Heating equipment · Thermostatic water baths
JOANLAB thermostatic water bath · S series
2 and 6 L water baths with a stainless steel tank, digital control and timer; the WBS-6Pro adds magnetic stirring from 100 to 1200 rpm.
- Two tank formats: a 2 L cylindrical tank of Ø150 mm and 105 mm deep, and a 6 L tank of 200 × 200 × 130 mm
- Operation from ambient temperature plus 5 °C up to 100 °C, with a readout of 0.1 °C
- The WBS-6Pro incorporates magnetic stirring from 100 to 1200 rpm in 50 rpm steps, with a brushless motor
- Timer from 1 min to 24 h on the WB-2S and from 1 min to 23 h 59 min on the 6 L units
Configurations, certifications, power supply, accessories and availability are confirmed in the quote.
Specifications
Summary datasheet
| Capacity | 2 L (WB-2S); 6 L (WB-6S and WBS-6Pro) |
| Agitation | Only the WBS-6Pro stirs: 100 to 1200 rpm in 50 rpm steps, with a brushless motor. The WB-2S and the WB-6S have no stirring, despite the title of the catalog page |
| Temperature range | From ambient temperature plus 5 °C up to 100 °C. For the WB-2S the 2026 edition writes "ambient-100 °C"; the 2025 edition and the price list write "ambient +5 °C" |
| Tank | Stainless steel: Ø150 mm and 105 mm deep on the WB-2S; 200 × 200 × 130 mm on the WB-6S and the WBS-6Pro |
| Largest vessel in the 6 L tank | A 2 L flask or a 3 L beaker, according to the catalog |
| Readout resolution | 0.1 °C. The manufacturer states neither temperature stability nor uniformity for this series, unlike the WB100 |
| Timer | 1 min to 24 h (WB-2S); 1 min to 23 h 59 min (WB-6S and WBS-6Pro) |
| Power | 300 W (WB-2S); 800 W (WB-6S and WBS-6Pro) |
| Dimensions | 195 × 190 × 260 mm (WB-2S); 260 × 265 × 325 mm (WB-6S and WBS-6Pro) |
| Power supply | AC 110/220 V; the catalog does not state the frequency. Configuration to be confirmed for Chile |
| Dry-run protection | The catalog page announces it as a feature without saying which models it applies to, and the price list marks it only on the WB100-F series. To be confirmed with the supplier |
| Lid | Stated on the WB-6S and the WBS-6Pro. On the WB-2S it is not stated, although the catalog photograph shows one |
| Availability | Import to order / to be confirmed |
A compact 2 L or a 6 L tank, and only the Pro stirs
The WB-2S is the small one: a round Ø150 mm tank, 300 W and regulation from room temperature. The two 6 L units share body and tank at 200 × 200 × 130 mm —a 2 L flask or a 3 L beaker fits— with 800 W and regulation from ambient +5 °C.
What the Pro adds
The WBS-6Pro adds magnetic stirring from 100 to 1200 rpm in steps of 50, on a brushless motor. Everything else is the 6 L bath: same tank, same power, same 0.1 °C readout.
The anti-dry function and the stainless steel tank belong to the whole family.