The ST 4000 FX U/D is a liquid-cooled TIG torch, 4 m long, with a flexible neck and U/D buttons. At 100% duty cycle it carries 350 A DC and 270 A AC, the same as the ST 4000 U/D, and takes electrodes from 0.5 to 4.0 mm.
What it is for
For high-current welding in vertical, overhead and tight positions; Böhler Welding recommends the FX series for such tasks. It fits the TERRA NX 320/400 TLH, URANOS NX 2700/3200 AC/DC and URANOS NX 4000/5000 (AC/DC and GSM). It works with a cooling unit and CL10 coolant.
| Part number | 81.32.271 |
|---|---|
| Brand | Böhler Welding |
| Model | ST 4000 FX U/D |
| Version | FX U/D: flexible neck, up/down buttons |
| Cooling | liquid |
| Length | 4 m |
| Electrode diameter | 0.5 to 4.0 mm |
| DC rating | 350 A at 100% duty cycle |
| AC rating | 270 A at 100% duty cycle |
| Consumables | standard (17/18/26 series) |
| Pack quantity | 1 pc |
Fits
- TERRA NX 320/400 TLH (cooling unit WU 230)
- URANOS NX 2700/3200 AC/DC (cooling unit WU 2000)
- URANOS NX 4000/5000 AC/DC (cooling unit WU 3000)
- URANOS NX 4000/5000 GSM (cooling unit WU 3000)
Also order
- Collets (3 pcs): 1.0 mm, 1.6 mm, 2.4 mm, 3.2 mm, 4.0 mm
- Collet bodies (3 pcs): 0.5 to 1.2 mm, 1.6 mm, 2.4 mm, 3.2 mm, 4.0 mm
- Ceramic nozzles (10 pcs): No. 4, No. 5, No. 6, No. 7, No. 8, No. 10, No. 12
- Back caps (3 pcs): long and short
- Cooling unit matching your machine (see Fits): WU 230, WU 2000, WU 3000
- CL10 coolant, 10 kg
FAQ
Is the FX rated lower than the ST 4000 U/D?
No. In the Böhler price list both ST 4000 variants carry 350 A DC and 270 A AC at 100%. This differs from the ST 3000 family, where the FX U/D is rated lower than the U/D. If you prefer the standard version, choose the ST 4000 U/D 4 m.
Which consumables fit the ST 4000 FX U/D?
Standard 17/18/26 series parts: collets 1.0 to 4.0 mm, collet bodies in the same sizes, ceramic nozzles from No. 4 (6.4 mm) to No. 12 (19 mm) and a long or short back cap. Match the collet and collet body to the electrode diameter.
4 m or 8 m?
The 4 m length is enough at a bench or close to the machine, and the torch is easier to coil up. If you weld further from the power source, for example on a large structure, choose the ST 4000 FX U/D 8 m.
You buy from an authorised Böhler Welding distributor and service partner in Poland: with a VAT invoice and shipping from Krotoszyn, including to the EU.
