21
HDT-1000 / INTRODUCTION
The HEAVY-DUTY TRACTOR is a large tractor with over-sized wheels for submerged-arc welding on flat
steel plate. The unit is available with Lincoln NA-3S feeder and feeder controls. The tractor control panel is
integrated into the NA-3S feeder control box for complete operation from the NA-3S panel. The unit is self-
contained in that all tools and consumables for submerged-arc welding are located on the tractor. The only
connections needed are those to the welding power supply. A flux recovery system is available as well for
re-use of the submerged-arc flux. This allows for longer travel distances between fillings of the flux-hopper
as as well as reduced consumables cost. The HEAVY-DUTY TRACTOR is able to travel long distances at
a constant speed. Two methods for weld-joint racking are available. Follower arms can be used to rack off
of a vertical surface located along the weld seam, such as in fillet welding. A magnetic track system is also
available when butt-welding operation is needed. The NA-3S feeder is capable of feeding wire diameters
from 1/16'' to 7/32''.
HDT-1000
HEAVY-DUTY TRACTOR WITH FEEDER, CONTROLS AND FLUX RECOVERY AS SHOWN.
Flux
Recovery
Control
Box
Flux
Hopper
Weld Head /
Wire Feeder
Wire Reel
Mast
FRONT VIEW
SIDE VIEW
Tractor
