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Description
Julabo CF Cryo-Compact Circulators 3.5 LiterOverview The new CF series offers compact refrigerated heating circulators. With small overall dimensions the units can even be placed on a very small surface or within a complex installation. All models offer a heating capacity of 2 kW and safety class 3 according to DIN12876 1. The maximum ambient temperature of +40C as well as ventilation air cooling allow installing the units very closely side by side with other units or directly under a fume
Overview
The new CF series offers compact refrigerated/heating circulators. With small overall dimensions the units can even be placed on a very small surface or within a complex installation. All models offer a heating capacity of 2 kW and safety class 3 according to DIN12876-1. The maximum ambient temperature of +40°C as well as ventilation air cooling allow installing the units very closely side by side with other units or directly under a fume hood. Furthermore all the models feature pump connections for external temperature applications and a bath opening for temperature control of small objects directly in the circulator bath. Wetted parts are made of high quality stainless steel or plastic. The instruments provide reliable Microprocessor electronics with high temperature stability as well as warning and safety functions.
Features:
- Ergonomic design and easy operation
- Small overall dimensions for lowest space requirement
- Splash-proof keypad
- RS232 interface for PC connection
- Adjustable high temperature cut-off
- Classification 3 according to DIN12876-1
- Pump connections for external temperature applications
- Bath opening for temperature control of small objects in the bath
- Front drain
High-tech model offers additional features that allow more precise control than economy models:
- Bright VFD display and additional interactive LCD dialog display of 3 values,warning functions, high
temperature cut-off, pump stages (resolution 0.01 °C)
- Highly precise 'Intelligent Cascade Control', automatic and self optimizing adjustment of PID control parameters
- TCF Temperature Control Features for individual optimization, additional settings for band limit, limits etc
- Absolute temperature Calibration for manual compensation of a temperature difference, 3-point calibration
- Electronically adjustable pump stages for reliable and consistent pump capacity
- Integrated programmer for the execution of time and temperature dependent profiles, 6 temp profiles with 60 steps max., with real time clock
- External Pt100 sensor connection for precise measurement
- Early warning system for low liquid level for maximum safety and for high/low temperature limits
- 3-point calibration
- RS232/RS485 interface for PC connection
Key Attributes
| Type | Stirred / Circulating Baths |
| Incubation | Yes |
| Refrigeration | Yes |
| Temp Range (°C) | Ambient -30 to 200 |
| Capacity (L) | 3.5 |
| Circulation | Internal & External |
| Brand | Julabo |
| MaxFlow Rate (l/min) | 15, 22-26 |
| Temp Stability (°C) | ±0.03, ±0.02 |
| Timer | Yes |
| Alarms | Yes |
| Digital or Mechanical | Digital |
| Data connection | Yes |
| Tank Material | Stainless Steel |
| Sample Agitation | No |
| Media Racks Available | No |
| Warranty (years) | 1 |
| Weight (lb) | 79 |
| Width (in) | 9.4 |
| Depth (in) | 18.1 |
| Height (in) | 15.7 |
Manufacturer Specifications
| Model No. | CF30 | CF31 |
| Model series | Economy | HighTech |
| Model # | CF30 | CF31 |
| Working temperature range (°C) | -30 ... +150 | -30 ... +200 |
| Temperature stability (°C) | ±0.03 | ±0.02 |
| Setting / display resolution | 0.1 °C | 0.01 °C |
| Integrated programmer | N/A | 6x60 steps |
| Temperature Display | LED | VFD , LCD |
| Heating capacity (kW) | 1 | 1 |
| Cooling capacity (Medium Ethanol)°C | 20, 0, -20 | 20, 0, -20 |
| Cooling capacity (Medium Ethanol) kW | 0.32, 0.25, 0.15 | 0.32, 0.25, 0.15 |
| Pump capacity flow rate (l/min) | 15 | 22-26 |
| Pump capacity flow pressure (psi) | 5.1 | 5.8-10.2 |
| Pump capacity flow suction (psi) | N/A | 2.9-5.8 |
| Bath opening / bath depth (W x L / D inch) | 6.3 x 1.2 / 5.5 | 6.3 x 1.2 / 5.5 |
| Pump connections | M16x1 | M16x1 |
| Barbed fittings diameter (inner dia. / mm) | 8 / 12 | 8 / 12 |
