Product specifications ....................................................... 1
Brief introduction .............................................................. 1
Safety ............................................................................... 1
Technical description ........................................................ 2
Installation ......................................................................... 3
Operation instruction ........................................................ 3
Mantenance ....................................................................... 4
Basic troubleshooting ........................................................ 4
Diagram ............................................................................. 5
Parts list ............................................................................ 6
Interconnection diagram .................................................... 6
Accessories ....................................................................... 7
Trasportation and storage ................................................. 7
Job suggestion .................................................................. 7
PRODUCT SPECIFICATIONS
TABLE OF CONTENTS
1
BRIEF INTRODUCTION
MMA welder uses imported IGBT and fast recovery diodes as
main electric components. It is supplemented by a specially
developed main PCB board. In addition, the uniform
regulation of welding current has been designed to
guarantee the arc reach good welding process adaptability.
What’s more, its perfect dynamic protection features ensure
that it is safe and reliable when use. It is ideal for using low
carbon steel, stainless steel, alloy steel etc.
MMA Features:
• Lower cost operation, more portable, more compact,
superior output.
• Excellent arc properties and solution droplet transfer.
• With the protections of over-heating, over-voltage,
over-current.
• Plastic handle makes it easy to carry.
• Convenient quick connection for the output makes it quick,
safe, simple and stable.
NOTES: The above description may be modified without
prior notice such as omissions, unclear statements
about this welder.
SAFETY
Self-Protection
• The user must comply with occupational safety and
health rules and wear appropriate labor protective
equipment. Try to avoid injury on eye and skin.
• It is safe to cover your head with face mask while
welding, only do the observation on the arc through
the window of the mask.
• Don’t expose any part of the body at the same time to
the welding positive and negative output terminals
without insulated protection.
Cautions
• MMA Inverter DC Arc welder is a kind of electronic
product which makes its components more easily
damaged. While replacing or modulating, the strength
should not be too much in order to avoid causing
damage to the device.
• Check the connection to see if it is correct or reliable
each time before working. Besides, ensure
the grounding outlet device correct.
• While using, as smoke is harmful to human’s health,
the operation must be carried out in the ventilation
and exhaust facilities.
• Prohibit non-professionals to change or replace
the welder.
• Since the welder owns strong electromagnetic and radio
frequencies, the people with cardiac pacemakers
affected by the interference electromagnetic, electrical
frequency are not allowed to stay nearby.
• When it works, please pay attention to its rated duty
cycle. Do not overload.
Safety Precaution for Installation and Location
• In some areas, where something may fall from the sky,
personal safety precaution should be taken.
• In some areas around construction site, something like
the dust, acid, corrosive gases or other substance in
the air can nor exceed the standard value except those
generated while welding.
• It is should be equipped in the open air where there
is no direct sunlight, anti-rain, temperature range
from -10º C to +40º C and low humidity place.
• 50 cm space is needed to ensure good ventilation.
• No metal impurities are tolerant inside the welder.
ITEM/MODEL
Input power
Compatible with
CD electrodes
Rated input capacity
Rated input current
KN INW-130
110V~ 50-60 Hz
Yes
4.7 Kw
43 A
Quick connector
Insulated Grade
Electrode Size
Cooling Type
Dimension
Net Weight
10 - 25 mm
H
3/32” - 1/8” (.238 cm - .317 cm)
Fan
292 x 116 x 224 mm
6.61 lb
Rated duty cycle
No load voltage
Output current range
Efficiency
Protection Class
50% at 65A
30% at 130A
60 V
10 ~ 130 A
85 %
IP21S
