1. Introduction
The HITBOX HBT250P is a versatile AC/DC TIG welding machine designed for a wide range of welding applications. Featuring advanced IGBT inverter technology, it offers multiple welding processes including AC TIG, DC TIG, Pulse TIG, and STICK (MMA) welding. This machine is suitable for welding various metals such as aluminum, stainless steel, alloy steel, low carbon steel, copper, and cast iron. Its compact design, dual cooling fans, and comprehensive protection features ensure reliable and safe operation.
2. Safety Precautions
Always observe the following safety precautions to prevent injury or damage to the equipment:
- Wear appropriate personal protective equipment (PPE), including welding helmet, gloves, and protective clothing.
- Ensure proper ventilation in the work area to avoid inhaling welding fumes.
- Do not operate the machine in damp or wet conditions.
- Ensure the machine is properly grounded.
- Keep children and unauthorized personnel away from the welding area.
- Disconnect power before performing any maintenance or adjustments.
- Avoid touching live electrical parts.
- The machine features overvoltage/overcurrent protection and overload/overheating protection.
3. Package Contents
The standard package for the HBT250P welding machine includes:
- 1 x HBT250P AC/DC TIG Welding Machine
- 1 x WP-17 TIG Torch
- 1 x Earth Clamp
- 1 x Electrode Holder
- 1 x Gas Tube
- Tube Locks
- Tungsten Needles
- Ceramic Nozzles
- Short/Long Crimp Caps
- Conductive Nozzle
4. Specifications
| Feature | Specification |
|---|---|
| Model | HBT250P AC/DC |
| Brand Name | HITBOX |
| Origin | Mainland China (Shenzhen) |
| Certification | CE |
| Rated Input Voltage (V) | 220V±15% |
| Frequency (Hz) | 50/60Hz |
| Rated Input Power (KW) | TIG: 4.37; MMA: 6.3 |
| Rated Input Current (A) | TIG: 28.1; MMA: 40.5 |
| Rated Input Apparent Power (KVA) | TIG: 6.21; MMA: 8.9 |
| Welding Current Adjust Range (A) | 10-200A |
| Welding Voltage Adjust Range (V) | 10-26V |
| No-load Voltage (V) | 50V (adjustable) |
| Rated Output Current | 250 A |
| Rated Output Voltage | 25 V |
| Max. Load Power Capacity | 7.0 kVA |
| Rated Duty Cycle @40°C (TIG) | 60% |
| Power Factor | 0.73 |
| Efficiency | 80% |
| Pulse Frequency | 50 Hz |
| Welding Thickness | 10 mm |
| Insulation Class | F |
| Protection Class | IP21S |
| Weight | 15.5 LB (approx. 7.03 kg) |
| Dimensions (L x W x H) | Approx. 29.7cm x 11.5cm x 19.8cm (11.7in x 4.5in x 7.8in) |
5. Setup Instructions
Before operating the welding machine, ensure all connections are secure and correct.
5.1 Rear Panel Connections
- Power ON/OFF Switch: Located at the top rear.
- Power Input: Connect the power cable to a suitable 220V power supply.
- Fan: Ensure the cooling fans are unobstructed.
- Gas In: Connect the gas tube from your shielding gas cylinder to the 'GAS IN' inlet.
5.2 Front Panel Connections
- TIG Torch Connection: Connect the WP-17 TIG torch to the designated TIG torch connector.
- Earth Clamp Connection: Connect the earth clamp cable to the appropriate terminal (usually marked with a ground symbol or '-').
- Electrode Holder Connection (for STICK/MMA): Connect the electrode holder cable to the appropriate terminal (usually marked with a '+' for DC MMA).
- Gas Outlet: Ensure the gas tube from the TIG torch is connected to the gas outlet on the front panel.
6. Operating Instructions
The HBT250P offers multiple welding modes and adjustable parameters for precise control.
6.1 Front Panel Controls
- Digital Display: Shows current welding parameters.
