Everlast Thunder 255 MTS Pulse MIG, DC TIG & Stick Welder
Everlast Thunder 255 Pulse Multi-Process Welder
The Everlast Thunder 255 Pulse Multi-Process Welder is a versatile, professional-grade welding machine designed for fabrication workshops, maintenance, manufacturing and on-site applications. Combining advanced digital inverter technology with synergic Pulse MIG controls, the Thunder 255 delivers exceptional arc stability, weld quality and ease of use across a wide range of materials.
Whether you're welding mild steel, stainless steel or aluminium, the Thunder 255 offers the flexibility of Pulse MIG, Standard MIG, Flux-Cored MIG, DC TIG and Stick welding in one compact machine. Intelligent synergic controls simplify setup by automatically optimising welding parameters, while full manual adjustment gives experienced welders complete control over every aspect of the weld.
Featuring an integrated heavy-duty 4-roll wire drive, high-frequency TIG start, Pulse MIG technology and extensive adjustment options, the Thunder 255 provides industrial-level performance from a portable 220–240 V single-phase machine.
Features & Benefits
- Digital microprocessor-controlled IGBT inverter technology
- Multi-process CC/CV inverter design
- 110 mm HD colour LCD display
- Standard MIG and Single Pulse MIG welding
- Gas-shielded and gasless Flux-Cored welding
- DC TIG and DC Stick welding
- E6010 root pass capability
- Synergic PowerSet mode for fast machine setup
- Full manual welding mode
- Portable design for workshop and on-site use
- Accepts 200 mm and 300 mm wire spools
- Adjustable MIG inductance
- Adjustable Stick Arc Force
- Adjustable TIG upslope and downslope
- Adjustable burnback control
- High Frequency and Lift TIG start
- TIG torch and foot pedal included
- Spool gun compatible
- Push-Pull gun compatible
- Save up to 30 welding programs
- 2T / 4T trigger operation
- Adjustable gas pre-flow and post-flow
- Heavy-duty integrated 4-roll wire feed system
What's Included
- 36 Series MIG torch with 3 m lead and Euro connector
- 26 Series air-cooled TIG torch with 3.8 m lead and 35 DINSE connector
- 2T / 4T TIG torch switch with 3.8 m lead and 2-pin connector
- Stick electrode holder with 3 m lead and 35 DINSE connector
- Earth clamp with 3 m lead and 35 DINSE connector
- Deluxe MTS foot pedal with 7-pin connector
- Argon regulator with gas hose
- Starter TIG consumable kit (tungsten not included)
- Spare MIG contact tips
- Double V-groove drive rolls for 0.9–1.2 mm wire
Specifications
Machine Type
Digital Microprocessor Controlled IGBT Inverter
Welding Processes
- Standard MIG
- Single Pulse MIG
- Gas-Shielded Flux-Cored MIG
- Gasless Flux-Cored MIG
- DC TIG
- DC Stick
Input Power
- 220–240 V
- Single Phase
- 50/60 Hz
Output
| Specification | Value |
|---|---|
| Maximum MIG Output | 275 A |
| Maximum TIG Output | 250 A |
| Maximum Stick Output | 220 A |
Rated Duty Cycle
| Process | Output |
|---|---|
| MIG | 275 A / 27.8 V @ 60% |
| DC TIG | 250 A / 20 V @ 60% |
| Stick | 220 A / 28 V @ 60% |
Electrical
| Specification | Value |
|---|---|
| Maximum Input Current (I1MAX) | 48 A |
| Rated Input Current (I1EFF) | 38 A |
| Open Circuit Voltage | 80 V |
Output Range
| Process | Range |
|---|---|
| MIG | 30–275 A / 15.5–27.8 V |
| DC TIG | 10–250 A |
| DC Stick | 10–220 A |
Machine Features
- Variable MIG inductance
- Adjustable Stick Arc Force
- High Frequency TIG start
- Lift TIG start
- Single Pulse MIG
- TIG pulse frequency: 0–500 Hz
- TIG pulse duty cycle: 5–95%
- Heavy-duty 4-roll wire drive
- Integrated wire feeder
- Wire feed speed up to 15.2 m/min
- Accepts 300 mm wire spools
- 30-program memory
- Standard foot pedal included
- Spool gun compatible
- Push-Pull gun compatible
- 2T / 4T trigger operation
Welding Capacity
Steel & Stainless Steel (MIG)
- Single-pass welding up to 11 mm
- Multi-pass welding over 19 mm
- Minimum material thickness approximately 0.6 mm
Aluminium (MIG)
Using the supplied MIG torch with a PTFE liner and U-groove drive rolls:
- Single-pass welding up to 10 mm
- Multi-pass welding over 19 mm
- Minimum material thickness approximately 2 mm
For longer aluminium welds, a Push-Pull torch such as the Parker SG360A or Parker DSP360 is recommended.
DC TIG
- Single-pass welding up to 13 mm
- Multi-pass welding up to 19 mm
- Minimum material thickness approximately 0.4 mm
Stick Welding
- Electrode size: 1.6–4.8 mm
Maximum electrode size and welding performance will vary depending on electrode type, manufacturer recommendations and welding application.
Generator Requirements
When operating from a generator, use only a clean sine wave generator with 5% Total Harmonic Distortion (THD) or less.
Recommended minimum generator capacity:
- 13 kVA (13,000 W) surge output
Using a generator with excessive THD or insufficient output may damage the machine and void the warranty.
Notes
- Smaller wire sizes may require optional drive rolls, liners or MIG torches for optimum wire feed performance.
- Aluminium welding requires a PTFE liner together with U-groove drive rolls.
- For best performance with 0.6 mm and 0.8 mm wire, a smaller MIG torch and matching liner are recommended.
- Extended or dedicated gasless flux-cored welding is best performed using a dedicated flux-cored MIG torch.
- Power plug not included. Installation should be completed by a qualified electrician using the appropriate connector for a 220–240 V single-phase power supply.
