The upgrade kit converts the SL 4R-2T drive (four rolls, two driven) into a drive with four driven rolls, for 1.0/1.2 mm wire. In the Böhler 2026/27 price list it is among the accessories of WF NX 330 Smart and WF NX 430 Smart feeders and the TERRA NX 400/500 MSE power source that works with them.
What it is for
The upgrade helps when you want a Smart feeder to drive like a SteelDrive, with four rolls pushing the wire. In the price list selection guide the four-driven-roll drive is also an option for TERRA NX 320/400 SMC Smart; for that machine we confirm the kit before ordering.
| Part number | 07.01.512 |
|---|---|
| Brand | Böhler Welding |
| Type | drive upgrade kit |
| Rolls | from 4 rolls (2 driven) to 4 driven rolls |
| Wire | 1.0/1.2 mm (as in the name) |
| Böhler price list name | UPGRADE KIT FROM 4 ROLLS (2 ROLLS DRIVE) TO 4 ROLLS DRIVE 1.0/1.2 |
| Pack quantity | 1 kit |
Fits
- feeders: WF NX 330 Smart, WF NX 430 Smart
- power source: Böhler TERRA NX 400/500 MSE with Smart feeder
Also order
FAQ
Is it the same as the SL 4R-4T feed unit?
No. The kit upgrades an existing SL 4R-2T drive. The complete SL 4R-4T unit is a separate item, 07.01.337.
Which wire is it for?
The price list name ends with 1.0/1.2, meaning 1.0 and 1.2 mm wire. For other diameters choose SL 4R rolls.
Spawlab is an authorised Böhler Welding distributor and service partner in Poland: VAT invoice, shipping from Krotoszyn, also to EU countries.
