RBC-5000D Cutting Machine 50 Amp Pilot Arc Reboot Instruction Manual

RBC-5000D Cutting Machine 50 Amp Pilot Arc Reboot

Product Information

• The RBC-5000D Cutting Machine is a high-performance cutting machine that utilizes inverter technology for superior performance.
  It is designed to be easy to use and can be widely used for various cutting applications. The machine features wide voltage compatibility, allowing it to operate on both AC120V and AC240V power supplies. It has a rated input current of 39A on AC120V and 25A on AC240V, with a rated power capacity of 4.5KVA and 5.75KVA respectively.

• The cutting thickness ranges from 15A to 35A for carbon steel (up to 12.0mm or 1/2in) and stainless steel (up to 12.0mm or 1/2in), and from 15A to 50A for aluminum (up to 5.0mm or 13/64in) and copper (up to 4.0mm or 5/32in). The voltage adjustment range is from 86V to 100V, and the no-load voltage is 325V. The machine has a rated duty cycle of 20% and an efficiency of 75%. It has a power factor of 0.85 and is classified as IP21S for protection and insulation class H.

• The RBC-5000D Cutting Machine has a compact size of 360120285mm (14.24.711.2in) and weighs 4.8kg (10.58lb). It comes with accessories including a High-Frequency Plasma Cutter, PT31 Plasma Cutter torch, and Ground wire.

Product Usage Instructions

Installation of Air Regulator

To install the air regulator, follow these steps:

1. Wrap the copper gas nozzle around the sealing tape and tighten it on the IN and OUT ends.
2. Wrap the meter head with the sealing tape and tighten it on the meter head installation position.
3. Fix the connecting frame to the installation position of the pressure-reducing valve behind the welder as shown in the figure.
4. Unscrew the rubber nut and fix the pressure-reducing valve on the connecting frame as shown in the figure.
5. Turn on the air valve switch, lift up the pressure regulating knob, adjust the air pressure to the specified air pressure (turn to + to increase the air pressure, and to – to decrease the air pressure), then press down the pressure regulating knob.
6. The scale position of the meter should indicate a pressure of 60-70PSI (about 0.4Mpa) air pressure. When there is too much water in the filter cylinder, open the drain valve to drain the water.

• Air Compressor Connection
• To connect the air compressor to the plasma cutter, follow the manufacturer’s instructions provided with your specific air compressor model.
• Plasma Cutter Torch Connection
• To connect the plasma cutter torch to the machine, refer to the provided instructions for your specific torch model.
• Cutting Torch Explosive Chart
• The cutting torch explosive chart provides information on worn parts and their replacement. The chart shows four parts: Outside nozzle, Extended tip, Diffuser, and Electrode. It is important to keep these parts in good condition and replace them when necessary.
• Operating Instructions
• The operation panel interface of the RBC-5000D Cutting Machine features a current display meter that shows the preset current and actual current during operation. The maximum output current is.

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.

Product brief introduction

Summarize

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 the 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%.

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Wide Voltage| Our cutting 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.

Easy to Use| A piloting arc system can strike arc easily with the principle of high-frequency oscillation. It has functions

that it can supply gas ahead of and turn off gas delays.High-frequency arc starting

Widely Used| It is suitable for cutting stainless, Steel, alloy steel, mild steel, copper, and other color metal

materials.

Superior Performance| 1. Stabilizing 2.Reliability 3. Lightness 4. Energy- saving and no noise 5.High cutting speed 6.Cutting

smoothly and no polish demands

Attention| Plasma cutter, the consumables are not on correctly, they are usually missing the white spacer. Air regular is not in the correct direction(this will not give it enough flow).

Air leaking from the hose connections. Customers don’t know they have to touch the metal to start

the arc.

