Reboot RBM-2100D User manual

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Operation Manual
RBM-2100D MIG Welding Machine

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Version
Due to product version upgrades or other reasons, the contents of this document are not regularly updated. Unless
otherwise agreed, this document is intended as a guide only and all statements, information and recommendations in this
document do not constitute any guarantee, expressed or implied.
The pictures in this document are for reference only. If the picture is different from the real one, then use the pictures for
guidance only.
Contents
Contents ...................................................................................................................................................- 2 -
1 Brief Product Introduction .....................................................................................................................- 3 -
1.1 Summarize .................................................................................................................................. - 3 -
1.2 Technical Parameters ..................................................................................................................- 3 -
1.3 Accessories list ............................................................................................................................ - 4 -
2 Installation Instructions ......................................................................................................................... - 4 -
2.1 Welding Wire Installation Steps: ................................................................................................. - 4 -
2.2 MIG & TIG Torch Exploded Diagram -TIG torch is not included in standard accessories ........ - 6 -
2.3 Gas Shielded Welding Installation. ............................................................................................. - 6 -
2.4 MIG Spool Gun Installation.It is not included in standard accessories ......................................- 6 -
3 Operating Instructions .......................................................................................................................... - 7 -
3.1 Operation Panel Interface ........................................................................................................... - 7 -
3.2 Welding Operation Instruction .....................................................................................................- 7 -
3.3 Polarity Conversion Joint .......................................................................................................... - 10 -
4 Trouble Shooting And Error Checking ................................................................................................- 11 -
5 Daily Maintenance And Checking ...................................................................................................... - 13 -
5.1 Daily Maintenance .....................................................................................................................- 13 -
5.2 Daily Checking .......................................................................................................................... - 13 -
5.3 Welding Problems And Solutions ..............................................................................................- 14 -
6 Attention .............................................................................................................................................. - 15 -
6.1 Welding Environment And Safety ............................................................................................. - 15 -
6.2 Symbol Definition: ..................................................................................................................... - 16 -
7 Appendix ⅠWelding Parameter List ................................................................................................. - 20 -
8 Service Guarantee ..............................................................................................................................- 22 -

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1 Brief Product Introduction
1.1 Summarize
1.2 Technical Parameters
1IGBT Inverter
Technology
This device uses single tube IGBT inverter technology (the inverter frequency range is from
25-50KHz) to convert 50/60Hz alternating current (AC) to direct current (DC) and then to high
frequency and lower voltage rectification. The resulting pulse width modulation (PWM) output can
be used for the high-power DC power supply, Due to switching power inverter technology adopted,
the weight of the welder has been significantly decreased and the conversion efficiency of the
whole machine is increased by more than 30%.
2Superior
Performance
The machine can be used for gas shielded welding. The welder is equipped with a unique digital
electronic reactor circuit. The welding process of short circuit transition and mixed transition can be
controlled very precisely. It has excellent welding characteristics.Compared with silicon controlled
welders and tapped welders, it has the following advantages: stable wire feeding speed, low
energy consumption, energy saving and no electromagnetic noise.It also has the characteristics of
reduced spatter, stable arc, deep pool and high load.
3 Wide Voltage
Our welding machine is equipped with a power supply voltage compensation device，The power
supply voltage will work when the rated voltage is within 15% of requirements. When using
extension cords, in order to reduce voltage drop, use a heavy duty extension cord (10 or 12AWG or
greater) or use the recommended configuration length.
4 Multifunction
The machine is a versatile product which include MIG gas, MIG gasless, Lift TIG , STICK welding
and spool gun function.It has the advantages of high efficiency and power saving, and it is suitable
for welding of multi-metal and multi-process requirements.
5 Easy Contro
You can use the amperage knob to select the appropriate amperage according to the material and
thickness of the workpiece and you can get very good welding results by setting the voltage knob
to the same angle as the amperage knob
6 Portability
This welder is suitable for home use. Its portability, light weight of only 14KG and 60% duty cycle
on 200A make it the perfect machine for on-site job and DIY projects. With fluxed core wire, this
welder allows you to work without bringing along a heavy gas cylinder. This is your ultimate
welding partner!
7 Attention
Wire spool hold down not put on correctly, this will make the wire not come off the spool smoothly.
To much tension on the drive roller or not enough tension.
Using the wrong size roller for wire.
Not connecting the mig to the + or- terminal before trying to weld.
Machine type RBM-2100D
Supply voltage (V) 1 phase AC 110V/230V±15%
Frequency (Hz) 50/60
Rated Max. Input current (A)
110V
37 (MIG)
30.2 (MMA)
17.6 (TIG)
220V
30 (MIG)
27.4 (STICK)
16.7 (TIG)

