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Stahlwerk added after 5 years to its top models a new S-series. The exclusive S Series is packed with innovations in form, function and design.
For our newly developed S-SERIES STAHLWEK WELDING MACHINES not only all related components have been optimized. The S-series. also offers challenging design products, which combine functional and aesthetic aspects to a prestigious industrial object.
Of course, we also offer you in the future our present success models!

Plasma cutter CUT 120 S

€713,45 (net plus shipping)

Gerät & mitgeliefertes Zubehör • Device & standard accessory






  • A plasma beam which cuts through any electrically conductive metal easily.

  • Powerful cutting speed which ensures high productivity.

  • Clean cuts that do not need post-processing.

  • Minimal operating costs through the use of air plasma – instead of expensive gas is compressed air used.

  • Infinite adjustability of the cutting current of 20-120 A.

  • No material distortion by heat - metal waste is minimized.

  • Easy to understand operating concepts for each choice of particular setting, so you can Concentrate fully on your cutting task.

  • Maximum energy density with minimal heat distortion.

  • Easy handling and low thermal expansion.

  • Intelligent housing design with optimized air exchange.

  • Powerful, high duty cycle of 60% at 120 amps.

  • Quickly cooling ventilator allows a exploitation of maximum power.


The plasma cutter  CUT 120 S has the most advanced MOSFET inverter technology (Toshiba). The resulting special properties such as high speed and precision of control give the devices their excellent quality when cutting.


The CUT 120 S  is for industry, crafts and private gardening optimally suited. In the last 8 years, more than 5,000 STAHLWERK  plasma devices were used in different work situations..Easy use, stability and accuracy guarantee a cutting at the highest level.


The device comes complete operational. You need only connect the compressor. The compressor is not included. The power connector is installed by us. All you need is a 16 A fuse.


Consulting - Service - Instruction - Help

Service is a top priority. Each customer has his own personal account manager, who support the customer in the execution of his appointment or assist him for questions and advice. The customer is served during and after the warranty period from us. In case of problems, call us, we are always available. You are also welcome to visit us. Our motivated team will always find a positive solution for you. Take advantage from our services. Everyone is welcome to test our equipment in detail under the guidance of our experts.








  • Switch on the hand grip (similar models work with cable ties).
  • Digital display
  • Cutting power up to 40 mm, depending on material:
    - Construction steel up to 40 mm - V2A or V4A up to 30 mm
    - Aluminium up to 25 mm
  • You have to cut material? Visit us and we will demonstrate the power of CUT 120 S!
  • The device works at a high frequency ignition in contact with the workpiece, (advantage: more precise and faster cutting).
  • PILOT arc.
  • Small cutting width.
  • High cutting speed.
  • CNC suited.
  • Good cutting quality.
  • High quality nozzle and electrodes.
  • Duty cycle 60% at 120A.
  • Duty cycle 100% at 90A.
  • Infinite adjustability of the cutting current of 20 - 120 A.
  • By the small deformation thin sheets can immediately be re-welded together.
  • Accurate and very stable arc. Perfect for cutting oil tanks, tubs, chassis or similar body. (Good alternative to disc grinder).
  • The device is ready to use immediately at deliver.


The inverter technology also allows an enormous weight and volume reduction both the transformer as well the balance resistance. Thus, it is possible to develop a device which with a professional power and despite its stable and solid processing weighs only 28 kg. Similar devices have usually a weight of 50-60 kg.


With the CUT 120 S, you can easily cut all conductive metals such as standard steel, copper, stainless steel, brass, aluminum, titanium, etc. An air compressor with at least 7.5 bar is required. (No more expensive gas). A commercial compressor is enough. Please pay attention to the power.





Technical Data


  Rated voltage AC 400 V
  Input frequency 50/60 Hz
  Fuse 16 A
  Insulation class IP 21
  Duty cycle at 120 A 60%
  Duty cycle at 90 A 100%
  Display of output current     20 - 120 A
  Cutting power 40 mm
  Cutting width 1,2 mm
  Air pressure 7,5 Bar
  Air flow mind. 180 L/min
  Ignition PILOT (contactless)
  Weight 31,2 kg
  Dimensions L × W × H (mm)        610 × 290 × 440 (without handle)   


Scope of delivery

  • The device PLASMA CUT 120 S.
  • Profi Plasma torch package "P-80" 4,50 m.
  • Plasma accessories set: 1 nozzle, 1 electrode, 1 ceramic cap (installed them each one piece already in the hose package).
  • Ground wire 3 m.
  • Water separator with manometer.
  • Connection hose: 0,5 m and 3 m.
  • User guide 
  • Invoice including VAT.



Video tutorial


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