| Filling volume (liters) | 3.5 | 3.5 |
| Refrigerant | R134a | R134a |
| External Pt100 sensor connection | N/A | integrated |
| Digital interfaces | RS232, Optional Profibus | RS232, RS 485, Optional Profibus |
| Ambient temperature | 5...40 °C | 5...40 °C |
| Dimensions W x L x H (inch) | 9.4 x 18.1 x 15.7 | 9.4 x 18.1 x 15.7 |
| Weight (LBS) | 77 | 79 |
| Classification according to DIN12876-1 | Classification III (FL) | Classification III (FL) |
| Included with each unit | 2 each barbed fittings for tubing 8 and 12 mm inner dia. (pump connections M16x1 female). | 2 each barbed fittings for tubing 8 and 12 mm inner dia. (pump connections M16x1 female). |
| Cooling of compressor | Air | Air |
| Power requirement V / Hz / A | 115/60/13 Additional voltage versions available | 115/60/14 Additional voltage versions available |
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
4.9 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 3
Missing Dividers
Color: Black, Size: 9.4*4.1*5IN
Disappointed it was missing the adjustable dividers.
Not great to hold dishwashing brushes. They slip right threw the side.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
★★★★★ 4
Sturdy. Built to last. It solves all the problems my old organizer had. Very satisfied.
Review for ARTLEO Kitchen Sink Caddy with Super Water Absorbent Diatomite Stone Sink Tray, Fast Drying Sink Organizer with High Dish Brush Holder Sponge Holder for Kitchen Sink, Stainless Steel
This appears to be a sturdy organizer of stainless steel painted with a good amount of black protective paint. I ordered it to replace an inferior organizer of the same material (made by a different company altogether).
This one solves the problems I had with my previous organizer which had begun to rust and break apart after six months of use.
The narrow steel bars on the bottom shelf of this new organizer are supported by wider steel flats in the frame that will prevent them from breaking off the frame. (My old organizer bars broke because they were barely welded onto the frame and the repeated "pushing down" of my soap pump-bottle eventually broke them apart from the frame).
The pads that prevent it from sliding across my counter in big waves (we live and travel on a boat) are secured around the steel legs as opposed to just being glued onto the bottom (like the pads of my previous organizer were, which fell off). There is no metal hanging over onto the sink edge to cause rust (like the metal that had caused rust with my old organizer.)
The dish-brush holder can fit on the inside of the frame or it can hang on the outside of the organizer, which is nice because it makes more room if you have many tools that you like to use at the sink. And it can be compact if you don't. Be cautious not to remove the hanging part (dish-brush holder) too often because repeated wear can cause the paint to rub off and it could begin to rust.
The "Water Absorbent Diatomite Stone" is new to me but it seems to be working just fine. I assume I will have to clean out the ridges of it as gunk forms there, but that would be the case with any sink organizer tray.
I am very satisfied with this organizer, it is robust and it solves all the problems I had with my previous one.
The price is on the higher side of similar organizers, currently priced at $23.99.
All the best,
Mrs. dr
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Reviewed in the United States on June 16, 2025
★★★★★ 5
Cosina
Color: Black, Size: 9.4*4.1*5IN
Excelente producto
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Reviewed in the United States on January 23, 2026
★★★★★ 5
Well made kitchen caddy
Color: Black, Size: 9.4*4.1*5IN, Color: Black, Size: 9.4*4.1*5IN
Appears to be well made. Just the right size, not too large or small. After purchasing and returning several caddies. This one is the keeper. I'm sure be just as pleased as I am. Go for it , you won't regret it.
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Reviewed in the United States on October 19, 2025
★★★★★ 5
Best kitchen sink caddy ever purchased
Color: Black, Size: 9.4*4.1*5IN
Love it!!! Best kitchen sink caddy I've ever purchased!
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Reviewed in the United States on January 1, 2026