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1.3 Accessories list
RBM02100D*1 Welding
Torch *1
Electrode
Holder Set *1 Work Clamp*1 Gas hose*1 Flux Cored
Welding Wire *1
2 Installation Instructions
2.1 Welding Wire Installation Steps:
To install a fresh reel of welding wire into the wire feeder. The hole position of the wire plate should be aligned with the
fixed plug on the shaft.
The wire reel should be rotated so that the wire feeds from the bottom of the reel into the wire feeder. Following the
diagrams below as a guide, place the reel over the spindle in the machine and fasten it into place with the washers,
Output current adjustment (A)
110V
40-140(MIG)
30-100 (STICK)
30-100 (TIG
220V
40-200 (MIG)
30-150 (STICK)
30-150 (TIG)
Output voltage (V)
110V
16.0-21.0 (MIG)
21.2-24.0(STICK)
11.2-14.0 (TIG)
220V
16.0-24.0 (MIG)
21.2-26(STICK)
11.2-16 (TIG)
No load voltage (V) 50±5
Duty cycle (%) 60
Power factor 0.7
Efficiency (%) 85
Wire feeder type All-in-one
Wire feed speed(m / min) 2-15
Wire diameter (mm) 0.8/1.0
Insulation grade F
Enclosure protection class IP21
Suitable plate thickness (mm) 0.5-5
Net Weight (kg) 14
Overall dimension (mm) 470×320×376

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spring and nut. There should be slight tension on the reel, just enough to prevent it from unwinding. While using one
hand to prevent in the wire from suddenly unwinding from the reel, loosen the free end of the wire from the edge of the
reel. Snip off the crooked or bent tip and insert the tip of the wire into the metal spring wire guide of the wire feeder.
0.030”(0.8mm)/0.040”(1.0mm)diameter 0.030” (0.8mm)/0.040” (1.0mm)diameter
4”（100mm 1kg）wire spool 8”(200mm 5kg)wire spool
According to the type and diameter of the wire, select the appropriate wire feed roller. V-grove roller for stainless steel
and carbon steel, Knurled-grove roller for flux cored wire and U-grooved roller for welding aluminum in the spool gun
(spool gun and U-groove roller are not included with the machine and must be purchased separately.) Please match
diameter size on the roller with the welding wire diameter. Please note that the wire feeder feeds the wire over the
inboard side of the feeder mechanism make sure you install the drive roller so that the desired groove is towards the
machine!
Release the drive tension mechanism by rotating the drive tension knob down. Now pass the wire through the wire guide
spring over the top of the groove of the drive wheel. Using your finger to aim the wire thought the second guide that is at
the front of the machine. Push the wire out a few inches or centimeters. Now bring down the top roller mechanism and
raise the tension knob to lock it into place. Adjust the tension knob so that the pressure on the welding wire, guarantees
the welding wire is not slipping if the wire is blocked, and not continuing to fed the wire, This would cause a huge mess
called a bird’s nest inside the machine.
Roller size: external diameter ∮30mm/ internal diameter ∮10mm/ height 10mm
Guide the wire sticking out the front of the machine into the welding gun cable. Now insert the welding gun cable into the
socket on front panel and screw it in firmly.Unscrew the nozzle and contact tip from the MIG gun and feed the wire
through the cable by pulling the trigger on the gun. To ensure the wire feeds quickly, you can turn tew amperage knob on
the front panel to it’s maximum setting. After the wire successfully fed reinstall install the contact tip and appropriate
nozzle. For fluxed core wire, install a ceramic nozzle, for solid wire install a copper nozzle.

