces.

YESWELDER 135Amp MIG Welder,110V Flux Core Welder Flux Core…

The YESWELDER 135Amp MIG Welder stands out as a true multi-process marvel, offering Gasless Flux Core MIG, Stick, and Lift TIG (with optional torch) capabilities in one compact unit. It’s a high-quality yet budget-friendly 3-in-1 welding machine that can handle mild steel up to 2/5” thick with its robust 135 Amp output. What makes it incredibly user-friendly is its synergic control, which automatically matches voltage to wire speed, making it a fantastic choice for both beginners and experienced welders. Weighing just 11.4 lbs, it’s also highly portable for a multi-process machine.

Key features that stand out:
– MULTI PROCESS: Handles Gasless Flux Core MIG, Stick, and Lift TIG.
– WELDING CAPACITY: Robust 135 Amp output for mild steel up to 2/5” thick.
– SYNERGIC CONTROL: Wire feeding speed and voltage automatically matched, with fine-tuning options.
– DIGITAL DISPLAY: Clear display for real-time current monitoring.
– LIGHT&PORTABLE: Weighs just 11.4 lbs with a convenient carrying handle.
– EXTRA BONUS: Includes E71T-GS .030” 2LB flux core welding wire.

Pros:
– Versatile multi-process capabilities cover a wide range of welding needs.
– Synergic control simplifies setup and operation, especially for beginners.
– Relatively lightweight for a multi-process machine, enhancing portability.
– Comes with flux core wire, making it ready to weld gasless MIG out of the box.
Cons:
– TIG welding requires an additional torch, which isn’t included in the base package.
Best for: Welders who need the flexibility of multiple welding processes (MIG, Stick, TIG) for garage work, fabrication, or field repairs, and appreciate intelligent controls.
Expert Opinion: For a multi-process machine, the YESWELDER 135Amp offers an excellent balance of features, performance, and portability. The synergic control is a major plus, removing much of the guesswork for beginners. Its ability to handle thicker materials up to 2/5″ is impressive for a 110V unit.

Portable Welding Machine 110V with Auto Darkening Goggles:…

This portable welding machine provides a truly comprehensive kit, making it an excellent option for beginners and pros alike. Beyond the handheld welder, you get auto-darkening welding goggles, 20 rods, gloves, and even a carrying case – everything you need to start welding safely and efficiently. At a mere 3.3 lbs, this handheld welder is incredibly light, ideal for tight spaces, high-altitude tasks, or mobile repairs. Its advanced IGBT inverter technology ensures stable, smooth welds with minimal spatter, making it easy to achieve clean joints right away.

Key features that stand out:
– More Complete Welding Machine Kit: Includes auto-darkening goggles, 20 rods, helmet, gloves, carrying case.
– Handheld Welding Machine: Weighs just 3.3 lbs and is compact (9.8 x 9.45 inches).
– Stable & Smooth Welding: Advanced IGBT inverter technology with current compensation and anti-stick.
– Auto-Darkening Welding Goggles: Professional-grade, adjustable shading (#3 to #11) with UV/IR protection.
– Smart Protection for Safe and Efficient Welding: 360° cooling, overheat protection, 20-120A adjustable output.
– Versatile Welding for Every Task: Supports 3/32″-1/8″ rods for various metals.

Pros:
– Comes with an exceptionally complete accessory kit, including crucial auto-darkening goggles.
– Ultra-lightweight and compact, making it highly maneuverable for diverse tasks.
– IGBT inverter technology provides stable arc and smooth welding, ideal for learners.
– Comprehensive safety features ensure reliable long-term operation.
Cons:
– The included helmet is a basic handheld mask, not a full head-mounted helmet.
Best for: Beginners looking for an all-in-one package to get started with stick welding, or experienced users needing an extremely portable and versatile machine for quick jobs.
Expert Opinion: The inclusion of auto-darkening goggles in the kit is a significant value add, especially for new welders who often overlook eye protection. Its ultra-light design combined with reliable IGBT performance makes it a strong contender for anyone prioritizing portability and ease of entry into welding.

