COLO.SCIENCE — REFRIGERATED HIGH- AND LOW-SPEED CENTRIFUGATION
RITACUBA20R refrigerated centrifuge for temperature-sensitive high- and low-speed workflows
RITACUBA20R combines active refrigeration with interchangeable angle and swing-out rotors for both high-speed and higher-capacity laboratory workflows. 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 1.5/2 ml microtubes, 5 ml, 10 ml, 15 ml and 50 ml tubes, 100 ml and 120 ml angle-rotor vessels, blood collection tubes and swing-out vessels up to 250 ml. This allows laboratories to combine high-speed microtube work and lower-speed, higher-capacity separation with active temperature control on one benchtop platform.
Key characteristics
- 20,000 rpm maximum speed and 29,060 × g maximum RCF.
- 4 × 250 ml maximum declared capacity with the published swing-out configuration.
- −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 99 custom programs.
- 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, biological and research samples.
- Reduces dependence on room temperature during longer high- and low-speed runs.
- Allows commonly used 4 °C workflows to be set directly on the centrifuge.
- Pairs active refrigeration with selected low-mass, 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 — RITACUBA20R REFRIGERATED CONFIGURATION
RITACUBA20R refrigerated centrifuge for flexible rotor, capacity and temperature selection
The RITACUBA20R refrigerated centrifuge should be configured from the method outward. First define tube or vessel 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. RITACUBA20R provides a −20 to +40 °C setting range with stated ±1.0 °C accuracy and 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- and low-speed separation
The refrigeration system provides a setting range from −20 to +40 °C with stated ±1.0 °C accuracy and supports controlled operation across high- and low-speed 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 useful in a refrigerated platform where rotor handling, corrosion resistance and controlled thermal behaviour are important selection factors.
The rotor chamber uses a smooth nano-ceramic coating as an additional corrosion-resistant barrier. Three-stage rubber vibration absorption and automatic balancing support stable benchtop operation.
TECHNICAL SPECIFICATIONS — RITACUBA20R REFRIGERATED HIGH- AND LOW-SPEED CENTRIFUGE
| Model | RITACUBA20R |
| Order number / SKU | PRO7073 |
| Centrifuge type | Benchtop refrigerated high- and low-speed centrifuge |
| Maximum speed | 20,000 rpm |
| Maximum RCF | 29,060 × g |
| Maximum capacity | 4 × 250 ml |
| Speed accuracy | ±10 rpm |
| Timer | 1 s–99 min 59 s / 1 min–99 h 59 min |
| Stored programs | 99 custom programs |
| Acceleration / deceleration | 10 adjustable levels |
| Display / control | 5-inch HD touchscreen |
| Rotor recognition | Automatic compatible-rotor recognition with alarm support |
| Operating modes | Timed, inching, differential-time and gradient centrifugation |
| Temperature setting range | −20 to +40 °C |
| Temperature accuracy | ±1.0 °C |
| Rapid cooling | 25 °C to 4 °C in approximately 6 min under stated test conditions |
| Refrigerant | Environmentally considerate refrigerant |
| Noise level | ≤60 dB(A) |
| Data export | Optional USB export |
| 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, 10 A |
| Dimensions (W × D × H) | 63 × 47 × 34 cm |
| Net weight | 65 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 vessel, sample load and laboratory SOP.
Compatible rotors for the RITACUBA20R refrigerated centrifuge
NCP
Composite Rotor TechnologyLightweight · low thermal conductivity · corrosion-resistant
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: PRO6946
4 × 250 ml swing-out rotor
4,000 rpm · 3,040 × g
Square cups · adapters support 50, 15, 10, 5 and 1.5 ml tubes and blood collection tubes
COLO rotor SKU: PRO2852
6 × 100 ml angle rotor
11,000 rpm · 15,354 × g
Adapters for 6 × 50 ml, 6 × 15 ml and 6 × 3 × 10 ml 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: RITACUBA20R 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 with ±1.0 °C stated accuracy 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.
99 custom programs
Up to 99 custom centrifugation programs 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, pellets and temperature-sensitive samples during method transitions.
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 RITACUBA20R refrigerated high- and low-speed 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, larger-volume vessels and research specimens while active refrigeration helps maintain controlled processing conditions.
RITACUBA20R PLATFORM SELECTION
One refrigerated platform for high-speed microtubes and high-capacity swing-out work
RITACUBA20R is especially useful when one laboratory needs both high-speed angle-rotor separation and lower-speed, higher-capacity refrigerated processing. The published rotor range spans 1.5/2 ml microtubes through 6 × 100 ml and 4 × 120 ml angle rotors to a 4 × 250 ml swing-out rotor with square cups.
For procurement, define tube geometry, working volume, number of samples, target RCF and operating temperature first. The centrifuge’s headline maximum of 20,000 rpm / 29,060 × g is an instrument-level rating; each installed rotor has its own lower or equal operating limit that must be observed.
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 RITACUBA20R rotor and operating temperature
Start with the consumable and the method. Confirm tube or vessel 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.
RITACUBA20R refrigerated centrifuge FAQ
What is the maximum performance of RITACUBA20R?
The instrument platform is specified for up to 20,000 rpm and 29,060 × g, with a maximum declared capacity of 4 × 250 ml. Actual speed and RCF are limited by the installed rotor and adapter configuration.
What temperature range does RITACUBA20R provide?
The temperature setting range is −20 to +40 °C with stated accuracy of ±1.0 °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?
RITACUBA20R is presented as a refrigerated centrifuge unit. The rotor and required adapters are selected separately unless the quotation explicitly defines a complete package.
What is the highest-capacity rotor listed for RITACUBA20R?
The published PRO6946 swing-out rotor provides 4 × 250 ml capacity at up to 4,000 rpm / 3,040 × g. Its square cups can be configured with adapters for several smaller tube formats and blood collection tubes.
Why are NCP composite rotors relevant in a refrigerated centrifuge?
Selected NCP rotor configurations combine low mass, high strength, low thermal conductivity and corrosion resistance. These properties support frequent rotor handling and are useful in temperature-controlled laboratory workflows, while all approved cleaning and operating limits still apply.
Configuration notice
The official quotation defines the final RITACUBA20R 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
