ROUNDFIN RD-501

Hospital histopathology departments rely on consistent, high-volume tissue processing to keep diagnostic reporting on schedule. The RD-501 carries routine biopsy and resection workloads through a validated twelve-step cycle, and its vacuum-accelerated infiltration helps clear daily caseloads without extending into overnight runs. For trusts standardising their laboratory fleet, Medigear.uk supplies the unit with the documentation procurement teams require for onboarding.

Cancer diagnostic services depend on faithful morphology because infiltration quality directly affects section quality and downstream interpretation. The cyclical negative pressure of the RD-501 deeply rives reagents through dense and fatty specimens, supporting reproducible blocks facies where margins and grading carry weight. When an urgent specimen must be turned around quickly, the three-hour small-specimen capability shortens the path to a reportable slide. Laboratories scaling oncology capacity can plan additional units through Medigear.uk.

Academic and research laboratories process a far wider range of material than a routine diagnostic bench, from animal models to plant tissue. The ten programmable protocols and adjustable per-station timing let investigators tailor schedules to unusual tissue types and experimental endpoints. Optional glass reagent cups allow direct observation during method development. Medigear.uk supports research groups specifying configurations for grant-funded equipment purchases.

Veterinary, food-testing, and private diagnostic laboratories often need one dependable processor that handles a mixed daily workload. The RD-501 covers this brief with its dual-capacity options, manual or automatic operation, and delayed-start scheduling that fits comfortably with smaller teams and irregular sample flow. For independent buyers and distributors equipping such sites, Medigear.uk offers single-unit and volume supply with OEM configuration options.

Three-Hour Small-Specimen Turnaround Through Vacuum Infiltration

The negative-pressure system processes small specimens in as little as three hours, compressing a stage that traditionally runs far longer. Faster cycles free bench capacity and bring biopsy results forward, which matters most where diagnostic timeliness is measured. For high-throughput laboratories, that pace translates directly into greater daily case capacity.

Reproducible Blocks for Defensible Diagnostic Quality

Even reagent penetration produces consistent, well-infiltrated blocks that section cleanly, supporting reliable morphology across a batch. Reproducibility underpins clinical governance because variation in processing is a known source of diagnostic delay and re-work. Laboratories tracking quality metrics gain a processor whose behaviour is stable from run to run. Medigear.uk can supply the technical detail quality leads needed for validation files.

Twelve Programmable Steps Across Ten Stored Protocols

Nine reagents and three paraffin stations support a complete processing schedule, while ten stored programs allow a laboratory to maintain distinct protocols for different specimen types. Staff recall the correct schedule rather than reconfiguring the instrument between runs. This flexibility suits both routine diagnostic panels and varied research material.

Built-In Fail-Safes That Protect Specimens and Staff

Dual limiters and an obstacle-detection sensor guard the drive mechanism and stop the carousel before a jam can damage a batch. At the same time, activated-carbon filtration reduces solvent vapour during vacuum cycles. Power-off protection resumes an interrupted run from memory, so a brief outage does not cost a tray of specimens. These protections reduce the operational risk associated with an unattended overnight cycle.

CE-Marked Supply With Procurement-Ready Documentation

The RD-501 carries CE marking, and evidence of conformity and electrical safety can be provided to support institutional onboarding. For NHS and trust buyers, having the documentation file available shortens tender and approval steps. Medigear.uk confirms the precise certification for a given requirement before purchase, removing guesswork from compliance checks.

Compact Carousel Footprint for Constrained Laboratories

The circular footprint and self-contained design let the unit sit on a sturdy bench or dedicated stand without dedicated plumbing. This simplifies siting in laboratories where floor and bench space are at a premium. Straightforward placement also keeps installation costs and disruption to a minimum.

Whole-Life Technical Support Behind Every Unit

Beyond the one-year warranty, the manufacturer provides whole-life technical support, including servicing guidance and access to spare parts for the instrument's working life. For a capital purchase, that long horizon protects the investment and reduces the risk of premature obsolescence. Medigear.uk serves as the single point of contact for service and consumables throughout the ownership period.

OEM and Volume Supply for Distributors

The platform supports OEM branding and configurable build options, which makes it suitable for distributors building a pathology equipment range. Single units and bulk orders can be fulfilled with specified capacities, cup materials, and voltage builds. This adaptability helps resellers match local tender specifications without sourcing a different product line.

Configurable Capacity for Individual Laboratory Buyers

Independent laboratories can specify the capacity, cup material, and basket count that match their actual daily workload rather than over-buying. Choosing between the 1.3-litre and 2.3-litre configurations keeps reagent consumption proportionate to throughput. Medigear.uk advises individual buyers on the configuration that balances cost and capacity for their setting.

Cyclical Vacuum: -60 kPa, With -70 kPa and -55 kPa Options

The reagent cylinder draws down to approximately -60 kPa, with -70 kPa and -55 kPa pressure options available. Negative pressure draws dehydrating and clearing reagents into tissue far faster than passive immersion does. This is the defining capability that separates the RD-501 from the standard RD-500.

