Technical Informations; General Explanations; Application Area; Symbol And Meaning On Data Plate - Nielsen CT4973 Original Instruction

1. TECHNICAL INFORMATIONS

1.1 GENERAL EXPLANATIONS

●CT4973 welding machines are 1 phase,
constant voltage and current ( CV and CC ) power
sources especially designed for MIG/MAG and
MMA welding.
●All the controls of welding power sourceare placed on
to the front panel for easy operation and monitoring.
●Wire feeding unit is wheel drive and it is installed in
the power source.
Wire feeder contains motor and drived wheel, etc.
●

1.2 APPLICATION AREA

CT4973
is very good selection for welding
●
steel,stainless steel MIG/MAG welding with 0.6-1.0mm welding wires.
CT4973
is very good selection for welding
●
steel,stainless steel MMA welding with 1.6-4.0mm electrodes.

1.3 SYMBOL AND MEANING ON DATA PLATE

Single phase input AC power
MIG/MAG welding or GMAW process
MMA welding process
With MIG (Metal Inert Gas) or MAG (Metal Active Gas) welding also called Gas-Shielded Metal
Arc Welding (GMAW) an arc is maintained between a continuous solid wire electrode and the work
piece. The arc and weld pool are shielded by a stream of inert or active gas. The process is suitable for
most materials and filler wires are available for a wide range of metals.
MIG/MAG welding is inherently more productive than MMA, where productivity losses occur each time a
welder stops to replace a consumed electrode. Material losses also result from MMA welding when the stub of
each electrode is thrown away. For every kilogram of coated stick electrode purchased, about 65 per cent
becomes part of the weld (the rest being discarded). The use of solid wire and flux cored wire has increased
this efficiency to 80-95 per cent. MIG/MAG welding is a versatile process, which can deposit weld metal at a
very high rate and in all positions. The process is widely used on light to medium gauge steel fabrications and
on aluminium alloy structures particularly where high-rate manual operator production is required. The
introduction of flux cored wires is finding increased application in heavy steel structures.
TECHNICAL INFORMATION
1.2~6 mm thickness metal. It is a very good choice for
2.0~6 mm thickness metal. It is a very good choice for
supply , inverter，Rectifier，
●Output voltage and wire speed or welding current
of the CT4973 welding machine can be adjusted by
a welding voltage and wire speed or welding current
adjustment knobs for MIG/MAG.
Output welding current of the CT4973 welding
●
machine can be adjusted by a welding
adjustment knob for MMA.
DC current or
Transformer，
-7-
current
voltage
output