Thermo Scientific BIOFlex HS rotor

Thermo Scientific BIOFlex HS Swinging-Bucket Rotor – 4 x 400 mL

The Thermo Scientific BIOFlex HS Rotor is a high-speed swinging-bucket centrifuge rotor designed for the Thermo Scientific Sorvall LYNX 4000 and LYNX 6000 superspeed centrifuges. With capacity for four 400 mL bottles, a total nominal capacity of 1.6 liters, a maximum speed of 7,000 rpm, and maximum relative centrifugal force of 10,025 x g, the BIOFlex HS combines flexible sample handling with substantially greater centrifugal force than many conventional large-capacity swinging-bucket rotors.

Unlike fixed-angle Fiberlite rotors optimized primarily for rapid pelleting, the BIOFlex HS swings its buckets into a horizontal position during centrifugation. This makes it particularly useful for applications requiring horizontal separation geometry, including cell harvesting, blood and biological sample processing, density-based separations, large-volume centrifugation, conical tubes, bottles, and a wide variety of smaller tube formats used with appropriate adapters.

The BIOFlex HS also incorporates Auto-Lock tool-free rotor exchange, allowing laboratories to quickly switch between BIOFlex HS and compatible fixed-angle LYNX rotors without conventional rotor tools. Optional or included ClickSeal aerosol-tight biocontainment lids, depending on configuration, provide additional protection when processing biological samples where aerosol containment is important.

This pre-owned Thermo Scientific BIOFlex HS rotor from American Instrument Exchange is inspected for rotor and bucket condition, proper weight distribution, seals, and mechanical integrity. When possible, the rotor is operated in a compatible centrifuge to verify proper performance. Refurbished equipment from American Instrument Exchange includes a 90-day warranty.

Thermo Scientific BIOFlex HS Key Features

• High-speed swinging-bucket centrifuge rotor

• 4 x 400 mL capacity

• 1.6 L total nominal capacity

• Maximum speed of 7,000 rpm

• Maximum RCF of 10,025 x g

• Full rated performance in both Sorvall LYNX 4000 and LYNX 6000

• Horizontal bucket orientation at operating speed

• Stainless steel rotor cross

• Aluminum buckets

• Maximum bottle dimensions of approximately 80 x 125 mm

• Maximum load of 600 g per bucket

• Rotor cross weight of approximately 9.6 lb. / 4.36 kg

• Cross with buckets weighs approximately 16.8 lb. / 7.64 kg

• Broad tube and bottle compatibility

• Supports 400 mL wide-mouth Bio-Bottles

• Adapter options for 50 mL conical tubes and numerous smaller tube formats

• Auto-Lock tool-free rotor exchange

• Biocontainment-certified rotor system

• ClickSeal aerosol-tight lid capability

• Suitable for cell harvesting and biological sample processing

• Excellent choice for flexible multi-format centrifugation

• Compatible with Thermo Scientific Sorvall LYNX 4000 and LYNX 6000

• Inspected and tested by American Instrument Exchange

• 90-day warranty included from American Instrument Exchange

Thermo BIOFlex HS Rotor Overview

The Thermo Scientific BIOFlex HS was developed to give laboratories operating the LYNX superspeed centrifuge platform a versatile, high-performance swinging-bucket option.

While fixed-angle rotors are highly effective for rapid pelleting, they are not ideal for every centrifugation workflow.

A swinging-bucket rotor allows sample vessels to hang vertically while the rotor is stationary and swing outward into a horizontal position as centrifugal speed increases.

This changes the way particles sediment through the sample and produces a separation perpendicular to the long axis of the tube.

The resulting geometry is particularly valuable for:

• Density-gradient separations

• Blood and biological fluid processing

• Cell washing

• Cell harvesting

• Interfaces that must remain horizontal

• Large-volume sample processing

• Multiple tube formats

• Applications where pellets at the bottom of the tube are desirable

The BIOFlex HS combines this flexibility with up to 10,025 x g, allowing laboratories to perform applications that exceed the capabilities of many lower-speed swinging-bucket systems.