Technical parameters

Cutting thickness

| Carbon Steel≤12.0mm(1/2in) Stainless Steel≤12.0mm(1/2in) Aluminum≤5.0mm(13/64in)

Copper≤4.0mm(5/32in)

| Carbon Steel≤16.0mm(5/8in) Stainless Steel≤16.0mm(5/8in) Aluminum≤6.0mm(15/64in)

Copper≤5.0mm(13/64in)

Voltage adjustment range| 86V-100V
No-load voltage| 325V
Rated duty cycle| 20%
Efficiency| 75%
Power factor| 0.85
Protection class| IP21S
Insulation class| H
Size| 360120285mm (14.24.711.2in)
Weight| 4.8Kg (10.58lb)

Accessories list

Installation instruction

Installation of Air Regulator

1. Wrap the copper gas nozzle around the sealing tape and tighten it on the IN and OUT ends;
2. Wrap the meter head with the sealing tape and tighten it on the meter head installation position;
3. Fix the connecting frame to the installation position of the pressure-reducing valve behind the welder as shown in the figure;
4. Unscrew the rubber nut and fix the pressure-reducing valve on the connecting frame as shown in the figure;
5. Turn on the air valve switch, lift up the pressure regulating knob, and adjust the air pressure to the specified air pressure (turn to “+” to increase the air pressure, and to “-” to decrease the air pressure), then Press down the pressure regulating knob;
6. The scale position of the meter, suggests the indicated position is 60-70PSI(about 0.4Mpa) air pressure. When there is too much water in the filter cylinder, the drain valve should be opened to drain the water.

| 1| Pressure regulating knob
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2| Fixed connection frame
3| Air outlet
4| Air inlet
5| Filter cylinder
6| Drain out
7| Pressure gauge

Air compressor connected to plasma cutter

The Plasma Cutter Torch connects to the machine

Cutting Torch explosive chart

1. Outside nozzle,
2. Extend tip,
3. Diffuser,
4. Electrode. These are worn parts, among which the extended tip and electrode are very easy to wear, please keep them.

Operating instructions

Operation panel interface

1| The current display meter， Displays preset current and actual current during operation The maximum output current is

50A when the 240V voltage is input, and 35A when the 120V voltage is input.

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2

| Power light When this light is on, it means that the power supply is normal. This machine can accept 120V or 240V power supply.

3

| Overcurrent or overheat protection light When the cutting load is overloaded and the output current of the machine is too large, the internal temperature of the machine is too high, and the machine fault light will be on. This is normal. The machine can recover after the heat dissipation becomes normal. Please restart the power supply; When damaged, the fault light will be on, in this case, the machine is abnormal and needs maintenance, please contact the supplier.
4| Current adjust knob
5| Recommended selection range of air pressure: when 120V is input, it is recommended to adjust the input air

pressure to 30-50PSI; When 240V is input, it is recommended to adjust the input air pressure to 30-60PSI.

Cutting Operation instruction On display

• After opening the power supply, the power light is light, current meter displays the preset current.

Preparation

Input cable connection

• Every machine has been disposed a power cable which must be connected to a coordinated voltage class in compliance with to input voltage of the cutting machine. If the cutting machine whose power voltage is 230V is connected wrong to AC 400V, that will cause components of the inter-machine are burn up.
• Make sure the power cable is connected to the power switch reliably and prevents it from oxidizing. Make sure the power voltage is inside the wave range.

Connect Air compressor

• Make sure the tube of pressed air is connected to the copper connector by a high-pressure rubber tube.
• Connect one end of the trachea to the gas in of the machine and the other end to the air compressor.

Output cable connection

• Earth cable is connected to the positive terminal of the front panel then tighten it.
• Make sure the copper screw of another end of a torch is connected to the gas-electrify integration terminal then tighten them in clockwise relation (prevent leaking gas).

Operation

1. Open the power switch; make sure the power switch is in “on” position. A screen will show the current volume.
2. Adjust the gas pressure make it adequate to the machine, and open the valve of pressed air.
3. Make sure the cutting current is adequate for the machine according to the thickness of the cutting piece.
4. Press the control knob of the torch, the electromagnetic valve is starting, it can be heard and the burner of the torch should flow out gas (The burner of low-frequency cutting machines or pilote-arc cutters should spurt fire)
5. It is 1mm from the copper tip to the workpiece (if it is an arc-supporting cutter.), It is 3-5mm from copper tip to workpiece press (if it is a burner of low frequency cutting machines or pilote-arc cutter ).knob of the torch and burns and strikes the arc, sparks of HF arc striking will diminish immediately. The user can begin to cut.

