1. Product Overview
The HITBOX HBT2000P is a versatile 200Amp IGBT inverter welding machine designed for TIG, Stick (MMA/ARC), Pulse TIG, and Cold TIG welding. It operates at a high frequency of up to 100KHZ, making it suitable for a wide range of materials including stainless steel, alloy steel, low carbon steel, copper, cast iron, and chromium. The unit features automatic overheat and overcurrent welding protection for reliable operation.

Key Features:
- Multi-Process Welding: Supports Cold TIG, TIG, MMA (Stick), and TIG Pulse.
- IGBT Inverter Technology: Ensures stable arc, high efficiency, and energy saving.
- Advanced Cold TIG Function: Minimizes heat input, reducing material deformation and damage, resulting in beautiful and flat weld seams.
- Spot Welding Time Control: Adjustable from 1-900 ms for precise spot welding.
- Downslope Function: Helps decrease current linearly to protect the weld surface and create clean finishes.
- Dual Voltage Capability: Operates on 220V.
- Safety Protections: Automatic overheat and overcurrent protection.

Applications:
This welder is suitable for a wide range of materials and industries, including:
- Materials: Iron, Stainless Steel, Sheet Metal, Rebar, Carbon Steel, Metal Cages.
- Industries: Hotels, Garment Shops, Building Material Shops, Machinery Repair Shops, and general DIY electrical projects.

2. Safety Instructions
Always prioritize safety when operating welding equipment. Failure to follow safety precautions can result in serious injury or death.
General Safety Precautions:
- Eye and Face Protection: Always wear a welding helmet with appropriate shade lenses to protect against arc flash and sparks.
- Body Protection: Wear flame-resistant clothing, heavy-duty gloves, and safety shoes. Avoid synthetic fabrics.
- Ventilation: Ensure adequate ventilation to remove welding fumes and gases from the work area.
- Fire Prevention: Keep a fire extinguisher nearby. Remove all flammable materials from the welding area.
- Electrical Safety: Ensure the machine is properly grounded. Do not operate in wet conditions. Inspect cables and connections for damage before use.
- Gas Cylinders: Secure gas cylinders to prevent tipping. Use appropriate regulators and hoses.
- Work Area: Keep the work area clean and free of clutter. Ensure good lighting.
- Children and Bystanders: Keep unauthorized personnel, especially children, away from the welding area.
3. Package Contents
Upon unpacking, verify that all the following items are included:

- 1 x HITBOX HBT2000P Welder Unit
- 1 x TIG Torch (400cm/157.4in)
- 1 x Earth Clamp (205cm/80.7in)
- 1 x Electrode Holder (313cm/123.2in)
- 1 x Gas Tube (Hose)
- 1 x 110V To 220V Adapter Cable
- Hose Adjusters
- Gas Nozzles (various sizes, e.g., #4, #5, #6)
- Collet Body
- Collets
- Short Torch Tail
- Long Torch Tail
- Tungsten Bar (Tungsten Needles)
- Ceramic Nozzles
- Conductive Nozzle
4. Specifications
| Parameter | Value |
|---|---|
| Rated Input Voltage | 220V (220V±15%) |
| Frequency | 50/60 HZ |
| 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 ~ 200 |
| Welding Voltage Adjust Range (V) | 10 ~ 26 |
| No Load Voltage (V) | 50V (adjustable) |
| Rated Duty Cycle @40°C (TIG) | 60% |
| Rated Output Current | 160A |
| Rated Output Voltage | 25V |
| Power Factor | 0.73 |
| Efficiency | 80% |
| Insulation Class | F |
| Protection Class | IP21S |
| Weight | 12 KG |
5. Setup Instructions
5.1. Machine Connections

- Power Connection: Connect the welder to a 220V power supply using the provided power cable. If necessary, use the 110V to 220V adapter cable. Ensure the waterproof switch is in the OFF position before connecting.
- Earth Clamp: Connect the earth clamp cable to the negative (-) terminal on the front panel. Attach the clamp securely to the workpiece.
- Electrode Holder (MMA/Stick): For MMA welding, connect the electrode holder cable to the positive (+) terminal.
- TIG Torch: For TIG welding, connect the TIG torch cable to the positive (+) terminal.
- Gas Interface: Connect the gas hose from your inert gas cylinder (e.g., Argon) to the gas interface on the rear panel. Ensure all connections are tight to prevent gas leaks.
- Cold Welding Helmet Interface: If using a compatible cold welding helmet, connect it to the designated interface on the rear panel.
5.2. Tungsten Electrode Preparation (TIG/Cold TIG)
Proper preparation of the tungsten electrode is crucial for stable arc and quality welds. Refer to the table below for guidance:

| Tungsten electrode diameter/mm | Sharpened electrode diameter/mm | Angle of cone (°) | Background current/A |
|---|---|---|---|
| 1.0 | 0.125 | 12 | 2 ~ 15 |
| 1.0 | 0.25 | 20 | 5 ~ 30 |
| 1.6 | 0.5 | 25 | 8 ~ 50 |
| 1.6 | 0.8 | 30 | 10 ~ 70 |
| 2.4 | 0.8 | 35 | 12 ~ 90 |
| 2.4 | 1.1 | 45 | 15 ~ 150 |
| 3.2 | 1.1 | 60 | 20 ~ 200 |
6. Operating Instructions
6.1. Control Panel Overview

