1. Įvadas
1.1 Produktas baigtasview: Awelco UniMIG 250
The Awelco UniMIG 250 is a professional continuous wire welding machine designed for MIG, MAG, or MOG welding processes, with or without shielding gas. This unit utilizes an AC current generator to produce low voltage ir aukštas amperage, creating a voltaic arc that melts and joins metal pieces. The UniMIG 250 is engineered for high productivity and flexible application across various welding tasks. It incorporates a microprocessor board with advanced functions including Burn Back, Rampa, and Timer controls for precise welding operations. The machine is accessorized with a Micromax gas reducer and a direct Euro torch for comprehensive functionality.

1.1 paveikslas: The Awelco UniMIG 250 Professional Welder shown with included accessories, including the welding torch, ground clampir dujų reguliatorius.
1.2 Saugos informacija
Always prioritize safety when operating welding equipment. Failure to follow safety precautions can result in serious injury or death. Read and understand all safety warnings and instructions before use.
- Elektros šokas: Welding current can cause fatal electric shock. Ensure proper grounding, wear dry gloves, and insulate yourself from the workpiece and ground.
- Dūmai ir dujos: Welding fumes and gases can be hazardous to your health. Work in a well-ventilated area or use an approved respirator.
- Lanko spinduliai: Arc rays can burn eyes and skin. Wear a welding helmet with appropriate shade lenses and protective clothing.
- Gaisras ir sprogimas: Suvirinimo kibirkštys ir karštas metalas gali sukelti gaisrą arba sprogimą. Laikykite degias medžiagas atokiau nuo suvirinimo zonos. Turėkite po ranka gesintuvą.
- Karštos dalys: Welded materials and equipment can remain hot for a significant period after welding. Avoid contact with hot surfaces.
2. Sąranka
2.1 Išpakavimas ir patikrinimas
Carefully unpack the Awelco UniMIG 250 and all its components. Inspect the machine and accessories for any signs of shipping damage. If any damage is found, contact your supplier immediately. Retain all packaging materials for potential future transport or warranty claims.
2.2 Maitinimo jungtis
The UniMIG 250 requires a 3-phase power supply. Connect the machine to a 3 PH 50/60 Hz 230-400 V power source. Ensure the power outlet is properly grounded and capable of supplying the required power (Absorbed Power 60%: 5.7 KVA). Consult a qualified electrician if you are unsure about your power supply capabilities.
2.3 Gas Cylinder Connection
If performing MIG/MAG welding with shielding gas, connect the Micromax gas reducer to your shielding gas cylinder. Secure the regulator tightly to prevent leaks. Attach the gas hose from the regulator to the gas inlet connection on the rear of the welding machine. Ensure all connections are leak-free before opening the gas cylinder valve.
2.4 Vielos ritės montavimas
Open the wire spool compartment. The UniMIG 250 supports wire spools with diameters of 100 mm, 200 mm arba 300 mm, and a maximum weight of 15 kg. Install the appropriate welding wire spool onto the spindle, ensuring it rotates freely. Thread the wire through the wire feed mechanism and into the torch liner. The machine is compatible with:
- Steel wire: Ø0.6 - 1 mm
- Stainless Steel wire: Ø0.8 - 1 mm
- Aluminum wire: Ø0.8 - 1 mm
- Flux-cored wire: Ø0.8 - 1.2 mm
2.5 Degiklio ir įžeminimo jungtisamp Ryšys
Connect the Euro welding torch to the designated Euro connector on the front panel of the machine. Ensure it is securely fastened. Attach the ground clamp cable to the appropriate terminal on the machine and then securely clamp it to the workpiece, ensuring good electrical contact.

2.1 paveikslas: Priekyje view of the UniMIG 250 showing the Euro torch connected to the front panel.
3. Naudojimo instrukcijos
3.1 Valdymo skydas baigtasview
The UniMIG 250 features an intuitive control panel for setting welding parameters. Familiarize yourself with the display, menu buttons, and regulation dials.

3.1 paveikslas: Iš arti view of the UniMIG 250's digital display and menu buttons.

