1. Introduction
The AWITHZ P20B is a portable capacitor spot welding machine designed for precision welding tasks, particularly suitable for 18650 lithium batteries and various metal sheets. It features a high-definition color screen, adjustable welding parameters, and multiple safety protections to ensure efficient and safe operation.
2. Safety Information
- Always read the operating manual completely before use, paying particular attention to all safety instructions.
- Wear appropriate personal protective equipment (PPE), including safety glasses and gloves, during operation.
- Ensure the welding pen tips are installed firmly. Loose tips can prevent proper spot welding.
- If excessive sparks occur, it may indicate that the gear setting is too high, the spot welding pen is oxidized, or the power is too high. Adjust settings or friction the pen tips with a file.
- The machine is equipped with high-temperature protection. If the temperature becomes too high during prolonged use, the output function may temporarily turn off. Allow the machine to cool down before resuming operation.
- Practice welding on scrap materials to familiarize yourself with the product and its settings before working on critical projects. Start with the minimum gear setting.
- Do not attempt to disassemble or modify the device. Refer all servicing to qualified personnel.
3. Package Contents
The AWITHZ P20B Spot Welder package typically includes the following items:
- Spot Welder Unit (P20B) x 1
- Foot Pedal x 1
- Spot Welding Pen x 2
- Spot Welding Needle x 6
- Nickel Sheet (5 meters) x 1
- Fast Charging Adapter x 1
- 6-section 18650 Fixture x 1
- File x 1
4. Product Features
- High Output Power: 14.6KW maximum output power for efficient welding.
- High Current: Up to 1625A maximum current.
- Versatile Welding: Capable of welding nickel-plated sheets, iron sheets, steel sheets, aluminum sheets up to 1.0mm (0.04inch), pure nickel sheets up to 0.5mm (0.02inch), and copper sheets up to 0.3mm (0.01inch).
- HD Color Screen: 2.4-inch (6.1cm) 320*240 resolution LCD for clear display of settings and status.
- Fast Charging: Supports 15A high current fast charging.
- Professional Welding Pen: Features alumina copper construction, gold-plated ends, replaceable welding needles, insulated wrap for comfortable grip, and thick copper wire for low resistance and heat.
- Multiple Safety Protections: Built-in quality safety chip with temperature control sensor and security algorithm, offering shock protection, voltage stabilizer protection, short circuit protection, low/high temperature protection, overcharge protection, and overdischarge protection.
- Adjustable Parameters: Fine-tune welding mode (Manual/Auto), Preheat (1-10ms), Intermittent (1-20ms), Gear (001-999), Trigger Time (0.5-5.0s), and Connecting Point (1-3).
5. Keys and Interfaces
Familiarize yourself with the controls and connection points of the spot welder:
- ON/OFF Button: Short press to toggle up options. Long press to turn the device ON/OFF.
- Toggle Key (Up/Down Arrows): Short press to switch down options. Long press to return to the Home screen.
- Adjust Key (Gear Icon): Short press for single adjustment of the currently selected item. Long press for continuous adjustment of the currently selected item.
- Spot Pen Connection Port: Connect the spot welding pens here.
- Trigger Interface: Connect the foot pedal here for manual triggering.
- Input Port: Insert the dedicated charging cable to charge the device.
