ROUNDFIN RD-2265

Intraoperative pathology services rely on cryostat microtomes to deliver frozen section results within the timelines of active surgical procedures, where diagnosis directly informs the surgical approach and affects patient outcomes. The RD-2265 addresses this requirement through its 15-minute standby-to-operating freezing time, 24 freezing stations for simultaneous specimen staging, and six semiconductor quick-freezing stations for rapid thermal conditioning of fresh tissue. The UVC sterilisation function supports infection-control governance between cases, and multi-user mode allows pathologists and technicians to operate from personalised profiles without reconfiguring the instrument. Medigear.uk provides CE and ISO certification documentation to support procurement approval for intraoperative pathology equipment lists.

Routine diagnostic histopathology laboratories processing biopsy, dermatology, and neurological tissue sections benefit from the RD-2265's 0.1 μm resolution across a 0–999.9 μm range, covering ultra-thin fluorescence sections through to thick enzyme histochemistry sections within the same instrument. The auto-alignment function moves tissue automatically to the blade edge, reducing section setup time at the start of each block. The double-layer heated glass window maintains anti-fog performance throughout long sessions. Medigear.uk supplies technical documentation and pre-purchase consultation for procurement teams evaluating the RD-2265.

Research institutions, teaching hospitals, and specialist pathology facilities benefit from multi-user mode with individual parameter libraries and programmable timing for unattended pre-cooling and scheduled shutdown by weekday, hour, and minute. ROUNDFIN's OEM acceptance policy enables distributors to source branded variants through the Medigear—UK B2B procurement channel.

Individual buyers and private pathology services can acquire the RD-2265 directly through Medigear.uk. The one-year warranty and lifetime technical support from ROUNDFIN, combined with UVC sterilisation and the imported antibacterial knob, provide the hygiene and reliability assurance that smaller services require for sustained daily clinical use.

0.1μm Section Thickness Resolution Across 0–999.9μm

The RD-2265 provides section-thickness control in 0.1 μm increments across the full 0–999.9 μm range, delivering the resolution needed for both ultra-thin immunofluorescence sections and thick enzyme histochemistry preparations on the same instrument. This combination of range and resolution eliminates the need for separate sectioning instruments across different protocol categories. The same 0.1 μm increment applies to the trimming thickness and tissue retraction functions, ensuring equivalent precision across all three critical cutting parameters. Medigear.uk can provide protocol-specific guidance on section thickness for common tissue categories on request.

Five-Zone Independent Temperature Control to -45°C

Five independently controlled temperature zones — freezing chamber (-30°C to RT), blade holder (-45°C to RT), specimen head (-40°C to RT), freezing stage (-45°C to RT), and quick-freezing stage (-45°C to RT) — allow each thermal element to be set and maintained at the optimal temperature for the tissue type and section protocol in use, without any zone's setting affecting the others. The -45°C lower limit on the blade holder, stage, and quick-freezing stage is among the coldest achievable in this instrument class. It supports reliable sectioning of the most challenging lipid-rich and fatty tissue specimens.

24 Freezing Stations, including 6 Semiconductor Quick-Freezing Stations

Twenty-four freezing stations, including six semiconductor quick-freezing stations, enable simultaneous processing of multiple specimens at different stages of the tissue preparation workflow. The semiconductor quick-freezing stations provide faster initial cooling for fresh tissue received directly from the operating theatre, reducing the time from specimen receipt to the first usable section. This station directly supports high-throughput intraoperative pathology services, in which multiple concurrent surgical cases may each generate frozen-section requests within overlapping time windows.

UVCSterilisation with Manual and Timed Modes

The integrated UVC lamp provides cryostat cabinet sterilisation in both manual and timed-automated modes, with adjustable cycle duration. UVC sterilisation addresses the cross-contamination risk inherent in shared cryostat instruments that process specimens from different patients in rapid succession, particularly in intraoperative and high-volume routine settings. The ability to schedule timed sterilisation cycles means the cryostat cabinet can be sterilised automatically during periods of inactivity, without requiring operator presence. The safe, low-voltage UVC lamp design complies with the instrument's CE and ISO certification requirements.