Adjust air pressure and Current

1

| Input 240V| 20Amps| 35Amps| 40Amps| 45Amps| 55Amps
---|---|---|---|---|---|---

Air pressure

| 30-60（PSI)

0.21-0.42(MPa)

| 30-60（PSI)

0.21-0.42(MPa)

| 30-60（PSI)

0.21-0.42(MPa)

| 30-60（PSI)

0.21-0.42(MPa)

| 30-60（PSI)

0.21-0.42(MPa)

Thickness (Fe)| 5mm(13/64in)| 8mm(5/16in)| 10mm(25/64in)| 12mm(1/2in)| 16mm(5/8in)
Thickness (Ss)| 5mm(13/64in)| 8mm(5/16in)| 10mm(25/64in)| 12mm(1/2in)| 16mm(5/8in)
Thickness (Al)| 1mm(3/64in)| 3mm(1/8in)| 4mm(5/32in)| 5mm(13/64in)| 6mm(15/64in)
Thickness (Cu)|  | 2mm(5/64in)| 3mm(1/8in)| 4mm(5/32in)| 5mm(13/64in)

2

| Input 120V| 20Amps| 30Amps| 35Amps|  |

Air pressure

| 30-50（PSI)

0.21-0.35(MPa)

| 30-50（PSI)

0.21-0.35(MPa)

| 30-50（PSI)

0.21-0.35(MPa)

|  |
Thickness (Fe)| 5mm(13/64in)| 8mm(5/16in)| 12mm(1/2in)|  |
Thickness (Ss)| 5mm(13/64in)| 8mm(5/16in)| 12mm(1/2in)|  |
Thickness (Al)| 1mm(3/64in)| 2mm(5/64in)| 3mm(1/8in)|  |
Thickness (Cu)|  | 1mm(3/64in)| 2mm(5/64in)|  |

Start Cutting

Edge cutting

| |
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Keep the torch vertical at the edge of the workpiece. Keep your wrist steady and ready to start cutting| Pull the trigger to start the arc , The cutting arc will initiate when the torch tip is close enough to the work Piece. Start cutting on the edge until the Arc has cut completely through.| fast speed will lead to incomplete cutting, and arc blowback is easy to damage the device. Too slow speed will lead to excessive scum and cutting the gap.

Piercing Cutting

Hold the torch at an angle to the workpiece, pull the trigger to start the arc, and slowly rotate it to an upright position.| Pull the trigger to start the arc , The cutting arc will initiate when the torch tip is close enough to the work Piece. Start cutting on the edge until the Arc has cut completely through.| When the piece is complete, Control the cutting speed and adjust the angle and position of the cutting torch to continue the cutting operation. Too fast speed will lead to incomplete cutting, and arc blowback is easy to damage the device. Too slow speed will lead to excessive scum and cutting the gap.

Cutting performance

1| Amperage| The standard rule of thumb is the thicker the material the more amperage required. On thick material, set the machine to full output and vary your travel speed. On thinner material, you need to turn down the amperage and change to a lower-amperage tip to maintain a narrow kerf. The kerf is the width of the

cut material that is removed during cutting.

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2| Speed| Amperage and speed are critical to producing a good quality cut. visually follow the arc that is coming from the bottom of the cut. The arc should exit the material at a slight angle away from the direction of travel. If it’s going straight down, that means the speed is too slow, and IT will have an unnecessary buildup of dross or slag. If the speed is too fast, it will start spraying back onto the surface of the material without cutting the workpiece completely. Because the arc trails at an angle, at the end of a

cut, slow your cutting speed, and angle the torch in to cut through the last bit of metal.

3| Direction| It is easier to pull the torch towards you than push it. The plasma stream swirls as it exits the tip, biting one side and finishing off on the other leaving a beveled edge and a straight edge. The bevel cut effect is more noticeable on thicker material and needs to be taken into consideration before starting your cut as

you want the straight side of the cut to be on the finished piece you keep.

4| Torch tip

height & position

| The distance and position of the plasma torch cutting tip have an effect on the quality of the cut and the

extent of the bevel of the cut. The easiest way to reduce bevel is by cutting at the proper speed and height for the material and amperage that is being cut.

5| Tip size and condition| The tip orifices focus the plasma stream on the work piece. It is important to use the correct size tip for the amperage being used, for example, a tip with a 3/64″ orifice is good for 0-40 amps whereas a 1/16″ orifice is better for 40-80 amps.

The low-amp tip has a smaller orifice which maintains a narrow plasma stream at lower settings for use on thin-gauge material. Using a 25 amp tip at a 60 amp setting will blow out and distort the tip orifice and require replacement.

