WeldPro 360 LRW-18 MIG Welding Boom Arm









The WeldPro 360 LRW-18 boom arm is the flagship of the WeldPro 360 lineup. It delivers exceptional performance with its 18’ reach and unique, double-articulated design. The WP360 LRW-18 differentiates itself from all other competitors by adding vertical motion to the secondary arm. If you need to weld both close to the floor as well as at extended heights—more than 10’ above the floor—then the WP360 LRW-18 is a great choice.
The standard mounting height for the WP360 LRW-18 arm is 8’ to the bottom of the arm. The secondary arm raises vertically 73” with the push of a button, stopping anywhere in its range. At the standard arm mounting height, the wire feeder height ranges from a comfortable 60” above the floor—for easy access to welding controls—to an impressive 133” for very large weldments. The double-articulation capabilities of this unique arm, allow you to fold the secondary arm back alongside of the primary arm (effectively shortening the arm to 10’) and quickly maneuver around or over obstructions.

The primary arm is 10’ long and the secondary arm is 8’ long. The primary arm rotates 192° around the main pivot point, providing complete welding coverage within a 56’ diameter semi-circular welding zone when using a 15’ MIG welding gun. The secondary arm rotates a full 360° about the end of the primary arm and eliminates all unreachable dead zones, common to single-articulated, straight-arm booms.
Create clean and organized welding cells by routing all hoses and cables within the interior of the WP360 LRW-18’s welding arm—no more unsightly cables and hoses hanging from the arm or laying on the shop floor creating a safety hazard. The primary arm incorporates an electrically controlled, positive stop rotation brake and the secondary arm has a no touch friction brake to hold the entire arm in position. Ball bearing pivot points make repositioning the arm an almost effortless task, moving from position to position in mere seconds.

With the ability to mount wire feeders from any supplier of choice, you can place the necessary welding controls right where the operator is working, no more wasted time going back and forth to the welding machine to make adjustments to the weld process.
When installing the WP360 LRW-18 arm, there are five basic options available from which to choose, giving you the ability to tailor your installation for maximum return on investment. The options range from a wide-open, do-it-yourself approach, to a fully engineered and ready to install solution, using readily available, WeldPro 360 designed and engineered components.
Install a WeldPro 360 LRW-18 MIG welding boom arm in your shop and like hundreds of other shops, you will see your productivity soar!
Benefits
- Increased weld productivity
- Complete coverage of the welding area with no dead zones
- With the elevating secondary arm, welding is possible from floor level to an impressive 21' height (using a standard 15' MIG welding gun)
- Quickly move from weld to weld with minimal effort
- Excels at over-height weldments
- Clean, organized weld cell with no unsightly dangling cables or hoses
- Improved safety through reduced trip hazards and minimized operator strain
Features
- 18’ long double-articulated boom with elevating secondary arm
- 192° primary arm rotation with electrically switched, positive-rotation brake
- Secondary arm rotates 360° around the end of the primary arm
- Secondary arm rotation uses a touchless, automatic rotation brake
- Secondary arm raises the wire feeder vertically 73" with the push of a button
- All cables and hoses are routed inside the arm tubes
- Built-in weld gun cable holster stores the weld gun when not in use
- Durable, safety-yellow powder-coated finish for high visibility and safe operation
Specifications
Boom Arm Length: | 18 ft. (10-ft. Primary Arm, 8-ft. Secondary Arm) |
Recommended Arm Mounting Height: | 8 ft. (10-ft. Option Available) |
Boom Arm Weight: | 461 lbs. |
Weight Carrying Capacity (Wire Feeder): | 83 lbs. (@ 100 PSI Air Pressure) |
Power Requirement: | 120 Volt |
Compressed Air Requirement: | 90 PSI Minimum |
*Please note that product specifications are subject to change as we continuously improve our products.
Boom Mounting Options
Option 1
Customer-Designed Solution

Install your WeldPro 360 boom arm with an in-house designed and built solution
Option 2
Tapered Column Mounts

Install your WeldPro 360 boom arm to a tapered column using WeldPro 360 purchased mounts
Option 3
Straight Column Mounts

Install your WeldPro 360 boom arm to a straight building column using WeldPro 360 purchased mounts
Option 4
Floor-Mounted Column

Install your WeldPro 360 boom arm to a WeldPro 360 Floor-Mounted Column anywhere in your shop
Option 5
Freestanding Column

Install your WeldPro 360 boom arm to a self-contained WeldPro 360 Freestanding Column with fast setup and built-in portability
Learn More About Mounting Options
Getting the most out of a WeldPro 360 weld boom requires a well thought out installation. Click below to explore the available options.
Learn MoreWelding Equipment Accessories
Equipment Platform Mount

Compatible with major brands like Lincoln, Miller, ESAB, and Fronius
Gas Cylinder Mount

Safely secure inert gas
Bulk Wire Mount

Compatible with wire drums and boxes
Wire Spool Enclosure

Compatible with spools up to 60 lbs.
Additional Resources
Other Welding Boom Arms
View Other WeldPro 360 Products
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