The control panel features a digital display, mode selection buttons (Cold TIG, TIGP, TIG, MMA), and an adjustment knob for various parameters. Key indicators include:
- Ip: Peak current
- Tup: Up-slope time
- Idown: Down-slope current
- Tpost: Post-flow time
- Is: Base current
- Twelding: Welding time
- Ttakt: Pulse frequency
- Hz: Pulse frequency unit
- %: Duty cycle unit
- 2T/4T: Torch trigger mode selection
6.2. Welding Modes

6.2.1. Cold TIG Welding
Cold TIG is ideal for thin materials and applications where minimal heat input is desired. It reduces deformation and discoloration.
- Spot Welding Time: Adjustable from 1-900 ms.
- Benefits: Small damage to base material, not easy to deformation, accurate arc point energy, beautiful and flat welding seam, easy to operate, low cost of use.
- Welding Thickness: 0.2-6mm.
- Tungsten Diameter: 3.2/2.4/1.6/1.0 mm.
6.2.2. TIG & Pulse TIG Welding
For general TIG welding and pulsed TIG for enhanced control and reduced heat input.
- Current Range: 10-200A.
- Tungsten Diameter: 3.2/2.4/1.6/1.0 mm.
- Welding Thickness: 0.2-6mm.
- 2T (Manual): Press and hold the torch trigger to weld, release to stop. Suitable for re-tack welding.
- 4T (Semi-auto): Press and release to start, press and release again to stop. Ideal for welding medium thickness plates and longer welds.
- Downslope Function: Use the 'Idown' and 'Tpost' settings to control the arc termination and gas post-flow.
6.2.3. MMA (ARC/Stick) Welding
For traditional stick electrode welding.
- Current Range: 10-180A.
- Electrode Diameter: 4.0/3.0/2.0/1.6 mm.
- Welding Thickness: 1-8 mm.
- Features: Smooth Arc, Hot Start (eases arc ignition), Anti Stick (prevents electrode sticking), Arc Force (maintains arc stability).


7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your welding machine.
7.1. Daily Maintenance:
- Inspect all cables and connections for wear or damage. Replace any damaged parts immediately.
- Clean the torch nozzle and collet body.
- Check the gas hose for leaks.
- Ensure the cooling fan is free from obstructions.
7.2. Weekly/Monthly Maintenance:
- Clean the machine's exterior with a dry, soft cloth.
- Use compressed air to blow out dust and debris from inside the machine (ensure power is disconnected).
- Inspect the internal components for any signs of overheating or loose connections.
- Check and sharpen tungsten electrodes as needed.
Caution: Always disconnect the power supply before performing any maintenance or cleaning inside the machine.
8. Troubleshooting
This section provides solutions to common issues you might encounter.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to the machine | Power switch off, loose power cable, circuit breaker tripped | Turn on power switch, check cable connections, reset circuit breaker |
| No arc ignition (TIG) | No gas flow, contaminated tungsten, incorrect settings, poor ground connection | Check gas supply/flow, clean/sharpen tungsten, verify settings, ensure good ground |
| Poor weld quality / excessive spatter (MMA) | Incorrect current, wrong electrode, dirty workpiece, improper technique | Adjust current, use correct electrode, clean workpiece, refine welding technique |
| Overheat indicator on | Exceeded duty cycle, blocked ventilation | Allow machine to cool down, clear ventilation openings |
| Gas flow issues | Empty gas cylinder, regulator malfunction, hose leak, clogged nozzle | Replace cylinder, check regulator, inspect hose for leaks, clean nozzle |
9. User Tips
- Practice Makes Perfect: Welding requires practice. Start with scrap materials to get a feel for the machine and different settings before working on critical projects.
- Cleanliness is Key: Always ensure your workpiece is clean and free of rust, paint, or oil for the best weld quality.
- Tungsten Selection: Choose the correct tungsten electrode type and size for your material and current. Sharpening it correctly is vital for TIG welding.
- Gas Coverage: Ensure adequate gas flow for TIG welding to prevent contamination of the weld puddle.
- Read the Manual: Familiarize yourself with all functions and safety warnings before operating.
10. Warranty & Support
10.1. Warranty Information
The HITBOX HBT2000P Cold TIG Welder comes with a 1-year warranty from the date of purchase. This warranty covers manufacturing defects and malfunctions under normal use. Please retain your proof of purchase for warranty claims.
10.2. Customer Support
For technical assistance, troubleshooting, or warranty inquiries, please contact HITBOX customer support:
- WhatsApp: +86 16670319604
- Email: li253161@qq.com
- WeChat: 18075717775
- Phone: 18075717775
When contacting support, please have your product model (HBT2000P) and a detailed description of the issue ready.





