Beckman Allegra 6KR centrifuge

Brand : Beckman

Product Code : SKU 1265DD CENTRI

Price Match Policy

Shipping

All products ship from our 30,000 sq. ft. Haverhill, MA warehouse

Beckman Coulter Allegra 6KR Refrigerated Kneewell Centrifuge

The Beckman Coulter Allegra 6KR Refrigerated Kneewell Centrifuge is a refurbished general-purpose laboratory centrifuge designed for clinical laboratories, biotechnology companies, pharmaceutical laboratories, academic research institutions, blood banks, and quality control laboratories. The Allegra 6KR combines dependable refrigerated operation, flexible rotor compatibility, and high-capacity sample processing in a compact benchtop platform, making it an excellent choice for laboratories performing routine separations of blood products, cell cultures, and biological samples.

Laboratories evaluating refrigerated centrifuges often compare maximum speed, centrifugal force, refrigeration performance, sample capacity, rotor flexibility, and ease of operation when selecting a centrifuge system. The Beckman Allegra 6KR delivers speeds up to 8,000 RPM, maximum centrifugal forces up to 5,710 × g, and accommodates sample capacities up to 4 × 750 mL, depending on the installed rotor. Its Smart Balance™ technology, automatic imbalance detection, and CFC-free refrigeration system make it a dependable platform for routine laboratory workflows.

At American Instrument Exchange, our technicians inspect and test each centrifuge to verify proper refrigeration performance, motor operation, braking systems, lid lock functionality, rotor operation, and controller performance prior to shipment. American Instrument Exchange offers used and refurbished laboratory centrifuges for sale, including refrigerated centrifuges, floor model centrifuges, benchtop centrifuges, microcentrifuges, and large-capacity bioprocessing centrifuges from leading manufacturers including Beckman Coulter, Thermo Scientific, Eppendorf, and more.

Features of the Beckman Coulter Allegra 6KR

Maximum speed: 8,000 RPM
Maximum centrifugal force: 5,710 × g
Maximum sample capacity: 4 × 750 mL
Refrigerated operation from -10°C to +40°C
Smart Balance technology minimizes the need for precise balancing
Automatic rotor imbalance detection and door interlock safety systems
Compatible with fixed-angle and swinging bucket rotors
Compact kneewell design with direct-drive motor
Ideal for clinical laboratories, biotechnology, blood banking, and cell culture applications
90-day warranty included from American Instrument Exchange
Refurbished and tested by American Instrument Exchange

The Beckman Allegra 6KR provides reliable refrigerated centrifugation for laboratories requiring a versatile, high-capacity benchtop centrifuge capable of handling a broad range of routine applications.

Beckman Coulter Allegra 6KR Overview

The Beckman Allegra 6KR is engineered for laboratories that routinely process blood tubes, conical tubes, bottles, cell culture samples, and other biological specimens requiring refrigerated centrifugation. Its compact footprint allows it to fit comfortably into most laboratory environments while offering significantly greater capacity than many traditional benchtop centrifuges.

The Allegra 6KR supports multiple Beckman rotor options, allowing laboratories to configure the instrument for clinical testing, biotechnology research, pharmaceutical development, environmental analysis, and general laboratory sample preparation.

If you're comparing this instrument with other models, browse our complete collection of used and refurbished laboratory centrifuges from American Instrument Exchange.

Beckman Coulter Allegra 6KR Common Applications and Refrigerated vs. Non-Refrigerated Operation

The Beckman Allegra 6KR is commonly used for blood component separation, plasma preparation, mammalian cell harvesting, bacterial culture processing, biotechnology research, pharmaceutical sample preparation, environmental testing, food science laboratories, and routine clinical workflows.

Its refrigerated chamber maintains stable sample temperatures throughout centrifugation, protecting proteins, enzymes, blood products, cultured cells, and other temperature-sensitive biological materials. Compared with non-refrigerated benchtop centrifuges, the Allegra 6KR provides improved sample integrity while offering the flexibility to process a wide variety of sample containers.

Beckman Coulter Allegra 6KR Rotor Compatibility and Included Accessories

Rotor flexibility is one of the primary advantages of the Beckman Allegra 6KR.

