Thermo Scientific Centrifuge Swing Bucket 4 x 50 ml Tube Adapter Lot of 4 Adapters

Thermo Scientific TX-400 Swinging Bucket Rotor Adapters (75003683) – Lot of 4

The [Thermo Scientific Set of 4 Adapters (75003683)] is a factory-matched set of premium centrifuge bucket adapters designed for high-throughput sample partitioning. Engineered to fit directly into the round buckets of the TX-400 swinging bucket rotor assembly, these adapters permit the safe, high-speed centrifugation of standard 50 mL conical tubes. This lot of four ensures uniform weight distribution and exact balancing across all four positions of a standard general-purpose benchtop centrifuge line.

Technical Performance & Design

• TX-400 Rotor Optimization: Engineered to lock precisely within Thermo Scientific **TX-400 swinging bucket rotor cross-platforms**, eliminating rotational rattling and tube misalignment under maximum RCF.
• High-Capacity Conical Support: Each adapter is bored to support **50 mL conical tubes** (such as Falcon™ or Nunc™ lines) with a strict individual cell capacity, yielding a total rotor capacity of **16 x 50 mL conical tubes** per run.
• Precision Cavity Geometry: Formed with an internal profile measuring **29.5 x 116 mm** to match the strict taper of 50 mL conical bottom walls, providing complete baseline support to prevent tube stress fractures at high velocities.
• Advanced Polymer Construction: Fabricated from high-density, chemical-resistant resin designed to withstand aggressive sanitizers, solvents, and continuous mechanical compression stress without micro-cracking.

Product Specifications

• Catalog / Part Number: 75003683 (75-003-683)
• Rotor Compatibility: Thermo Scientific TX-400 Swinging Bucket Rotor
• Centrifuge Compatibility: Thermo Scientific Sorvall ST16 / ST16R, Megafuge 16 / 16R, SL16 / 16R, and General Purpose Pro Series
• Tube Format: 50 mL Conical Tubes
• Cavity Dimensions (Ø x L): 29.5 x 116 mm
• Lot Quantity: Complete factory pack of 4 adapters

Key Benefits & Applications

• Cell Culture & Pellet Harvesting: Essential for heavy **mammalian or bacterial cell culture clarification** steps where cells must be uniformly pelleted into the tip of 50 mL conical vials.
• Symmetrical Weight Balancing: Supplying a matching **lot of 4 adapters** guarantees consistent tare weight benchmarks across opposite rotor positions, mitigating sample imbalance shutoffs.
• Autoclaved Cross-Sanitization: The high-performance resin allows for repetitive **steam autoclaving cycles (121°C)** to meet strict bio-safety guidelines in sensitive tissue culture workflows.
• Ergonomic Sample Loading: Smooth finger lips allow for swift removal from the bucket interior, making batch hand-offs from biological hoods to the centrifuge chamber rapid and seamless.

Thermo Scientific™ and Sorvall™ are registered trademarks of Thermo Fisher Scientific Inc. Always cross-check that total bucket weights (including adapters, tubes, and fluid media) match opposing positions within target mechanical weight tolerances before spinning.