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2.2 MIG & TIG Torch Exploded Diagram -TIG torch is not included in standard accessories
Torch nozzle 1 and contact tip 2 are consumables. Please change when needed.
2.3 Gas Shielded Welding Installation.
①MIG Welding
The gas cylinder containing the carbon dioxide gas, mixture gas or argon gas must be tightly connected to the regulator
or flow meter must to tightly so that there are no gas leaks.
Connect a gas hose between the machine’s rear gas connector and gas regulator or flowmeter with the gas hose clamps
provided. Once again there must be no leaks.
②LIFT TIG Welding
The regulator or flowmeter attached to the gas cylinder containing the argon gas is tightly connected with the gas tube on
torch so that there are no leaks.
2.4 MIG Spool Gun Installation.It is not included in standard accessories
1Open the cover of the wire feeding disc, open the cover of the wire feeding wheel bin, and loosen the
pressure wheel of the wire feeding mechanism.
2Send the welding wire to the wire feeding wheel (note that the wire feeding wheel matches the diameter

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of the welding wire)
3Install the welding wire on the shaft beside the wire feeding, and tighten the mounting screws.
4Press the wire feeding wheel and pressing wheel well, cover the cover of wire feeding bin and the cover
of wire feeding tray
3 Operating Instructions
3.1 Operation Panel Interface
3.2 Welding Operation Instruction
On display
After turning on the power using the switch on the back of the machine, The Amperage display is 000 and the Voltage
display is 000 when in MIG mode. The Voltage display shows no-load voltage in lift TIG and STICK modes. The actual
output current and voltage are displayed only during welding.
Polarity Selection Procedures
There are two basic ways to configure the welder:
Direct Current Electrode Positive (DCEP):The electrode cable (MMA stinger, MIG gun) connected to the positive (+)
1Voltage display:Display output voltage only when welding,otherwise 000 is displayed
2Current display:Display output current only when welding,otherwise 000 is displayed
3
MIG welding torch switch:Adjustment is only effective in MIG mode, it has no effect in STICK, and lift TIG
modes.The welding machine can only be operated with the Spool gun torch in the Spool gun torch mode; The
MIG gun only be used for welding in the MIG torch mode.Please check the switch status when using.
4Mode switch:MIG /STICK /LIFT-TIG functions. In MIG Mode, the button [3] is only effective.it has no effect in
STICK, and lift TIG modes.
5
2T/4T switch.
2T is manual, that is, always press the switch for welding
4T is semi-automatic, that is, pressing the trigger once strikes an arc, when the trigger is released the
machine continues to weld until the trigger is pressed again.
6
Adjust voltage: Adjustment is only effective in MIG mode, it has no effect in STICK, and lift TIG modes.[2] The
voltage display does not change when adjusting the voltage. You can get very good welding results when
pointing the current[7] voltage[6] knob to the same positions.
7Adjust current: [1] is no change when adjusting the amperage.You can get very good welding results when
pointing the current[7] voltage[6] knob to the same positions.