- MMA/TIG Selector: Switch between STICK (MMA) and TIG welding modes.
- AC/DC Selector: Choose between AC (for aluminum) and DC (for steel, stainless steel, copper, etc.) output.
- Pulse/Normal Selector: Engage or disengage the pulse function for TIG welding.
- 2T/4T Switch: Select trigger mode. 2T (Manual) for short welds, 4T (Semi-auto) for longer welds.
- Current Adjust Knob: Adjust the welding current (Amps).
- MENU Button: Access additional settings for fine-tuning parameters like AC Balance, Pulse Frequency, Start Amps, Peak Amps, Base Amps, Up Slope, Down Slope, Peak On Time, and Finish Amps.
6.2 Welding Modes
- AC TIG (High Frequency): Ideal for welding aluminum and magnesium alloys. The AC balance control helps clean the aluminum oxide layer.
- AC Pulsed TIG: Provides better control over heat input, reducing distortion and improving weld appearance on thin materials or when precise control is needed for aluminum.
- DC TIG (High Frequency): Suitable for welding stainless steel, carbon steel, copper, and other non-ferrous metals (except aluminum).
- DC Pulsed TIG: Offers enhanced control for DC TIG applications, similar to AC Pulse TIG benefits.
- STICK (MMA) Welding: For general-purpose welding with coated electrodes. Features built-in Anti-stick, Hot Start, and Arc Force for improved performance.
6.3 Waveforms and Material Compatibility
The HBT250P utilizes a stable square wave TIG AC/DC for consistent and high-quality welds. It can effectively weld various materials:
- Aluminum: Use AC TIG mode. Recommended welding wire diameters: 1.6mm, 2.4mm, 3.2mm. Welding thickness: 1.2-4mm.
- Iron, Stainless Steel, Copper, Low-carbon Steel, Alloy Steel: Use DC TIG or STICK (MMA) mode.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your welding machine.
- Cleaning: Periodically clean the machine's exterior and ensure the cooling vents are free from dust and debris. Use compressed air to gently blow out any accumulated dust from inside the machine.
- Fan Inspection: Check the dual cooling fans for proper operation and ensure they are not obstructed.
- Cable Inspection: Regularly inspect all welding cables, torch, and earth clamp for any signs of wear, damage, or loose connections. Replace damaged components immediately.
- Storage: Store the machine in a dry, clean environment when not in use.
8. Troubleshooting
If you encounter issues with your HBT250P, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power | Power switch off, power cable loose, circuit breaker tripped | Turn on power switch, check cable connections, reset circuit breaker |
| No arc/Weak arc | Incorrect current setting, poor earth connection, wrong electrode/tungsten, gas flow issue (TIG) | Adjust current, ensure good earth contact, use correct consumables, check gas supply and flow rate |
| Overheating indicator on | Exceeded duty cycle, poor ventilation, fan malfunction | Allow machine to cool down, ensure proper ventilation, check fans for obstructions |
| Poor weld quality | Incorrect parameters, dirty workpiece, improper technique, wrong shielding gas | Adjust current/voltage/pulse settings, clean workpiece thoroughly, refine welding technique, use appropriate shielding gas |
9. User Tips
- For precise control on thin materials or when working with aluminum, utilize the Pulse TIG function.
- The 'Down Slope' function helps create a cleaner, more aesthetically pleasing weld termination by gradually decreasing the current.
- When switching between 2T and 4T modes, remember 2T is for manual, shorter welds, while 4T is for continuous, longer welds, reducing finger fatigue.
- Always ensure your workpiece is clean and free of contaminants for the best weld quality, especially when TIG welding aluminum.
10. Warranty and Support
The HITBOX HBT250P welding machine comes with a 1-year warranty from the date of discharge at the destination. For technical support, warranty claims, or any inquiries, please contact the manufacturer or your local distributor.
Contact Information:
- WhatsApp: +86 16633953613
- Tel: +86 166 3395 3613
- Email: 1428040867@qq.com