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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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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 2114 reviews
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Product Reviews
★★★★★ 5
Durable
Style: Fetch Balls (Pack of 2), Size: 3 inch
Very bouncy. I like the noise it makes when you throw it. Pretty durable. Good size. Dog loves to play with them. Good material. Easy to use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
★★★★★ 4
My dog loves glowing fetch at night!
Style: Glow Balls (Pack of 3), Size: 2.5 inch
Fantastic. Sturdy. My dog loves them
Glow in the dark is great for fetch at night. I keep a flashlight with me because the glow doesn't last really long. But they charge very quickly and are really bright.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026
★★★★★ 5
Indestructible
Style: Fetch Balls (Pack of 2), Size: 3 inch
These balls are indestructible! We have a lab and a lab mix and they CANNOT damage these balls. They love them for fetch and to just chew on them (slightly squishy, but NO damage). Best toys we have bought for them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
★★★★★ 5
Great trial set. Just be careful throwing the orange one!
Style: Assorted Balls (Pack of 3), Size: 2.5 inch
Blue isn't that easy to see in the yard
White charges with bright light/UV and is truly a game changer for night-time fetch. Both dogs clearly favor it.
Orange is easy to see in the grass at day
They're 3 different weights as well, so double trial. I prefer medium for my big dogs, though light performs well too
The orange is HEAVY and unyielding. Do NOT throw it with a ball thrower. It could damage your house or knock your dog out. Seems tough though.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 16, 2026
★★★★★ 3
Not as good as chuck it anymore
Style: Fetch Balls (Pack of 10), Size: 2.5 inch
I have bought these before and the where just like the chuck it balls. These are not those balls. The are lighter and my dog has already cause damage to one
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
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