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Thank you for choosing a BOSSWELD MST 200 X4 AC/DC Multi Process Inverter Welder
In this manual you will find instructions on how to set up your welder along with general welding information,
safety information and helpful tips. We encourage you to go online to our website for more tips and trouble-
shooting as well as many welding resources.
The BOSSWELD MST 200 X4 is the latest in IGBT multipurpose welder technology, this very portable power
source enables the user to complete high quality welds in both MIG - TIG - MMA/Stick electrode applications.
This welder is easy to set up, easy to use and will provide very smooth output.
We truly hope you enjoy using your welder!
Every effort has been made to ensure that this manual has been prepared accurately, however errors and omissions are excepted.
BOSSWELD is a trademark of Dynaweld Industrial Supplies Pty Ltd.
M
MIG
• Simple to learn
• MIG Wire is fed through the gun to create the weld pool
• Gas or flux prevents oxidisation in the weld
• Weld with or without gas
• Point and pull the trigger
• Great for maintenance, small projects
& automotive repairs
METAL TYPES
Mild steel, stainless steel & aluminium
S
STICK
• Easiest process to learn
• Best choice for quick repairs
• Slower than MIG welding
• Forgiving in dirty/rusty environments
• Not recommended for thin sheet metal welding
METAL TYPES
Mild steel, stainless steel & cast iron
T
TIG
• Gives a better weld finish
• Accurate heat control
• Considered the most challenging process to learn
• Good way to weld thin material
• Argon gas is required
METAL TYPES
Mild steel, stainless steel & aluminium
P
PLASMA CUTTING
P
• Wide range of uses to cut conductive metals
• Uses an accelerated jet of hot plasma
• High speed/low cost cutting method
• Used extensively replacing gas cutting methods
• Air compressor is required
METAL TYPES
Mild steel, stainless steel & aluminium