Auto-Alignment Function for Reduced Section Setup Time

The auto-alignment function advances the tissue specimen to the blade edge when activated, eliminating the manual approach sequence that consumes time and requires additional strokes at the start of each new block. For high-throughput services that process many blocks per session, the cumulative time savings from auto-alignment across all blocks in a day are operationally significant. The function operates independently of block thickness, meaning it performs reliably whether the specimen is large or small, tall or flat. This feature is standard on all RD-2265 units supplied through Medigear.uk.

Multi-User Mode with Individual Parameter Libraries

Multi-user mode allows each operator to log in to a personalised interface that stores their own section thickness settings, temperature zone configurations, advanced speed preferences, and position memory values. When an operator logs in, their stored parameters load automatically, eliminating the need for manual reconfiguration between users in shared instrument environments. This function is particularly valuable in teaching hospital settings where trainees and senior staff use the same instrument and require different parameter profiles for their respective protocols.

Programmable Timing and Sleep Mode for Energy-Efficient Operation

The timing function supports weekly scheduling of cooling, cooling stop, and sleep mode by weekday, hour, and minute, enabling the cryostat to pre-cool automatically before session start, enter a power-saving sleep state during inactivity, and resume full operation at a scheduled time. This scheduled operation reduces both energy consumption and wear on the refrigeration system components, extending the instrument's operational life between maintenance intervals. The sleep and timing functions are particularly relevant for institutions with sustainability commitments or energy management requirements.

Dual-Purpose Knife Holder with 0°–15° Adjustable Blade Angle

The dual-purpose knife holder accommodates both wide and narrow blades with a blade angle adjustment range of 0°–15°, a blade lateral movement function for even blade wear distribution, a retractable knife guard covering the full blade edge for safe cabinet access, and a glass anti-curling plate to prevent sections from rolling on exit. The adjustable blade angle allows operators to optimise the cutting geometry for different tissue consistencies, and the dual-purpose design eliminates the need for separate knife-holder accessories across different blade formats.

Defrost Function with Independent Zone Control

The defrost function provides independent defrost capability for the freezer compartment, cooling stage, cooling knife, and cooling head, with manual initiation and timed scheduling available, and adjustable defrost duration for each zone. Independent zone defrost prevents the unnecessary warming of all thermal zones when only one requires defrosting, maintaining the working temperature of operational zones during the defrost cycle. Both manual and timed defrost modes are available, supporting reactive and preventive defrost management as part of the laboratory's routine instrument maintenance schedule.

Section Thickness Range: 0–999.9μm, 0.1μm Increment

Section thickness is adjustable across the full range of 0 to 999.9 μm in 0.1 μm steps, covering the complete spectrum from ultra-thin fluorescence sections to thick enzyme histochemistry preparations. The 0.1 μm increment provides the resolution needed for protocol-specific thickening optimisation across diverse tissue categories.

Trimming Thickness Range: 0–999.9μm, 0.1μm Increment (Disableable)

The trimming thickness range mirrors the section range of 0–999.9 μm with 0.1 μm resolution, and can be disabled entirely when trimming is not required for a specific block. This disabling function prevents unnecessary block face removal when advancing to a previously cut level or when working with small specimens.

Tissue Retraction Function: 0–999.9μm, 0.1μm Increment

The tissue retraction function withdraws the specimen by an independently adjustable distance of 0 to 999.9 μm in 0.1 μm increments between strokes, preventing the cut face from dragging across the blade on the return stroke and reducing the risk of section distortion or surface damage.

Horizontal Stroke: 30mm

The 30mm horizontal stroke range accommodates standard histological specimen sizes at the cutting plane. This stroke dimension defines the maximum specimen width that can be sectioned in a single pass without repositioning.

