GOWE Portable Inverter CUT/LGK 100 Plasma Cutting Machine User Manual

1. Introduction

Thank you for choosing the GOWE Portable Inverter CUT/LGK 100 Plasma Cutting Machine. This manual provides essential information for the safe and efficient operation, setup, maintenance, and troubleshooting of your new plasma cutter. Please read this manual thoroughly before operating the machine to ensure proper usage and to maximize its lifespan.

2. Safety Information

Operating a plasma cutting machine involves inherent risks. Always adhere to the following safety precautions:

• Wear appropriate personal protective equipment (PPE), including welding helmet with proper shade, flame-resistant clothing, gloves, and safety shoes.
• Ensure adequate ventilation to disperse fumes and gases produced during cutting.
• Never operate the machine in wet conditions or near flammable materials.
• Ensure the machine is properly grounded to prevent electrical shock.
• Disconnect power before performing any maintenance or changing consumables.
• Keep children and unauthorized personnel away from the operating area.

3. Product Overview and Components

The GOWE Portable Inverter CUT/LGK 100 is a high-performance air plasma cutting machine designed for efficient and precise metal cutting. It utilizes IGBT inverter technology for stable and reliable operation.

Figure 3.1: This image displays the GOWE Portable Inverter CUT/LGK 100 plasma cutting machine along with its standard accessories, including the plasma torch, ground clamp, air regulator, and various connectors and consumables.

Figure 3.2: An internal view of the GOWE plasma cutting machine, highlighting the rectifier bridge and two imported rectifier tubes, crucial components for converting AC to DC power within the inverter system.

Figure 3.3: This internal view illustrates key components such as the integrated air duct for efficient cooling, two imported IGBT (Insulated Gate Bipolar Transistor) modules for power switching, and a high-power reactor, all contributing to the machine's performance and stability.

4. Setup

Follow these steps to set up your plasma cutting machine:

1. Unpacking: Carefully remove the machine and all accessories from the packaging. Inspect for any shipping damage.
2. Power Connection: Connect the machine to a suitable 230 Volts power supply. Ensure the power outlet is properly grounded and can handle the machine's power requirements.
3. Air Compressor Connection: Connect a clean, dry compressed air supply to the machine's air inlet. The air pressure should be regulated according to the material thickness and cutting requirements.
4. Torch and Ground Clamp Connection: Securely connect the plasma torch to the designated port on the front panel. Attach the ground clamp to the workpiece, ensuring good electrical contact.

5. Operating Instructions

Before operating, ensure all safety precautions are followed and the machine is properly set up.

Figure 5.1: This image outlines critical performance aspects to consider for plasma cutting machines, including maximum cutting thickness, cutting speed, cut verticality, the difference in cutting slag reverse flow, and the ability to work continuously.

1. Power On: Turn on the main power switch on the machine.
2. Adjust Settings: Set the cutting current (amperage) and air pressure according to the material type and thickness you intend to cut. Refer to the cutting chart (if provided with the machine) for recommended settings.
3. Prepare Workpiece: Ensure the workpiece is clean and free of rust, paint, or other contaminants that could affect cutting quality. Secure the ground clamp firmly to the workpiece.
4. Initiate Arc: Position the torch nozzle close to the starting point of the cut. Press the torch trigger to initiate the pilot arc.
5. Begin Cutting: Once the pilot arc transfers to the workpiece, move the torch steadily along the desired cut line. Maintain a consistent travel speed and torch height for optimal cut quality.
6. Post-Cut: Release the trigger when the cut is complete. Allow the machine's cooling fan to run for a short period to cool down internal components before powering off.

6. Maintenance

Regular maintenance ensures the longevity and optimal performance of your plasma cutter:

• Consumables: Regularly inspect and replace worn-out torch consumables (electrode, nozzle, swirl ring, shield cap). Worn consumables lead to poor cut quality and can damage the torch.
• Air Filter/Regulator: Check and drain the moisture trap on the air regulator daily. Replace the air filter element periodically to ensure clean, dry air supply.
• Cleaning: Keep the machine's exterior clean. Periodically open the casing (after disconnecting power) and use compressed air to blow out dust and metal particles from internal components, especially cooling fins and circuit boards.
• Cables and Connections: Inspect power cables, torch leads, and ground clamp for damage or loose connections. Repair or replace as necessary.

7. Troubleshooting

If you encounter issues with your plasma cutter, refer to the following common problems and solutions:

If the problem persists after attempting these solutions, please contact customer support.

8. Specifications

9. Warranty and Support

For information regarding product warranty, technical support, or service, please refer to the warranty card included with your purchase or contact GOWE customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.