1. Introduction
Thank you for choosing the LOTOS Aluminum Tig/Stick Welder Square Wave Inverter. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new welding machine. Please read this manual thoroughly before operating the welder to ensure proper usage and to prevent injury or damage.
This versatile welding machine is designed for both TIG (Tungsten Inert Gas) and Stick (SMAW) welding processes, offering precise control for various metal fabrication tasks, including aluminum welding with its square wave AC TIG capability.

Figure 1: The LOTOS Aluminum Tig/Stick Welder Square Wave Inverter. This image displays the front panel of the welder, showing control knobs, digital displays, and connection ports for welding cables. The machine is compact and features a sturdy handle for portability.
2. Safety Instructions
Welding can be dangerous. It is crucial to follow all safety precautions to prevent electric shock, fire, explosions, burns, and other serious injuries. Always wear appropriate personal protective equipment (PPE).
2.1 General Safety
- Read and understand the entire manual before installation or operation.
- Ensure the welding area is well-ventilated to avoid inhaling fumes.
- Keep children and unauthorized personnel away from the welding area.
- Do not operate the welder in damp or wet conditions.
- Always disconnect power before performing any maintenance or service.
2.2 Personal Protective Equipment (PPE)
- Welding Helmet: Always use a helmet with appropriate shade filter to protect eyes and face from arc rays and sparks.
- Gloves: Wear heavy, flame-resistant welding gloves.
- Protective Clothing: Wear flame-resistant clothing, long sleeves, and pants to protect skin from burns.
- Footwear: Wear high-top, leather work boots.
3. Setup
Proper setup is essential for safe and effective welding. Follow these steps carefully.
3.1 Unpacking and Inspection
- Carefully remove the welder and all accessories from the packaging.
- Inspect for any shipping damage. Report any damage to your supplier immediately.
- Verify all components listed in the packing list are present.
3.2 Power Connection
This welder operates on specific voltage requirements. Refer to the specifications section for details. Ensure your power supply matches the welder's requirements and is properly grounded.
- Connect the power cord to a suitable grounded outlet.
- Do not use extension cords unless absolutely necessary, and ensure they are rated for the welder's current draw.
3.3 Gas Connection (for TIG Welding)
For TIG welding, an inert shielding gas (e.g., Argon) is required.
- Securely connect the gas hose from the welder to your gas regulator on the gas cylinder.
- Ensure all connections are tight to prevent gas leaks.
- Open the gas cylinder valve slowly.
3.4 Welding Cable Connections
- Connect the work clamp (ground clamp) to the appropriate terminal on the welder and securely attach it to the workpiece.
- Connect the TIG torch or electrode holder to its respective terminal.
- Ensure all connections are clean and tight for optimal performance and safety.
4. Operating Instructions
Familiarize yourself with the controls and settings before beginning to weld.
4.1 Control Panel Overview
The front panel features various controls for adjusting welding parameters:
- Current Adjustment Knob: Controls the welding amperage.
- Mode Selector Switch: Toggles between TIG (AC/DC) and Stick welding modes.
- Digital Display: Shows current welding amperage or voltage.
- Foot Pedal Connector: For connecting the optional foot pedal for remote current control in TIG mode.
4.2 TIG Welding (AC/DC)
For precise welding of thin materials and aluminum (AC TIG).
- Select "TIG" mode and choose AC for aluminum or DC for steel/stainless steel.
- Connect the TIG torch and gas.
- Set appropriate amperage based on material thickness and type.
- Use the foot pedal for fine current control during welding.
4.3 Stick Welding (SMAW)
For general purpose welding with coated electrodes.
- Select "Stick" mode.
- Connect the electrode holder and work clamp.
- Insert the appropriate electrode into the holder.
- Adjust amperage according to electrode type and diameter.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your welder.
5.1 Daily Maintenance
- Clean the exterior of the machine with a dry cloth.
- Check all cables and connections for damage or looseness.
- Inspect the TIG torch and electrode holder for wear.
5.2 Monthly Maintenance
- Use compressed air to blow out dust and debris from inside the machine (ensure power is disconnected).
- Check the cooling fan for proper operation.
- Inspect the power cord for any signs of damage.
Note: For any internal repairs or complex maintenance, contact qualified service personnel.
6. Troubleshooting
This section provides solutions to common issues you might encounter.
| Problem | Possible Cause | Solution |
|---|---|---|
| Welder does not power on. | No power supply; tripped circuit breaker; faulty power switch. | Check power cord and outlet; reset circuit breaker; contact service. |
| No arc. | Poor ground connection; incorrect settings; faulty torch/electrode holder. | Ensure work clamp is secure; verify mode and amperage settings; inspect torch/holder. |
| Poor weld quality (TIG). | Insufficient gas flow; contaminated tungsten; incorrect amperage. | Check gas cylinder and flow rate; clean/replace tungsten; adjust amperage. |
| Overheating protection activated. | Exceeded duty cycle; blocked ventilation. | Allow machine to cool down; ensure clear airflow around the welder. |
7. Specifications
Technical specifications for the LOTOS Aluminum Tig/Stick Welder Square Wave Inverter.
| Feature | Detail |
|---|---|
| Model | B01MXRYYS5 |
| Welding Processes | AC TIG, DC TIG, Stick (SMAW) |
| Input Voltage | (e.g., 110V/220V - Specific voltage not provided, typical for such welders) |
| Output Current Range | (e.g., 10-200 Amps - Specific range not provided, typical for such welders) |
| Duty Cycle | (e.g., 60% @ 200A - Specific duty cycle not provided, typical for such welders) |
| Dimensions (L x W x H) | (e.g., 17" x 8" x 12" - Specific dimensions not provided) |
| Weight | (e.g., 25 lbs - Specific weight not provided) |
Note: Specific values for Input Voltage, Output Current Range, Duty Cycle, Dimensions, and Weight are typical examples for this type of welder and should be verified against your product's packaging or official LOTOS documentation.
8. Warranty and Support
LOTOS Technology stands behind the quality of its products. For warranty information and technical support, please refer to the details below.
8.1 Warranty Information
This product typically comes with a manufacturer's warranty covering defects in materials and workmanship for a specified period from the date of purchase. Please retain your proof of purchase for warranty claims. For detailed warranty terms and conditions, visit the official LOTOS website or contact customer service.
8.2 Customer Support
If you encounter any issues not covered in the troubleshooting section or require further assistance, please contact LOTOS customer support:
- Website: www.lotosplasma.com (Example website, verify official LOTOS support page)
- Email: support@lotosplasma.com (Example email, verify official LOTOS support contact)
- Phone: (e.g., 1-800-XXX-XXXX - Example phone, verify official LOTOS support contact)
When contacting support, please have your product model (B01MXRYYS5) and purchase date ready.





