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Version Number: RBC4500-202100204A1

Operation Manual

Reboot RBC4500 Air plasma cutting technology Plasma cutters work by passing an electric arc through

a air/gas that is passing through a constricted opening. The gas can be air, nitrogen, argon, oxygen. etc. The electric

arc elevates the temperature of the gas to the point that it enters a 4th state of matter. We all are familiar with the first

three: i.e.,Solid, liquid, and gas. Scientists call this additional state plasma. As the metal being cut is part of the circuit,

the electrical conductivity of the plasma causes the arc to transfer to the work. The restricted opening (nozzle) the

gas passes through causes it to squeeze by at a high speed, like air passing through a venturi in a carburettor. This

high speed gas cuts through the molten metal.

Plasma cutting was invented as the result of trying to develop a better welding process. Many improvements

then led to making this technology what it is today. Plasma cutters provide the best combination of accuracy, speed,

and afford ability for producing a variety of flat metal shapes. They can cut much finer, and faster than oxy-acetylene

torches.。

Part 1: Machine Introduction

1. Current display meter

The digital Ammeter is used to display the actual output current of the power source.

2. Power indicator light

Turn on the power, this light will be on.

Fault light

When the welding load is overloaded and the output current of the machine is too large, this light will be on. This situation is

normal and the machine can be restored; when there is damage inside the machine, this light will be on. In this case, the

machine is abnormal and requires maintenance.

4. Adjust the value knob

Adjust the delayed aspiration time 1-15s.

5. Adjust the value knob

Clockwise rotate to enlarge the current, and anti-clockwise rotate to reduce the current

6.Cutting gun cable and gas connection seat.

Remove the black cap and connect the cutting gun.

Summary of content (18 pages)