Conversely, using an 80-amp tip on the lower settings will not allow you to focus the plasma stream as well and creates a wide kerf. The condition of the tip orifice is critical to the quality of the cut result, a

worn or damaged tip orifice will produce a distorted plasma stream resulting in poor cut quality.

6| Electrode condition| A fixed gap is established between the electrode and the inside of the cutting tip. Electrons arc across the gap, ionizing and superheating the air and creating the plasma stream. The electrode contains an

insert in the end made of a highly conductive material called hafnium. This insert erodes with use and

 |  | develops a pit in the end of the electrode, when the pit becomes too much poor quality cuts will result

and necessitate the replacement of the electrode.

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7| Air quality,Air pressure and volume| Compressors take in air at atmospheric pressure increase the pressure and store it in a tank.
 |  | Moisture that forms in airlines has a tendency to condense into larger drops when the air pressure
 |  | decreases as it enters the plasma torch. When these droplets enter into the high temperatures in
 |  | the plenum of the torch, they immediately break down into oxygen and hydrogen, which alters the
 |  | normal chemical content of air in the torch. These elements will then dramatically change the plasma
 |  | arc which causes the torch consumable parts to wear very quickly, alters the shape of the nozzle
 |  | orifice, dramatically affecting cut quality in terms of edge squareness, dross formation, and edge
 |  | smoothness. Air pressure, flow rate, and air quality are critical to quality plasma cutting and consumable
 |  | life span. Usually air pressure is preset at 60 psi. The volume capacity of your compressor is important,
 |  | If you are doing a lot of cutting, cutting thick plates (same air consumption but slower cut speeds =
 |  | longer cut time) then choose a compressor at 1.5 to 2 times the plasma system requirement.

Hand torch cutting Show

Torch tip height & position

①| ②| ③| ④

| | | **
①** The correct torch height and right angle shall be consistent with the minimum slope and equal slope of the material, so

as to ensure good cutting effect and prolong the service life of consumables.

② Torch angled to the material unequal bevel, one side may be excessively beveled.
③ Torch height too high, plasma stream may not cut all the way through the material.
④ Torch height too low. Tip may contact the work piece and short out or damage the tip.
Speed and Amperage

| ****

| ****
When cutting, select the appropriate current and pushing speed according to the material and thickness of the workpiece to ensure that the spark is exiting from the bottom of the workpiece| If the spark comes out from the top of the workpiece, it means that the workpiece has not been completely cut, because the torch moves too fast or the current is set too low.| If the spark passes vertically through the workpiece, it indicates that the workpiece has been completely cut off and the torch is cutting air because the torch moves too slowly or the current setting is too large

Troubleshooting and fault-finding

Notes: The following operations must be performed by qualified electricians with valid certifications. Before maintenance, you are suggested to contact a local distributor to verify qualification.

The switch indicator is on, the fan is not working, and the control knob is out of work.| Ø Overvoltage protection is working. Close the machine then Open it again after several minutes.
The switch indicator is lit, and the fan is working.

press the control knob of the torch, there is no HF

arc-striking sound and the electromagnetic valve is not working.

| Ø  Check if the torch is an open circuit.

Ø  Check if the control knob of the torch is damaged.

Ø  Part of the assistant power of the top board is damaged and there is no DC 24V output.

The switch indicator is lit, and the fan is working. press the control knob of the torch, there is no HF arc striking sound, and the interred diode is lit.| Ø  Check if the MOS or IGBT of the top board is damaged (driver mold is damaged).

Ø  Rising transformer of the bottom board is damaged.

Ø  Control mold is damaged.

The switch indicator is lit, the fan and electromagnetic valve are working, there is no sound of HF arc-striking and the inter-red diode is not lit.| There is some trouble in a part of arc-striking, such as:

Ø  It is too far between the discharge tip or there is adhesion in the discharge tip.

Ø  Primary coil of the arc-striking transformer is damaged or has poor contact.

Ø  Check if four times voltage rectifier diode is stricken.

Ø  Check if HF electric capacity 102/10KV is leaking.

Ø  Relay is damaged.

Other of the machine is normal, but the arc is not stricken when it is operating.| Ø  Input voltage is too low.

Ø  Pressure of the air compressor is too high or too low .

