SKU: 27977731850

PRESTO Process System Compact Circulators

$12320.10 $13689.00
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Description

PRESTO Process System Compact CirculatorsOverview The A30, A40 and W40 process circulators combine high performance and a very compact design with the advantages of the PRESTO series for a working temperature range down to 30 or 40 C. Air cooled or water cooled The new PRESTO units are available as air cooled or water cooled units. Air cooled units do not require water and can be installed anywhere. If you are looking for a flexible solution or if you expect to move the unit frequently, an

Overview

The A30, A40 and W40 process circulators combine high performance and a very compact design with the advantages of the PRESTO series for a working temperature range down to -30 or -40 °C.

Air-cooled or water-cooled The new PRESTO units are available as air-cooled or water-cooled units.

  • Air-cooled units do not require water and can be installed anywhere. If you are looking for a flexible solution or if you expect to move the unit frequently, an air-cooled unit will be the best choice. However, it is important to know that air-cooled units slightly elevate the ambient temperature during operation.
  • Water-cooled units must be connected to an existing cooling water line. These units are even more quiet and can be virtually enclosed during operation. Robust heat exchangers are installed in the water-cooled new PRESTO units. Clogging of the heat exchanger by particles or impure water is virtually impossible.

Features:

  • Heating capacity up to 2.7 kW
  • Cooling capacity up to 1.2 kW
  • Pump pressure up to 19 psi, max. flow rate 40 l/min
  • Temperature stability ±0.01 °C ... ±0.05 °C
  • Built-in 5.7’’ industrial color touchscreen
  • Ports for USB, Ethernet, RS232, Modbus
  • Alarm output
  • External Pt100 sensor connection
  • Analog connections, RS485, Profibus DP (accessory)
  • Second external Pt100 sensor connection for A40 and W40 (accessory)
  • USB (host and device)
  • Ethernet interface
  • Slot for SD cards
  • Modbus
  • RS232

 

Key Attributes
Type Circulating
Incubation Yes
Refrigeration Yes
Temp Range (°C) -40 ... +250°C (-30°C for A30 model)
Capacity (L) N/A
Circulation External Only
Brand Julabo
MaxFlow Rate (l/min) 15, or 38
Temp Stability (°C) ±0.01 to 0.05°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) 137-174

 

Manufacturer Specifications 

Dimensions and volumes

A30

A40

W40

Dimensions (W × L × H)

9.8 x 23.2 x 24.4 in.

13 x 23.2 x 26.4 in.

13 x 23.2 x 26.4 in.

Internal usable expansion volume

1.5 l

2.7 l

2.7 l

Minimal process volume

2.4 l

3.5 l

3.5 l

Active heat exchanger volume

1.4 l

1.7 l

1.7 l

Weight

136.7 lbs

174.2 lbs

172 lbs

Pump connections

M24x1.5 male

M24x1.5 male

M24x1.5 male

Working temperature range

-30.0 ... +250.0 °C

-40.0 ... +250.0 °C

-40.0 ... +250.0 °C

Temperature stability

±0.01 ... ±0.05 °C

±0.01 ... ±0.05 °C

±0.01 ... ±0.05 °C

Setting the resolution of the temperature display

0.01 °C

0.01 °C

0.01 °C

Temperature display resolution

0.01 °C

0.01 °C

0.01 °C

Ambient temperature

+5.0 ... +40.0 °C

+5.0 ... +40.0 °C

+5.0 ... +40.0 °C

Data based on voltage version:

208V/60Hz (Nema N6-20 Plug)

208V/60Hz (Nema N6-20 Plug)

208V/60Hz (Nema N6-20 Plug)

Heating capacity

2 kW

2.3 kW

2.3 kW

Cooling capacity (Medium: Ethanol)

200°C=0.5kW \ 100°C=0.5kW \ 20°C=0.5kW \ 0°C=0.4kW \ -10°C=0.3kW \ -20°C=0.2kW \ -30°C=0.05kW

200°C=1.2kW \ 100°C=1.2kW \ 20°C=1.2kW \ 0°C=0.9kW \ -10°C=0.8kW \ -20°C=0.6kW \ -30°C=0.3kW \ -40°C=0.1kW

200°C=1.2kW \ 100°C=1.2kW \ 20°C=1.2kW \ 0°C=1kW \ -10°C=0.8kW \ -20°C=0.55kW \ -30°C=0.3kW \ -40°C=0.07kW

Pump capacity flow rate

15 l/min

16 ... 38 l/min

16 ... 38 l/min

Pump capacity flow pressure

7.3 bar

1.5 ... 18.9 psi

1.5 ... 18.9 psi

Viscosity max.