Thermo Scientific BIOFlex HS Key Specifications

Specification	Details
Manufacturer	Thermo Scientific
Model	BIOFlex HS
Rotor Catalog Number	75003002
Rotor Type	Swinging Bucket
Rotor Cross Material	Stainless Steel
Bucket Material	Aluminum
Capacity	4 x 400 mL
Total Nominal Capacity	1.6 L
Maximum Speed	7,000 rpm
Maximum RCF	10,025 x g
Minimum RCF at Maximum Speed	3,890 x g
Maximum Radius	183 mm
Minimum Radius	71 mm
Operating Angle	Horizontal
K-Factor	4,889
Maximum Vessel Dimensions	80 x 125 mm
Maximum Load per Bucket	600 g
Rotor Cross Weight	4.36 kg / 9.6 lb.
Cross with Buckets	7.64 kg / 16.8 lb.
Maximum Speed – LYNX 6000	7,000 rpm
Maximum RCF – LYNX 6000	10,025 x g
Maximum Speed – LYNX 4000	7,000 rpm
Maximum RCF – LYNX 4000	10,025 x g
Auto-Lock	Yes
Biocontainment	Certified with appropriate components
Compatible Centrifuges	Sorvall LYNX 4000 and LYNX 6000
Condition	Pre-Owned / Refurbished
AIE Warranty	90 Days

Common Applications

The Thermo Scientific BIOFlex HS is well suited for cell harvesting, cell washing, bacterial and yeast processing, blood-component separation, biological fluid processing, large-volume clarification, density-based separations, conical-tube centrifugation, bottle centrifugation, and other procedures where horizontal swinging-bucket geometry is preferred.

Its broad range of compatible adapters makes it particularly useful in shared biotechnology, pharmaceutical, academic, and research laboratories where the same centrifuge may need to process several different sample formats over the course of the day.

Ideal Laboratory Types

The BIOFlex HS is an excellent rotor for biotechnology companies, pharmaceutical research laboratories, cell biology laboratories, molecular biology facilities, microbiology groups, clinical research laboratories, blood-processing laboratories, university research facilities, contract research organizations, process-development laboratories, and multi-user core facilities.

It is particularly attractive for laboratories that need one adaptable swinging-bucket rotor capable of processing both large 400 mL vessels and multiple smaller tube formats.

4 x 400 mL / 1.6-Liter Capacity

At maximum configuration, the BIOFlex HS accommodates four 400 mL Bio-Bottles, providing a total nominal capacity of 1.6 liters per run.

This capacity makes the rotor suitable for medium-volume biological processing without requiring dozens of small tubes.

A laboratory harvesting a culture, for example, can distribute the sample among four 400 mL bottles instead of numerous 15 mL or 50 mL tubes.

Fewer vessels can mean:

• Less sample handling

• Faster loading and unloading

• Easier balancing

• Reduced labeling requirements

• Fewer caps and closures

• More efficient pellet recovery

• Lower risk of sample mix-ups

This makes the BIOFlex HS particularly useful for laboratories moving between small research-scale experiments and larger biological sample volumes.

7,000 rpm / 10,025 x g Performance

The BIOFlex HS operates at a maximum speed of 7,000 rpm, producing up to 10,025 x g.

That level of performance is notable for a swinging-bucket rotor with 1.6 liters of nominal capacity.

Many traditional large-capacity swinging-bucket systems operate at substantially lower maximum RCF.

The BIOFlex HS extends swinging-bucket centrifugation into applications requiring stronger sedimentation while retaining the horizontal separation geometry that makes swinging buckets so versatile.

Potential high-RCF applications include:

• Cell harvesting

• Microbial pelleting

• Dense biological suspensions

• Blood and biological fluid processing

• Cell washing

• Clarification

• Selected density-gradient workflows

Actual permissible speed may be lower when using particular tubes, bottles, adapters, or sample densities.

