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Description
Ai -30°C 40L Recirculating Chiller with Centrifugal PumpOverview Ai C30 series recirculating chillers are the true thermostatic control laboratory chiller, these closed laboratory chillers are ideal for applications such as cooling rotary evaporators, analytical instrumentation, laser etching, ICP, vacuum systems, plasma etching and jacketed reactors. This system can also be used as a replacement to tap water cooling in laboratory applications. Ai C30 are compressor based recirculating chillers that offer
Overview
Ai C30 series recirculating chillers are the true thermostatic control laboratory chiller, these closed laboratory chillers are ideal for applications such as cooling rotary evaporators, analytical instrumentation, laser etching, ICP, vacuum systems, plasma etching and jacketed reactors. This system can also be used as a replacement to tap water cooling in laboratory applications.
Ai C30 are compressor-based recirculating chillers that offer outstanding performance and high reliability as well as quiet operation and ease-of-use. Powerful force/suction pump provides constant flow rates, while microprocessor PID controller gives you the ideal solution when you need precise temperature control or cooling below ambient temperature.
Features:
- ETL tested to UL and CSA standards
- No dry ice or liquid nitrogen needed
- Advanced PID digital temp controller
- Built-in chilling fluid filter protects the recirculating pump and prevent blockage
- All steel construction for durability
- Eco-friendly R404A refrigerant
- Cost saving as the water consumption is completely eliminated
- Built-in casters for mobility
- Insulated tubing included
- Recommended for 50L rotary evaporators
Please Note: --30°C/-22°F ULTIMATE TEMPERATURES ARE TESTED UNDER EMPTY LOAD CONDITION (NO ROTARY EVAPORATORS OR JACKETED REACTORS ATTACHED).
Key Attributes
| Type | Chiller |
| Incubation | No |
| Refrigeration | Yes |
| Temp Range (°C) |
Ambient to -30°C (No load) |
| Capacity (L) | 30 L |
| Circulation | External Only |
| Brand | Across International |
| MaxFlow Rate (l/min) | 30 |
| Temp Stability (°C) | ±2°C |
| Timer | Yes |
| Alarms | Yes |
| Digital or Mechanical | Digital |
| Data connection | No |
| Tank Material | Stainless Steel |
| Sample Agitation | No |
| Media Racks Available | No |
| Warranty (years) | 1 |
| Weight (lb) | 365 |
| Width (in) | 40 |
| Depth (in) | 25 |
| Height (in) | 41 |
Manufacturer Specifications
| Model | C30-40-50L |
| Temperature range | Ambient to -30°C (No load) |
| Electrical requirements | 220V 60Hz 1-PH 18A, 3,960 watts (Not compatible with 50Hz power) |
| Cooling capacity (Assuming working environment 25°C/77°F) |
@ 32°F/0°C: 5,000W @ 14°F/-10°C: 3,000W @-4°F/-20°C: 1,800W @-22°F/-30°C: 1,000W |
| Compressor | Make: KK Power: 208-230V 60Hz 1-PH Number of compressor: one Refrigerant: R404A (3.2 kgs) |
| Recirculating pump | Model: 25PLBR30-10 Type: Centrifugal Output: 280 watts Pumping speed: 30 L/min or 8 gallon/min Maximum pressure: 1 bar |
| Coolant outlet pressure | Displayed on the built-in mechanical pressure gauge |
| Reservoir | Material: Type 304 stainless steel,polished Chilling fluid connection: 3/4" NPT Drain port: 1/2" NPT Overflow port: 3/8" hose barb Capacity: 40 liters or 10.6 gallons Dimensions: 17.5 x 17.5 x 9.5" (WxDxH) |
| Radiator | Fan motor Make: Boyoung Model: YWF4E-400 Power: 220V 60Hz 1.3A 300W Rotation speed: 1550 rpm Flow rate: 4240 m3/hour Cleaning Clean radiator fins with a fin comb every three months |
| Temperature controller |
Type: Digital microprocessor PID controlled |
| Temperature sensor type |
Pt100 |
| Housing | Powder coated type 42 stainless steel |
| Recommended coolant | For 50°F/10°C or higher: distilled water Between50°F/10°C and -22°F/-30°C: 50% ethylene glycol + 50% distilled water |
| Working environment | -15°C/5°F to 25°C/77°F, at <66% humidity |
| Built-in swivel casters | Four |
| Unit/shipping dimensions | 40 x 25 x 41" / 46 x 30 x 51" (WxDxH) |
| Unit/shipping weight | 365 Lbs / 480 Lbs |
| Safety | Compressor over-temp protection Compressor delay start protection Short circuit and ground protection Over-current protection Over-voltage protection |
| Recommended for rotary evaporators | Ai 50L SolventVap rotary evaporators |
| Warranty | One year |
| Compliance | UL 61010-1 :2012 Ed.3+R:29Apr2016 CSA C22.2#61010-1 :2012 Ed.3 |
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
4.8 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Great scale, an excellent buy
Color: Black&Silver
Is it possible to fall in love with a scale? I unboxed this one and, without reading any directions, put an empty 1/4 cup on it, turned the scale on, filled the 1/4 cup with coffee beans till I had the desired 17 or so grams, and turned the scale off. Easy-peasy! It’s small but sensitive, able to tell when a single bean has been added or removed. I almost didn’t get it because of the charging issue, but at least it tells you what the current charge is, and the way I use it I believe it will last several months without recharging. I’m so glad I bought this scale!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
Simple yet easy must have for discerning coffee drinkers
Color: Black&Silver
I seem to never get the same results from my coffee machine and it varied even more with the new brand that we just bought. I now have to make more adjustments with the water temperature, based on age, type of beans, etc. That affects the amount of ground dispensed and consistency in the shot until I get a new batch dialed in.
So the only way to regulate these changes is to weigh both the beans and water. Using this little scale has made things easier, less frustrating and more predictable.
What’s awesome is that it will automatically begin the timer with the first drop and stop when the pressure remains constant.
Simple yet easy and super convenient. If you are looking for a great little digital scale this should do the trick. Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
★★★★★ 5
Great Digital Scale!!
Color: Black&Silver
The Maestri House S2 scale has been clutch for dialing in my espresso shots. Memphis heat or not, this thing stays accurate and steady. The timer starts up quick, the readings are fast, and the compact size fits perfectly under my Breville without feeling cramped. It’s built solid, charges by USB‑C, and the precision really shows when you’re trying to get that perfect pull.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
★★★★★ 4
Has fit perfectly into my morning espresso
Color: Black&Silver
This seems to me to be an excellent small kitchen scale. I am new to the complexities of espresso making and have begun using this scale every morning to measure my dose and output. It is working just fine. Easy to operate, keep clean and store. I did not give it 5 stars because I have limited comparisons but I don’t expect and will not bother looking for anything better.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Perfectly fits what I needed for my espresso habit!
Color: Black&Silver
This Maestri House mini coffee scale is a great little tool for espresso and pour-over. The size is compact enough to fit under a portafilter or cup, and the 0.1g accuracy makes dialing in coffee much easier. I like the built-in timer, rechargeable USB-C battery, and clean black-and-silver look. It feels precise, practical, and easy to keep near the espresso machine. Great value for anyone who wants more consistent coffee.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
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