Model 300STS Tube Squaring Machine
92-1942 Orig. 210625
7
3. GENERAL DESCRIPTION
The 300STS (Small Tube System) Tube Squaring Tool is designed specifically to prepare
tubes for autogenous welding.
The 300STS uses an OD saddle clamping system for holding and rounding the tube. It
accepts its torque through the saddle clamping system.
Speed is controlled by a variable speed electric motor. Feed is actuated by rotating an inline
feed collar.
The 300STS-1 will face .125” (3.2mm) to 1.125” (28.6mm) outside diameter tubing with a wall
thickness up to .125” (3.2mm).
The Standard saddle clamping system for the 300STS-1 requires a straight length of tube
.60” (15.2mm) long.
The Short Perch saddle clamping system for the 300STS-1 requires a straight length of tube
.19” (4.8mm) long.
The 300STS-2 will face .188” (4.8mm) to 2.375” (60.3mm) outside diameter tubing with a wall
thickness up to .200” (5.1mm).
The Standard saddle clamping system for the 300STS-2 requires a straight length of tube
.875” (22.2mm) long.
The Short Perch saddle clamping system for the 300STS-2 requires a straight length of tube
.19” (4.8mm) long.