Same Performance in LYNX 4000 and LYNX 6000

One particularly convenient feature of the BIOFlex HS is that it reaches its full rated performance in both Sorvall LYNX superspeed centrifuge models.

In the LYNX 4000:

Maximum Speed: 7,000 rpm
Maximum RCF: 10,025 x g

In the LYNX 6000:

Maximum Speed: 7,000 rpm
Maximum RCF: 10,025 x g

This makes protocol transfer relatively straightforward for laboratories operating both platforms.

Unlike certain high-speed fixed-angle Fiberlite rotors whose maximum RPM is reduced in the LYNX 4000, the BIOFlex HS has the same maximum operating specifications in either centrifuge.

Swinging-Bucket Centrifugation

The defining characteristic of the BIOFlex HS is its swinging-bucket geometry.

When the rotor is stopped, the buckets hang vertically from the rotor cross.

As the rotor accelerates, centrifugal force causes the buckets to swing outward until they reach a horizontal orientation.

Samples therefore experience centrifugal force along the length of the tube.

At the end of the run, the buckets swing back into the vertical position.

This geometry offers several practical benefits compared with a fixed-angle rotor.

Horizontal Separation Geometry

Horizontal tube orientation can be particularly important for applications in which researchers want distinct layers or interfaces to form perpendicular to the tube axis.

In a swinging-bucket rotor, particles move through the sample toward the bottom of the vessel while the tube is horizontal.

When the rotor stops, the tube returns to vertical orientation with the separated fractions remaining layered along its length.

This is one reason swinging-bucket rotors are often selected for:

• Density gradients

• Blood separation

• Cell washing

• Layered biological preparations

• Applications where clean separation interfaces are important

Fixed-angle rotors can often pellet material faster, but they produce a different sedimentation path and pellet geometry.

Cell Harvesting

The BIOFlex HS is well suited for harvesting biological cells from suspension.

Potential applications include:

• Mammalian cells

• Bacterial cultures

• Yeast cultures

• Microbial suspensions

• Cell-culture process samples

• Research-scale fermentation samples

With up to 1.6 liters of nominal capacity, a substantial culture volume can be processed during each rotor cycle.

For laboratories that need more capacity than a benchtop centrifuge but still want flexible tube configurations, the BIOFlex HS provides an attractive option.

Cell Washing

Swinging-bucket rotors are especially useful for repeated cell washing procedures.

After an initial pellet is formed, supernatant can be removed, cells can be resuspended in wash buffer, and the sample can be centrifuged again.

Because the pellet forms at the bottom of the vertically returned tube rather than along an angled sidewall, pellet recovery and resuspension can be convenient for many cell-processing applications.

This can be particularly useful in:

• Cell biology

• Immunology

• Clinical research

• Vaccine research

• Bioprocess development

• Cell therapy research

Blood & Biological Fluid Processing

The BIOFlex HS can also support compatible blood and biological-fluid workflows when appropriate tubes and adapters are used.

Swinging-bucket rotors are commonly preferred for these applications because their horizontal orientation produces predictable separation layers.

Depending on the specific protocol and labware, potential applications may include:

• Whole blood processing

• Plasma preparation

• Serum preparation

• Cell separation

• Buffy-coat-related research

• Biological fluid clarification

The specific tube, adapter, maximum RCF, and protocol should always be verified for the intended application.

Wide Tube & Bottle Compatibility

One of the major advantages of the BIOFlex HS is its flexibility.

American Instrument Exchange's current listing identifies the rotor as compatible with more than 30 tube configurations, spanning formats from small tubes through conical tubes and 400 mL bottles.

Rather than dedicating the LYNX centrifuge to one sample size, laboratories can configure the BIOFlex HS for a variety of workflows using appropriate inserts and adapters.

This makes the rotor particularly valuable in shared laboratories where centrifugation requirements may change throughout the day.

400 mL Bio-Bottles

Thermo Scientific's standard BIOFlex HS package is configured around four 400 mL polypropylene wide-mouth Bio-Bottles.