Welding Machine Handheld,20-120A 110V Portable Stick Welder…

This handheld stick welder is all about combining power with extreme portability and ease of use. It delivers a real 20-120A welding output and utilizes advanced IGBT inverter, hot start, arc force, and anti-stick technology for smooth, precise welds. You get a 6-speed knob current adjustment to fine-tune your work, and it supports a variety of rod sizes, making it versatile for stainless steel, mild steel, and iron. Its unique handheld design, weighing only 3.3 lbs, makes it perfect for overhead work or situations where a traditional welder would be cumbersome.

Key features that stand out:
– REAL 20-120A WELDING STABLE OUTPUT: Adjustable output with 6-speed knob for precision.
– SUPPORTS MULTIPLE RODS SIZES: Ideal for E6011, E6013, E6014, E7018 and rods below 1/8″.
– SAFE & STABLE TO USE: Over-heating, over-current, over-loading protection, 360° cooling.
– UNIQUE APPEARANCE & HANDHELD PORTABLE DESIGN: Only 3.3lb, compact, designed for one-hand operation.
– HIGH QUALITY PARTS & LIFETIME WARRANTY: Comes with a full set of tools and a lifetime warranty.

Pros:
– Extremely lightweight and uniquely designed for handheld, single-handed operation.
– Offers precise 6-speed current adjustment for different applications.
– Robust safety features and an efficient cooling system ensure longevity.
– Lifetime warranty provides exceptional peace of mind for buyers.
Cons:
– The included mask is a basic handheld shield, which can be less convenient than a helmet.
Best for: Aerial work, tight spaces, quick on-the-go repairs, and users who prioritize exceptional portability and a solid warranty.
Expert Opinion: The “gun” form factor of this welder is a definite differentiator, making it incredibly ergonomic for certain applications. The lifetime warranty is practically unheard of for welding equipment at this price point, indicating strong manufacturer confidence. Performance-wise, the 20-120A output is solid for 110V stick welding.

Portable Welding Machine 110V Handheld: Portable Hand Held…

The SUNSIMIAO portable handheld welder is a robust and smart solution for both beginners and experienced welders. Featuring advanced IGBT inverter technology, it guarantees smooth arc starts and consistent power, minimizing spatter and sticking. It offers an adjustable 20-120 amp output with a convenient 5-level rotary knob, giving you precise control over your welds. Weighing just 3.3 lbs, it’s designed for easy one-hand operation and comes with a complete kit including welding rods, a mask, gloves, and a carry bag, making it truly ready to weld right out of the box.

Key features that stand out:
– Stable Powerful Welder with Smart IGBT Inverter: Ensures smooth arc starts and consistent power.
– Adjustable 20–120 Amp Welding Current Output: 5-level rotary knob for quick, accurate adjustments.
– Lightweight & Fully Equipped Portable Welder: Weighs just 3.3 lbs, comes with a complete kit including 20 rods.
– Support Multiple Welding Rod Sizes and Metals: Accommodates 3/32″ to 1/8″ rods for various metals.
– Safe, Reliable & Simple Operation: 360° smart heat dissipation, hot start, and anti-stick functions.
– Comprehensive After-Sales Support: 2-year defect support and lifetime technical support.

Pros:
– Extremely lightweight and designed for single-handed use, maximizing portability.
– Comes with a comprehensive accessory kit, including essential safety gear.
– Smart IGBT technology and adjustable current provide stable and efficient welding.
– Strong after-sales support with a 2-year warranty and lifetime technical assistance.
Cons:
– The basic mask included is not a full auto-darkening helmet.
Best for: DIY enthusiasts, home repairs, auto repairs, and professionals needing a highly portable and user-friendly stick welder with good customer support.
Expert Opinion: This unit is another excellent example of a ultra-light handheld stick welder. The 5-level rotary knob offers good current control, and the emphasis on smooth arc starts and anti-sticking makes it very approachable for those new to welding. The included rods and carry bag add to its ‘ready-to-go’ appeal.

GZ GUOZHI Welding Machine Handheld, 110V 130Amp Portable…

The GZ GUOZHI 130Amp handheld ARC welder boasts a unique aerospace model design that sets it apart visually, while also providing practical benefits for portability. This compact and portable stick welder is ideal for aerial work and other environments where maneuverability is key. It offers a real 20-130Amp welding output with a built-in current digital display and hot start function for quick arc initiation. With robust safety guarantees like overheating and over-current protection, it ensures reliable operation even in tough conditions.