Vertical Stroke: 70mm

The 70mm vertical stroke provides the cutting travel required for standard and oversized frozen tissue blocks, supporting consistent section production across both small biopsy specimens and larger resection blocks.

Specimen Head Rotary Angle: X-axis 360°, Y-axis 12°

The specimen head rotates through 360° on the X-axis for full circumferential orientation adjustment, and 12° on the Y-axis for tilt correction. These rotation ranges allow the tissue face to be precisely aligned with the blade plane before sectioning.

Freezing Chamber Temperature: -30°C to RT, 1°C Graduation

The main freezing chamber is independently controlled from -30°C to room temperature with 1°C minimum graduation, maintaining the thermal environment of the cabinet interior at a stable set temperature throughout the sectioning session.

Freezing Blade Holder Temperature: -45°C to RT, 1°C Graduation

The blade holder ranges from -45°C to room temperature with 1 °C resolution, allowing the blade to be cooled to the optimal temperature for the tissue being sectioned independently of the chamber and stage temperatures.

Freezing Specimen Head Temperature: -40°C to RT, 1°C Graduation

The specimen head cools from -40°C to room temperature in 1°C increments, allowing the chuck and tissue block to be maintained at a temperature appropriate for the tissue type and desired section quality.

Freezing Stage Temperature: -45°C to RT, 1°C Graduation

The freezing stage ranges from -45°C to room temperature with 1°C graduations, providing a cold surface for specimen mounting and initial tissue cooling before transfer to the specimen head.

Quick-Freezing Stage Temperature: -45°C to RT, 1°C Graduation

The quick-freezing stage also reaches -45°C to room temperature with 1°C graduations, providing an additional rapid-cooling surface for freshly received intraoperative specimens requiring accelerated thermal conditioning.

24 Freezing Stations, including 6 Semiconductor Quick-Freezing Stations, support simultaneous staging of multiple specimens at different preparation stages. The semiconductor stations provide faster cooling for fresh tissue requiring rapid initial thermal conditioning.

Standby-to-Operating Freezing Time: 15 Minutes

The cryostat reaches full operating temperature from standby in 15 minutes, supporting rapid session initiation after scheduled pre-cooling or unexpected urgent specimen requests.

Section Advance Speed: 0–5mm/s, Stepless Regulation

Fast-forward and back-forward advance speeds are continuously variable from 0 to 5 mm/s with stepless regulation, allowing the operator to optimise approach speed for different block sizes and tissue types without the constraints of fixed-speed steps.

Handwheel 360° Arbitrary Point Locking

The handwheel locks at any position within its 360° rotation range, preventing unintended blade advancement during cabinet access, specimen handling, or blade changes.

Dual-Purpose Knife Holder: 0°–15° Blade Angle, Wide and Narrow Blades

The knife holder accommodates both wide and narrow blades, with a 0°–15° adjustable cutting angle, lateral blade movement for even wear distribution, a retractable knife guard, and a glass anti-curling plate. Medigear.uk can confirm compatible blade specifications for the RD-2265.

UVCSterilisation: Manual and Timed Modes

The integrated UVC lamp provides cabin sterilisation in manual or scheduled, timed modes, with an adjustable cycle duration. Usterilization supports cross-contamination risk management between patient specimens in shared cryostat environments.

The ROUNDFIN RD-2265 cryostat microtome provides a validated, full-featured frozen section platform suited to intraoperative pathology services, routine diagnostic histopathology laboratories, research institutions, and independently operated pathology services. Its 0.1μm section resolution across 0–999.9μm, five-zone independent temperature control to -45°C, 24 freezing stations, dual-purpose knife holder with 0°–15° blade angle, UVC sterilisation, multi-user mode, auto-alignment, and programmable weekly timing collectively address the operational requirements of institutional procurement teams, specialist distributors, and individual laboratory managers. CE and ISO certification confirm compliance with applicable medical device standards, and full documentation is available via Medigear.uk. Contact Medigear.uk for specifications, procurement assistance, or expert consultation.