The wide-mouth bottle design facilitates loading, pouring, pellet recovery, and cleaning during large-volume applications.

Four bottles provide a maximum nominal sample capacity of:

4 x 400 mL = 1,600 mL

The bottle configuration is particularly useful for:

• Cell culture harvesting

• Microbial cultures

• Biological suspensions

• Larger-volume clarification

• Process-development samples

Always observe the manufacturer's sample-density, fill-volume, bottle, and closure requirements.

50 mL Conical Tube Processing

With the appropriate accessories, the BIOFlex HS can also be configured for 50 mL conical centrifuge tubes.

This expands the rotor beyond large bottles into one of the most commonly used laboratory tube formats.

For biotechnology and molecular biology laboratories, this can make the BIOFlex HS particularly useful because the same rotor can support both:

large-volume bottle processing

and

multiple smaller 50 mL samples

without requiring a completely different centrifuge platform.

Smaller Tube Formats

Adapter configurations can further extend the BIOFlex HS into smaller tube sizes.

Depending on the accessory set, the rotor can support a wide range of laboratory vessel formats.

This allows a single LYNX centrifuge to serve diverse research groups and applications.

When using smaller tubes, laboratory personnel should verify:

• Correct bucket

• Correct adapter

• Tube dimensions

• Maximum tube RCF

• Maximum rotor speed with that adapter

• Required tube fill level

• Correct balancing procedure

The rotor's 10,025 x g capability should never automatically be assumed safe for every tube that physically fits an adapter.

ClickSeal Biocontainment Lids

Thermo Scientific offers ClickSeal biocontainment lids for the BIOFlex HS buckets.

These lids provide an aerosol-tight sealed bucket configuration designed for biological sample processing.

A significant practical advantage of sealed buckets is that if a tube or bottle leaks during centrifugation, the bucket can remain closed while it is removed from the centrifuge and transported to an appropriate biosafety cabinet.

This can reduce the risk of releasing aerosols into the laboratory during sample recovery.

For laboratories processing potentially infectious or aerosol-generating biological materials, sealed bucket systems can provide an important additional layer of containment.

Certified Biocontainment

Thermo Scientific lists the BIOFlex HS with biocontainment certification.

The rotor system was evaluated for biological containment using the appropriate lids and sealing configuration.

Biocontainment is particularly valuable in:

• Microbiology laboratories

• Infectious-disease research

• Cell biology

• Pharmaceutical development

• Vaccine research

• Biological process development

Proper containment depends on the condition and correct installation of all components.

Bucket lids, O-rings, seals, tube closures, and adapters should therefore be inspected routinely.

Stainless Steel Rotor Cross

The BIOFlex HS uses a stainless steel rotor cross.

Stainless steel provides the strength necessary to support the four swinging aluminum buckets during operation at up to 7,000 rpm.

The rotor cross itself weighs approximately:

4.36 kg / 9.6 lb.

Because the buckets pivot on the rotor cross, pivot points and contact surfaces should be kept clean and properly maintained.

Aluminum Buckets

Four aluminum buckets attach to the rotor cross and swing outward during operation.

With all four buckets installed, the rotor assembly weighs approximately:

7.64 kg / 16.8 lb.

Each bucket is rated for a maximum total load of approximately:

600 g

Proper balancing is critical.

Opposing buckets must be loaded symmetrically, and total bucket mass should remain within manufacturer specifications.

Maximum Radius & RCF

The BIOFlex HS reaches a maximum radius of approximately 183 mm when the buckets are in their horizontal operating position.

At 7,000 rpm, the outer portion of the sample therefore experiences up to:

10,025 x g

The minimum radius is approximately 71 mm, corresponding to approximately:

3,890 x g

This difference illustrates why RCF varies along the length of a sample vessel in a swinging-bucket rotor.

Auto-Lock Rotor Exchange

The BIOFlex HS supports Thermo Scientific's Auto-Lock rotor exchange system in the Sorvall LYNX 4000 and LYNX 6000.

