Spinreact Spin 640 Plus or HumaStar 600: Which Clinical Chemistry Analyzer to Choose?

To decide between the HumaStar 600 and Spinreact Spin 640 Plus clinical chemistry analyzers, consider the specific requirements of your laboratory. It is important to take into account the following key aspects:

Company HUMAN Spinreact
Model HumaStar 600 Spin 640 Plus
Throughput max. tests/h 600 640
Reagent positions 48 80
Reagent cooling 9°C ± 2°C yes
Sample positions 95 90
Sample barcode reader Internal Internal
Cuvettes 160 re-usable 90 re-usable
Water consumption (l/h) < 5 20

*All information is correct as of December 2023



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When it comes to selecting a clinical chemistry analyzer, laboratories are faced with a multitude of factors to consider. These factors encompass various aspects such as throughput, reagent and sample handling capabilities, accuracy, and environmental impact. The Spinreact Spin 640 Plus and the HumaStar 600 are two viable options in this field, each with their own set of strengths. In order to assist you in making an informed decision that best suits your laboratory's needs, we will provide a detailed analysis of these systems.

Throughput Max. Tests/Hour

By reducing turnaround times and allowing for a maximum number of tests to be performed in an hour, these systems can increase patient satisfaction and meet testing volume needs efficiently. High-throughput systems can be considered essential for large laboratories that deal with a significant number of samples on a daily basis.

  • Spinreact Spin 640 Plus: This system is intended for high-volume laboratories that require rapid processing times to handle large batches of samples efficiently. It has a maximum throughput of 640 tests per hour.
  • HumaStar 600: It is worth noting that this product offers a high testing capacity of up to 600 tests per hour, which is slightly behind Spinreact. Nevertheless, it still provides ample capacity for most medium to high-volume laboratories. Additionally, the balance between speed, precision, and reliability is well-maintained.

Reagent Positions

The number of reagent positions in an analyzer determines the variety of tests that can be set up simultaneously and affects the lab's ability to offer a broad menu of tests without frequent reagent changes.

  • Spinreact Spin 640 Plus: With 80 reagent positions, a wide range of assays are always available, ideal for laboratories performing a variety of diagnostic tests.
  • HumaStar 600: With 48 reagent positions, it offers fewer options than the Spinreact, but focuses on efficient use of each position, suitable for laboratories that prioritize specific, high-demand tests.

Reagent Cooling

Reagent cooling preserves the stability of reagents, extending their shelf life and ensuring the accuracy of test results, which is especially important for temperature-sensitive assays.

  • Spinreact Spin 640 Plus: Features reagent cooling that maintains reagent integrity and provides consistent, reliable results over a wide temperature range.
  • HumaStar 600: Features a cooling function that maintains reagents at 9°C ± 2°C, ensuring optimal reagent conditions and reducing the risk of assay performance degradation due to temperature fluctuations.

Sample Positions

The number of sample positions on an analyzer affects how many patient samples can be loaded and processed at one time, directly impacting workflow efficiency and sample throughput.

  • Spinreact Spin 640 Plus: Offers 90 sample positions, allowing for greater sample loading capacity and minimizing the need for frequent reloading, which is beneficial for laboratories with continuous high-volume testing.
  • HumaStar 600: With 95 sample positions, it slightly outperforms the Spinreact, providing a bit more flexibility for batch processing and reducing potential bottlenecks at peak times.

Sample Barcode Reader

An internal sample barcode reader improves sample identification accuracy, reduces manual entry errors, and streamlines workflow, significantly improving laboratory efficiency and reliability..

  • Both the Spinreact Spin 640 Plus and the HumaStar 600 include internal sample barcode readers, ensuring accurate sample tracking and reducing the risk of error - a critical feature for maintaining high standards of diagnostic confidence.


The type and number of cuvettes an analyzer uses can affect the cost of consumables, the need for manual intervention, and the environmental impact of laboratory operations.

  • Spinreact Spin 640 Plus: Uses 90 reusable cuvettes, emphasizing a balance between operational efficiency and environmental sustainability.
  • HumaStar 600: With 160 reusable cuvettes, it offers greater capacity, reducing the frequency of cuvette changes and supporting a higher volume of testing without additional environmental impact.

Water Consumption (L/H)

Water consumption affects the laboratory's operating costs and environmental footprint. Lower water consumption is an indicator of a more efficient and environmentally friendly analyzer.

  • Spinreact Spin 640 Plus: Has a higher water consumption rate of 20 liters per hour, which may be a consideration for labs focused on sustainability and cost reduction.
  • HumaStar 600: Consumes less than 5 liters per hour, making it a more environmentally sustainable option with lower operating costs related to water usage.

In summary, when comparing the Spinreact Spin 640 Plus and the HumaStar 600 on these critical features, the choice between them should be guided by the specific needs of the laboratory, including test volume, test menu diversity, operational efficiency, and environmental sustainability considerations. Each system has its strengths, with the Spinreact Spin 640 Plus offering higher throughput and reagent positions for laboratories requiring a broad test menu, while the HumaStar 600 focuses on sustainability, efficient sample handling and minimizing operating costs.