An essential process within the analysis of tissue and cell samples, staining allows specialists to visualise specimens clearly under the microscope.
Automatic stainers are used within laboratories to automate the process of slide staining. In histology both linear stainers and carousel stainers are used, with each offering unique benefits. Workplace setting and required output play a large part in deciding which stainer to opt for, but which type is best for your laboratory?
With the linear stainer offering distinct advantages over the carousel alternative, we look at how each work best within differing environments.
Making a Mark: Choosing the Right Stainer
Keeping the Pace
Linear stainers maximise productivity and minimise downtime with efficient, high-quality processing in routine histology and cytology. Stainers such as the Slee Cromatec, with the highest throughput on the market, are specifically designed to meet this requirement with continuous basket loading up to 30 slides whilst maintaining the highest quality.
Carousel-based batch processing is slower in high-volume workflows but suits smaller labs with consistent sample volumes. The flex-programming option in the Slee MSM Carousel Stainer enables different staining protocols while using the same reagents.
Keeping the Bench Clear
Both linear and carousel stainers are offered as benchtop products. With space at a premium in labs, equipment footprint is a key consideration. The carousel stainer offers a more compact, space-saving design than the linear alternative but lacks the advance functionality the linear system offers. In addition to its small size, the carousel’s circular design minimises reagent evaporation, especially alcohol-based solutions, helping to keep reagent replenishment to a minimum.
Keeping it Going
The straightforward design of the linear stainer reduces the risk of damage and simplifies cleaning and general maintenance, unlike the carousel system whose rotational parts may require more frequent upkeep. We know that minimising downtime is paramount in a high-volume lab, at Solmedia we offer Maintenance Services to keep your lab running smoothly.
Keeping it Clean
By following a single-direction path, linear stainers reduce cross-contamination and ensure cleaner results for sequential or precise staining. The carousel’s circular motion can cause unintended slide interactions.
Keeping it Consistent
Linear stainers offer individually programmable time settings for consistent staining results. The carousel’s rotating mechanism may cause slight variability, but its limit on slides per batch helps prevent overload and ensures adequate staining.
Keeping it Unique
Flexibility and customisation provided by the linear stainer allows adjustments to staining duration, order and protocols to meet your specific needs. In contrast, the carousel’s simpler design offers fewer adjustable controls, making it more user-friendly and intuitive.
Keeping up with the Complex
For labs carrying out complex staining protocols, such as immunohistochemistry or special stains, linear stainers offer a more efficient approach thanks to their direct path and customisable features. Carousel stainers, while less suited for complex protocols, excel in consistency for routine staining (eg. Hematoxylin and Eosin (H&E)).
Keeping it Powered
An integrated UPS (uninterruptible power supply, with built-in batteries) keeps the staining system powered in environments with frequent power failures or in case of emergency power failures. This crucial feature is integrated in both the Cromatec and MSM models, ensuring the highest process reliability.
Staining Systems Key Features
Linear Stainers
Increased Throughput
Reduced Cross-Contamination
Optimised Staining Consistency
Flexibility and Customisation
Ease of Maintenance
Better Adaptability to Complex Protocols
Reduced Slide Damage Risk
Carousel Stainers
Compact Design
Ease of Use
Batch Processing
Cost-Effectiveness
Low Maintenance Requirements
Reliable for Routine Stains
Less Risk of Overloading Protocols
Closed-Loop Design Minimises Evaporation
Durability in Low-Volume Settings
Simple Cleaning and Maintenance
Linear stainers are optimal for high-volume labs with the long-term efficiency outweighing the upfront cost, while carousel stainers make a cost-effective, durable choice for laboratories with limited budgets or lower staining demands.
At Solmedia, our German-engineered, SLEE medical GmbH Staining Systems offer the choice between the Cromatec I Automatic Slide Stainer, MSM Carousel Slide Stainer and MAS Multi Protocol Stainer. All three provide advanced technology and flexibility to speed up processes and accommodate different staining protocols. With the addition of the Drying Station and Coverslipper MCS I, the MAS Multi Protocol Stainer opens up new dimensions in the field of automation, combining flexibility with speed whilst maintaining high-quality output.
WANT TO FIND OUT MORE ABOUT OUR STAINING SYSTEMS OR OUR FULL HISTOLOGY RANGE?