COLO.SCIENCE — REFRIGERATED HIGH-SPEED CENTRIFUGATION
RITACUBA18R high-speed refrigerated centrifuge for temperature-sensitive workflows
RITACUBA18R extends the multi-rotor RITACUBA18 platform with active refrigeration. The temperature setting range from −20 to +40 °C supports routine and research methods where sample temperature must be managed during centrifugation rather than left to ambient conditions. Under the stated test conditions, the chamber can cool from 25 °C to 4 °C in approximately six minutes.
The published configuration range covers microtubes, 5 ml, 10 ml, 15 ml and 50 ml tube formats, larger-volume vessels and four 96-well microplates. This allows laboratories to combine temperature control with a broad choice of capacity and target RCF on one benchtop platform.
Key characteristics
- 18,500 rpm maximum speed and 27,100 × g maximum RCF.
- 6 × 100 ml maximum declared capacity.
- −20 to +40 °C temperature setting range.
- Rapid cooling from 25 °C to 4 °C in approximately 6 minutes under stated conditions.
- 5-inch HD touchscreen and 15 stored application groups.
- Automatic rotor recognition with alarm support.
- 10 acceleration and 10 deceleration levels.
- Optional USB export for centrifugation records.
Why refrigeration matters
- Supports temperature-sensitive clinical and biological samples.
- Reduces dependence on room temperature during longer high-speed runs.
- Allows commonly used 4 °C workflows to be set directly on the centrifuge.
- Pairs active refrigeration with low-thermal-conductivity NCP composite rotors.
- Supports method transfer where both RCF and operating temperature are defined.
- Provides one refrigerated platform for several tube and rotor formats.
SELECTION NOTE — RITACUBA18R REFRIGERATED CONFIGURATION
RITACUBA18R high-speed refrigerated centrifuge for flexible rotor and temperature selection
The RITACUBA18R high-speed refrigerated centrifuge should be configured from the method outward. First define tube or plate geometry, working volume, required throughput, target RCF and operating temperature. Then select the compatible rotor and any required adapter. This is more reliable than choosing a centrifuge from maximum rpm alone because rotor geometry determines the actual RCF and capacity available to the method.
For temperature-sensitive protocols, the required set temperature should also be considered together with run duration, sample load and rotor type. RITACUBA18R provides a −20 to +40 °C setting range and active rapid cooling, while selected NCP composite rotors add low thermal conductivity and corrosion resistance.
The refrigerated centrifuge unit, rotor and adapters are selected and quoted separately unless a specific package is explicitly defined. Final rotor compatibility, temperature behaviour, included components and operating limits should be stated in the binding quotation and delivery documentation.
Intelligent refrigeration, NCP rotors and a ceramic-coated chamber
Temperature-controlled high-speed separation
The refrigeration system provides a setting range from −20 to +40 °C and supports controlled operation across common refrigerated centrifugation scenarios. Rapid cooling to 4 °C helps reduce waiting time before temperature-sensitive runs.
Selected NCP carbon nano-polymer composite rotors combine low mass, high strength, low thermal conductivity and corrosion resistance. These properties are especially relevant in a refrigerated platform because the rotor itself contributes less thermal mass than a conventional heavy metal rotor.
The rotor chamber uses a smooth nano-ceramic coating as an additional corrosion-resistant barrier. The one-piece T45 high-strength steel body, three-stage rubber vibration absorption and automatic balancing support stable benchtop operation.
TECHNICAL SPECIFICATIONS — RITACUBA18R HIGH-SPEED REFRIGERATED CENTRIFUGE
| Model | RITACUBA18R |
| Order number / SKU | PRO7071 |
| Centrifuge type | Benchtop high-speed refrigerated centrifuge |
| Maximum speed | 18,500 rpm |
| Maximum RCF | 27,100 × g |
| Maximum capacity | 6 × 100 ml |
| Speed accuracy | ±10 rpm |
| Timer | 1 s–99 min 59 s / 1 min–99 h 59 min |
| Stored programs | 15 application groups |
| Acceleration / deceleration | 10 levels; approximately 20 s–9 min |
| Display / control | 5-inch HD touchscreen |
| Rotor recognition | Automatic compatible-rotor recognition with alarm support |
| Operating modes | Timed, jog, differential and gradient centrifugation |
| Temperature setting range | −20 to +40 °C |
| Rapid cooling | 25 °C to 4 °C in approximately 6 min under stated test conditions |
| Refrigerant | Environmentally considerate refrigerant |
| Noise level | ≤65 dB(A) |
| Data export | Optional USB export |
| Body construction | Single-stamped T45 high-strength steel body |
| Rotor chamber | Corrosion-resistant chamber with nano-ceramic coating |
| Vibration control | Three-stage rubber vibration absorption with automatic balancing |
| Safety support | Automatic rotor recognition, imbalance protection, alarm functions and emergency lid release |
| Total power | 1,200 W |
| Power supply | AC 220 V ±10%, 50 Hz, 16 A |
| Dimensions (W × D × H) | 63 × 40 × 29 cm |
| Net weight | 55 kg |
Maximum instrument performance depends on the selected rotor. Operating speed, RCF, capacity and temperature behaviour must remain within the stated limits of the installed rotor, adapter, tube or microplate, sample load and laboratory SOP.
