Everlast
Everlast PowerMTS 251Si
$1689
Best Welders · head-to-head
Everlast PowerMTS 251Si vs PrimeWeld TIG225X
A sourced, side-by-side comparison. PrimeWeld TIG225X is cheaper at $849. Every spec and price links to its source.
PrimeWeld
PrimeWeld TIG225X
$849Cheaper
Which is better: the Everlast PowerMTS 251Si or PrimeWeld TIG225X?
The PrimeWeld TIG225X wins 1 of the 1 specs we compare head to head; the other wins 0. The PrimeWeld TIG225X is the cheaper at $849. The PrimeWeld TIG225X both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Everlast PowerMTS 251Si | PrimeWeld TIG225X |
|---|---|---|
| US price | $1689 | $849 |
| Brand | Everlast | PrimeWeld |
| Released | — | — |
| Welding processes | MIG;Flux-Core;DC-TIG;Stick | DC-TIG;AC-TIG;Stick |
| Input voltage | 120V/240V | 120V/240V |
| Phase type | single-phase | single-phase |
| Max output amps | 250 | 225 |
| Output range amps | 10-250 | 10-225 |
| Duty cycle percent | 40 | 40 |
| Duty cycle rating amps | 250 | 225 |
| Max steel thickness (in) | — | — |
| Inverter based | Yes | Yes |
| Spool gun capable | Yes | No |
| Weight (lb) | 80 | 41 |
Sources — Everlast PowerMTS 251Si: web.archive.org (verified 2026-07-11). PrimeWeld TIG225X: primeweld.com (verified 2026-07-11).
What's the difference between the Everlast PowerMTS 251Si and PrimeWeld TIG225X?
Where the two actually differ on the specs we track (6 of 11). Matching specs are omitted.
- Welding processes: Everlast PowerMTS 251Si MIG;Flux-Core;DC-TIG;Stick vs PrimeWeld TIG225X DC-TIG;AC-TIG;Stick
- Max output amps: Everlast PowerMTS 251Si 250 vs PrimeWeld TIG225X 225
- Output range amps: Everlast PowerMTS 251Si 10-250 vs PrimeWeld TIG225X 10-225
- Duty cycle rating amps: Everlast PowerMTS 251Si 250 vs PrimeWeld TIG225X 225
- Spool gun capable: Everlast PowerMTS 251Si true vs PrimeWeld TIG225X false
- Weight (lb): Everlast PowerMTS 251Si 80 vs PrimeWeld TIG225X 41