Introduction - NURIS MIG 550 RWS Operational Manual

1.INTRODUCTION

MIG/MAG 550A-RWS and MIG/MAG 550W-RWS are professional, easy-to-use, compact,
reliable, robust, economical and semi-automatic MIG/MAG welding machine with
excellent welding characteristics, offering the ability to weld all solid and cored wire
types. MIG/MAG 550-RWS, provides precise voltage adjustment with 4 coarse, 10 fine,
40 steps in total.
MIG / MAG 550 W-RWS gas metal welding machine has two main parts. The wire feeder
unit names NSK 4-C and welding power supply.
Figure 1. MIG/MAG 550W-RWS front view
Welding Power
transformer and DC rectifier group
that provides the voltage and
current required for welding. The
user parts are:
a. On-Off Switch
b. Welding fine voltage selection
switch
c. Welding
selection switch
d. Welding current indicator
e. Welding voltage indicator
f. Chassis output connector with
low smoothing inductance
g. Chassis output connector with
higher smoothing inductance
NSK 4-C Wire Feeder Unit: This unit
feeds the welding wire through
welding torch. These parts are:
h. Water inlet quick coupling (red)
i. Water outlet quick coupling
(blue)
j. Power
indicator LED
k. Two pulse or four pulse torch
trigger selection
l. Welding torch connector
m. Wire speed indicator
n. Wire speeds adjust buttons
1
08/2022 Rev. 1.3
Supply: Power
coarse voltage
and torch trigger