• Even if the machine comes up with abnormal phenomena such as cutting, arc unstable, or bad welding effects, it is still too early to judge whether there is a malfunction in the machine.
• The above-mentioned abnormal phenomenon may be caused by some reasons.
• For example, tight parts loosen, forgetting to switch on, wrong set up, cable broken gas rubber pipe cracked, etc. Therefore, please test and inspect these factors before delivering them back to the factory because a large number of troubles may be easily solved.

Daily maintenance and checking

Daily maintenance

• Remove dust regularly with dry compressed air. If the cutting machine is used in surroundings with heavy smoke and polluted air, it is necessary to remove dust at least one time one month.
• The pressure of compressed air shall fall to the required level to prevent damage to small components in the machine.
• Examine inside electric joints and ensure perfect contact (Especially plugs and sockets). Fasten the loosing joints. In case of oxidation, remove the oxide film with sandpaper and connect again.
• Prevent water from entering the machine and prevent the machine from getting moist. If any, blow and dry. Measure the insulation with a megohmmeter to make sure it is qualified to use.
• If the cutting machine is not used for a long time, pack the machine in its original package and store it in dry surroundings.
• All the maintenance and testing must be carried out when the power supply is totally cut off. Please make sure the power is off before opening the closure.

Daily checking

POWER SUPPLY

Position| Checking keys| Remarks
Control panel| Ø  Operation, conversion, and installation of the switch

Ø  Check the state of the power indicator light

| This leads to unstable arc and wire sending
Cooling fan| ****

Ø  Check if the fan state and the sound are normal or not

| Clean the residue check the reason and solve it
Power part| Ø  Check if there is abnormal liberation and sound when the power is on

Ø  Check if there is smell when the power is on

Ø  Whether the outside color change or get warm

|
Outer parts| Ø  The connector is loosened

Ø  Whether the outer shell or other connected parts are loosen

|
CABLE

Position| Checking keys| Remarks
Output cable| Ø Wearing out of the cable-insulated material

Ø  Cable connecting head naked (insulation damage), or loosened (the end of power supply, and cable of main material

connecting point)

| ****

Ø  For life security and stable cutting, adopt a suitable method to check according to the working place

Ø  Simple check daily

Ø  Careful and in-depth check on the fixed period

Input cable| Ø  If the connection between the plug and the power socket is firm

Ø  If the power input end cable fixed

Ø  If the input cable is worn out and bares the conductor

| In case of leakage and to ensure safety, please perform daily checking
Earth cable| If the earth cable that connects the main part is broken and connects tightly
CUTTING TORCH

Position| Checking keys| Remarks

Switch

| Ø  Press the torch switch, and no gas comes out.| Check switch.
Ø  Press the torch switch, the arc cannot be started.| Check switch.
Extend tip, Electrode| Ø  Cutting power is reduced.| Replace.

Cutting problems and resolution

• The phenomenon listed below may happen due to relevant accessories used, cutting material, surroundings and power supply. Please improve your surroundings and avoid these problems.

Arc starting difficulty. Arc interruption happens easily:

• Examine whether the grounding wire clamp contacts with the work pieces well.
• Examine whether each joint has improper contact.

The output current fails to reach the rated value:

• The deviation of power voltage from the rated value may cause the output current does no accord with the adjusted value. When the power voltage is lower than the rated value, the maximum output current may be lower than the rated value.

The current can not remain stable during operation:

• This situation may relate to the following factors
• The voltage of the electric power network changes;
• Serious interference from electric power networks or other electric facilities.

Attention

• The safety notes listed in this manual are to ensure the correct use of the machine and to keep you and other people from being hurt.
• The design and manufacture of cutting machines are considered safety. Please refer to the safety warning listed in the manual to avoid accidents.
• Different damage would be caused by wrong operation of the equipment as follows. Please read the user manual carefully to reduce such damage.

Cutting environment and safety Working surrounding

1. Cutting should be carried out in dry surroundings. The air humidity level should not be higher than 90%.
2. The temperature should be between -10C to 40C.
3. Don’t use the cutting machines in sunshine or rain. Keep it off the water.
4. Don’t use the machines in places of dust or corrosive air.
5. Cutter machines should not be carried out in places with quick airflow.

Safety norms

• Protection circuits of over-voltage, over-current, and over-heat circuits are designed in the cutting machines. It will stop working automatically when the input voltage, output current, or internal temperature exceeds the rated value. But if the machines are excessively used, such as with input voltage higher than the rated, the machine might be damaged. Please pay close attention to the following matters.

