Ronch 280 MAX
The Ronch 280 MAX is a welding equipment that provides stability, electrical safety, and versatility in a single inverter source. It combines TIG (Lift DC) for hygienic/aesthetic finishes with MMA/Stick for exteriors and structural joints, integrates a digital display and functions such as VRD, Hot Start, Arc Force, and Anti-Sticking, and comes prepared for generators and input voltage spikes.
- Download the Specs Sheet
- Download the User's Manual
- Request the service manual
The Ronch 280 MAX is just what you need when switching between the workshop and the job site, for the food and beverage, metalworking, oil & gas, construction, and maintenance industries.
Technical specifications of the Ronch 280 MAX
| Feature | Value | |
|---|---|---|
| Input power (V) | 1-220/230/240±10% | |
| Nominal input power (KW) | 13.3 MMA / 9.5 TIG | |
| Rated input power (A) | 57.8 MMA / 41.5 TIG | |
| Work cycle (40ºC 10min) | 180A a 100% ~ 230A a 60% | |
| Current range (A) | 20~250 | |
| No-load voltage (V) | 105.8 | |
| Efficiency (%) | 85 | |
| Frequency (Hz) | 50/60 | |
| Net weight (kg) | 15 | |
| Shipping dimensions (mm) | 475 x 195 x 360 | |
| Electrode diameter | 1.6 - 5.0 | |
| Electrode type | 6010, 6011, 6013, 7018 etc. | |
| Power factor | 0.65 | |
| Refrigeration | AF | |
| Isolation class | H | |
| Protection class | IP23 | |
Key benefits of the Ronch 280 MAX
- Visible and repeatable quality: TIG offers very clean, slag-free welds with excellent thermal control, ideal for stainless steel (pipes, tanks, sanitary fixtures) and for visible parts where the finish determines the perceived value.
- DC arc stability: On steel and stainless steel, DC TIG provides a stable arc, less spatter, and better penetration control, simplifying repeatability and inspection.
- Useful duty cycle in hot climates: With 180 A at 100% and 230 A at 60% (40°C), you can organize long shifts without unnecessary stoppages. Adjusting the bead sequence protects the equipment and maintains quality.
- Electrical safety and continuity: VRD in MMA and internal protections (thermal/voltage/current) reduce risks and prevent downtime due to electrical trips or overtemperature.
- Real versatility for workshop + job site: MMA performs outdoors/in wind and better tolerates non-ideal surfaces. TIG takes care of the “showcase” finish. Having both in one machine optimizes investment and space.
Industrial sectors that employ the most TIG
Food and pharmaceuticals: stainless steel pipes and tanks, sanitary requirements, and clean welds.
Oil & Gas/Energy: pipe roots and critical passes in steel/stainless steel; fillers with other processes according to WPS.
Metalworking: cabinets, instrumentation, tools, and precision parts.
Transportation and automotive: visible elements in stainless steel and steel where aesthetics are important.
Construction/architecture: stainless steel railings, frames, and decorative details.
Industrial maintenance: controlled repairs with minimal distortion.
Frequently asked questions about the Ronch 280 MAX
1. Is it suitable for TIG welding aluminum?
The 280 MAX is TIG DC (Lift). For TIG welding aluminum, AC/DC is recommended.
2. What are the advantages of Lift TIG if it does not have HF?
Lift reduces interference and, with the right technique, offers consistent ignition in steel/stainless steel. It is practical and robust for field use.
3. What is the actual duty cycle?
As a platform guide: 180 A at 100% and 230 A at 60% at 40°C (10 min). Adjust the welding settings to protect the power source and maintain quality.
4. Can I connect it to generators?
Yes, it is designed to work with diesel generators and is prepared for input peaks. Use stable generators with sufficient power.
5. What protections does it incorporate?
Temperature, voltage, and current, as well as VRD in MMA.
6. What are Hot Start, Arc Force, and Anti-Sticking for?
They improve ignition, stabilize the weld pool, and prevent electrode sticking, increasing productivity and reducing defects.
7. What gas should be used in TIG DC for stainless steel?
Commonly high-purity argon. Adequate protection of the weld pool is key to color, health, and strength.
8. Why TIG if it is slower?
Because it offers maximum aesthetics and control, with very little spatter and zero slag, ideal for stainless steel and visible parts.
9. Is MMA still useful if I have TIG?
Yes. MMA is more tolerant of wind and imperfect surfaces, complementing TIG in assembly and exterior work.
