Publish Time: 2026-10-10 Origin: Site
A custom centrifuge rotor project should begin only after the application has been reduced to a clear set of physical and operating requirements. The useful starting point is not a requested rotor diameter or a target RPM.
It is the combination of vessel geometry, required RCF, samples per run, operating temperature and centrifuge platform .
If an existing rotor and adapter can already meet these requirements, that standard configuration is usually the simpler solution. Custom rotor work becomes relevant when the standard rotor system cannot create the required working configuration.
A non-standard vessel does not automatically require a non-standard rotor. The first task is to determine whether the existing rotor architecture can solve the application directly or with the correct adapter.
If an existing rotor correctly supports the vessel and already provides the required RCF and number of positions, there is little reason to introduce a new rotor design.
If the rotor envelope and operating range are already suitable, a properly matched adapter may convert the existing position to the required vessel geometry.
In a swinging system, the main rotor or bucket may remain usable while a different insert or adapter solves the vessel requirement. Capacity and total loaded mass still need to be considered.
A new rotor becomes relevant when the required vessel geometry, RCF, batch capacity and machine compatibility cannot be achieved through the existing rotor and adapter system.
Nominal volume identifies how much a vessel can hold. It does not define the three-dimensional object that must be supported inside a rotor, bucket or adapter.
A new rotor should not be described by one requested speed or one capacity number. Four requirements need to converge before a useful configuration can be evaluated.
Define the exact physical container: type, dimensions, bottom profile, cap, material, working volume and loaded mass.
If the vessel itself is custom-made, a dimensioned drawing or physical sample provides more useful information than a generic description such as “similar to a 50 mL tube.”
Provide the required RCF whenever the protocol specifies it. If an existing method uses RPM only, include the previous rotor or centrifuge information where available.
A new rotor radius can change the RCF generated at the same RPM, so reproducing an old RPM number does not automatically reproduce the same centrifugation condition.
Define the number of real samples that must be processed in one run. Capacity should be expressed as actual vessels per batch rather than only total nominal millilitres.
More positions also mean a different total loaded mass and geometry. The useful target is therefore the required throughput at the required operating condition.
A rotor cannot be evaluated independently of the centrifuge platform. The target machine, chamber space, drive/interface arrangement, speed range and refrigerated or ambient workflow all matter.
The machine's maximum RPM should not be assumed to be the permitted operating speed of a newly evaluated rotor configuration.
“We need a custom 15,000 rpm rotor for 50 mL tubes.”
This does not define which 50 mL vessel is used, how many samples are required, what RCF the protocol needs, the loaded mass or which centrifuge platform will drive the rotor.
“This vessel is Ø29 × 118 mm, 45 mL working fill, X g required, 12 samples per run, refrigerated workflow.”
This information defines a real application that can first be checked against existing rotor and adapter options and then evaluated as a custom requirement if no standard configuration fits.
Before opening a custom rotor project, compare the vessel and workflow with existing GlanLab platforms. Several current centrifuges already support wide rotor families, from microtube and PCR formats to 100 mL tubes, microplates and litre-scale swing configurations.
Current rotor options span micro/PCR formats and larger tubes including 15, 30, 50 and 100 mL configurations. This makes YT16 a useful first platform to check before requesting a new benchtop rotor.
Review YT16 rotor options →YT18/YT18R currently supports a broad rotor family including microtube, PCR, larger tube, microplate and swing configurations. It is a logical platform to review when one project must cover several vessel families.
Review YT18 rotor options →YF12R combines high-speed fixed-angle options with a 4 × 1000 mL swing rotor and microplate configurations. It provides a larger-platform reference when custom work is driven by batch volume rather than only high speed.
Review YF12R rotor options →A tube photo is useful for context, but it is not enough to define a custom rotor project. The following information allows the requirement to be compared with existing rotor options before customization is considered.
| Project Input | Information to Provide | Why It Matters |
|---|---|---|
| Vessel identity | Tube, bottle, plate, cartridge or specialty container | Establishes what the rotor must physically support. |
| Dimensions | Outside diameter, total height, bottom and cap geometry | Defines the physical envelope and required support. |
| Working fill | Actual sample volume used in operation | Nominal vessel capacity may be different from the real working load. |
| Filled mass | Vessel + cap + actual filled sample mass | Helps define the real loaded condition per position. |
| Required RCF | Target ×g from the protocol where available | Defines the required centrifugal field rather than only a requested RPM. |
| Samples per run | Required vessel count per batch | Establishes throughput and total rotor load. |
| Typical run time | Normal operating duration | Adds context to the intended working condition. |
| Temperature | Ambient or refrigerated operation | Determines whether the rotor must be evaluated with a refrigerated platform. |
| Target machine | Existing centrifuge model or required machine class | Rotor selection cannot be separated from the drive and chamber platform. |
| Project quantity | Equipment / rotor quantity and repeat-order expectation | Helps define whether the project is a one-off application or a repeatable OEM configuration. |
| OEM requirement | Branding, market and configuration requirements | Allows the rotor project to be aligned with the final OEM product configuration. |
A successful custom project should not become an undocumented “special rotor” that has to be re-explained every time it is ordered.
For distributors and OEM customers, the useful outcome is a configuration that can be identified again for repeat orders, replacement rotors, adapters and technical support.
GlanLab's current support scope includes centrifuge rotors and tubes, technical support, after-sales support and retained order records. Rotor configuration should therefore remain tied to the machine and order identity used for future supply.
Provide the vessel dimensions or drawing, filled mass, required RCF, samples per run, temperature requirement and target centrifuge if already known. GlanLab can first check whether an existing rotor or adapter solves the application before the project moves to a custom rotor review.