50 cST

50 cST

50 cST

Refrigerant stage 1

R449A

R449A

R449A

Global Warming Potential for R449A

1397

1397

1397

Filling volume

314 g

430 g

380 g

Carbon dioxide equivalent

0.439 t

0.601 t

0.531 t

Cooling of compressor

1-stage Air

1-stage Air

1-stage Water

Other

N/A

N/A

Cooling water pressure max. 87 ... 79.8 psi

Sound pressure level

54 dbA

55 dbA

53 dbA

Classification according to DIN12876-1

Classification III (FL)

Classification III (FL)

Classification III (FL)

IP Code according to IEC 60529

IP 21

IP 21

IP 21

Pump type

Centrifugal Pump (Magnetically coupled)

Centrifugal Pump (Magnetically coupled)

Centrifugal Pump (Magnetically coupled)

External pt100 sensor connection

integrated

integrated

integrated

2nd external Pt100 sensor connection

not available

accessory

accessory

Integrated programmer

8x60 steps

8x60 steps

8x60 steps

Temperature control

ICC

ICC

ICC

Absolute temperature calibration

3 Point Calibration

3 Point Calibration

3 Point Calibration

Temperature display

5.7" TFT Touchscreen

5.7" TFT Touchscreen

5.7" TFT Touchscreen

Temperature setting

Touchscreen

Touchscreen

Touchscreen

Cooling Water Connection

N/A

N/A

G¾ in.

Cooling water temperature max.

