1. Product Overview
The HITBOX HIM250DPP is a versatile 180A welding machine designed for various welding applications. It features IGBT inverter technology and supports multiple welding processes including MIG (Gas/Gasless), MMA, Lift TIG, and Double Pulse Aluminum welding. This machine is suitable for both beginners and experienced professionals for a wide range of repair and fabrication tasks.
Figure 1: HITBOX HIM250DPP Welding Machine and included accessories.
Key Features:
- 8-in-1 Multi-Function: Supports SYN Gas MIG, Spool Gun MIG (not for aluminum), SYN Gasless MIG, Dual Pulse MIG, Single Pulse MIG, MMA, Lift TIG, and Spot Welding (time adjustable, interval adjustable).
- 4.3" High Clear LED Screen: Provides great visuals for outdoor working environments with synergy control and user-friendly interface.
- Smooth Wire Feeding: Equipped with a quality wire feeder, compatible with 2-10 lbs welding wire.
- Security & Durability: Features High Integration MCU, Premium Fan, Overcurrent Protection, Overvoltage Protection, Overheating Protection, and Overload Protection. Fan on Demand ensures efficient cooling.
- Wide Material Compatibility: Capable of welding Carbon steel, Iron, Galvanised sheet, Stainless steel, Copper, and Aluminium.
2. Safety Information
Always prioritize safety when operating welding equipment. Read and understand all safety warnings and instructions before use. Failure to do so may result in electric shock, fire, serious injury, or death.
General Safety Precautions:
- Wear appropriate personal protective equipment (PPE) including welding helmet, gloves, protective clothing, and safety shoes.
- Ensure adequate ventilation to avoid inhaling welding fumes.
- Keep a fire extinguisher nearby.
- Do not operate the machine in wet conditions or near flammable materials.
- Ensure proper grounding of the welding machine.
- Disconnect power before performing any maintenance or changing accessories.
3. Setup
3.1 Component Identification
Figure 2: Front Panel Layout
Figure 3: Rear Panel Layout
3.2 Wire Spool Installation
- Open the side panel of the welding machine.
- Place the welding wire spool onto the spindle.
- Feed the welding wire through the wire feeder mechanism. Ensure it is properly seated in the drive rollers.
- Close the side panel.
Figure 4: Wire Spool Installation
3.3 Cable Connections
The connection method varies depending on the welding process. Refer to the diagrams below for correct setup.
Figure 5: Welder Cable Connections for various modes.
- MIG Gas (GMAW): Connect the ground clamp to the '+' terminal and the MIG torch to the '-' terminal. Connect the gas hose to the 'AIR IN' port on the rear panel.
- MIG Flux Cored (FCAW) / Gasless MIG: Connect the ground clamp to the '-' terminal and the MIG torch to the '+' terminal. No gas connection is needed.
- MMA (Stick Welding): Connect the electrode holder to the '+' terminal and the ground clamp to the '-' terminal.
- Lift TIG: Connect the TIG torch to the '-' terminal and the ground clamp to the '+' terminal. (Note: TIG torch is not included and must be purchased separately). Connect the gas hose to the 'AIR IN' port on the rear panel.
- Spot Welding: Refer to the specific connection for MIG Gas or MIG Flux Cored depending on your setup.
Video 1: Product demonstration showing wire feeding, connections, and screen operation.
4. Operating Instructions
4.1 Power On and Mode Selection
- Ensure all connections are secure.
- Turn on the waterproof switch located on the rear panel.
- The 4.3" LED screen will power on.
- Use the 'Function selection' button (Enter/Exit button) and 'Setting knob' to navigate through the welding modes (MIG, Single Pulse MIG, Double Pulse MIG, Lift TIG, MMA).
Figure 6: Available Welding Modes
4.2 Parameter Adjustment (Synergic MIG Welding)
The synergic mode simplifies operation, allowing beginners to achieve clean welds. Follow these steps:
- Choose Welding Mode: Select the desired MIG mode (e.g., Gas MIG, Gasless MIG, Single Pulse MIG, Double Pulse MIG).
- Choose Wire Diameter: Adjust the wire diameter setting on the screen using the 'Parameter Adjusting knob'.
- Adjust Feeding Speed (Current): Fine-tune the wire feeding speed, which directly correlates to the welding current.
- Additional Adjustments: Depending on the mode, you can adjust parameters like voltage trimming, inductance, spot welding time, and intermittent time. For Double Pulse MIG, you can also adjust peak current, percentage of base current, dual pulse frequency, and dual pulse duty cycle.
Figure 7: Synergic MIG Welding Process
Figure 8: Detailed Screen Settings for Various Welding Modes
4.3 Welding Applications
The HIM250DPP is suitable for a variety of materials and applications:
- Materials: Carbon steel, Iron, Galvanised sheet, Stainless steel, Copper, Aluminium, Mild Steel, Cast Iron, Square Pipe, Sheet Metal.
- Applications: Beginners/Hobbyist projects, Auto Body Repairs, Home Shop Work, Farm Repairs.
Figure 9: Weldable Materials
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your welding machine.
5.1 Daily Maintenance:
- Clean the machine exterior with a dry cloth.
- Check all cables and connections for wear or damage. Replace any damaged parts immediately.
- Ensure the cooling fan is free from obstructions.
5.2 Periodic Maintenance:
- Clean the wire feeder mechanism to prevent wire jamming.
- Inspect the MIG torch nozzle and contact tip for wear. Replace as needed.
- Check the gas hose for leaks (if using gas MIG).
- For internal cleaning, consult a qualified technician.
6. Troubleshooting
This section provides solutions to common issues. For problems not listed here, contact customer support.
Common Issues and Solutions:
- No Power: Check the power input cable, the waterproof switch, and the circuit breaker.
- Poor Arc Start/Unstable Arc: Ensure proper grounding, check electrode/wire condition, verify correct parameter settings for the material and process.
- Wire Feeding Issues: Check for tangled wire, correct wire spool installation, proper tension on the wire feeder rollers, and clear liner in the MIG torch.
- Overheat Protection Activated: Allow the machine to cool down. Ensure the fan is operating and not obstructed. Reduce duty cycle or welding current if continuously overheating.
7. Specifications
| Feature | Specification |
|---|---|
| Brand Name | HITBOX |
| Model Number | HIM250DPP |
| Use | MIG WELDER (Gas/Gasless, MMA, Lift TIG, Double Pulse Aluminum) |
| Input Voltage | AC220V-240V |
| Output Current | 180A (Max) |
| Weight | 17.5kg |
| Certification | CE |
| Is Smart Device | No |
| Origin | Mainland China |
| High-concerned chemical | None |
Durability and Testing:
The HITBOX HIM250DPP has undergone extensive testing to ensure reliability and performance. It has passed over 300+ laboratory tests, including:
- Vibration test
- Drop test
- Waterproof test
- Metal dust test
- Prolonged load test
- Conducted interference test
- High-low Temperature test
- Power switch durability test
- Water spray test
- Transportation simulation test
Figure 10: Product Testing Overview
8. User Tips
- Double Pulse Operation: The HIM250DPP supports real double pulse operation, which is particularly beneficial for welding aluminum, providing better control and aesthetics.
- Material Selection: Always ensure the correct welding mode and parameters are selected for the specific material and thickness you are working with.
- Practice: If you are new to welding, practice on scrap pieces to get a feel for the machine and settings before working on your main project.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the manufacturer or your authorized dealer. Keep your purchase receipt as proof of purchase.
