RIRCHMOND CT312, CT416 and CT520 are multi-functional welders made with state-of-art inverter
technology. They have three functions: TIG, MMA, and CUT.
The advanced inverter technology used in our welders and cutters allows for converting 50/60Hz working
frequency to high frequency of up to 100Hz, with high power factor V-MOS, and then reducing and rectifying
the voltage, and producing a high power output with PWM for welding and cutting, thus greatly reducing the
weight and size of the main components (transistors), and, at the same time, raising the efficiency by 30
％
.
For MMA or TIG, the electric current is very stable and constant. The welding current does not change with the
length of the arc. For CUT, it generates a strong plasma arc of highly concentrated energy with a temperature as
high as 10000
～
15000 in ionization.
℃
CT312, CT416 and CT520 can be used to weld and cut carbon steel, stainless steel, alloy steel, copper, and
other nonferrous metals. These machines are portable, reliable, efficient, and energy-saving with a power
exchange rate as high as 85%.
5
GENERAL INTRODUCTION