Key features that stand out:
– UNIQUE APPEARANCE& Portable Design: Aerospace model design, compact for aerial work.
– Safety Guarantee: Over-heating, over-current, over-loading protection, works at -20°C.
– Real 20-130Amp Welding Output: Built-in digital display, hot start function.
– Advanced Technology: Ideal for E6011, E6013, E6014, E7018 and rods below 1/8 inch.
– Package List: Includes 5 welding rods, ground clamp, gloves, and toolbox.

Pros:
– Distinctive and aesthetically pleasing design.
– Good welding output for a handheld unit, suitable for common rods.
– Strong safety features and cold-weather operation capability.
– Compact size and light weight make it highly portable for various jobs.
Cons:
– Only 5 welding rods are included, which might not be enough for extended projects.
Best for: Users who value a unique design, need a compact and safe stick welder for varied tasks including cold environments, and prioritize ease of transport.
Expert Opinion: The design is definitely eye-catching, but the core functionality is sound. The 20-130A output is standard and reliable for 110V stick welding, and the hot start function is critical for good arc initiation. Its ability to perform at very low temperatures (-20°C) is a notable advantage for certain climates or outdoor applications.

Hand Held MIG Welder Machine 110V, HIZONE 100A Flux Core…

The HIZONE Hand Held MIG Welder brings the convenience of MIG welding into an incredibly portable form factor. With its compact & ergonomic design, weighing only 5.5 lbs, it’s easy to handle and carry for any DIY project. This machine specializes in gasless MIG welding, making setup simpler and ideal for outdoor applications, supporting 1LB/2LB 0.030″ and 0.035″ flux core wires. Offering an output current up to 100A, it’s powerful enough for welding up to 1/8″ mild steel, perfect for home users, craft enthusiasts, and small projects.

Key features that stand out:
– Compact & Ergonomic Design: Weighs only 5.5 lbs for comfortable and effortless operation.
– Gasless MIG Welding: Supports 1LB/2LB 0.030″ and 0.035″ flux core wires, ideal for outdoor use.
– Powerful & Versatile: Output up to 100A, capable of welding up to 1/8″ mild steel.
– Safety: Equipped with overheating, overcurrent, and overloading protections.
– Package Includes: Comes with .030″/1lb Flux Cored Wire, contact tips, drive roller, ground clamp, brush & hammer.

Pros:
– One of the few truly handheld MIG welders, offering excellent portability for flux core.
– Gasless operation simplifies setup and makes it great for outdoor use.
– Lightweight and ergonomic design makes it comfortable for extended use.
– Comes with flux cored wire and essential accessories, ready for immediate use.
Cons:
– It is not designed for welding aluminum, limiting its material versatility.
Best for: DIY enthusiasts, small projects, craft makers, and anyone needing highly portable flux core MIG welding for mild steel and iron.
Expert Opinion: A handheld MIG welder is quite a specialized tool, and the HIZONE fills that niche well for flux core applications. Its extreme portability for MIG is a huge benefit, especially for those who despise gas tanks. The 100A output is solid for general small repairs and light fabrication.

Sakerplus Portable Welding Machine, Welder Machine 110V,…

The Sakerplus portable welding machine is designed for maximum portability and beginner-friendliness. At an ultra-lightweight 3.75 lbs, it’s 60% lighter than many older models, making it perfect for overhead work or mobile repairs. What truly stands out are its 5 precision current settings, which are incredibly intuitive for first-time welders, allowing for gentle heat on thin sheet metal or deep penetration on thick steel. With superior IGBT & inverter technology, you get clean, professional-grade welds with minimal spatter. It also comes as a complete welding machine kit, ready to use out of the box with 30 welding rods.

Key features that stand out:
– Ultra-Lightweight & Portable: Weighs only 3.75 lbs (1.7 kg), ergonomic handle.
– Beginner-Friendly with 5 Precision Current Settings: Easy-to-select amperage levels (20A/45A/70A/95A/120A).
– Superior Welding Quality with IGBT & Inverter Technology: Ensures stable current output, minimal spatter.
– Multi-Material Welding with Included Accessories: Handles alloy steel, carbon steel, iron; includes 30x 3/32″ welding rods.
– Complete Welding Machine Kit: Comes with welder, carry case, ground wire, helmet, brush, hammer, gloves, goggles.

