Thermo Scientific Centrifuge Swing Bucket Rotor TX-400 4 x 400 ml

Thermo Scientific TX-400 Swinging Bucket Rotor Cross (75003181) – 4 x 400 mL

The Thermo Scientific TX-400 75003181 is a high-performance, general-purpose swinging bucket rotor body designed for medium-speed sample separations. Engineered with a maximum capacity of 4 x 400 mL, this structural rotor cross serves as a highly versatile foundation for clinical research, molecular biology, and biochemistry laboratories. It features an advanced anti-friction coating to eliminate common high-velocity wear points, delivering reliable sedimentation metrics across a diverse range of tube formats.

Technical Performance & Design

• Slide-Coat Anti-Friction Finish: Fabricated with an integrated **Slide-Coat surface treatment** that eliminates the standard need for regular bucket joint lubrication. This specialized finish ensures consistent bucket swinging action while reducing grease contamination risks within the centrifuge chamber.
• Biocontainment Certified Safety: Rigorously tested and **biocontainment certified by CAMR™** (HPA, Porton Down, UK), protecting operators from hazardous aerosols when paired with compatible sealed containment lids.
• High-Throughput Sample Versatility: Capable of supporting **32 to 76 blood collection tubes** or up to **16 x 50 mL conical tubes** per run when utilized with the appropriate modular adapter series.
• 90-Degree Swing Geometry: The precise swing axis allows sample buckets to accelerate smoothly to a **full 90-degree horizontal angle**, ensuring horizontal pellet formation that minimizes sample disturbance during the decanting phase.

Product Specifications

• Part Number / SKU: 75003181
• Rotor Type: Swinging Bucket Cross (Rotor Body Only; buckets and lids sold separately)
• Maximum Capacity: 4 x 400 mL (1.6 Liters total volume)
• Maximum Speed: 5,000 RPM
• Maximum Relative Centrifugal Force (RCF): 4,696 x g
• Rotor Radius: 168 mm (16.8 cm)
• Max Tube Dimensions (Ø x L): 80 x 135 mm
• Centrifuge Series Compatibility: Thermo Scientific Sorvall ST16/ST16R, Megafuge 16/16R, SL16/16R, Multifuge X1 Pro, and Megafuge ST1 Plus series

Key Benefits & Applications

• Clinical Diagnostics & Blood Fractionation: Optimizes high-throughput processing of **serum, plasma, and whole blood collections** across major general-purpose laboratory lines.
• Cell Culture Harvesting: Provides the precise intermediate force ($4,696 \times g$) required for pelleting **mammalian cells, yeast cultures, and dense sub-cellular fractions** without causing structural lysis.
• Flexible Multi-User Adaptation: Allows varied laboratory teams to easily switch between **microliter vials, standard conical tubes, and 250 mL bottles** simply by hot-swapping the internal bucket adapters.
• Lower Operational Maintenance: The factory-bonded slide coating dramatically limits pivot pin friction, substantially extending the operational lifecycle of the core assembly.

Used, in great condition.

Thermo Scientific™, Sorvall™, and Megafuge™ are registered trademarks of Thermo Fisher Scientific Inc. The 75003181 catalog number represents the bare rotor cross. To complete the functional assembly, matching TX-400 Round Buckets (75003655) and ClickSeal Biocontainment Lids (75003656) must be procured separately.