Güde Uni-Mig 165 SYN is a multi-process inverter welder for hobby-professional use, with adjustable welding current 20–160 A, single-phase 230 V supply, synergic wire feed and IGBT inverter technology. It handles MIG/MAG, flux-cored, electrode (MMA) and TIG (with optional kit). Distributed in Italy by Krollit, official Güde distributor since 2007.
- Processes: MIG/MAG, flux-cored, electrode (MMA), TIG optional
- Welding current: 20–160 A
- Supply: 230 V single-phase, 50 Hz
- Max. input power: 6.9 kVA
- Duty cycle at max. current: 30% (MIG/MAG and TIG), 15% (MMA)
- IGBT inverter technology with continuous adjustment
- Wire feed with synergic function
- Recommended material thickness: 1–10 mm
- Wire diameter (steel): 0.6–1.0 mm
- Max. wire spool: 5 kg (small spools and D200)
- Torch: MB15 3 m with Euro connector
- Net weight: 11.1 kg
Who uses the Uni-Mig 165 SYN and what for
A compact machine designed for advanced hobbyists, small workshops, maintenance staff and self-repair enthusiasts working steel in thicknesses from 1 to 10 mm. The 230 V single-phase supply makes it connectable to the domestic mains, with no need for three-phase. Switching from MIG/MAG to MMA electrode, up to TIG with the optional kit, covers repairs, small fabrications, work on thin sheets and jobs on frames and light structures. IGBT inverter technology and the HOT-START, ARC-FORCE and ANTI-STICK functions help beginners achieve stable results.
Synergic technology and IGBT inverter
The synergic wire feed automatically sets wire speed after selecting process, wire diameter and thickness, simplifying setup for the less experienced. IGBT inverter technology allows fast switching and precise current control, which reduces spatter on thin sheets. The thermal overload protection intervenes in case of overload, protecting the machine during extended use.
Krollit logistics and support
Shipping 3–5 working days from the Krollit warehouse, Monteforte Irpino (AV). Technical support in Italian at +39 0825-1494022. Original Güde spare parts available from stock.
Who the Uni-Mig 165 SYN is for
| Profile | Suitability | Reason |
| Advanced hobbyist and self-repair | Suitable | 230 V single-phase connectable to domestic mains, assisted functions for beginners |
| Small workshop and maintenance | Suitable | Thickness 1–10 mm and 4 processes in a compact 11.1 kg machine |
| Work on thin sheet metal | Suitable | IGBT inverter and continuous 20–160 A adjustment reduce spatter |
| Continuous production on thick steel | Not suitable | 30% duty cycle and spools max 5 kg not suited to intensive prolonged cycles |
Not suitable for: series production or long, continuous welds on heavy thicknesses, where a higher duty cycle and larger spools are needed, and for aluminium or light alloys without the optional TIG kit and dedicated gas.
General technical specifications
| Mains voltage | 230 V |
| Frequency | 50 Hz |
| Protection rating (IP) | 21S |
| Insulation class | H |
| No-load power | 46 W |
| Efficiency | 85% |
| Max. mains power (230V) | 6.9 kVA |
| Fuse, slow-blow | 16 A |
| No-load voltage | 60 V |
| Number of steps | Continuous |
| Thermal overload protection | Yes |
Welding capacity
| Max. welding current (230V) | 160 A |
| Welding current range | 20–160 A |
| Duty cycle at max. current | 30% |
| Recommended material thickness | 1–10 mm |
| Wire diameter (flux-cored) | 0.9 mm |
| Wire diameter (steel) | 0.6–1.0 mm |
| Max. wire spool | 5 kg |
Parameters per process
| Process | Current range | Duty cycle | Notes |
| MMA (electrode) | 20–160 A | 15% | HOT-START, ARC-FORCE, ANTI-STICK; electrodes 1.5–4.0 mm |
| MIG/MAG | 50–160 A | 30% | Synergic wire feed |
| TIG (optional) | 20–160 A | 30% | Requires kit 41690 |
Dimensions and weight
| Dimensions (LxWxH) | 400 x 190 x 300 mm |
| Packaging dimensions (LxWxH) | 480 x 380 x 350 mm |
| Torch length | 3 m |
| Net weight | 11.1 kg |
| Gross weight | 12.7 kg |
| GTIN | 4015671005052 |
| Article number | 20077 |
Standard equipment
- MB15 torch 3 m with Euro connector
- Earth cable 1.2 m with earth clamp
- Electrode holder 1.8 m
- Contact tip (0.8 mm)
- 1 gas nozzle
- Pressure regulator with 2 gauges
- Gas hose
- Welding shield
- Slag hammer with brush
- Powder-coated steel sheet housing
- Thermal overload protection
Optional accessories
| Code | Description |
| 20038 | Welding trolley |
| 16921 | Automatic welding helmet GSH-TC-2 |
| 16922 | Automatic welding helmet GSH-K |
| 16924 | Automatic welding helmet GSH 180-TC-2 |
| 16975 | 5-finger welding gloves 6120 |
| 41690 | Complete TIG welding kit |
Frequently asked questions
Does the Uni-Mig 165 SYN work with a normal 230 V domestic socket?
Yes. The machine runs on 230 V single-phase with a 16 A slow-blow fuse, so it is connectable to the domestic mains. Max. input power is 6.9 kVA, a value to check against the available meter.
For intensive work it is worth ensuring the installation can handle the peak draw. The 30% duty cycle in MIG/MAG indicates cycles suited to discontinuous work and repairs, not continuous production. For questions about the installation: +39 0825-1494022.
Which welding processes are ready to use at purchase?
Ready as standard are MIG/MAG, flux-cored and electrode (MMA), with current 20–160 A. TIG is possible only by adding the optional kit 41690.
In MMA mode it handles electrodes from 1.5 to 4.0 mm with HOT-START, ARC-FORCE and ANTI-STICK functions. The synergic wire feed automatically sets the speed after selecting process, wire diameter and thickness, simplifying MIG/MAG use even for the inexperienced.
What steel thickness can it weld?
Recommended material thickness is 1–10 mm, with current continuously adjustable from 20 to 160 A. It is suited to thin sheets and repair work on medium thicknesses.
IGBT inverter technology allows precise current control, useful on thin sheets where it reduces spatter. For heavy thicknesses in continuous production a model with a higher duty cycle and larger spools is preferable.
Which wire spools does it accept?
It accepts small spools and D200 plastic spools up to 5 kg, with steel wire from 0.6 to 1.0 mm and flux-cored wire of 0.9 mm. It is supplied as standard with a 0.8 mm contact tip.
The wire feed with synergic function maintains a constant speed matched to the selected diameter, reducing the jams typical of imprecise manual settings on light spools.
How do service and spare parts work in Italy?
Technical support is in Italian, and original Güde spare parts are available from the Krollit warehouse in Monteforte Irpino (AV). Support: +39 0825-1494022.
The MB15 torch with Euro connector and standardised accessories (nozzles, contact tips) use widely available consumables. The powder-coated steel sheet housing and thermal overload protection make extended workshop use easier.