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connector on the front panel, The workpiece is connected to negative (-) connector by the work clamp cable. Suitable for
positive wire or stick electrode.
Direct Current Electrode Negative (DCEN):The workpiece is connected to the positive (+) connector on the front panel.
The welding electrode cable (MMA stinger, MIG gun, TIG Gun) is connected to the negative (-) connector pole. Suitable
for negative wire stick electrode.
The polarity is selected according to the welding process requirements of the workpiece, use of incorrect polarity may
cause arc instability, spatter and lack of fusion.
STICK Manual Welding Operation Procedures
Make sure the electrode cable is connected to the positive front panel connector.
The working clamp clamps the workpiece and is connected to the negative
connector on the front panel.
Make sure the [4 Mode Switch] at Stick Mode.Adjust [7 Adjust current] The welding
current can be changed.The welding current range is 40A to maximum current 150A
adjustment.
Operating Procedures for MIG
Gas Protection Welding-Solid wire
Welding wire Installation. ( Refer to 2.1)
Use the V-groove roller for stainless steel and carbon steel.
Connection of the gas cylinder(Refer to 2.3)
Insert the quick connect end of the MIG Gun selection cable into
the positive connector on the front panel (DCEP).Insert the quick
connect end of the working clamp cable into the negative
connector on the front panel on the machine.Check wire
operation：press torch trigger, the wire feeder will feed the wire through the torch tip. Select MIG mode on the front
control panel(Make sure you are not in SPOOL GUN state). After that, select the right material and diameter you are
welding with. Adjust amperage according your workpiece thickness.
To find the best welding performance and suitable for your welding habits. You may also adjust voltage to build a
perfect welding bead and penetration.
Gasless Welding-flux cored wire
Welding wire Installation.(Refer to 2.1)
Use the proper diameter Knurled roller for flux cored wire.
Insert the quick connect end of the MIG Gun selector cable into
the negative connector on the fron panel of the machine
(DCEN).Insert the quick connect end of the working clamp cable
into the positive connector on the front of the machine.Check wire
operation：press torch switch, the wire feeder will feed the wire
through the torch tip.Select MIG mode on the front control
panel(Make sure you are not in SPOOL GUN state). After that, select the right material and diameter you are welding
with. Adjust amperage according your workpiece thickness.
To find the best welding performance and suitable for your welding habits. You may also adjust voltage to build a perfect
welding bead and penetration.

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Spool gun torch welding
This machine can be connected to a Spool gun. (the package does not include a spool
gun).
The use of spool gun is similar to that of MIG gun, except that the wire is fed through
the wire feeding mechanism of the spool gun itself. In the spool gun mode, the
feeding
mechanism of the original machine does not work.
Select spool gun mode on the front control panel or turn on the “Spool gun”switch at
MIG mode.(This toggle switch near the “Mode ”button). Aluminum welding is
supported in spool gun mode.
The MIG torch switch is on the front panel of the machine
Direct Current Electrode Positive (DCEP):The electrode
cable (MMA stinger, MIG gun) connected to the positive
(+) connector on the front panel, The workpiece is
connected to negative (-) connector by the work clamp
cable. Suitable for positive wire or stick electrode.
Direct Current Electrode Negative (DCEN):The
workpiece is connected to the positive (+) connector on
the front panel. The welding electrode cable (MMA
stinger, MIG gun, TIG Gun) is connected to the
negative (-) connector pole. Suitable for negative wire
stick electrode.
Solid Wire,Welding aluminum Flux Cored Wire
Operation of LIFT TIG function
Please follow installation instructions to install the TIG torch and working clamp. In Lift TIG welding mode,adjust [7 Adjust
current] the welding amperage can be changed. The welding current range is 30A to maximum current 150A adjustment.
The TIG welding function is for thin workpiece welding or stainless steel welding. Use 100% Argon gas as shielding gas.
Connect the gas hose with gas tube on torch.Connection of gas cylinder（Refer to 2.3）
Connect the TIG torch on negative connector.
Connect the working clamp cable on positive connector.
Tungsten needle electrode contact workpiece arc striking

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Fault display：
OC light
When the welding load is overloaded and the output current of the machine is too large, the internal temperature of the
machine will become too high, and the machine fault light will come on. This is normal. The machine will recover after it
cools down and the temperature has returned to normal. If it does not, please shut the machine down and restart it. If the
machine is damaged, the fault light will be on, in this case, the machine needs maintenance, please contact the supplier.
3.3 Polarity Conversion Joint
This machine has the polarity conversion; There are positive and negative connector on the front panel. When using
solid wire with gas shielding, the polarity selection cable should be connected to the positive connector, the working
clamp cable should be connected to the negative connector; When using flux-cored wire the polarity selection cable
should be connected to the negative connector and the working clamp cable should be connected to positive connector.