1. Introduction
Thank you for choosing the ANDELI TIG-250MPC Multi-Process Welding Machine. This inverter DC welding machine is designed for TIG, Pulse TIG, Arc (MMA), and Clean welding operations, offering versatility for various materials and applications. It features a 100V/200V dual voltage input, a 200 Amp welding current capacity, and a user-friendly LED screen with digital controls for precise adjustments. This manual provides essential information for safe installation, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your welding machine.
Figure 1: ANDELI TIG-250MPC Multi-Process Welding Machine. This image shows the overall design of the welding machine, highlighting its compact and portable nature.
2. Safety Information
Welding operations involve significant risks. Always prioritize safety to prevent injury or damage. Read and understand all safety warnings and instructions before operating the machine.
- Electric Shock: Welding current can cause fatal electric shock. Ensure proper grounding. Wear dry, insulated gloves and protective clothing. Do not touch live electrical parts.
- Fumes and Gases: Welding produces fumes and gases that can be hazardous to health. Work in a well-ventilated area. Use fume extractors if necessary.
- Arc Rays: Arc rays can burn eyes and skin. Always wear a welding helmet with appropriate shade lenses and protective clothing.
- Fire and Explosion: Welding sparks and hot metal can cause fires or explosions. Keep flammable materials away from the welding area. Have a fire extinguisher readily available.
- Hot Parts: Welded materials and equipment can remain hot for a long time. Use insulated gloves and allow parts to cool before handling.
- Noise: High noise levels can damage hearing. Wear ear protection.
- Pacemakers: Electromagnetic fields from welding can interfere with pacemakers. Consult a doctor before welding.
Always follow local safety regulations and guidelines for welding.
3. Package Contents
Verify that all items listed below are included in your package. If any items are missing or damaged, please contact customer support.
- ANDELI TIG-250MPC Welding Machine
- WP-17 TIG Torch
- Ground Clamp
- Electrode Holder (for MMA welding)
- Gas Hose
- Collets (1.6mm, 2.0mm, 2.4mm)
- Nozzles
- User Manual
Figure 2: Included accessories. This image displays the various components and accessories that come with the ANDELI TIG-250MPC welding machine, such as the TIG torch, ground clamp, electrode holder, and gas hose.
4. Product Overview
The ANDELI TIG-250MPC is a versatile welding machine offering multiple welding processes. Its intuitive LED screen and digital controls simplify operation for both beginners and experienced users.
4.1. Front Panel and Controls
Figure 3: Front panel with mode icons. This image illustrates the front panel of the welding machine, showing the various welding mode icons including TIG, Pulse, MMA, Clean, and Lift TIG.
- LED Screen: Displays welding parameters such as current, frequency, and time.
- Mode Selection: Buttons or dial to select TIG, Pulse, MMA, or Clean modes.
- Parameter Adjustment Dial: Used to precisely set welding current, pulse frequency, and other parameters.
- Output Terminals: Connections for the TIG torch/electrode holder and ground clamp.
4.2. LED Screen Interface
Figure 4: Detailed LED screen view. This image provides a close-up of the high-definition LED screen, showing digital readouts for current, frequency, time, and other welding settings, designed for simpler operation.
The high-definition LED screen provides clear visual feedback on all welding parameters, making it easy to monitor and adjust settings. Digital controls ensure repeatable welding conditions.
5. Setup
Proper setup is crucial for safe and effective welding. Follow these steps carefully.
5.1. Power Connection
The TIG-250MPC supports dual voltage input (100V or 200V). The machine automatically detects the input voltage. Ensure your power source matches the machine's requirements and is properly grounded.
Figure 5: Dual voltage illustration. This image visually represents the machine's capability to operate on both 110V for smaller tasks and 220V for industrial operations, indicating automatic voltage detection.
- Connect the power cord to a suitable power outlet.
- Ensure the circuit breaker can handle the machine's maximum current draw (e.g., 43A for 110V, 27A for 220V).
5.2. Welding Cable Connections
- Ground Clamp: Connect the ground clamp cable to the negative (-) output terminal on the machine. Securely attach the ground clamp to the workpiece or welding table, ensuring good electrical contact.
- TIG Torch: For TIG welding, connect the TIG torch cable to the positive (+) output terminal. Connect the gas hose from the TIG torch to the gas outlet on the machine or directly to your gas regulator.
- Electrode Holder: For Arc (MMA) welding, connect the electrode holder cable to the positive (+) output terminal.
5.3. Gas Connection (for TIG Welding)
- Connect the gas hose from the machine to your inert gas cylinder (e.g., Argon) via a pressure regulator.
- Ensure all gas connections are tight to prevent leaks.
- Set the gas flow rate according to your welding requirements (typically 8-15 liters/minute for TIG).
6. Operating Modes
The TIG-250MPC offers TIG, Pulse TIG, Arc (MMA), and Clean modes. Select the appropriate mode for your application.
6.1. TIG Welding (DC)
Direct Current (DC) TIG welding is suitable for stainless steel, carbon steel, copper, and other non-ferrous metals (excluding aluminum and magnesium). It provides precise control and high-quality welds.
- Select the TIG mode on the control panel.
- Adjust the welding current using the dial. Refer to welding charts for recommended settings based on material thickness and type.
- Ensure proper tungsten electrode preparation and gas flow.