Keep good ventilation!！

• The cutting machines work with high cutting voltage. Nature air flow can’t reach the requirement of heat dissipation. So the fans are installed as cooling systems to ensure stable performance.
• Make sure the ventilation windows are not covered or blocked. The distance between the machines and things around should not be less than 0.3m. Good ventilation is good for cutting performance and operational life.

Never overload!

• Check the maximum rated current (according to the Duty Cycle chosen). Make sure the cutting current is never higher than the rated value. Over-current running will obviously shorten the operation life, even damage the machine.

Never over voltage!

• The Input Voltage could be found in Technical data diagram. The auto-compensation function will keep the cutting current in the rated range. If the input voltage exceed the permissible value, the machine would be damaged. Users should take protective measures in advance to avoid it.
• Make sure earth connected before operation.
• On the rear panel of cutting machine, a screw for earth connecting would be found. It must be ground connected with cable whose section is bigger than 6mm2 before operation, to avoid accidents caused by static or electricity leak.

Symbol definition:

• The safety notes listed in this manual is to ensure correct use of the machine and to keep you and other people from being hurt.The design and manufacture of cutting machine considers safety. Please refer to the safety warning listed in the manual to avoid accidents. Different damage would be caused by wrong operation of the equipment as follows. Please read the user manual carefully to reduce such damage.
• This Manual contains symbols as blow, please refer to their means expressed

which may cause major accident, damage or even death, if it is not followed.
WARNING| The words after this sign means there is some potential danger, which may cause hurt or property lose, if it is not followed.
ATTENTION| The words after this sign means there is potential risk, which may cause equipment fault or break, if it is not followed.

• Please follow the rules below to avoid heavy accidents.
• Never use the equipment to do other things but cutting.
• Follow related regulations for the construction of the input-driven power source, choice of place, usage of high-pressure gas, storage, configuration, safe-keeping of workpiece after cutting and disposal of waste, etc.
• Nonessential do not enter the cutting area.
• People using heart pacemaker is not allowed to get close to the cutting machine or area without doctor’s permission. The magnetism created by energizing the cutting machine can have a bad effect to the pacemaker.
• Install, operation, check and maintain the equipment by profession personnel.
• Understanding the contents of the user manual for safety.

Please follow the rules below to avoid electric shock

• Keep away from any electric parts.
• Earth the machine and workpiece by professional personnel.
• Cut off the power before installation or checking, and restart 5 minutes later. The capacitance is chargeable device. Please ensure it has no voltage before start again even if the power source is cut off.
• Do not use wire with inadequate section surface or damage insulation sleeve or even exposed conductor.
• Do ensure well isolation of wire connection.
• Never use the device when the enclosure is removed.
• Never use broken or wet insulation gloves.
• Use firenet when work at high position.
• Check and maintain regularly, don’t use it until the broken parts are fixed well.
• Turn off the power when not in used.
• Follow the national or local related standard and regulations when using the AC cutting machine at narrow or high position.

Please follow the below notes to avoid fire and explode, etc.

• No combustible in cutting area.
• Keep off combustible when cutting.
• Keep hot workpiece after cutting away from flammable gas.
• Do move away the combustible around when cut the dooryard, ground and wall,.
• The wire connection of base metal should be as close to the cutting place as possible.
• Never cut those facilities with gas pipe or airtight slot.
• Put fire extinguisher around the cutting area to prevent fire.

The gas and fumes are harmful to health, please wear protective device according to regulations.

• Wear exhaust equipment and breathe preventive facilities to prevent gas poisoning or choke.
• Use suggested part exhaust equipment and breathe preventive facilities to prevent hurt or poisoning by gas and other powder, please.
• To prevent oxygen-deficiency, air out the gas-filled room which is full of CO2 and argon on the bottom, When operating on trunks, boilers, cabins, etc.
• Please accept the supervisor’s inspection when operating in narrow space. Air the room and wear breathe preventive facilities.
• Never operate in degrease, washing or spray space.
• Using breathe preventive facilities when cut shielded steel for it will cause poisonous dust and gas.

The arc, spark, residue and noise are harmful to health, please wear protective appliance.

• Eye protection against arc is recommended when cutting or supervise cutting.
• Please wear preventive spectacles.
• Welder’s gloves, welder’s goggles, long sleeve clothes, leather apron, and other standard protection equipment must be worn for cutting operation.
• A screen to protect other people against the arc must be set in the cutting place.

