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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
4.6 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
Have bought a few of these over the last handful of years
Color: Red
Best toy outside of Ghonuts for heavy chewers. Even outlasts the most durable Kongs. I'd say we get about four months before our dog starts really making a dent in it and the size of the pieces he pulls off start to become larger and I should probably replace it after about six months. It's cheap enough that replacing it that often is fine.
*Important note* using squishy toys for heavy chewers is really important. They can break their teeth on hard toys like Nyla bones and things like antlers can break and cut them and damage their digestive system if they swallow the shards. It sucks because my dog loved Nyla bones and would chew off an inch a day, but I couldn't risk his teeth like that.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
★★★★★ 5
Finally - a tug toy my dog hasn’t destroyed!
Color: Red
This completely exceeded my expectations! My dog is roughly a year old, about 110-115lbs and a TOUGH chewer. He loved tugs toys but none of them last more than 10 minutes with him. I decided to try this because of the other reviews and price but wasn’t expecting it to last long. He’s had it almost a week and it’s still completely intact. It’s definitely heavy so it might not be best for smaller dogs but if you have a big dog/heavy chewer definitely give this a shot!
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Indestructible so far
Color: Red, Color: Red
My toy destroyer has had this for almost two months now and it hasn’t taken any damage. It is big and heavy and solid. It became one of his favorites immediately and goes in and out of the house and even to bed with him.
Now if only we could find a stuffy that he can’t destroy.
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Reviewed in the United States on May 23, 2026
★★★★★ 3
MY DOG'S AREN'T INTERESTED ...
Color: Red
This is a large, heavy, hard rubber toy, so is of high quality. However, it is SO heavy that neither my 60-lb. female Boxer nor my 80-lb. male Bully will 'play' with it at all. They don't even chew on it. So, although it would probably be pretty indestructible, I have no way to verify that, since neither of my dogs show any interest at all. I've tried encouraging them, by holding on one end of it and encouraging them to grab the other end, but even that didn't work. Perhaps a much larger 'giant' breed dog would enjoy it.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Tough chewer for sure
My dog destroys toys. These are amazing, she chewys on them tell she's a slobbery mess. And they are holding strong. Glad a found these!
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Reviewed in the United States on February 10, 2026
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