K227-1 - Lincoln Electric LT-7 Submerged Arc Tractor Feeder

Automate Your Heavy Fabrication

Take the hard work out of long seam welding with the Lincoln Electric LT-7 Tractor. This self-propelled submerged arc wire feeder is the industry standard for structural fabrication, ship building, and tank erection. By mechanizing the welding process, the LT-7 allows you to achieve consistent, high-quality welds mile after mile. The unit is designed to be self-guiding and easy to operate, meaning a single operator can often manage the entire process. This frees up your team to focus on quality control, joint cleaning, and flux handling, significantly boosting your shop's overall productivity.

Rugged and Portable for Any Job Site

Whether you are working on a bridge deck or inside a barge, the LT-7 is built to go where the work is. Its compact design allows it to fit through small manholes and confined spaces that larger automation equipment simply cannot reach. Weighing only 120 pounds, it is lightweight enough for quick movement between joints but rugged enough to withstand the harsh conditions of heavy industry. The tractor can weld butt, horizontal fillet, and lap joints to either the left or right side of the frame, giving you the flexibility to tackle complex weldments without constant repositioning.

Simplified Operation and Control

The LT-7 puts total control right at your fingertips. The control box is conveniently located on the tractor itself, allowing you to adjust wire feed speed and travel speed without walking back to the power source. With a wire feed speed range of 100 to 400 inches per minute and travel speeds from 6 to 70 inches per minute, you can dial in the perfect parameters for steel as light as 12 gauge or heavy multi-pass plates. The unit handles solid wire sizes from 3/32" to 3/16", making it a versatile workhorse for a wide range of submerged arc applications.

Lincoln Electric Reliability

Invest in equipment that lasts. The LT-7 Tractor is backed by Lincoln Electric's renowned three-year warranty on parts and labor, ensuring peace of mind for your investment. It is designed to pair perfectly with Lincoln's DC constant voltage and constant current power sources, creating a reliable welding system that delivers day in and day out. Included with the tractor is the K1822-25 control cable, so you have the connectivity you need right out of the box. Upgrade your fabrication capabilities today with the precision and power of the LT-7.