Please follow the notes below to avoid gas cylinder toppling over or broken.

• Use the gas cylinder correctly.
• Use the equipped or recommended gaseous regulator.
• Read the manual of gaseous regulator carefully before using it, and pay attention to the safety notes.
• Fix the gas cylinder with appropriative holder and other relative parts.
• Never put the cylinder under high temperature or sunshine environment.
• Keep your face away from the gas cylinder exit when opening it.
• Put on the gas shield when it is not used.
• Never put the torch on the gas cylinder. The electrode can not meet the gas cylinder.

Any touch of the switch part will cause injury, please note the following.

• Never use the machine when the enclosure is off.
• Install, operate, check and maintain the machine by professional person.
• Keep your fingers, hair, clothes etc. away from the switch parts such as the fan.

The wire end may deal damage, please note the following

• Never look into the electric conduction hole when checking the wire feeding is normal or not, , or the shooting wire may stab your eyes and face.
• Keep your eyes, face or other naked parts away from the end of torch when feeding the wire manually or pressing the switch.

For better work efficiency and power source maintenance, please note the following

• Precautions against toppling over.
• Never use the cutting equipment for pipe thawing.
• Lift the power source from side when using the up-down forklift truck to avoid toppling over.
• When using the crane for lift, tie the rope to the ears with an angle no more than φ15 to the vertical direction.
• When lifting the cutting machine which is equipped with a gas cylinder and wire feeder, download them from the power source and ensure the horizontal of the machine. Fix the gas cylinder with a belt or chain when moving it to avoid body hurt.
• Ensure fastness and insulation when lifting the wire feeder through the swing ring for cutting.

Electromagnetic interference needs attention

• It may need extra preventive measures when the equipment is used in a particular location.
• Before the installation, please estimate the potential electromagnetism problems of the environment as follows.

1. Upper and lower parts of the cutting equipment and other nearby power cables, control cables, signal cables, and phone cables.
2. Wireless electricity as well as TV radiation and reception equipment.
3. Computer and other control equipment.
4. Safety-recognition equipment etc. Such as supervising industrial equipment.
5. The health of people around. Such as personnel using the heart pacemaker or audiphone.
6. Equipment for adjustment and measurement.
7. Anti-disturb capability of other used equipment. Users should ensure these equipment and the environment are compatible, which may need extra preventive measures.
8. Practical state of the cutting and other activities.

Users should observe the following dos and don’t to decrease radiation interference

1. Connect the cutting equipment to the power supply lines.
2. Maintain the cutting equipment regularly.
3. The cables should be short enough to be close to each other and the ground.
4. Ensure the safety of all the cutting metal parts and other parts nearby.
5. The workpiece should be well earth.
6. Shield or protect the other cables and equipment to decrease the effects of disturbances. The cutting equipment can be completely shielded in some special conditions.

• Users are responsible for interference due to cutting.

Service GUARANTEE

• This product is made of high-quality material and great care has been taken in its manufacture. It is designed to give good performance provided it is properly operated and maintained. The product is sold subject to the understanding that if any defect in manufacture or material shall appear within 12 months from the date of consumer sale if any defect in main parts over 12 months, the warranty period is subject to country Consumer Law, Our Service will arrange for such defect to be rectified without change under the following warranty items and conditions.

Warranty Terms and Conditions:

• The defect is not due to use of the product for other than domestic purposes , or an incorrect voltage, or use of improper accessories, or contrary to operating instructions, or to accidental damage, misuse, neglect or inexpert repair, or incorrect installation, or the product is excessively used for improper purposes other than daily consumption, or accessories belonging to the product, transportation.
• Thank you for choosing our products. Please feel free to give your precious suggestions, we will make efforts to perfect our products and service.

Warranty period from the purchase date :

1. One-year warranty for welding and cutting machines.
2. 1-month warranty for welding accessories.
3. The warranty does not cover faults resulting from operation careless handling or not following instructions.
4. Please register your after-sales service information in the following way to obtain the services and benefits you deserve.

• Customerservice@mirthtek.com
• Whatsapp+86 18938887689 Contact number (904)571-5453 Facebook

Documents / Resources

| Reboot RBC-5000D Cutting Machine 50 Amp Pilot Arc Reboot [pdf] Instruction Manual
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