Compatible rotors for the RITACUBA18R refrigerated centrifuge
NCP
Composite Rotor TechnologyLightweight · low thermal conductivity · corrosion-resistant
COLO rotor SKU: PRO3376
2 × 2 × 96-well microplate rotor
4,000 rpm · 2,300 × g
Capacity for four 96-well microplates
COLO rotor SKU: PRO6945
12 × 10 ml angle rotor
6,000 rpm · 6,321 × g
10 ml round-bottom tubes · NCP composite
COLO rotor SKU: PRO3885
12 × 1.5 / 2 ml angle rotor
16,500 rpm · 21,610 × g
Microtubes 1.5 / 2.0 ml · NCP composite
COLO rotor SKU: PRO6935
24 × 1.5 / 2 ml angle rotor
15,000 rpm · 22,387 × g
Microtubes 1.5 / 2.0 ml · NCP composite
COLO rotor SKU: PRO6936
36 × 1.5 / 2 ml angle rotor
15,000 rpm · 22,262 × g
Microtubes 1.5 / 2.0 ml · NCP composite
COLO rotor SKU: PRO6937
48 × 1.5 / 2 ml angle rotor
12,000 rpm · 16,260 × g
Microtubes 1.5 / 2.0 ml · NCP composite
COLO rotor SKU: PRO6938
18 × 5 ml angle rotor
15,000 rpm · 24,148 × g
5 ml round-bottom tubes · NCP composite
COLO rotor SKU: PRO6940
12 × 15 ml angle rotor
11,000 rpm · 15,620 × g
15 ml conical-bottom tubes · optional 12 × 5 ml adapter · NCP composite
COLO rotor SKU: PRO6934
6 × 50 ml angle rotor
11,000 rpm · 14,440 × g
50 ml Falcon-type tubes; configurations for 6 × 15 ml conical or 6 × 10 ml round-bottom tubes · NCP composite
COLO rotor SKU: PRO2859
4 × 120 ml angle rotor
4,000 rpm · 2,683 × g
Available adapters: 4 × 50 ml and 8 × 15 ml + 1.5 ml
Adapter: PRO6941 · 12 × 5 ml ADR round-bottom tube adapter for use with rotor PRO6940, subject to the PRO6940 limit of 11,000 rpm / 15,620 × g.
Configuration control: RITACUBA18R is supplied as a refrigerated centrifuge unit. Rotor and adapter selection is separate and must be confirmed against tube format, sample volume, target RCF, required operating temperature and the laboratory method.
Refrigeration, method control and safety functions
Intelligent temperature control
The refrigeration system provides a −20 to +40 °C setting range and supports commonly used refrigerated operating conditions, including 4 °C workflows.
Rapid cooling
Under the stated test conditions, the chamber can cool from 25 °C to 4 °C in approximately six minutes, reducing preparation time before refrigerated runs.
Automatic rotor recognition
The control system identifies compatible rotor configurations and provides alarm support to reduce incorrect operating selections.
15 application groups
Frequently used centrifugation settings can be stored and recalled from the HD touchscreen for more repeatable routine methods.
Programmable dynamics
Ten acceleration and deceleration levels with soft start and stop control help protect gradients and sensitive pellets from unnecessary remixing.
Emergency lid release
Controlled sample access is available after a power interruption, following the operating manual and only after the rotor has fully stopped.
