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Description
PRESTO W50 Process SystemOverview The rapid compensation of reactions even at higher ambient temperatures is the domain of the water cooled W50 units. High heating and cooling capacity paired with powerful pumps. Both systems are water cooled, the W50t offers increased heating capacity of 10 kW. Features: For highly precise, external temperature applications Rapid heating and cooling Wide working temperature ranges without changing fluids Highest performance with small
Overview
The rapid compensation of reactions even at higher ambient temperatures is the domain of the water-cooled W50 units. High heating and cooling capacity paired with powerful pumps. Both systems are water-cooled, the W50t offers increased heating capacity of 10 kW.
Features:
- For highly precise, external temperature applications
- Rapid heating and cooling
- Wide working temperature ranges without changing fluids
- Highest performance with small footprint
- Space-saving design optimizes space utilization in your lab
- 5,7” industrial color TFT touch screen
- USB connection
- Ethernet
- SD-Card slot
- RS232
- Modbus
- RS485 (Accessory)
- Profibus DP (Accessory)
- Pump pressure up to 3.2 bar, max. flow rate 76 l/min
- Second external Pt100 sensor connection (accessory)
- Temperature stability ±0.05 °C ... ±0.1 °C
- Heating capacity up to 5.4 kW (or 10 kW on the W50t)
Key Attributes
| Type | Circulating |
| Incubation | Yes |
| Refrigeration | Yes |
| Temp Range (°C) | -50 ... +250°C |
| Capacity (L) | N/A |
| Circulation | External Only |
| Brand | Julabo |
| MaxFlow Rate (l/min) | 76 |
| Temp Stability (°C) | ±0.05 to 0.1°C |
| Timer | Yes |
| Alarms | Yes |
| Digital or Mechanical | Digital |
| Data connection | Yes |
| Tank Material | N/A |
| Sample Agitation | No |
| Media Racks Available | No |
| Warranty (years) | 1 |
| Weight (lb) | 463 |
Manufacturer Specifications
| Dimensions | 20.9 x 26.2 x 49.6 in. | 20.9 x 26.2 x 49.6 in. |
| Filling volume expansion vessel | 11.5 l | 11.5 l |
| Internal usable expansion volume | 7.5 l | 7.5 l |
| Minimal process volume | 7.5 l | 7.5 l |
| Active heat exchanger volume | 3.5 l | 3.5 l |
| Weight | 463 lbs | 463 lbs |
| Pump connections | M30x1.5 male | M30x1.5 male |
| Cooling Water Connection | G¾ in. | G¾ in. |
| Working temperature range | -50.0 ... +250.0 °C | -50.0 ... +250.0 °C |
| Temperature stability | +/-0.05 ... +/-0.1 °C | +/-0.05 ... +/-0.1 °C |
| Setting the resolution of the temperature display | 0.01 °C | 0.01 °C |
| Temperature display resolution | 0.01 °C | 0.01 °C |
| Ambient temperature | +5.0 ... +40.0 °C | +5.0 ... +40.0 °C |
|
Data based on voltage version: |
208V/3PPE/60Hz (Without Plug) |
208V/3PPE/60Hz (Without Plug) |
| Heating capacity | 5.5 kW | 10 kW |
| Cooling capacity (Medium: Ethanol) | 200°C/7kW | 20°C/7.5kW | 0°C/6.5kW | -10°C/5 kW | -20°C/3kW | -30°C/1.8kW | -40°C/0.6kW | 200°C/7kW | 20°C/7.5kW | 0°C/6.5kW | -10°C/5 kW | -20°C/3kW | -30°C/1.8kW | -40°C/0.6kW |
| Pump capacity flow rate | 35 ... 76 l/min | 35 ... 76 l/min |
| Pump capacity flow pressure | 7 ... 43.5 psi | 7 ... 43.5 psi |
| Viscosity max. | 50 cST | 50 cST |
|
Refrigerant stage 1 |
R507 | R507 |
| Global Warming Potential for R507 | 3985 | 3985 |
| Filling volume | 0 g | 0 g |
| Carbon dioxide equivalent | 0 t | 0 t |
| Cooling of compressor | 1-stage Water | 1-stage Water |
| Cooling water pressure max. | 87 ... 79.8 psi | 87 ... 79.8 psi |
| Cooling water difference pressure | 7.3 bar | 7.3 bar |
| Cooling water temperature max. | 30 °C | 30 °C |
| 1.0Cooling water consumption | 8 ... 12 l/min | 8 ... 12 l/min |
| Sound pressure level | 65 dbA | 65 dbA |
| Classification according to DIN12876-1 | Classification III (FL) | Classification III (FL) |
| IP Code according to IEC 60529 | IP 20 | IP 20 |
| Pump type | Centrifugal Pump (Magnetically coupled) | Centrifugal Pump (Magnetically coupled) |
| External pt100 sensor connection | integrated | integrated |
| 2nd external Pt100 sensor connection | accessory | accessory |
| Integrated programmer | 8x60 steps | 8x60 steps |
| Temperature control | ICC | ICC |
| Absolute temperature calibration | 3 Point Calibration | 3 Point Calibration |
| Temperature display | 5.7" TFT Touchscreen | 5.7" TFT Touchscreen |
| Temperature setting | Touchscreen | Touchscreen |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Product Reviews
★★★★★ 5
He liked it
Color: Turquoise Heather, Size: Medium
He liked it so that’s good- rice is good for item
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Reviewed in the United States on February 10, 2026
★★★★★ 4
Lightweight Hoodie
Color: Black Grey Heather, Size: XX-Large
This is my lightweight hoodie. It runs a bit small. I'm typically an XL, but I like my hoodies bigger, so I got a 2XL, but the fit is more of that of an XL. So it does appear to run small.
The material is nice, but warm, which makes sense since it's polyester and spandex, not very breathable. I'm also worried about how it holds up over time with those materials, from my experience it will get those little fuzz balls, ruining the look, but time will tell on that one.
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Reviewed in the United States on September 27, 2024
★★★★★ 5
Solid product
Color: Dark Grey Heather, Size: Large
Great feel, great fit. Perfect for layering
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Reviewed in the United States on December 14, 2025
★★★★★ 5
My favorite pullover
Great fit, quality, design, and value. It lightweight but also has a thickness so I can wear it on cool mornings in the Northeast. I highly recommend!
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Great Pullover
Color: Light Blue, Size: 3X-Large
Stylish and functional. I'm wearing it right now!
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Reviewed in the United States on May 12, 2026