Julabo CF Cryo-Compact Circulators 3.5 Liter
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Description
Description
Julabo CF Cryo-Compact Circulator – 3.5 Liter
Precision Cooling & Heating from -30°C to +200°C in a Space-Saving Footprint
The Julabo CF Cryo-Compact Circulators deliver high-performance temperature control in an ultra-compact design. With advanced features like intelligent PID temperature regulation, real-time programming, and multiple safety layers, this circulator is ideal for demanding external or internal applications in research labs, industrial testing, and pilot production environments.
Choose from two configurations:
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CF30 Economy – reliable precision control for standard lab needs.
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CF31 HighTech – enhanced control with integrated programmer, higher temperature stability, and LCD/VFD display.
🧪 Key Features
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Wide Temperature Range:
CF30: -30°C to +150°C | CF31: -30°C to +200°C -
Exceptional Temperature Stability:
Up to ±0.02°C (CF31) for highly sensitive applications -
Space-Efficient Design:
Just 9.4” wide—fits under fume hoods or in tight lab spaces -
Flexible Circulation Options:
Internal & external temperature control with M16x1 pump connections -
Precise Control Interface:
CF30 features simple LED display, CF31 adds interactive LCD + VFD with 0.01°C resolution -
Advanced Programming (CF31):
Built-in timer and 6 temperature profiles with up to 60 steps each -
Safety Class III (DIN12876-1):
Rated for use with flammable liquids, ideal for organic solvents and process engineering
📊 Model Comparison
| Feature | CF30 (Economy) | CF31 (HighTech) |
|---|---|---|
| Temp Range | -30°C to +150°C | -30°C to +200°C |
| Temp Stability | ±0.03°C | ±0.02°C |
| Display | LED | VFD + LCD |
| Resolution | 0.1°C | 0.01°C |
| Pump Flow | 15 L/min | 22–26 L/min |
| Pump Pressure | 5.1 psi | 5.8–10.2 psi |
| Programming | ❌ | ✅ 6x60 step profiles |
| External Pt100 Sensor | ❌ | ✅ Included |
| RS232 Interface | ✅ | ✅ RS232 + RS485 |
| Suction Capability | ❌ | ✅ 2.9–5.8 psi |
| Weight | 77 lbs | 79 lbs |
| DIN Classification | Class III (FL) | Class III (FL) |
🔬 Applications
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Temperature control of photometers, viscometers, refractometers
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External closed-loop circulation in pilot reactors or analytical instruments
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Calibration tasks and thermal conditioning of test materials
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Solvent recovery and distillation processes
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Sample preparation in biotechnology and chemistry
⚙️ Technical Overview
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Reservoir Volume: 3.5 L
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Cooling Capacity (Ethanol): 0.32 kW @ 20°C, 0.25 kW @ 0°C, 0.15 kW @ -20°C
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Heating Power: 1 kW
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Refrigerant: R134a
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Bath Opening (WxL/D): 6.3 x 1.2 in / 5.5 in deep
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Ambient Range: 5°C to 40°C
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Power Requirements: 115V, 60Hz, 13–14A
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Included Accessories: 2 barbed fittings for 8 & 12 mm tubing
❓ FAQ
Can this unit be used with flammable bath fluids?
Yes. Both CF30 and CF31 are DIN 12876-1 Class III rated for flammable liquids.
Is the CF31 capable of running automated temperature programs?
Yes. The CF31 includes an integrated programmer for up to 6 user-defined temperature profiles, with 60 steps max.
Does the CF31 support external temperature measurement?
Yes. It includes a Pt100 sensor input for closed-loop external temperature control.
How is the CF series cooled?
Each unit uses air cooling, ideal for use under fume hoods or in densely packed installations.
🛒 Ready to Upgrade Your Lab?
The Julabo CF Cryo-Compact Circulators are the ideal balance of precision, footprint, and functionality—perfect for modern laboratories that demand both performance and efficiency.
👉 Buy Now at Lab Equipment Direct and choose between CF30 or CF31 to match your temperature control needs.
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