Compatible rotor families include:

Fixed-angle rotors
GH-3.8 swinging bucket rotor
GH-4.7 swinging bucket rotor
GA-6 fixed-angle rotor
PTS-2000 platelet rotor

Compatible applications include:

Blood collection tubes
Conical tubes
Cell culture bottles
Microplates
Blood bags
Clinical specimen processing
Cell harvesting
General laboratory separations

The Allegra 6KR platform provides laboratories with the flexibility to configure the centrifuge for both routine clinical testing and research applications.

Customers should verify included rotors prior to purchase, as centrifuge configurations can vary between systems.

Beckman Coulter Allegra 6KR Specifications

Specification	Details
Manufacturer	Beckman Coulter
Model	Allegra 6KR
Condition	Refurbished
Centrifuge Type	Refrigerated Benchtop Centrifuge
Maximum Speed	8,000 RPM
Maximum RCF	5,710 × g
Maximum Capacity	4 × 750 mL
Temperature Range	-10°C to +40°C
Refrigeration	CFC-Free
Electrical Requirements	120V, 60 Hz, 12A
Included Rotor	Verify with American Instrument Exchange

Specifications compiled from Beckman Coulter manufacturer literature, technical documentation, and American Instrument Exchange product information.

Power Requirements and Shipping Considerations

The Beckman Allegra 6KR is a refrigerated kneewell centrifuge that ships by freight. Laboratories should verify available space, electrical requirements, ventilation clearance, and final installation location before delivery.

American Instrument Exchange can assist with shipping coordination and installation planning to help ensure the centrifuge arrives safely and is ready for operation.

Refurbished Centrifuges from American Instrument Exchange

American Instrument Exchange specializes in professionally refurbished laboratory centrifuges including benchtop centrifuges, refrigerated centrifuges, floor model centrifuges, blood banking centrifuges, microcentrifuges, vacuum concentrators, and bioprocessing centrifuges.

Our technicians inspect and test every centrifuge for:

Refrigeration performance
Rotor operation
Brake functionality
Controller operation
Lid lock safety systems
General operational reliability

If the centrifuge is sold with a rotor, we also test the rotor and centrifuge together to verify compatibility and operational performance.

Many laboratories purchasing a centrifuge are also outfitting an entire research facility. American Instrument Exchange also offers professionally refurbished laboratory freezers and ultra-low freezers, laboratory incubators, and biosafety cabinets, allowing customers to source multiple pieces of laboratory equipment from a single trusted supplier.

Beckman Coulter Allegra 6KR Service and Support

American Instrument Exchange and AIE Laboratory Services provide diagnostics, preventative maintenance, refrigeration service, depot repair, and field service for Beckman centrifuges and many other laboratory instruments.

In addition to centrifuge repair, our service team supports ultra-low freezer repair, laboratory refrigerator service, biosafety cabinet certification, incubator repair, and preventative maintenance programs to help laboratories maximize equipment uptime.

Beckman Coulter Allegra 6KR Refrigerated Benchtop Centrifuge Frequently Asked Questions

What is the difference between the Allegra 6KR and the Allegra 6R?

The Allegra 6KR is the kneewell-style refrigerated version of the Allegra 6 platform, providing an ergonomic loading height while maintaining the same dependable refrigerated performance and rotor flexibility.

What types of samples can the Allegra 6KR process?

The Allegra 6KR is commonly used for blood tubes, plasma, serum, conical tubes, cell culture bottles, microplates, blood bags, and other routine laboratory sample formats when equipped with the appropriate rotor.

Does this centrifuge include a rotor?

Rotor availability varies by inventory. Please contact American Instrument Exchange to confirm which rotor, if any, is included with this specific centrifuge.

Is the Allegra 6KR suitable for clinical laboratories?

Yes. Its refrigerated operation, large sample capacity, and compatibility with blood collection tubes and blood bags make it well suited for clinical and hospital laboratory applications.

Can the Allegra 6KR be used for cell culture work?

Yes. The Allegra 6KR is frequently used to harvest mammalian and bacterial cell cultures while maintaining low sample temperatures to preserve viability and protein integrity.

