'/%3E%3C/svg%3E){kind=small}
COLO.Science · Shakers & Mixers · Shaking Water Bath
ORSHAWB Thermostatic Shaking Water Bath · RT to 100 °C · 20–200 rpm · 31 L
The shaking water bath ORSHAWB combines a thermostatic water bath and a reciprocating shaker in one unit. The 31 L stainless steel tank holds the water from room temperature to 100 °C with ±0.1 °C stability, while the basket moves back and forth at 20–200 rpm. With the shaker stopped, it works as a regular laboratory water bath.
Model and order code
| Model | Order code | Temperature | Shaking | Tank · basket | Exterior W × D × H |
|---|---|---|---|---|---|
| ORSHAWB | PRO3099 | RT to 100 °C | reciprocating, 20–200 rpm | 31 L · 395 × 250 mm | 828 × 360 × 425 mm |
Flask capacity 100 ml × 12, 250 ml × 8 or 500 ml × 6. Water bath flask seat and tube rack included.
Water bath and shaker in one unit
Water transfers heat to flasks and tubes faster and more evenly than air. In ORSHAWB the samples sit in the water and are mixed at the same time, so cultures, enzyme reactions and extractions run at a constant temperature with constant movement. A soft start with adjustable start speed keeps the liquid in the flasks, and the drive locks if the speed goes out of control.
Key features
- Temperature from room temperature to 100 °C, ±0.1 °C stability, ±0.2 °C uniformity
- Reciprocating shaking 20–200 rpm, ±1 rpm
- Amplitude 16 or 24 mm (24 mm factory setting)
- 31 L mirror stainless steel tank, 500 × 310 × 200 mm
- Basket 395 × 250 mm, up to 5 kg
- PID control with Pt100 sensor, large LCD, timer 0–9999 min
- Soft start; over-temperature alarm, water-level and motor protection
- All wetted and exposed parts in stainless steel
Suitable for
- Shaken microbial cultures in flasks at constant temperature
- Enzyme reactions, digestion and incubation of reaction mixtures
- Extraction, dissolution and mixing of samples in tubes and flasks
- Thawing samples and warming reagents with the shaker stopped
When to choose a shaking water bath
Choose ORSHAWB when the samples must be heated evenly by water and mixed at the same time, up to 100 °C. For shaking in air with heating and cooling see the ORSHA80 · ORSHA85 shaking incubators; for a water bath without shaking see the PURUS thermostatic water bath; for tubes and microplates in a dry block see the ALEMADR-TSHL thermo shaker.
Technical specifications
Temperature and control
| Temperature | RT to 100 °C |
| Resolution | 0.1 °C |
| Stability | ±0.1 °C |
| Uniformity | ±0.2 °C |
| Control | PID, Pt100, LCD |
| Timer | 0–9999 min |
Shaking and construction
| Shaking | reciprocating |
| Speed | 20–200 rpm, ±1 rpm |
| Amplitude | 16 or 24 mm |
| Tank | 31 L, stainless steel |
| Basket | 395 × 250 mm |
| Supply | 220 V, 50 Hz, 1.5 kW |
RT = room temperature. Values measured with water, without load. Dimensions and weight are in the PDF.
Installation and care
Place the bath on a level bench with a separate earthed 220 V socket and a drain within reach of the tank valve. Fill the tank with distilled or deionised water above the minimum level before heating, and change the water regularly to keep the stainless steel tank clean.
Standard delivery and options
- Shaking water bath with 31 L stainless steel tank and reciprocating basket.
- Water bath flask seat and tube rack.
- Option: other flask clamps and racks on request.
The configuration for a specific order is the one confirmed in the COLO.Science quotation.
Technical documents and knowledge base
ORSHAWB technical specification (PDF) — tank and basket size, flask capacity, dimensions and configuration checklist. Methods and application notes: our knowledge base.
Configuration note
Tell us the samples, the flasks or tubes per run, the temperature and the speed. COLO.Science will confirm the basket, the clamps and the delivery time in the quotation.
Sales and support for international customers
COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.
