1. Introduction
Thank you for choosing the FEIFANKE FKC-500L Plasma Cutter. This manual provides essential information for the safe and efficient operation, setup, maintenance, and troubleshooting of your plasma cutting machine. Please read this manual thoroughly before operating the equipment and keep it for future reference.
The FKC-500L is a 230V 50A plasma cutter featuring advanced IGBT technology and a non-contact, low-frequency pilot arc ignition system. It is designed for cutting various conductive metals, including stainless steel, aluminum, copper, and steel, with a maximum cutting thickness of 25mm.

Image 1.1: FEIFANKE FKC-500L Plasma Cutter in operation.
2. Safety Instructions
Operating a plasma cutter involves significant risks. Always adhere to the following safety precautions to prevent injury or damage to equipment:
- Electric Shock: Ensure the machine is properly grounded. Do not operate in wet conditions. Wear dry gloves and protective clothing.
- Fumes and Gases: Plasma cutting produces fumes and gases that can be hazardous. Work in a well-ventilated area or use a fume extractor.
- Arc Rays: The plasma arc emits intense ultraviolet and infrared rays that can burn eyes and skin. Always wear a welding helmet with appropriate shade, protective clothing, and gloves.
- Fire and Explosions: Sparks and hot metal can cause fires. Keep flammable materials away from the work area. Do not cut containers that have held flammable substances.
- Hot Parts: The torch and workpiece will be hot after cutting. Allow them to cool before handling.
- Compressed Air: Ensure your air compressor and lines are in good condition and rated for the required pressure.
- Maintenance: Disconnect power before performing any maintenance or changing consumables.
3. Package Contents
Verify that all items listed below are included in your package:
- 1 x FEIFANKE FKC-500L Plasma Cutter
- 1 x Ground Clamp
- 1 x 5M PT40 Cutting Torch
- 1 x Air Filter Regulator
- 1 x 2M Gas Tube
- 1 x Ceramic Nozzle
- 2 x Nozzles (consumables)
- 2 x Electrodes (consumables)

Image 3.1: Included components of the FKC-500L Plasma Cutter.
4. Product Overview
The FEIFANKE FKC-500L features a user-friendly control panel and robust construction. Familiarize yourself with the components before operation.
4.1 Front Panel Controls and Indicators

Image 4.1: Front and Rear Panel Introduction.
- Airflow / Pressure Display: Shows real-time air pressure (PSI).
- Gas Test / Cutting Function Indicator: Indicates current mode.
- Current Display: Shows the set amperage.
- Current / Post Flow Time Knob: Rotate to adjust current, press to set post-flow time.
- 2T/4T Mode Selector: Switches between 2-stroke and 4-stroke trigger modes.
- "+" for Earth Clamp: Connection point for the ground clamp.
- Pilot Arc Connector: Connection for the pilot arc cable.
- Interface for Torch: Main connection for the cutting torch.
4.2 Rear Panel Components
- Gas Outlet: For exhaust gas.
- Power Supply: Main power input.
- Cooling Fan: For heat dissipation.
- Air Filter: Filters incoming compressed air.
- Power Switch: Turns the unit on/off.
- Gas Inlet: Connection point for the compressed air supply.
5. Setup
Follow these steps for initial setup:
- Placement: Place the plasma cutter on a stable, level surface in a well-ventilated area, away from flammable materials.
- Power Connection: Connect the power cable to a suitable 230V power outlet. Ensure the power supply matches the machine's requirements.
- Air Compressor Connection: Connect your air compressor to the gas inlet on the rear panel using the provided gas tube. Ensure the air filter regulator is properly installed. The recommended air pressure range is 35-50 PSI.
- Ground Clamp Connection: Attach the ground clamp cable to the "+" terminal on the front panel. Securely attach the ground clamp to the workpiece or work table, ensuring good electrical contact.
- Torch Connection: Connect the cutting torch to its designated interface on the front panel. Ensure the pilot arc connector is also securely attached.
- Consumables: Ensure the correct nozzle and electrode are installed in the torch head.
6. Operating Instructions
The FKC-500L plasma cutter is designed for efficient and precise cutting of various metals.
6.1 Powering On and Initial Settings
- Turn on the power switch on the rear panel. The digital display will illuminate.
- Adjust the air pressure using the regulator to the recommended range (35-50 PSI). Monitor the Airflow/Pressure Display.
- Rotate the Current/Post Flow Time knob to set the desired cutting amperage. The Current Display will show the setting.
6.2 Cutting Thickness and Material Compatibility
The FKC-500L can cut a variety of conductive metals:
- Optimal Clean Cut: Up to 12mm (15/32")
- Maximum Cut: Up to 25mm (1")
- Compatible Materials: Stainless steel, aluminum, copper, brass, titanium, and steel.