PAGE 1
Version Number: RBC4500-202100204A1 Operation Manual Reboot RBC4500 Air plasma cutting technology Plasma cutters work by passing an electric arc through a air/gas that is passing through a constricted opening. The gas can be air, nitrogen, argon, oxygen. etc. The electric arc elevates the temperature of the gas to the point that it enters a 4th state of matter. We all are familiar with the first three: i.e.,Solid, liquid, and gas. Scientists call this additional state plasma.
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Version Number: RBC4500-202100204A1 7.Cutting gun control socket Two-core aviation socket, cutting gun trigger switch control connection 8.Negative Welding Terminal Negative Welding Terminal. Welding current flows from the Power Source via heavy duty bayonet type terminals. It is essential, however, that the male plug is inserted and turned securely to achieve a sound electrical connection. Note: RBC4500D: input voltage is AC 110V or AC 220V , RBC4500: input voltage is AC220V.
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Version Number: RBC4500-202100204A1 8 Copper nozzle 2 Spare parts, need to be replaced frequently, please keep inventory. 9 Pressure reducing valve 1 Adjust cutting air pressure. 10 Pressure reducing valve outlet connector 1 11 Pressure reducing valve inlet connector 1 Quick gas connector, direct plug-in 12 Manual 1 Normally provides manuals in English, if you need other language like French, German, Italian, Spanish, and Russian please contact us to get electronic version documents.
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Version Number: RBC4500-202100204A1 circuit breaker protection when 220V. 3、 For the current machine, please choose the power plug that suits your local electrical law requirements 4、 Extension cord: #12 AWG or larger; 25’ (8m) or shorter. 换 Turn on the power switch of the machine and the fan on the back of the machine rotates, and the digital display on the panel indicates that the power is normal.
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Version Number: RBC4500-202100204A1 Part 4: Technical specifications TYPE RBC4500D RBC4500 Input power voltage (V) AC110，50/60Hz AC220，50/60Hz AC220，50/60Hz Rated input current (A) 45 40 40 Rated power capacity (KVA) 4.3 6.5 6.5 20-35 20-45 20-45 Current adjustment range (A) Welding thickness (mm) Carbon Steel≤12.0 Stainless Steel≤12.0 Aluminum≤8.0 Copper≤4.0 Voltage adjustment range (V) Carbon Steel≤15.0 Carbon Steel≤15.0 Stainless Steel≤15.0 Stainless Steel≤15.0 Aluminum≤10.
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Version Number: RBC4500-202100204A1 2.2 Thermal Overload protection. Should the machine be used to an excessive level, or in high temperature environment, poorly ventilated area or if the fan malfunctions the Thermal Overload Switch will be activated and the machine will cease to operate. Under this circumstance, leave the machine switched on to keep the built-in fan working to bring down the temperature inside the equipment.
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Version Number: RBC4500-202100204A1 4. Finally, the regulated DC current is switched so that it no longer flows to the nozzle but instead flows from the electrode to the work piece. Current and airflow continue until cutting is stopped. 1. Ring 2. Nozzle 3. Plasma Stream 4. Shield Cup 5. Electrode 6. Steel Notes: The nozzle and electrode require periodic replacement. The electrode has an insert of tough high conductive material such as hafnium and cerium.
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Version Number: RBC4500-202100204A1 master, and on thinner materials, plasma cutting is much faster than oxy-fuel cutting. However, for heavy sections of steel (1" and greater), oxy-fuel is still preferred since oxy-fuel is typically faster and, for heavier plate applications high powered plasma machines are required for plasma cutting applications. 9. What are the limitations to Plasma Cutting? Where is Oxyfuel preferred? The plasma cutting machines are typically more expensive than oxy/acetylene.
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Version Number: RBC4500-202100204A1 1.1 Connect welding holder and ground clamp. 1.2 Connector cover. 1.3 Connect compressed air.
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Version Number: RBC4500-202100204A1 1.4 How to use air regulator. 1. Clockwise increase air pressure 2. Pull up 3. Pull down 4. Air regulator 6. Water release 7. Anti-Clockwise Reduce air pressure 5. Air/Water filter 1.5 Adjust the current, only the current can be adjusted. Possible problems: 1) There is no arc, check the ground wire to connect the workpiece to ensure that there is no rust, paint or other coatings on the workpiece.
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Version Number: RBC4500-202100204A1 2 Cutting operation. 2.1 Start Cutting. Hold the torch vertical at the edge Of Pull the trigger to start the arc ,The he work piece 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. Then, Proceed with the cut. 2.2 Hand torch cutting technique. When cutting make sure that sparks are exiting from the bottom of the work piece.
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Version Number: RBC4500-202100204A1 too fast, it will start spraying back onto the surface of the material without cutting all the way through. 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. 2.6 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 bevelled edge and a straight edge.
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Version Number: RBC4500-202100204A1 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 an 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.
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Version Number: RBC4500-202100204A1 Part 7: Internal diagram of the machine 1. 4 IGBT, stable and powerful current output. 2. Cooling fans, greatly improving the machine load duration. 3. 4 Rectifier, stable and powerful current output. 4. 3 high-power large capacitors, the machine is more stable. 5. The main transformer of all copper, the power is larger. 6. Digital display control panel. 7. In addition, an output reactance is added, the output welding current is more stable.
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Version Number: RBC4500-202100204A1 Part 8: PT31 Structure of cutting torch Position Code Description 1 IVS0071 Outside nozzle PT-31 2.1 IVU0056-10 TIP/D 1.0 PT31/LONG 2.2 IVU0056-11 TIP/D 1.1 PT31/LONG 2.3 IVU0056-14 TIP/D 1.
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Version Number: RBC4500-202100204A1 Part 9: Troubleshooting Problems Analysis Solution 1. Power indicate not lighting when power up, the fan not working，torch also not working while press torch trigger 1. No power go into machine through power cable. 2. Power cable, switch or other wire loosen 3. Power cable inside of machine connect not well 4. Power board problem 1.Check the power input. 2.
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Version Number: RBC4500-202100204A1 Problems Analysis Solution 1.Check the potentiometer if middle pin to earth get 0~5V 1.The wires loosen or potentiometer 8. The cutting current can not be voltage,Replace it if any damaged damaged。 adjust 2.Check if any wires loosen from 2.The setting circuit problem. front board to main board 3.Boards problem 9.Machine auto shut down after switch it on。 1.Maybe Power cable or circuit board 1.Fix or replace it。 short circuit 2.Check and replace it. 2.
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Version Number: RBC4500-202100204A1 Part 10：Cutting Thickness Chart Need to adjust the current and air pressure properly under metal thickness to get best cutting surface.