Why choose the Allegra 6KR over a floor model centrifuge?

The Allegra 6KR provides many of the advantages of a larger refrigerated centrifuge while requiring significantly less laboratory floor space, making it an excellent choice for laboratories with limited room.

Is a refurbished Beckman Allegra 6KR a good value?

Yes. A professionally refurbished Allegra 6KR provides dependable refrigerated centrifugation, excellent rotor flexibility, and substantial cost savings compared with purchasing a new laboratory centrifuge.

Can American Instrument Exchange service Beckman Allegra centrifuges?

Yes. AIE Laboratory Services provides diagnostics, preventative maintenance, refrigeration repair, and general service for many Beckman Coulter centrifuge models, including the Allegra series.

Testing Procedures for Used and Refurbished Laboratory Centrifuges

Ensure Quality, Accuracy, and Compliance Before Deployment

Used and refurbished laboratory centrifuges from American Instrument Exchange undergo testing procedures to ensure they meet the performance, safety, and compliance standards required in modern laboratories.

Why Testing Used Laboratory Centrifuges Is Essential

Before a centrifuge is reintroduced into a lab environment, it must be tested for:

Mechanical integrity
Rotor balance and speed accuracy
Safety system functionality
Electrical compliance

Proper testing helps extend equipment lifespan, reduce downtime, and ensure safety in high-stakes lab environments such as clinical diagnostics, biotechnology, and research applications.

Our structured testing protocol for used and refurbished centrifuges ensures equipment safety, accuracy, and longevity.

Key Testing Procedures for Refurbished and Used Centrifuges

1. Initial Visual Inspection

Check for signs of wear, corrosion, or damage to housing, lid, and control panels
Inspect power cords, plugs, and connectors for fraying or exposed wiring
Confirm that the rotor and accessories are compatible and undamaged

2. Functional Testing

Power up the centrifuge and confirm successful boot-up of digital or analog displays
Test lid lock and emergency stop mechanisms
Run initial cycles at various speeds to check for abnormal noise or vibration

3. Rotor and Speed Verification

Test all programmable speed settings to confirm consistent acceleration and deceleration
Monitor temperature, vibration, and RPM consistency throughout the cycle
Balance testing ensures smooth operation and prevents wear on internal components

4. Electrical Safety and Grounding Tests

Verify that all electrical components are properly grounded and shielded

5. Temperature Control (if applicable)

For refrigerated centrifuges, test cooling function to ensure temperature stability within set ranges
Check refrigerant levels and inspect for compressor noise or failure

6. Final Quality Assurance Checklist

Conduct a full run-through using the user interface
Document all test results

Repair and Refurbishment Protocol for Used Laboratory Centrifuges

Certified Quality from American Instrument Exchange

At American Instrument Exchange, we follow a meticulous repair and refurbishment protocol to ensure that every used laboratory centrifuge we sell. We strive for reliable performance and long-term durability—providing labs with exceptional value on high-quality pre-owned centrifuges.

Why Choose a Refurbished Centrifuge from American Instrument Exchange?

Fully tested
Backed by warranty and performance guarantee
Cost-effective alternative to new lab equipment
Environmentally responsible through equipment reuse
Supported by expert technicians with decades of experience

Step-by-Step Refurbishment Protocol

Every used centrifuge at American Instrument Exchange goes through the following comprehensive repair and refurbishment process:

1. Initial Intake & Inspection

Our technicians perform a complete visual and mechanical inspection
Evaluation of hinges, seals, gaskets, and electrical components
Any physical damage, missing parts, or wear is documented for repair

2. Cleaning and decontamination

Full internal and external cleaning using non-abrasive, disinfectant-safe products
Biological or chemical residue is decontaminated/cleaned

3. Mechanical & Electrical Repairs

Damaged or worn parts (e.g., drive motors, lid latches, rotor buckets) are replaced or repaired
Electrical components, sensors, and fuses are tested and replaced as needed
Wiring is inspected for integrity and safety per industry standards

4. Rotor & Accessory Evaluation

All rotors, buckets, and adapters are inspected for cracks, corrosion, and balance
Non-conforming components are replaced with OEM or equivalent alternatives