Pros:
– Exceptionally lightweight and portable, ideal for mobile tasks.
– The 5 pre-set current levels simplify operation for beginners and ensure good results.
– Advanced IGBT technology delivers high-quality, stable welds.
– Comprehensive kit includes 30 welding rods and essential safety gear.
Cons:
– The fixed current settings, while beginner-friendly, lack the fine-tune adjustability of a knob.
Best for: First-time welders, DIYers, and mobile repair technicians who need a very light, easy-to-use stick welder with excellent portability and a complete starter kit.
Expert Opinion: The Sakerplus really hits the mark for accessibility. The 5 pre-set current settings are a brilliant feature for beginners, taking away much of the guesswork. Coupled with its incredibly light design and a generous accessory package, it’s a fantastic entry-level or secondary portable machine.

Welding Machine Handheld, Portable Electric Welding…

This portable electric welding machine redefines convenience with its incredibly lightweight and compact design, weighing only 2.9 pounds – making it one of the lightest options available. Equipped with intelligent IGBT inverter technology, it delivers stable current and powerful welding performance, ensuring efficiency and reliability for various tasks. The 20-200Amp welding output is easily adjusted with a knob, adapting to different welding rods and needs. An intelligent cooling system with 360° cooling technology and overheat protection ensures safe and long-lasting operation, making it suitable for both novices and professionals.

Key features that stand out:
– Intelligent LGBT Inverter Technology: Ensures stable current and powerful welding.
– 20-200Amp Welding Output: Adjustable knob for precise current control.
– Intelligent Cooling System: 360° cooling and overheat protection for safety and durability.
– Portable Welding Machine: Incredibly light at only 2.9 pounds, designed for one-hand operation.
– Supports Multiple Welding Rod Sizes: Accommodates 1/16″-1/8″ rods, with hot arc start function.

Pros:
– Arguably the lightest portable welding machine on this list, offering unparalleled portability.
– High 200Amp output for its size, allowing for versatile material thickness.
– Intelligent cooling and safety features ensure stable and prolonged operation.
– Easy-to-use adjustable current knob and hot arc start assist all skill levels.
Cons:
– The product listing does not specify what accessories are included in the package.
Best for: Professionals and serious DIYers who demand the absolute lightest possible welding machine without compromising on power, especially for overhead or hard-to-reach jobs.
Expert Opinion: At under 3 pounds, this welder is a marvel of miniaturization while still claiming a 200A output. That’s a huge benefit for anyone who needs to carry a welder for extended periods or in extremely confined spaces. The adjustable current and IGBT tech mean it’s not just a featherweight, but a capable performer.

Comparison Insights: Finding Your Perfect Portable Welder

When you’re looking at portable welding machines, a few things quickly stand out. For sheer lightness and grab-and-go convenience, the Welding Machine Handheld (2.9 lbs) and the Portable Welding Machine 110V with Auto Darkening Goggles (3.3 lbs) are exceptional, practically disappearing into your toolbox. If power output is a primary concern for 110V stick welders, the Hpoouo 200Amp and the Welding Machine Handheld (also 200Amp) lead the pack with their impressive amperage.

For those who need more than just stick welding, the YESWELDER 135Amp MIG Welder is a fantastic choice, offering multi-process capabilities (MIG, Stick, TIG) in a relatively portable 11.4 lb package. It’s also notable for its synergic controls, making it easier for new users to get started with MIG. If you’re set on a MIG welder but want ultimate portability, the HIZONE 100A Flux Core MIG Welder is a rare find, putting MIG welding into a handheld form at just 5.5 lbs, though it’s gasless only.

Many of these smaller portable arc welders come packed with beginner-friendly features like hot start, anti-stick, and arc force, making the learning curve much smoother. The Sakerplus Portable Welding Machine even offers 5 pre-set current levels to remove guesswork. Accessory kits vary wildly; some, like the Portable Welding Machine 110V with Auto Darkening Goggles, include almost everything you could need, even protective eyewear, which is a great value. Pay attention to warranty and customer support; units like the Welding Machine Handheld (20-120A) with a lifetime warranty and the SUNSIMIAO Portable Welding Machine with comprehensive support offer significant peace of mind.

