The Lincoln Electric FlexCut 35 is the entry point in Lincoln Electric's newest generation of portable air plasma cutters — a completely redesigned lineup replacing the older Tomahawk series with advanced technology at every power level. As highlighted in Lincoln Electric's FlexCut plasma overview, the FlexCut 35 delivers 35 amps of cutting power with 100% duty cycle, cuts mild steel, stainless steel, and aluminum up to 1/2 in. thick, and operates on dual-voltage 120V or 230V single-phase input — the most versatile entry-level plasma cutter Lincoln Electric has ever built.
The FlexCut 35 introduces several upgrades over previous Lincoln Electric portable plasma designs: an intuitive LCD display with guided setup for cutting, gouging, and grid-cutting modes; increased airflow for improved arc stability and cut quality; a Parts-in-Place detection system that prevents arc initiation with improperly assembled consumables; and an integrated air dryer to protect consumables from compressor moisture. The 25-ft FlexConnect torch system allows quick torch head or cable swaps without replacing the full torch assembly — reducing the cost of transitioning between handheld and mechanized configurations.
At 120V, the FlexCut 35 runs on any standard 15 or 20 amp household or job-site circuit, making it the go-to plasma cutter for HVAC technicians and electricians who need a plasma cutter on job sites without a 230V supply. At 230V, the full 35 A output cuts thicker material and maintains the rated 100% duty cycle for sustained sheet metal cutting in small fabrication shops and school welding labs.
Lincoln Electric backs the FlexCut line with a 5-year factory warranty — double the coverage of Lincoln Electric's previous Tomahawk portable plasma series — reflecting the engineering confidence behind the redesigned platform. The FlexCut 35 includes a complete consumable package (nozzles, diffusers, electrodes, drag cups) so you can start cutting on day one.
| SKU / Model | FlexCut 35 (Handheld Ready-Pak: K5821-H) |
| Process | Plasma Cutting, Gouging, Grid-Cutting (PAC) |
| Output (Amps) | 35 A |
| Input Voltage | 120V or 230V, Single-Phase, 50/60 Hz (dual-voltage) |
| Duty Cycle | 100% at rated output |
| Cut Capacity — Mild Steel (Recommended) | 3/8 in. (9.5 mm) |
| Cut Capacity — Mild Steel (Maximum) | 1/2 in. (12.7 mm) |
| Materials | Mild steel, stainless steel, aluminum, and other conductive metals |
| Arc Start | Non-High-Frequency (touch-start / contact) — electronics safe |
| Display | LCD display with guided mode selection |
| Torch System | FlexConnect — quick-swap torch heads and cables |
| Integrated Air Dryer | Yes — built-in inline air dryer |
| CNC / Mechanized Ready | No (35 is handheld only; 45 and above are CNC-ready) |
| Warranty | 5 Years — Lincoln Electric factory (new FlexCut line) |
| Condition | New — Lincoln Electric K-prefix (factory-new) |
- FlexCut 35 Plasma Cutter Power Source
- 25 ft FlexConnect Handheld Torch
- Work Cable & Ground Clamp
- Input Power Cord
- Complete Consumable Package: nozzles, diffusers, electrodes, drag cups
- Operator's manual
Extend your FlexCut 35's versatility with WeldingMart's Lincoln-compatible accessories:
- Plasma Torches — FlexConnect replacement torch heads and cables; extended-reach bodies for cutting pipe and tube from awkward angles; drag shield attachments for guided freehand cutting on flat plate.
- Plasma Consumables — FlexCut-compatible electrodes, nozzles, swirl rings, and shields for the FlexConnect torch system; multi-pack consumable kits for HVAC and sheet metal production runs; gouging nozzle kits for weld removal and joint preparation.
- Air Regulators & Inline Filters — Inline moisture separators and particulate filters for compressor air supply; portable mini-dryers for job-site use; quick-disconnect air fittings for fast tool changes between plasma cutter and air tools.