- Initiate the arc using the Lift TIG method (touch and lift) or high-frequency start if available.
6.2. Pulse TIG Welding
Pulse TIG welding cycles the welding current between a high peak current and a lower background current. This helps to control heat input, reduce distortion, and improve penetration, especially on thin materials.
- Select the Pulse TIG mode.
- Adjust peak current, background current, pulse frequency, and pulse width according to your application.
- Experiment with settings on scrap material to achieve desired results.
6.3. Arc (MMA) Welding
Manual Metal Arc (MMA) welding, also known as stick welding, is suitable for a wide range of materials and thicknesses, particularly in outdoor or less controlled environments.
- Select the MMA mode.
- Insert the appropriate electrode into the electrode holder.
- Adjust the welding current based on the electrode type and diameter, and material thickness.
- Strike the arc by lightly touching and quickly lifting the electrode from the workpiece.
6.4. CLEAN Function
The CLEAN function is designed to assist in preparing the welding surface or for specific post-weld cleaning processes. Consult the detailed instructions for this mode in the full manual for specific applications and settings.
6.5. Suitable Materials and Welding Effects
Figure 6: Materials suitable for welding. This image displays various materials like stainless steel, galvanized pipe, square tube, and iron, indicating the versatility of the welding machine for different metal types.
The TIG-250MPC is highly versatile, capable of welding soft steel, ordinary thin steel, carbon steel, and iron. It is suitable for a wide range of applications including home use, maintenance work, auto body repair, construction, and DIY projects.
Figure 7: Welding effect examples. This image showcases the quality of welds achievable with the machine, demonstrating stable and uniform solder joints for TIG, Pulse, and Spot welding.
Figure 8: Easy adjustment of welding parameters. This image shows a hand interacting with the control dial, emphasizing the simple and intuitive adjustment process for welding settings.
7. Maintenance
Regular maintenance ensures the longevity and reliable performance of your welding machine.
- Cleaning: Periodically clean the machine's exterior with a dry cloth. Use compressed air to blow out dust from the cooling vents. Ensure the machine is unplugged before cleaning.
- Cable Inspection: Regularly inspect all welding cables, ground clamps, and torch components for wear, cuts, or damage. Replace damaged parts immediately.
- Tungsten Electrodes: Ensure tungsten electrodes are properly ground and free from contamination for optimal TIG welding performance.
- Gas System: Check gas hoses and connections for leaks. Ensure the gas regulator is functioning correctly.
- Storage: Store the machine in a clean, dry environment, away from excessive dust, moisture, and corrosive materials.
8. Troubleshooting
This section addresses common issues you might encounter. For problems not listed here, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Machine does not power on | No power supply; Power switch off; Faulty power cord | Check power connection and outlet; Turn on power switch; Inspect and replace power cord if damaged. |
| No welding output | Poor ground connection; Incorrect mode selection; Overheat protection activated; Loose cable connections | Ensure ground clamp has good contact; Select correct welding mode; Allow machine to cool down; Tighten all cable connections. |
| Unstable arc / Poor weld quality (TIG) | Contaminated tungsten; Incorrect gas flow; Wrong current settings; Improper torch angle | Re-grind or replace tungsten; Adjust gas flow rate; Verify current settings for material; Adjust torch angle and travel speed. |
| Electrode sticks (MMA) | Low welding current; Incorrect electrode type; Arc length too short | Increase welding current; Use appropriate electrode for material; Maintain proper arc length. |
| Gas flow issues (TIG) | Empty gas cylinder; Regulator malfunction; Leaking gas hose | Check gas cylinder level; Inspect and replace regulator if faulty; Check all gas connections for leaks. |
9. Specifications
Detailed technical specifications for the ANDELI TIG-250MPC welding machine.
Figure 9: Product parameters. This image presents a detailed table of the technical specifications for the TIG-250MPC, including voltage, current, duty cycle, and other electrical characteristics.
| Parameter | Value |
|---|---|
| Model | TIG-250MPC |
| Input Voltage (U1) | 110V / 220V |
| Rated Frequency | 50Hz / 60Hz |
| No-load Voltage (U0) | 56 ± 5V |
| TIG Welding Current (110V) | 160A (40% Duty Cycle), 101A (100% Duty Cycle) |
| TIG Welding Current (220V) | 200A (40% Duty Cycle), 127A (100% Duty Cycle) |
| MMA Welding Current (110V) | 130A (40% Duty Cycle), 82A (100% Duty Cycle) |
| MMA Welding Current (220V) | 160A (40% Duty Cycle), 101A (100% Duty Cycle) |
| Max Input Current (I1max) | 43A (110V), 27A (220V) |
| Effective Input Current (I1eff) | 27A (110V), 17A (220V) |
| Protection Grade | IP21 |
| Insulation Grade | F |
| Cooling Method | Air-cool |
| Product Weight | 9.36 kg |
| Package Dimensions | 48.1 x 36.4 x 26.9 cm |
10. Warranty and Support
The ANDELI TIG-250MPC welding machine comes with a two-year warranty from the date of purchase. This warranty covers manufacturing defects and ensures efficient customer service.
For warranty claims, technical assistance, or any questions regarding your product, please contact ANDELI customer support. Keep your purchase receipt as proof of purchase for warranty services.
We are committed to providing effective customer service and ensuring the quality of our products through rigorous manufacturing processes and internal testing.
