1. Introduction
The PATON ProMIG 350A is a professional 3-in-1 inverter welding machine designed for MIG/MAG, MMA, and TIG DC welding processes. This unit features a 400V input, a 15-4 wire feeder, and an advanced 4-roller wire feeding system, ensuring precise and stable wire delivery. With a robust 70% duty cycle at 350A, it is suitable for intensive and continuous industrial applications. Its compact design and cutting-edge technology provide reliability and high performance for various welding tasks, including pulse welding and gasless welding.
Image: Overview of the PATON ProMIG series, highlighting professional welding equipment.
2. Safety Information
Always prioritize safety when operating welding equipment. Failure to follow safety guidelines can result in serious injury or death.
- 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, gloves, and safety shoes to protect against burns and electrical shock.
- Ventilation: Ensure adequate ventilation to remove welding fumes, which can be hazardous to health.
- Electrical Safety: Never operate the welder in wet conditions. Ensure proper grounding and inspect cables for damage before use.
- Fire Prevention: Keep a fire extinguisher nearby. Remove flammable materials from the welding area.
- Gas Cylinders: Secure gas cylinders properly and handle them with care.
- Read the Manual: Familiarize yourself with all instructions and warnings in this manual before operating the equipment.
3. Package Contents
Verify that all items listed below are included in your package:
- PATON ProMIG 350 Welding Equipment
- PATON BPI 15-4 Wire Feeder
- ABICOR BINZEL MB24 Welding Torch 3m
- Electrode Holder 3m
- Ground Clamp 3m
- Wire Feeder Rollers: 4x(0.8 - 1.0), 4x(1.2 - 1.6)V, 4x(0.8 - 1.0)U
- Carrying Strap
- Gas Quick Connector
- Instruction Manual
Image: Visual representation of the PATON ProMIG 350 welding kit components.
4. Product Features
- 3-in-1 Multi-Process: Supports MIG/MAG, MMA, and TIG DC welding modes for versatile applications.
- High Duty Cycle: Delivers 350 Amps at a 70% duty cycle, allowing for extended welding on thick industrial materials without interruption.
- Advanced 4-Roller Wire Feeder: Ensures ultra-precise wire delivery, compatible with 5kg, 15kg, and 18kg spools.
- Pulse Welding Function: Enhances precision and weld quality, reducing deformation for clean and uniform results.
- Gasless Welding Capability: Offers flexibility for welding with flux-cored wire in outdoor or challenging environments.
- Intuitive Digital Control Panel: Features a clear display and easy-to-use controls for optimal operation, even for less experienced users.
- Memory for Settings: Allows saving and quickly recalling favorite parameter configurations, simplifying setup for repetitive tasks.
- Robust Internal Components: Equipped with high-quality components such as Italian Kendeil capacitors, German Infineon power transistors, and internal protection systems against short-duration overvoltage and overheating.
- Quadro Drive Wire Feeder: Detachable wire feeder designed for maximum precision and reliability, ensuring uniform wire feeding.
Image: Close-up view of the intuitive digital control panel, showing welding parameters.
Image: Diagram illustrating the 70% duty cycle for maximum productivity.
Image: Illustration of the Quadro Drive wire feeder, showing its precision mechanism and spool compatibility.
5. Setup
- Unpacking: Carefully remove all components from the packaging. Inspect for any shipping damage.
- Power Connection: Connect the welding unit to a suitable 400V power supply. Ensure the power source meets the welder's requirements as specified in the technical data.
- Wire Feeder Installation: Connect the PATON BPI 15-4 wire feeder to the main welding unit. Ensure all connections are secure.
- Wire Spool Loading: Open the wire feeder compartment and load the appropriate wire spool (5kg, 15kg, or 18kg). Thread the wire through the feeder rollers according to the instructions on the unit.
- Welding Torch and Ground Clamp: Connect the ABICOR BINZEL MB24 welding torch to the designated port on the wire feeder. Attach the electrode holder and ground clamp to their respective terminals on the main unit.
- Gas Connection (for MIG/MAG): If performing MIG/MAG welding with shielding gas, connect the gas quick connector to a suitable gas cylinder (e.g., Argon, CO2, or mixed gas) and then to the welding unit. Ensure the gas flow rate is set correctly.
- Initial Checks: Before powering on, double-check all connections, ensure the work area is clear, and put on all necessary personal protective equipment.
Image: The wire feeder compartment open, showing the wire spool and roller mechanism for loading.
6. Operating Instructions
- Power On: Turn on the main power switch of the welding unit. The digital display will illuminate.
- Mode Selection: Use the control panel to select the desired welding mode: MIG/MAG, MMA, or TIG DC.
