Ronch 250 MP
The Ronch 250 MP is a 250 A multi-process welding equipment that works with MIG (GMAW), TIG (Lift), and MMA/Stick. It incorporates PFC with a power factor of ≈0.99, MCU control, electronic protections, and a wide single-phase input (90–275 V, 50/60 Hz) covering 110 V and 220 V.
- Download the Specs Sheet
- Download the User's Manual
- Request the service manual
In countries where manufacturing, metalworking, food and beverage, construction, and maintenance coexist, welding equipment that adapts to changing projects is key. The Ronch 250 MP is a good choice to meet those requirements.
Technical specifications of the Ronch 250 MP
| Feature | Parameter | |||||
|---|---|---|---|---|---|---|
| Input voltage (V) | 1Phz 90-275V±10% | |||||
| Frequency (Hz) | 50/60 | |||||
| Nominal input power (kW) | 1-110/120/130±10% | 1-220/230/240±10% | ||||
| Nominal input voltage (A) | MIG | MMA | TIG | MIG | MMA | TIG |
| 4.6 | 4.2 | 3.0 | 8.3 | 9.2 | 6.4 | |
| 42 | 40 | 26.5 | 37 | 41 | 28.5 | |
| Work cycle (40°C 10 min) | 30%160A | 35%130A | 35%140A | 35% 250A | 30%250A | 35%250A |
| 60%115A | 60%100A | 60%110A | 60%195A | 60%180A | 60%195A | |
| 100%90A | 100%80A | 100%85A | 100%150A | 100%140A | 100%150A | |
| No-load voltage (V) | 68 MIG / 45 TIG / 50 STICK | |||||
| Input voltage (A) | 40 - 250 | |||||
| Voltage range (A) | 14~26.5 | |||||
| Efficiency (%) | 80 | |||||
| Dimensions (mm) | 618 / 240 / 445 | |||||
| Wire diameter | 0.6 / 0.8 / 1.0 | |||||
| Net weight (kg) | 23 | |||||
| Power Factor | 0.99 | |||||
| Refrigeration | AF | |||||
| Insulation class | H | |||||
| Protection Class | IP23 | |||||
Benefits of having reliable multi-process welding equipment
- Immediate flexibility: With multi-process equipment, you can switch from MIG to TIG to Stick without moving multiple power sources. This is ideal when the same work order includes Stick tacking, MIG filling, and TIG finishing.
- Better use of energy (PFC): PFC is associated with lower input current and more efficient use of available power—a benefit that is documented in manufacturers’ catalogs. For the user, this means greater stability and compatibility with “fair” networks (always taking care of protections and cable gauges).
- Fine finishes in TIG (Lift): TIG stands out for its clean welds, with almost no spatter and zero slag. It is the process of choice for stainless steel or when the weld bead is visible. (AC/DC is required for aluminum TIG welding; in this equipment, aluminum is welded using MIG + Spool Gun).
- Production performance with MIG: MIG/MAG offers higher deposition rates and speed. With a 15 kg spool, you reduce coil changes and maintain pace on long runs.
- Outdoor work with Stick: Stick is less sensitive to wind and less-than-ideal surfaces, so it works very well in field maintenance, construction, and civil engineering.
- Protections = continuity: The set of electronic protections plus Protect 440 V helps prevent shutdowns due to overtemperature or power surges and protects your investment.
Sectors where a Ronch 250 MP multiprocessing equipment adds the most value
Metalworking: manufacturing of cabinets, light structures, supports, tools; MIG speeds up and TIG polishes details.
Food and beverage/pharmaceutical (stainless steel): visible parts, counters, piping, and accessories with TIG for clean welds.
Metal construction and industrial maintenance: Stick for exterior and repair; MIG/TIG for visible parts or fine tolerances.
Transportation and bodywork: profiles and thin sheet metal; the combination of MIG (productivity) and TIG (finish) is very useful.
HVAC and metalwork: ductwork, frames, railings, and metal furniture.
Frequently asked questions about the Ronch 250 MP
1. Does the 250 MP perform AC TIG welding for aluminum?
No. It is DC TIG (Lift). AC/DC is required for aluminum TIG welding; with the 250 MP, aluminum is welded by MIG using a Spool Gun.
2. Does it include a Spool Gun?
It is not standard; it is offered as an option. It is recommended for reliable feeding of aluminum wires.
3. Does it work with 110 V and 220 V?
Yes. It has a 90–275 V (50/60 Hz) input and PFC with a power factor of ≈0.99.
4. What are the duty cycles?
At 220–240 V, the plug indicates 100%: 150/150/140 A, 60%: 195/195/180 A, and up to 250 A at 30–35% (MIG/TIG/Stick).
5. What protections does it have?
Temperature, voltage, current sensor, and Protect 440 V for input spikes.
6. What wire diameters does it support and what reel?
0.6/0.8/1.0 mm and 15 kg reel.
7. Can it be used outdoors in windy conditions?
For these conditions, Stick performs better than MIG/TIG as it is self-protected (no gas).
8. Is it synergistic in MIG?
The panel indicates manual controls (voltage/speed/current; Arc Force/Down Slope); the specifications do not list it as synergistic.
9. How much does it weigh and what are its dimensions?
Approx. 23 kg and 618×240×445 mm; IP23; Class H.