5. Performance Testing

Rotor speed (RPM), acceleration, and deceleration are verified
Refrigerated centrifuges undergo temperature stability testing across set ranges

6. Safety System Verification

Lid lock and interlock systems are tested for proper function
Emergency stop and imbalance detection systems are verified
Electrical safety and grounding tests are conducted

Trust the Experts at American Instrument Exchange

With over 50 years of experience in the industry, American Instrument Exchange is a trusted name for refurbished lab equipment. Our centrifuge refurbishment protocol reflects our commitment to quality, safety, and customer satisfaction.

Warranty Information

All used equipment sold by American Instrument Exchange is refurbished/reconditioned, tested to meet specifications, cleaned, and comes with a 90-day warranty from the date of shipment unless otherwise specified. New products include a warranty from the manufacturer. Your warranty is only valid if you have paid your invoice. If your invoice is over 30 days old, warranty work will not be performed until your invoice is paid in full. American Instrument Exchange is not liable for any special or consequential damages that result from the use of, or the inability to use, the materials on this site or the performance of the products,

Exceptions include international sales and items that are agreed to be sold with a lesser warranty or items that are agreed to be sold “as is.”

Should there be visible shipping damage to packaging or concealed shipping damage to item(s) supplied, buyer must communicate such damage to the delivering entity or carrier upon receipt first and to American Instrument the same day item is accepted / signed for. Failure to do so voids warranty. Customer decision to involve / procure third party or OEM service other than American Instrument or AIE assigned vendors to resolve in-warranty instrument failure or defect without first placing a service call to American Instrument voids warranty.

Return & Cancellation Policy

American Instrument Exchange will authorize the return of and issue a full refund for any equipment that is not working as represented and could not be replaced or repaired to the customer’s satisfaction by AIE or a representative of AIE during the warranty period. Returns without prior authorization and an RMA number will not be accepted.

Customers are responsible for proper packaging of the equipment and all included accessories. American Instrument will pay for insurance and shipping costs. Non-inventory items bought specifically to fill customer orders may possibly be returned, but on a case by case basis.

Customers who cancel orders after refurbishing has begun or after delivery where there are no equipment performance issues may be subject to a Restocking/Cancellation Fee of 20% or more and responsible for shipping costs for both the delivery and return.

Ongoing and Extended Support Options

American Instrument Exchange is able to provide additional repair and support services outside the warranty terms for most products that sell.

For biosafety cabinets, clean benches, chemical fume hoods, and other clean air products our team at AIE Laboratory Services can provide certifications, repairs, decontaminations, and other services for customers throughout New England, and guidance and limited technical assistance for any customers in the US and Canada for new or refurbished biosafety cabinets purchased from American Instrument Exchange.

For all other products, the repair service team at American Instrument Exchange can provide both field and depot repair evaluations. We can easily schedule and coordinate the pick-up and transportation of your malfunctioning equipment. By offering hourly rates lower than most OEM service providers and eliminating travel time for technicians, we help reduce repair costs. Furthermore, our lab depot repair service minimizes or eliminates scheduling delays. Our experienced service technicians are qualified to restore your equipment to factory specifications.

Please contact our team at info@americaninstrument.com for more details.

FAQ

Does the equipment come with a warranty?

Yes, all equipment from American Instrument Exchange comes with a warranty.
Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.

How do you test and recondition the equipment?

Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality.
We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.

How do products ship from American Instrument Exchange?

We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.

Return and order cancellation policy

American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.

Are discounts available for educational or non-profit institutions, or for bulk purchases?

Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.

How does your price matching policy work?

We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.

Can I see the equipment in person before committing to a purchase?

Customers are welcome to make an appointment to view equipment in our warehouse. Given our workload we may not be able to test or clean the equipment prior to your arrival if you have not committed to an order.

1023 Western Avenue is a working warehouse, not a showroom, and customers should dress appropriately and wear closed toe shoes.

Can I ship products that I purchased elsewhere to American Instrument for repair?

Yes – please see our repair services page for more information.

Sku 1265dd centri Open