- Parameter Adjustment:
- MIG/MAG: Adjust voltage, wire feed speed, inductance, and pulse settings (if applicable).
- MMA: Adjust welding current, Hot-Start, Arc-Force, and Anti-Stick functions.
- TIG DC: Adjust welding current, pulse frequency, and gas pre/post-flow.
Refer to the specific welding process guidelines for recommended parameter ranges based on material type and thickness.
- Test Gas (MIG/MAG): Press the 'Test Gas' button to check gas flow without striking an arc.
- Wire Install (MIG/MAG): Use the 'Wire Install' function to feed the wire through the torch without welding.
- Start Welding: Position the workpiece, ensure proper grounding, and initiate the welding process according to the selected mode and technique.
- Saving Settings: Utilize the memory function to save frequently used welding parameters for quick recall.
Image: The PATON ProMIG 350A welding unit with the wire feeder connected, ready for operation.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your PATON ProMIG 350A welder.
- Daily:
- Inspect all cables and connections for wear or damage.
- Clean the welding torch nozzle and contact tip.
- Check gas lines for leaks (if applicable).
- Weekly/Monthly:
- Clean the wire feeder rollers and guide tubes. Replace if worn.
- Remove dust and debris from the welder's cooling vents using compressed air.
- Check the ground clamp and electrode holder for good contact.
- Periodically:
- Have the unit inspected by a qualified technician for internal cleaning and component checks.
Always disconnect the welder from the power supply before performing any maintenance or cleaning.
8. Troubleshooting
This section addresses common issues you might encounter with your welding machine.
| Problem | Possible Cause | Solution |
|---|---|---|
| Welder does not power on | No power from mains; faulty power cable; internal fuse blown. | Check power supply and circuit breaker. Inspect power cable. Contact service if fuse is suspected. |
| No welding arc | Poor ground connection; incorrect welding parameters; faulty torch/electrode holder; wire feed issue (MIG). | Ensure good ground contact. Adjust parameters. Check torch/holder connections. Verify wire feed. |
| Wire feed issues (MIG) | Kinked wire; worn/incorrect feeder rollers; clogged liner; incorrect tension. | Check wire path. Replace rollers if needed. Clean or replace liner. Adjust roller tension. |
| Poor weld quality | Incorrect parameters; improper technique; contaminated material; insufficient gas shielding (MIG/TIG). | Adjust parameters. Improve welding technique. Clean workpiece. Check gas flow and connections. |
| Overheating warning | Exceeded duty cycle; blocked ventilation; high ambient temperature. | Allow unit to cool down. Clear ventilation openings. Operate in a cooler environment. |
If you encounter problems not listed here or if the suggested solutions do not resolve the issue, please contact PATON customer support.
9. Specifications
| Parameter | Value |
|---|---|
| Mains Voltage 50/60 Hz | 3·400 V |
| Rated Welding Current | 350 A |
| Maximum Welding Current | 450 A |
| Required Rated Mains Current | 16A |
| Duty Cycle, % | 70% at 350 A / 100% at 290 A |
| Input Voltage Range | ±15% V |
| Welding Current Range | 16 – 350 A |
| Welding Voltage Range | 12 – 30 V |
| Wire Speed Range | 2.0 – 16 m/min |
| Coated Electrode Diameter | 1.6 – 6.0 mm |
| Number of Pressure Rollers | 4 |
| Solid Wire Diameter | 0.6 – 1.4 mm |
| Maximum Spool Weight | ≤18 kg |
| Pulse Welding Process | MMA/TIG/MIG/MAG |
| Hot-Start Function in MMA Mode | Adjustable |
| Arc-Force Function in MMA Mode | Adjustable |
| Anti-Stick Function in MMA Mode | Automatic |
| Open Circuit Voltage Reduction | On / Off |
| Open Circuit Voltage | 12 / 75 V |
| Arc Ignition Voltage | 110 V |
| Rated Power Consumption | 7.9 – 8.6 kVA |
| Maximum Power Consumption | 11 kVA |
| Energy Efficiency | 90% |
| Cooling | Automatic |
| Operating Temperature Range | -25 – +45 °C |
| Dimensions, mm | 540 x 360 x 400 |
| Weight | 23.9 kg |
| Protection Class | IP 33 |
Image: Detailed technical specifications table for the PATON ProMIG 350A.
10. Warranty and Support
The PATON ProMIG 350A welding machine comes with a 3-year manufacturer's warranty, providing peace of mind regarding its reliability and performance. For any technical assistance, warranty claims, or further inquiries, please contact PATON customer support.
You can find more information and support resources by visiting the official PATON store: PATON Official Store