Final Verdict: Choosing Your Best Portable Welding Machine

Picking the “best” really boils down to your specific needs and projects. If ultimate portability for stick welding is your top priority for home repairs or quick fixes, you can’t go wrong with the Welding Machine Handheld (2.9 lbs) or the Hpoouo 200Amp. Both offer incredible power for their size. For beginners looking for a complete package that includes essential safety gear and user-friendly features, the Portable Welding Machine 110V with Auto Darkening Goggles is an outstanding value.

If you’re a DIYer or light fabricator who needs the versatility of MIG welding (and potentially TIG), the YESWELDER 135Amp Multi-Process is a standout, providing excellent functionality in a compact form. For those who want MIG in a truly handheld, gasless format, the HIZONE 100A Flux Core MIG Welder offers a unique solution.

Ultimately, all these best portable welding machines demonstrate how far welding technology has come, making quality welding accessible to more people in more places. Consider your typical welding tasks, the materials you’ll be working with, and your budget to confidently select the portable welder that will serve you best in 2025 and beyond.

Best Portable Welding Machines: Your Questions Answered

Q1: What makes a welding machine “portable”?

A1: A portable welding machine is typically defined by its lightweight and compact design, making it easy to carry and move to different job sites or around a workshop. Most models are designed to be operated with a standard 110V household outlet, further enhancing their versatility and on-the-go capability. Many of the models reviewed here weigh under 15 pounds, with some even under 5 pounds, truly embodying portability.

Q2: Can these portable welding machines handle thick metals?

A2: While portable, these welders (especially the 110V stick welders) are generally best suited for light to medium-duty tasks. They can typically weld mild steel up to 1/8 inch (3.2mm) to 1/4 inch (6.4mm) thick. Some higher amperage models, like the Hpoouo 200Amp, claim to handle materials up to 0.2 inches (5mm), and the YESWELDER 135Amp MIG Welder can tackle mild steel up to 2/5 inches (10mm). For significantly thicker materials or continuous heavy fabrication, a larger industrial machine would be more appropriate.

Q3: What type of power source do these portable welders use?

A3: Almost all the best portable welding machines on this list are designed to run on a standard 110V household power outlet, which is a key aspect of their portability. This means you can plug them into most wall sockets, making them convenient for home use, garages, or remote sites with power access. Some may also be generator-compatible, but always check the specific welder’s requirements and your generator’s output.

Q4: Are portable MIG or stick welders better for beginners?

A4: Both portable MIG welders (especially flux core, which doesn’t require gas) and stick welders can be beginner-friendly. Stick welders, like many of the handheld models reviewed, often feature hot start and anti-stick functions that make arc initiation easier. Flux core MIG welders, like the YESWELDER or HIZONE, are also easy to learn because they offer a continuous wire feed, which many find more intuitive than maintaining a stick arc. The “best” depends on personal preference and the projects you plan to do; MIG welders generally produce cleaner welds on thinner materials, while stick welders are more forgiving on dirty or rusty surfaces.

Q5: What safety features should I look for in a portable welding machine?

A5: Key safety features for portable welders include overheat protection, overcurrent protection, and overload protection. These built-in safeguards automatically shut off the machine if it gets too hot or if there’s an electrical issue, preventing damage to the welder and ensuring user safety. A good cooling system, often with a fan and 360° heat dissipation, is also crucial for extending the lifespan of the machine during prolonged use. Always ensure you have appropriate personal protective equipment (PPE) like a welding helmet, gloves, and protective clothing.

Q6: Can I use different types of welding rods with these machines?

A6: Most portable stick welders are compatible with common types of welding rods, typically ranging from 1/16″ (1.6mm) to 1/8″ (3.2mm) in diameter. Common rod types include AWS E6013 (general purpose, easy to use), E6011 (good for dirty material, deep penetration), E7018 (low hydrogen, strong welds), and E6010. Some machines, like the Hpoouo 200Amp, specify compatibility with over 90% of rod types. For portable MIG welders, you’ll typically use flux core wire (e.g., E71T-GS) of specified diameters (e.g., 0.030″, 0.035″). Always check the product specifications to ensure compatibility with your desired welding electrodes.