The WU 230 is a Böhler Welding liquid cooling unit for three TERRA NX families: TERRA NX 320 PME, TERRA NX 320/400 TLH and TERRA NX 400/500 MSE. It has a 1 x 400 V AC supply, 1.0 kW cooling power and a 3.0 l tank. It weighs 12.0 kg and measures 660 x 240 x 220 mm.
What it is for
You add the cooling unit when you weld with a liquid-cooled torch. In the water configurations of the Böhler price list 2026/27 the WU 230 appears as follows:
- TERRA NX 400/500 MSE: WF NX 330 Smart or SteelDrive feeder, 70 mm² 4 m liquid-cooled interconnection cable, GT 400 WF trolley, MT 440 W 4 m torch
- TERRA NX 320 PME: WF NX 330 SteelDrive feeder, the same cable bundle, GT 400 WF trolley, MT 440 W U/D 4 m torch
- TERRA NX 320 TLH and 400 TLH: GT 400 trolley, ST 3000 U/D 4 m torch (320) or ST 4000 U/D 4 m torch (400)
| Part number | 71.03.071 |
|---|---|
| Brand | Böhler Welding |
| Model | WU 230 |
| Cooling | liquid |
| Power supply | 1 x 400 V AC |
| Cooling power | 1.0 kW |
| Tank capacity | 3.0 l |
| Weight | 12.0 kg |
| Dimensions | 660 x 240 x 220 mm |
| Coolant | CL10 (18.91.008), separate item |
| Water filter (accessory) | kit 74.90.066, cartridge 24.02.007 |
| Pack quantity | 1 pc |
Fits
- TERRA NX 320 PME
- TERRA NX 320/400 TLH
- TERRA NX 400/500 MSE
Also order
- Coolant CL10, 10 kg: to fill the 3.0 l tank
- Water filter kit for WU cooling units
- Spare water filter for WU cooling units
- Interconnection cable 70 mm², 4 m, liquid cooled: from the MSE and PME water configurations
- MIG/MAG torch MT 440 W 4 m, liquid cooled: from the TERRA NX 400/500 MSE configuration
- MIG/MAG torch MT 440 W U/D 4 m, liquid cooled: from the TERRA NX 320 PME configuration
- TIG torch ST 3000 U/D 4 m, liquid cooled: from the TERRA NX 320 TLH configuration
FAQ
What is the difference between WU 230 and WU 2000?
Dimensions, weight, tank and power are the same, but the WU 230 has a 1 x 400 V AC supply, while the WU 2000 has 360 V DC and is listed for URANOS NX 2700/3200 AC/DC and 3200 GSM. They are not interchangeable.
Does the WU 230 fit TERRA NX PMC or SMC?
No. For TERRA NX 320/400 PMC and TERRA NX 400/500 PME the price list provides the WU 430, and for TERRA NX 320/400 SMC the WU 330. The WU 230 is listed for TERRA NX 320 PME, but not for 400/500 PME.
How much coolant do I need?
The tank holds 3.0 l and a CL10 pack contains 10 kg of coolant. One pack covers filling and top-ups.
Spawlab is an authorised Böhler Welding distributor and service partner in Poland: VAT invoice, shipping from Krotoszyn by courier or on a pallet for larger items, also to EU countries.