Auto-Lock eliminates the conventional process of securing a rotor to the centrifuge spindle with tools.

Instead, the rotor can be installed securely onto the centrifuge drive using a rapid locking mechanism.

This allows laboratories to switch between rotor configurations quickly.

For example, a laboratory can use:

• BIOFlex HS for swinging-bucket applications

• F12-6x500 LEX for high-speed 500 mL bottle processing

• F14-6x250y for 250 mL fixed-angle applications

• F14-14x50cy for high-throughput 50 mL processing

• F20-12x50 LEX for higher-RCF 50 mL separations

all on the compatible LYNX centrifuge platform.

Flexible LYNX Rotor Platform

The BIOFlex HS demonstrates one of the major advantages of the Sorvall LYNX centrifuge platform: the ability to configure a single centrifuge for substantially different applications.

A laboratory can move from high-speed fixed-angle centrifugation to swinging-bucket processing simply by exchanging rotors.

This allows one floor-model centrifuge to support:

• Cell harvesting

• Protein preparation

• Microbial centrifugation

• Large-volume processing

• Density-gradient work

• Conical tubes

• Centrifuge bottles

• Multiple parallel sample formats

For shared biotechnology laboratories, this rotor flexibility can reduce the need for several specialized centrifuges.

BIOFlex HS vs. F12-6x500 LEX

The BIOFlex HS and F12-6x500 LEX are both useful for relatively large sample volumes, but they serve different purposes.

The BIOFlex HS provides:

4 x 400 mL
1.6 L total nominal capacity
7,000 rpm
10,025 x g
Swinging-bucket geometry

The F12-6x500 LEX provides:

6 x 500 mL
3.0 L total nominal capacity
12,000 rpm
24,471 x g
Fixed-angle geometry

Choose the BIOFlex HS when flexible labware, horizontal separation geometry, or swinging-bucket processing is important.

Choose the F12-6x500 LEX when maximum batch volume and stronger pelleting force are the priority.

BIOFlex HS vs. F14-6x250y

The F14-6x250y is a fixed-angle rotor optimized for higher-speed pelleting and clarification.

The BIOFlex HS provides:

1.6 L total capacity
10,025 x g
Horizontal swinging buckets

The F14-6x250y provides:

1.5 L total capacity
Approximately 30,240 x g
Fixed-angle geometry

Interestingly, total capacity is relatively similar.

The major difference is therefore centrifugation geometry and centrifugal force.

Choose the BIOFlex HS for versatility and horizontal separations.

Choose the F14-6x250y for substantially higher-RCF pelleting.

BIOFlex HS vs. F14-14x50cy

The F14-14x50cy is optimized for processing many independent 50 mL samples at higher centrifugal force.

The BIOFlex HS instead prioritizes labware flexibility and swinging-bucket geometry.

A laboratory routinely centrifuging fourteen standardized 50 mL samples may prefer the F14-14x50cy.

A laboratory that moves between bottles, conical tubes, smaller tubes, and applications requiring horizontal separation may get substantially more flexibility from the BIOFlex HS.

BIOFlex HS vs. F20-12x50 LEX

The F20-12x50 LEX reaches more than 51,000 x g in the LYNX 6000, making it a much higher-force rotor than the BIOFlex HS.

The tradeoff is sample geometry and versatility.

The F20-12x50 LEX is optimized for:

• Rapid high-RCF pelleting

• 50 mL samples

• Subcellular separations

• High-speed clarification

The BIOFlex HS is optimized for:

• Swinging-bucket centrifugation

• Broad tube compatibility

• Horizontal separation

• Large bottles

• Cell washing

• Multi-format laboratory use

A well-equipped LYNX system may therefore include both rotor types.

BIOFlex HS vs. Conventional General-Purpose Swinging-Bucket Rotors

Many general-purpose benchtop and floor centrifuges use swinging-bucket rotors, but maximum RCF is often well below 10,000 x g.