6. Specifications
| Feature | Specification (P20B) |
|---|---|
| Model | P20B |
| Shell Material | Plastic |
| Charger Input | AC 100-240V 50-60Hz |
| Output | DC 9V 15A |
| Plug Type | US Standard (110V) / EU Standard (220V) |
| Output Power | 14.6KW (MAX) |
| Output Current | 1625A (MAX) |
| Screen Type | LCD |
| LCD Screen Size | 6.1cm / 2.4in |
| Welding Mode | Foot Pedal / Automatic |
| Preheat Time | 0-0.5ms |
| Intermittent Time | 1-20ms |
| Gear Adjustment | 1-999 |
| Trigger Time | 0.5-5s |
| Connecting Point | 1-3 |
| Foot Pedal Power Cord Length | 2m / 6.56ft |
| Nickel-plated Sheet Length | 5m / 16.4ft |
| Nickel-plated Sheet Thickness | 0.15mm / 0.006in |
| Max. Spot Welding Thickness | Nickel-plated/Iron/Steel/Aluminum: 1.0mm (0.04in) Pure Nickel: 0.5mm (0.02in) Copper: 0.3mm (0.01in) |
| Product Size (L*W*H) | 18*8*13.1cm / 7.09*3.15*5.16in |
| Net Weight | 2.5kg / 5.51lbs |
| Gross Weight | 2.57kg / 5.67lbs |
| Package Size | 23*22*15cm / 9.06*8.66*5.91in |
7. Setup
- Charge and Activate: Connect the fast charging adapter to the input port and charge the device for at least 5 minutes to activate it. The screen should display "OK" when ready for welding.
- Connect Welding Pens: Firmly insert the spot welding pens into the designated connection ports on the front panel. Ensure they are securely seated to enable proper spot welding.
- Connect Foot Pedal (Optional): If using manual trigger mode, connect the foot pedal to the 'Trigger Interface' port.
8. Operating Instructions
- Power On: Long press the ON/OFF button to turn on the device.
- Select Welding Mode: Use the Toggle Key to navigate through menu options and select your desired welding mode (Foot Pedal or Automatic).
- Adjust Parameters: Use the Toggle Key to select parameters such as Gear, Preheat, Intermittent, Trigger Time, and Connecting Point. Use the Adjust Key (short press for single, long press for continuous) to modify the values.
- Welding Parameter Fine-Tuning: The device offers ten thousand combinations for fine-tuning based on six core factors:
- Welding Mode: Manual / Auto
- Preheat: 1-10ms
- Intermittent: 1-20ms
- Gear: 001-999 (999 gear fine adjustment)
- Trigger Time: 0.5-5.0s
- Connecting Point: 1-3
Figure 8.1: Six core factors for fine-tuning welding parameters. - Start Welding:
- Foot Pedal Mode: Place the materials to be welded under the welding pen tips. Press the foot pedal to initiate the weld.
- Automatic Mode: The device will automatically detect contact and initiate the weld.
- Power Off: Long press the ON/OFF button to turn off the device after use. The device will automatically turn off after 8 minutes of no operation.
9. Maintenance
- Pen Tip Maintenance: Regularly check the welding pen tips for oxidation. If they become severely oxidized, use the provided file to friction them to ensure good conductivity and prevent excessive sparks.
- Cooling: If the machine becomes hot during prolonged use, allow it to cool down before continuing. This prevents activation of the high-temperature protection and ensures optimal performance.
- Storage: Store the spot welder in a clean, dry environment away from direct sunlight and extreme temperatures.
- Cleaning: Wipe the exterior of the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.
10. Troubleshooting
- No Spot Welding:
- Ensure welding pen tips are installed firmly.
- Check if the device is activated and displaying "OK".
- Verify power connection and charge level.
- Excessive Sparks:
- The gear setting may be too high. Reduce the gear.
- The spot welding pen tips may be severely oxidized. Use a file to friction them.
- The power setting might be too high for the material. Adjust accordingly.
- Machine Stops Working (Overheating):
- The machine's high-temperature protection has activated.
- Turn off the machine and allow it to cool down completely before restarting.
- Avoid prolonged continuous use without breaks.
11. User Tips
- Practice Makes Perfect: Spot welding requires practice to achieve optimal results. Start with scrap materials and gradually familiarize yourself with the machine's settings and your technique.
- Protective Gear: Always prioritize safety. Wear appropriate protective equipment, especially eye protection, to prevent injury from sparks.
- Optimal Settings: Experiment with different gear, preheat, and intermittent settings to find the best combination for the specific material thickness and type you are welding.
12. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided at the point of purchase or on the manufacturer's official website. Keep your purchase receipt as proof of purchase.