Applications of the RITACUBA18R high-speed refrigerated centrifuge
Clinical laboratories
Temperature-controlled rotor configurations can support validated separation of blood fractions, urine sediments and other clinical specimens where sample temperature must be managed.
Molecular biology
High-speed microtube rotors and refrigeration support pelleting, nucleic-acid preparation steps and general sample preparation before downstream analysis.
Biochemistry
Multiple tube capacities support clarification, phase separation and preparation of samples where both centrifugal force and operating temperature are method parameters.
Bioengineering and research
The broad rotor range supports cell suspensions, culture samples, microplates and research specimens while active refrigeration helps maintain controlled processing conditions.
RITACUBA18 PLATFORM SELECTION
When to choose RITACUBA18R instead of the ambient RITACUBA18N
Choose the refrigerated RITACUBA18R when the method specifies a controlled temperature, when biological material is temperature-sensitive, or when heat generated during longer or higher-speed runs could influence the sample. The active refrigeration system adds a −20 to +40 °C setting range and rapid chamber cooling while retaining the broad multi-rotor concept of the RITACUBA18 platform.
For routine methods where temperature control is not required, an ambient centrifuge may be the simpler configuration. For procurement, it is therefore useful to define not only tube type, RCF and capacity but also the actual operating temperature required by the laboratory SOP.
LABORATORY CENTRIFUGES CATALOGUE
Compare refrigerated centrifuge platforms and rotor configurations
Use the centrifuge catalogue to compare speed, RCF, capacity, tube formats, refrigeration, temperature range and application fit before selecting the final configuration.
COLO.SCIENCE KNOWLEDGE AND SUPPORT
Configure the centrifuge from the sample, RCF and temperature requirement
COLO.Science supports centrifuge selection by matching tube geometry, sample volume, target RCF, throughput, rotor material, balancing requirements, operating temperature and documentation needs.
How to select the correct RITACUBA18R rotor and operating temperature
Start with the consumable and the method. Confirm tube, vessel or plate type, nominal and working volume, diameter, bottom geometry, cap design, chemical compatibility and the tube manufacturer’s maximum allowable RCF or speed. Then define the number of samples per run and the actual centrifugal force required.
For refrigerated methods, also define the required operating temperature. A 4 °C protocol should be treated as a method requirement rather than an optional convenience, particularly for temperature-sensitive biological samples. Rotor load, pre-cooling state and run duration can all influence actual sample temperature, so the validated laboratory method remains the final reference.
Finally, compare compatible rotor capacity and RCF. A higher-capacity rotor may have a lower maximum speed, while a smaller microtube rotor may provide substantially higher RCF. The correct configuration is therefore the combination that meets tube geometry, throughput, RCF and temperature requirements simultaneously.
RITACUBA18R high-speed refrigerated centrifuge FAQ
What is the maximum performance of RITACUBA18R?
The instrument is specified for up to 18,500 rpm and 27,100 × g with a maximum declared capacity of 6 × 100 ml. Actual maximum values depend on the installed rotor.
What temperature range does RITACUBA18R provide?
The temperature setting range is −20 to +40 °C. Under the stated test conditions, the chamber can cool from 25 °C to 4 °C in approximately six minutes.
Are the rotor and adapters included with the centrifuge?
The RITACUBA18R is presented as a refrigerated centrifuge unit. Rotor and required adapters are selected separately unless the quotation explicitly defines a package.
Can RITACUBA18R centrifuge 96-well microplates?
Yes. The published PRO3376 rotor is rated for four 96-well microplates at up to 4,000 rpm and 2,300 × g.
Why are NCP composite rotors useful in a refrigerated centrifuge?
The published NCP rotor technology combines low mass, high strength, low thermal conductivity and corrosion resistance. In a refrigerated workflow, lower thermal conductivity and lower rotor mass can also support convenient handling and temperature-controlled operation.
Configuration notice
The official quotation defines the final RITACUBA18R delivery scope, including the refrigerated centrifuge unit, selected rotor, adapters, electrical configuration, optional USB export and documentation requirements. Exact performance, capacity, temperature behaviour and compatibility depend on the selected configuration. Website content is intended for general product presentation and may not represent the exact delivered system. Specifications may change without notice.
COLO LABEXPERTS — PRODUCT SUPPORT
COLO LabExperts · Slovenia
Polje ob Sotli 4, SI-3255 Slovenia
Email: sales@colo.si
WhatsApp / Viber: +386 70 713 437