The BIOFlex HS reaches 10,025 x g while maintaining 1.6 L nominal capacity.

This allows laboratories to perform higher-force separations while retaining the flexibility and horizontal sample orientation associated with swinging buckets.

It can therefore fill the gap between:

general-purpose swinging-bucket centrifugation

and

superspeed fixed-angle centrifugation

within the same LYNX platform.

Rotor & Bucket Inspection by American Instrument Exchange

Swinging-bucket rotors require inspection of both the central rotor structure and the individual buckets.

American Instrument Exchange evaluates pre-owned rotors for overall mechanical condition before offering them for laboratory use.

Inspection of a BIOFlex HS may include:

• Rotor cross condition

• Bucket condition

• Bucket pivots

• Bucket weight distribution

• Rotor drive interface

• Lid condition

• ClickSeal components

• Gaskets and O-rings

• Corrosion

• Mechanical wear

• Identification markings

• Visible damage

Swinging-bucket rotors supplied with buckets are checked for proper weight distribution, an important consideration because mismatched or incorrectly loaded buckets can produce significant imbalance at operating speed.

When possible, American Instrument Exchange also installs the rotor in a compatible centrifuge and operates it to verify proper rotation and bucket movement.

Refurbished Centrifuge Rotors from American Instrument Exchange

American Instrument Exchange offers inspected used and refurbished centrifuge rotors for laboratories looking to expand the capabilities of existing centrifuges without the expense of purchasing new accessories.

The Thermo Scientific BIOFlex HS is particularly useful for laboratories already operating a Sorvall LYNX 4000 or LYNX 6000 and needing a versatile high-speed swinging-bucket rotor.

American Instrument Exchange also stocks fixed-angle Fiberlite rotors, other swinging-bucket rotors, ultracentrifuge rotors, refrigerated centrifuges, superspeed centrifuges, and related laboratory equipment from Thermo Scientific, Sorvall, Beckman Coulter, Eppendorf, and other major manufacturers.

Shipping & Rotor Care

The BIOFlex HS rotor and buckets should be carefully packaged during transport to protect the rotor cross, bucket pivots, aluminum buckets, ClickSeal lids, gaskets, and drive interface.

Upon delivery, laboratory personnel should inspect all components before placing the rotor into service.

Particular attention should be paid to:

• Bucket pivots

• Bucket seating

• Bucket matching

• Lid seals

• O-rings

• Drive interface

• Signs of corrosion

• Mechanical damage

Only manufacturer-compatible cleaning and decontamination procedures should be used.

Lubrication of appropriate metal contact points should also follow Thermo Scientific maintenance instructions.

Related Laboratory Equipment

Laboratories using the BIOFlex HS frequently also require Sorvall LYNX centrifuges, fixed-angle Fiberlite rotors, 400 mL Bio-Bottles, 50 mL tube adapters, ClickSeal lids, refrigerated benchtop centrifuges, biosafety cabinets, ultra-low freezers, laboratory refrigerators, incubators, shakers, and other sample-processing equipment.

American Instrument Exchange offers refurbished Thermo Scientific Sorvall LYNX 4000 and LYNX 6000 centrifuges, along with compatible centrifuge rotors and accessories for biotechnology, pharmaceutical, academic, clinical research, microbiology, and process-development laboratories.

Thermo Scientific BIOFlex HS Frequently Asked Questions

What type of rotor is the Thermo BIOFlex HS?

The BIOFlex HS is a high-speed swinging-bucket rotor designed for compatible Thermo Scientific Sorvall LYNX centrifuges.

What is the capacity of the BIOFlex HS?

The rotor accommodates four 400 mL bottles, providing a total nominal capacity of 1.6 liters per run.

What is the maximum speed of the BIOFlex HS?

Maximum rotor speed is 7,000 rpm.

What is the maximum RCF?

The BIOFlex HS produces a maximum relative centrifugal force of 10,025 x g.