Image 6.1: Cutting Thickness Capabilities.

Image 6.2: Cutting various conductive metals.
6.3 2T/4T Trigger Modes
The FKC-500L offers two trigger modes to suit different cutting needs:
- 2T (Two-Stroke) Mode: Press and hold the trigger to cut. Release the trigger to stop cutting. This mode is suitable for short cuts.
- 4T (Four-Stroke) Mode: Press and release the trigger to start cutting. Press and release the trigger again to stop cutting. This mode is ideal for long cuts, reducing hand fatigue.

Image 6.3: 2T and 4T Trigger Modes.
6.4 Post-Flow Function
The post-flow function extends the life of consumables by cooling the torch head after the arc stops. The post-flow time is adjustable from 5 to 20 seconds. A cooling time of 5-8 seconds is generally recommended.

Image 6.4: Post-Flow Welding Function.
6.5 Non-Contact Pilot Arc Ignition
The FKC-500L utilizes a non-contact, low-frequency pilot arc ignition system. This allows for cutting on painted, rusty, or dirty surfaces without needing to touch the workpiece, reducing electrode wear and improving cut quality.
7. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your plasma cutter.
- Consumables: Regularly inspect the nozzle and electrode for wear. Replace them when they show signs of degradation to maintain cut quality and prevent damage to the torch.
- Air Filter: Check and clean the air filter regularly. The filter removes moisture and contaminants from the compressed air, which is crucial for plasma cutting performance. Replace the filter element if it is heavily soiled or damaged.
- General Cleaning: Keep the machine clean and free of dust and metal particles. Use compressed air to blow out internal components periodically, ensuring the cooling fan operates efficiently.
- Cable Inspection: Inspect all cables (power, ground, torch) for cuts, abrasions, or loose connections before each use.
8. Troubleshooting
The digital display provides error codes to assist in troubleshooting common issues:

Image 8.1: Safety Codes and Troubleshooting Guide.
| Error Code | Cause | Solution |
|---|---|---|
| E01 | Overcurrent | Reduce cutting amperage or check for short circuits. |
| E02 | Overheating | Allow the machine to cool down. Arc will resume when temperature drops below 65 degrees Celsius. |
| E03 | Arc Sensor Error | The machine will automatically resume the arc. If persistent, check torch connections. |
| E04 | Thermocouple Abnormal Heating | Stop working and allow the machine to rest and cool. |
| E05 | Thermocouple Heating too fast | Trigger E02 (overheating) and allow the machine to rest. |
| E06 | Air Pressure Deficiency | Check air compressor, air lines, and air filter for proper pressure and flow. Ensure connections are secure. |
If you encounter an issue not listed here or if the problem persists after attempting the suggested solutions, please contact customer support.
9. Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | FEIFANKE |
| Model Number | FKC-500L |
| Input Voltage | 220 Volt |
| Output Current | 50A |
| Wattage | 4000 watts |
| Power Type | AC DC |
| Optimal Clean Cut Thickness | 12 mm (15/32") |
| Maximum Cut Thickness | 25 mm (1") |
| Duty Cycle | 60% |
| Recommended Air Pressure | 35-50 PSI |
| Ignition Type | Non-contact, Low-frequency Pilot Arc |
| Material | Waterproof painted stainless steel |
| Item Weight | 6.65 Kilograms |
| Package Dimensions | 38.4 x 31 x 20.6 cm |
| Color | Orange |
10. Warranty and Support
Specific warranty details and direct support contact information were not provided in the product data. For warranty claims, technical assistance, or replacement parts, please refer to the documentation included with your purchase or contact the retailer where the product was acquired. You may also visit the official FEIFANKE website for general support information.