Böhler Welding long back cap for TIG torches with 17/18/26 consumables (BT17, BT26, ST 2200, ST 3000, ST 4000). It closes the rear of the torch head and presses the collet that holds the electrode. Pack of 3.
What it is for
The long back cap takes a full-length electrode, so you can feed it forward as it is ground down. The joint with the torch head is sealed by O-ring 82.10.020. Replace the cap when it is cracked or the thread is damaged.
| Part number | 82.10.018 |
|---|---|
| Brand | Böhler Welding |
| Type | Back cap |
| Version | long |
| Consumable range | 17/18/26 (standard) |
| Pack quantity | 3 pcs |
Fits
- BT17, BT17 U/D, BT17 with potentiometer, BT17V
- BT26, BT26 U/D, BT26 with potentiometer, BT26V
- ST 2200 U/D, ST 2200 FX U/D, ST 2200 FX DigiTig
- ST 3000 U/D, ST 3000 DigiTig, ST 3000 FX U/D, ST 3000 MP U/D
- ST 4000 U/D, ST 4000 DigiTig, ST 4000 FX U/D, ST 4000 FX DigiTig
Also order
FAQ
Long or short back cap?
The long cap (82.10.018) takes a full-length electrode. The short cap (82.10.019) shortens the torch rear for tight spots, with a shorter electrode.
Does it fit the ST 2500 torch?
No. The ST 2500 uses 9/20 consumables; the back caps there are 82.10.064 (long) and 82.10.065 (medium).
Which O-ring fits?
O-ring 82.10.020, pack of 10.
You buy from the authorised Böhler Welding distributor and service partner in Poland, with a VAT invoice and shipping from Krotoszyn, also within the EU.