The FlexCut 35's dual-voltage input, 100% duty cycle, and 1/2 in. cut capacity make it a genuinely versatile tool across light to medium cutting tasks:
- HVAC ductwork and sheet metal. On 120V at the job site, the FlexCut 35 cuts galvanized duct, register boxes, and sheet metal panels in 26-gauge through 14-gauge without needing a 240V circuit. The built-in air dryer protects consumables from the variable compressed air quality found on job sites. Faster and cleaner than snips on heavier duct stock and produces no tin snip burrs on cut edges.
- Automotive bodywork and restoration. On 230V in the shop, 35 A is sufficient to cut floor pans, rocker panels, quarter panels, and patch panels in 20-gauge and 18-gauge steel with minimal heat distortion. The non-HF start is safe near vehicle wiring harnesses and control modules. FlexConnect torch allows switching to a shorter torch head for tight underbody access cuts.
- Structural steel and home fabrication. Cuts flat bar, angle iron, and square tube up to 3/8 in. on 230V for home shop brackets, gates, and trailer repairs. Small enough to store on a workbench, light enough to carry to the work, and dual-voltage enough to run from the garage outlet or a job-site generator.
- Art, custom metalwork, and makerspaces. Sheet steel art projects, decorative panels, and custom hardware cut from flat stock using drag shield guides or freehand on a cutting table. The guided LCD setup makes it accessible for students and artists who are new to plasma cutting without requiring adjustment of separate gas regulators or HF interference concerns.
- Demolition, scrap prep, and MRO. Cuts expanded metal, painted structural steel, and corroded material in field MRO and light demolition work on 120V extension cord power. Consumable protection from the Parts-in-Place system and built-in air dryer means fewer arc-start failures on inconsistent field air supply.
The FlexCut 35 is rated to cut mild steel up to 1/2 in. (12.7 mm) maximum and up to 3/8 in. (9.5 mm) at recommended production cutting speed. At 120V input, performance is reduced — recommended capacity on 120V is approximately 1/4 in. For consistent cuts at full rated capacity, use 230V input. The machine also cuts stainless steel and aluminum at comparable thicknesses to mild steel. Per Lincoln Electric's FlexCut product family page, the FlexCut 35 covers the entry-range of the new FlexCut lineup.
The FlexCut 35 is rated at 100% duty cycle at rated output — meaning it can cut continuously without thermal shutdown. This is a significant improvement over prior Lincoln Electric portable plasma cutters in the 30–40 A range, which were typically rated at 35–50% duty cycle. For production sheet metal cutting tasks where continuous arc time is important, the 100% duty cycle eliminates the waiting intervals common on lower duty-cycle machines.
The FlexCut 35 uses a non-high-frequency touch/contact arc start system with a rapid arc restrike feature that maintains the arc through gaps in expanded metal, perforated plate, and interrupted surfaces. While not a blown pilot arc like a larger industrial system, the restrike technology delivers similar practical performance for hand cutting on typical fabrication materials. For solid steel plate, the arc start is reliable and consistent through paint and mill scale without grinding a clean start spot.
No. The FlexCut 35 is a handheld-only plasma system and does not include a CNC interface port. Per Lincoln Electric's FlexCut lineup, the FlexCut 45 (K5823 series) and all larger models (65, 85, 105, 125) include CNC-ready ports and are compatible with plasma cutting tables using mechanized torch packages. If CNC table integration is your primary requirement, see the FlexCut 80 (K4809-1) or FlexCut 125 (K4811-1).
The FlexCut 35 requires compressed air at approximately 80–100 PSI with adequate flow for the torch size. A standard portable compressor with 4+ SCFM at 90 PSI and a 6-gallon or larger tank is sufficient for intermittent to moderate cutting. The built-in air dryer removes moisture from the compressed air supply before it reaches the torch consumables — a significant convenience feature that eliminates the need for a separate inline desiccant dryer in most job-site and shop environments.