Is the BIOFlex HS compatible with both the LYNX 4000 and LYNX 6000?

Yes. The rotor is compatible with both centrifuge models and reaches 7,000 rpm / 10,025 x g in either platform.

What is the catalog number for the BIOFlex HS?

Thermo Scientific lists the complete BIOFlex HS rotor package under catalog number 75003002.

What is included in the standard Thermo BIOFlex HS package?

The manufacturer configuration includes the BIOFlex HS rotor with four buckets, four 400 mL polypropylene wide-mouth Bio-Bottles, anti-corrosive oil, lubricant for metal parts, and an instruction manual.

Included components on an individual pre-owned rotor should be confirmed with American Instrument Exchange prior to purchase.

Are aerosol-tight lids available?

Yes. Thermo Scientific offers ClickSeal biocontainment lids for the BIOFlex HS buckets. The American Instrument Exchange unit may include aerosol-tight lids as specified in the individual listing.

Is the BIOFlex HS biocontainment certified?

Yes. Thermo Scientific lists the BIOFlex HS rotor system with biocontainment certification when the appropriate sealed components are used.

What is the advantage of a swinging-bucket rotor?

Swinging buckets move into a horizontal position during centrifugation, making them ideal for applications requiring horizontal separation layers, density gradients, cell washing, biological fluid processing, and flexible tube formats.

How does a swinging-bucket rotor differ from a fixed-angle rotor?

A fixed-angle rotor holds the tubes at a constant angle and is generally optimized for rapid pelleting.

A swinging-bucket rotor allows the tubes to become horizontal during operation and generally provides more favorable geometry for layered separations and many multi-format applications.

Can the BIOFlex HS process 50 mL conical tubes?

Yes. Compatible 50 mL conical tubes can be processed using the appropriate Thermo Scientific adapters and bucket configuration.

Can smaller tubes be used?

Yes. The BIOFlex HS supports a broad selection of tube formats when appropriate manufacturer-approved adapters are installed.

Can I use any adapter that physically fits the bucket?

No. Only appropriate rotor-compatible adapters should be used. The adapter, bucket, tube, and sample combination must remain within the manufacturer's speed, RCF, and loading specifications.

Does every tube used in the BIOFlex HS withstand 10,025 x g?

No. The rotor's maximum RCF does not mean every compatible tube can safely operate at that force.

The lowest rated component in the rotor, bucket, adapter, tube, closure, and sample system determines the maximum operating limit.

How much does the BIOFlex HS weigh?

The stainless steel rotor cross weighs approximately 9.6 lb. / 4.36 kg.

With the four aluminum buckets installed, the assembly weighs approximately 16.8 lb. / 7.64 kg.

What is the maximum load per bucket?

Thermo Scientific specifies a maximum load of 600 g per bucket.

Do BIOFlex HS buckets need to be balanced?

Yes. Correct rotor balancing is essential. Opposing buckets and their complete contents should be properly balanced according to Thermo Scientific instructions before centrifugation.

Does the BIOFlex HS use Auto-Lock?

Yes. The rotor supports Thermo Scientific Auto-Lock tool-free rotor exchange in compatible Sorvall LYNX centrifuges.

Is the BIOFlex HS a good rotor for cell harvesting?

Yes. Its 1.6-liter capacity, swinging-bucket geometry, and maximum RCF of more than 10,000 x g make it useful for many cell-harvesting and biological sample-processing applications.

When should I choose the BIOFlex HS instead of the F12-6x500 LEX?

Choose the BIOFlex HS when swinging-bucket geometry, broad tube compatibility, horizontal separations, or sealed individual buckets are priorities.

Choose the F12-6x500 LEX when maximum volume and stronger fixed-angle pelleting performance are more important.

What warranty does American Instrument Exchange provide?

This pre-owned Thermo Scientific BIOFlex HS rotor includes a 90-day warranty from American Instrument Exchange.

 Click Here to see the Thermo BIOFlex HS rotor on the American Instrument Exchange YouTube channel.