3.2 paveikslas: Iš arti view of the 'Power Regulation Fine' and 'Range' dials for precise control.
- Skaitmeninis ekranas: Rodo esamus suvirinimo parametrus.
- Meniu mygtukai: Used to navigate through settings and activate special functions.
- Power Regulation Dials (Fine & Range): These dials allow for precise adjustment of welding current and voltage. The machine offers 32 regulation steps tiksliam derinimui.
3.2 Suvirinimo parametrų nustatymas
Before welding, select the appropriate wire type and diameter. Adjust the wire feed speed and voltage according to the material thickness and wire type. The welding current can be set between 25 ir 240 Amperes. Refer to welding charts for recommended settings for your specific application.
3.3 Welding Process (MIG/MAG/MOG)
Ensure all safety precautions are in place. Position the torch correctly over the workpiece. Press the torch trigger to initiate the arc and begin welding. Maintain a consistent travel speed and torch angle for optimal weld quality. Release the trigger to stop welding.
3.4 Advanced Functions: Burn Back, Rampa, Timer
The UniMIG 250's microprocessor board provides advanced control features:
- Burn Back: Prevents the wire from sticking in the weld puddle at the end of a weld.
- Rampa (Slope): Controls the gradual increase or decrease of welding current at the start or end of a weld, improving arc stability and bead appearance.
- Laikmatis: Allows for precise control over weld duration, useful for spot welding or repetitive tasks.
Consult the detailed operational guide (if provided separately) for specific instructions on configuring and utilizing these advanced functions.
4. Priežiūra
Regular maintenance ensures the longevity and optimal performance of your Awelco UniMIG 250.
4.1 Bendras valymas
Periodically clean the exterior of the machine with a dry cloth. Ensure ventilation openings are free from dust and debris to prevent overheating. Do not use solvents or abrasive cleaners.
4.2 Torch Maintenance
Inspect the welding torch regularly. Clean or replace the contact tip, gas nozzle, and diffuser as needed. Ensure the torch liner is free from kinks and blockages to ensure smooth wire feeding.
4.3 Wire Feed System Inspection
Check the wire feed rollers for wear and tear. Clean any accumulated wire dust or debris from the wire feed mechanism. Ensure the tension on the wire feed rollers is correctly set for the wire diameter being used.
4.4 Gas System Check
Regularly check all gas connections for leaks using a leak detection spray. Ensure the gas regulator is functioning correctly and providing the desired gas flow rate.
5. Problemų sprendimas
This section addresses common issues you might encounter with your UniMIG 250.
- Nėra galios:
Check the main power supply connection. Ensure the circuit breaker has not tripped. Verify the machine's power switch is in the 'ON' position. - Be lanko:
Įsitikinkite, kad žemė klamp is securely attached to the workpiece and has good electrical contact. Check that the welding wire is feeding correctly and the contact tip is not clogged. Verify gas flow if using shielding gas. - Inconsistent Weld:
Adjust wire feed speed and voltage settings. Check for proper gas flow. Ensure the workpiece is clean and free of contaminants. Inspect the torch for worn parts. - Vielos tiekimo problemos:
Check wire spool installation and ensure it's not tangled. Verify wire feed roller tension is appropriate for the wire diameter. Inspect the torch liner for blockages or damage. - Perkaitimas:
The machine has an Insulation Class H and Protection Rating IP21. If the machine overheats, it may automatically shut down. Allow it to cool down. Ensure ventilation openings are clear and the duty cycle is not exceeded.
For persistent issues, contact Awelco customer support or a qualified service technician.
6. Techninės specifikacijos

6.1 paveikslas: Dimensions of the Awelco UniMIG 250 Welder.
| Specifikacija | Vertė |
|---|---|
| Modelio numeris | PR3795 |
| Network Voltage | 3 PH 50/60 Hz 230-400 V |
| Absorbed Power (60%) | 5.7 KVA |
| Be apkrovos ttage | 16–37 V |
| Suvirinimo srovės diapazonas | 25–240 A |
| Regulation Steps | 32 |
| Darbo ciklas (25 %) | 240 A |
| Darbo ciklas (60 %) | 180 A |
| Darbo ciklas (100 %) | 140 A |
| Wire Spool Diameter | Ø 100 - 200 - 300 mm |
| Max Wire Spool Weight | 15 kg |
| Compatible Wire (Steel) | Ø0.6 - 1 mm |
| Compatible Wire (Stainless Steel) | Ø0.8 - 1 mm |
| Compatible Wire (Aluminum) | Ø0.8 - 1 mm |
| Compatible Wire (Flux-cored) | Ø0.8 - 1.2 mm |
| Izoliacijos klasė | H |
| Apsaugos įvertinimas | IP21 |
| Matmenys (I x P x A) | 75.5 x 36.5 x 90.5 cm |
| Svoris | 79 kg |
| ASIN | B005HVV506 |
7. Garantija ir palaikymas
For warranty information, please refer to the documentation provided with your purchase or contact your retailer. Awelco strives to provide reliable products; however, if you encounter any issues, please reach out to their customer support.
Regarding spare parts, the availability information is currently unavailable. Please contact Awelco directly for inquiries about replacement components or service.