Vacuum Cycling Every Five Minutes

Vacuum is applied in repeated cycles at roughly five-minute intervals throughout processing. Each evacuation refreshes reagent contact across the specimen surface, which improves penetration consistency. The result is shorter, more uniform infiltration throughout the basket.

Twelve Processing Stations: Nine Reagents, Three Paraffins in

The carousel carries twelve stations, nine for reagents and three for heated paraffin. This layout holds a complete dehydration, clearing, and infiltration sequence in a single uninterrupted run. Staff load a protocol once rather than swapping reagents mid-cycle.

Reagent Cup Capacity: 1.3 L Standard, 2.3 L Optional

Reagent cups are supplied at a 1.3-litre working volume, with a 2.3-litre option for higher-volume laboratories. The larger format raises basket capacity without changing the processing principle. Medigear.uk can quote either configuration against the expected daily throughput.

Anodised Aluminium Cups, With Optical Glass Option

Reagent cylinders are manufactured in anodised aluminium as standard, with Glassptical Glass available as an alternative. Glass allows direct visual monitoring of reagent and specimen condition during a run, while aluminium prioritises durability. Handled cylinders make reagent changes quick and controlled.

Paraffin Baths Thermostatically Held at 55–85 °C

Three paraffin stations hold a one-litre charge, extendable to 1.8 litres, under thermostatic control across a 55 to 85 degree Celsius range. Stable wax temperature ensures complete infiltration without overheating delicate tissue. Accurate control at this stage underpins clean sectioning later.

Basket Capacity: Up to 50 or 80 Cassettes

A single basket processes up to 50 cassettes at 1.3 litres, rising to 80 at 2.3 litres. This determines how many specimens a laboratory can clear in one cycle. A second basket is available where parallel capacity is needed.

Continuous Basket Agitation for Even Reagent Exchange

The sample basket agitates several times each minute throughout processing, keeping the reagent in constant motion around the cassettes. Active mixing prevents stagnant boundary layers and promotes thorough, even reactions. When combined with a vacuum, it delivers consistent results across the load.

Twelve-Step Schedule With Ten Stored Programs

Processing runs across a twelve-step schedule, and the controller stores up to ten independent programs. Each station accepts a dwell time of 0 to 10 hours, providing fine control over each reagent stage. Laboratories keep distinct protocols ready for different tissue types.

Per-Station Dwell Time Up to 2000 Minutes

Residence time at each station is programmable over a 0-2000-minute range. This wide window accommodates everything from rapid small-biopsy schedules to extended protocols for dense specimens. Precise timing control is central to reproducible processing.

Delayed-Start Scheduling Up to 30 Days

A delayed-start function allows a run to be programmed up to thirty days in advance. Laboratories can align processing with staffing patterns, weekends, or downstream embedding capacity. This keeps the instrument working productively around a team's actual schedule.

Automatic Cylinder Changing With Five-Second Drain

The carousel automatically transfers the basket between stations, pausing for 5 seconds at the top of each lift. This drain interval allows residual reagent to drip away before the basket moves, which minimises carryover between baths. Cleaner transitions protect both reagent integrity and the quality of results.

Dual Limiters: Software Plus Mechanical Stop

Two independent limiters, an internal software limit and an external mechanical stop, govern carousel travel. If one path fails, the other prevents the mechanism from overrunning and damaging components. This redundancy is a core safeguard for unattended operation.

Obstacle Detection With Activated-Carbon Filtration

An obstacle-detection sensor halts motion immediately if the carousel meets unmelted paraffin or a foreign object, preventing damage to specimens and the mechanism. An activated-carbon filtration stage captures solvent vapour released during vacuum cycles, which reduces operator exposure. Together, these features address both equipment protection and laboratory safety.

Power-Off Protection With Memory Resume

A power-off protection system stores the run position so processing resumes from the same point when power is restored. A brief mains interruption, therefore,e does not compromise an in-progress batch. For overnight cycles, this materially reduces the risk of specimen loss. Medigear.uk highlights this safeguard for laboratories without backup power.

300 W Operation at AC 220 V / 50 Hz, 110 V / 60 Hz Optional

The unit draws 300 watts and runs on AC 220 V / 50 Hz as standard, with a 110 V / 60 Hz build available on request. Modest power draw suits standard laboratory circuits without special provision. Net weight is 65-75 kilograms, depending on configuration.

The ROUNDFIN RD-501 Vacuum Tissue Processor combines vacuum-accelerated infiltration, a programmable twelve-step cycle, and built-in fail-safes in a compact carousel platform that earns its place throughout the histology workflow. From routine hospital histopathology and time-critical cancer diagnostics to academic research and veterinary, food-testing, or private diagnostic laboratories, it handles a broad span of specimen types with reproducible results. CE marking and whole-life technical support give procurement teams, distributors, and individual laboratory buyers a dependable, well-supported choice through Medigear.uk. Whether you are standardising a trust fleet, building a distribution range, or equipping a single bench, the RD-501 delivers consistent processing without compromise. Contact Medigear.uk for specifications, procurement assistance, or expert consultation.