N/A

N/A

40 °C

1.0Cooling water consumption

N/A

N/A

1 l/min

Cooling water difference pressure

N/A

N/A

7.3 bar
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 27977731850

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4.3 ★★★★★
Based on 13 reviews
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Product Reviews
A
Verified Purchase
Ang
Carnegie, US
★★★★★ 5
Wrong order on my part
Capacity: 4GB | 1.12TB Storage, Color: Gold
It’s good but I ordered the wrong kind
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026
M
Verified Purchase
MasterofNone
Louisville, US
★★★★★ 5
A Genuine Game-Changer for Manufacturing Management
Color: Matte Black, Clear Lenses, Size: Standard
A Genuine Game-Changer for Manufacturing Management These glasses have been nothing short of life-altering for my career. As a production manager overseeing a manufacturing facility, documenting Standard Operating Procedures (SOPs) has always been a significant hurdle. My primary goal in purchasing these was to record high-quality POV video of processes, which I can then feed into AI tools to generate written SOPs. This isn’t just a win for my productivity; it’s a win for my crew, as it finally provides them with the clear documentation they need to succeed, relieving me of the stress that comes with inconsistent training materials. **Design & Comfort** I initially opted for the larger frame, but the height was a bit much aesthetically for my face. The standard size, however, is excellent. I have a history of headaches from standard eyewear after long days, but these remain comfortable for extended wear. They are impressively discreet—I had multiple people compliment them on day one without ever realizing they were smart glasses. They are convincing enough to pass as normal eyewear to the untrained eye. **Performance & Battery** * **Video & Audio:** The video quality is surprisingly clear, and the microphone performance is exceptional. I’ve taken several calls while wearing them, and the recipients couldn’t tell the difference between these and my phone’s handset. The audio is solid—provided you keep your expectations realistic regarding the low end. The bass is sufficient for daily listening. * **Battery:** This is the one area that requires adjustment. You’ll get about 30+ minutes of continuous recording, which drains the battery quickly. However, the charging speed via the included case is remarkably fast, which helps mitigate the downtime. **The "Unexpected" Features** While I bought these for SOP documentation, the note-taking and translator features have been revelations. On the production floor, I’m constantly pulled in four different directions. When I need to track material requests or quick process changes on the fly, these allow me to capture information immediately so nothing slips through the cracks. It has turned a single-use tool into an all-day essential. **Verdict** I am currently investigating sourcing safety-rated lenses to integrate these into my daily shop-floor workflow. While the frames themselves aren't officially safety-rated, for office-based procedures and light floor work, they have already become a staple of my daily routine. Between the hands-free note-taking, clear communication, and the efficiency they bring to training, these are an incredible value for anyone in a management or technical role. **Pros:** * Excellent microphone and video clarity. * Inconspicuous, stylish design. * Invaluable for hands-free documentation and note-taking. * Fast-charging case. **Cons:** * Battery life is limited during heavy recording sessions. * Frame is not officially rated for high-impact industrial safety environments.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
J
Verified Purchase
JESSICA GARCIA
Lowell, US
★★★★★ 5
Best product on Sale all year!!! Worth every penny!!!
Color: Matte Black, Transitions Grey Lenses, Size: Standard
I was so super excited to get my glasses. They are super easy to set up and come in awesome RanBan case!!😍 I am a photographer and I bought to record my shoots of my clients are comfortable with it and the video quality is amazing!!! I also have a Mother in Law coming and for the first time I will be able to communicate with her with its translation ability!!!! 10 out 10 product!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
K
Verified Purchase
Kaab
Natrona Heights, US
★★★★★ 5
Impressive Smart Glasses for Recording and Everyday Use – Very Cool Tech
Color: Matte Black, Clear Lenses, Size: Standard
I picked up the Ray-Ban Meta (Gen 2) Wayfarer mainly for hands-free recording and the AI features, and overall it’s a really cool piece of wearable tech. The design looks just like normal Ray-Bans, so they don’t feel gimmicky or overly “techy” when wearing them in public. The camera quality is surprisingly good for glasses. Video and photos come out clear, and it’s incredibly convenient being able to record exactly what you’re seeing without pulling out your phone. Audio capture is also solid, and the open-ear speakers work well for calls and quick media playback. Battery life has been noticeably improved compared to earlier smart glasses, and they’ve been reliable during regular use. Pairing and app integration were straightforward, and once set up, everything just works in the background. My only real disappointment is that there’s no integrated screen or display. For a device that can see what you see and has AI capabilities, having some kind of built-in visual feedback would have made the experience even more powerful. That said, as a recording device and AI-assisted wearable, these are genuinely impressive. If you want discreet, hands-free video capture in a stylish form factor, the Ray-Ban Meta Wayfarer is a very unique and well-executed smart device.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
S
Verified Purchase
Sean
Lexington, US
★★★★★ 4
Not Perfect but Nice 👋
Color: Shiny Black, Green Lenses, Size: Large
Looks like regular sunglasses. 🤙 The AI is pretty basic. The responses are basic. Battery life is fairly good and the case as a portable charger extremely cool. Why did I get these? FOR THE CAMERA. The video recording is good. Good picture quality and this is the only camera glasses with image stabilization. When manufacturers make wearables recording video image stabilization is a must. Here its good. The footage is not shaky. But this coolness is only available in 1080p even though this records 2k or 2.7k. The app works fairly good but a tiny bit finicky as videos are not always loading to your gallery on phone or app automatically. The app in general is cool in creating some videos but again basic and limited with restrictions. The thing I don't like is connecting to an app which all these companies do to grab your data. Seems to be more about the app than the product. They only things that bug me about this is the 5min recording limit and the flashing light that is a distraction to the person being filmed. There are no blinking lights on our cellphones when recording. You can turn off LED blinking lights on all cameras but here they claim some privacy issues. When in public there is no right to privacy. When in private property and you suspect anyone recording with anything and you don't want it then say so other than than that there are cameras everywhere. They can record us but we can't record them? We don't need the blinking light and we need longer record times. I would like a seperate SD slot so I don't have to connect to my phone all the time to pull footage. These aren't waterproof so... This is a quality product with good audio and video. Interested in any updates to turn off the blinking LED and recording time extensions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026

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