Leica RM2255 Fully Automated Rotary Microtome
The Leica RM2255 is a fully automated rotary microtome designed for precise sectioning of paraffin-embedded tissue samples in histology labs. It features smooth manual or motorized operation with adjustable blade angles for consistent thin sections down to 1 micron. Classified under HTS 9027.90.2000 as a microtome for physical analysis in pathological examination.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as replacement parts like specimen clamps or blade holders
Microtome parts and accessories fall under separate subheading 9027.90.4050 per Chapter 90 note 2(a).
If for industrial non-medical mixing or cutting machines
Excludes medical/histology use; Chapter 90 note 1(g) directs lab analysis instruments here, not Chapter 84 machinery.
If classified as surgical cutting instruments
Microtomes are for lab sample preparation, not direct surgical use under heading 9018.
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Import Tips & Compliance
• Obtain FDA establishment registration as microtomes are Class I medical devices requiring 510(k) exemption confirmation
• Include detailed technical specs and user manuals to verify classification as laboratory microtome, not surgical instrument
• Avoid misclassification as general lab machinery under 8479 by providing evidence of tissue sectioning purpose
Related Products under HTS 9027.90.20.00
Thermo Scientific HM 355S Automated Microtome
The HM 355S is a high-precision automated microtome for routine and research histology, capable of sectioning at 0.5-60 microns with cryogenic capabilities for frozen specimens. It includes ergonomic design and disposable blade compatibility for pathology workflows. Falls under HTS 9027.90.2000 as a dedicated microtome for physical tissue analysis.
Microm HM 340E Rotary Microtome
The HM 340E is a manual rotary microtome for precise paraffin sectioning in research and clinical histology, with 50-60mm vertical stroke and 1-60 micron range. Its robust construction suits high-volume labs producing diagnostic slides. Properly classified in HTS 9027.90.2000 as a microtome for physical analysis.
Shandon Finesse 325 Retracting Rotary Microtome
The Finesse 325 features blade retraction technology to protect samples during upstroke, ideal for fragile neurological tissues in neuropathology. It offers 0.5 micron precision for research-grade sections. HTS 9027.90.2000 classification reflects its role in physical tissue analysis.
Boulder Ultramicrotome for Electron Microscopy
Designed for ultrathin sectioning (50nm-5μm) of specimens for transmission electron microscopy, the Boulder microtome uses diamond knives for nanoscale biological samples. Essential for cell biology and virology research. Classified under HTS 9027.90.2000 as specialized microtome for physical analysis.
Tissue-Tek TEC 6 Cryostat with Microtome
Next-generation cryostat microtome for intraoperative frozen sections, featuring -35°C capability and touch-screen operation for rapid cancer margin assessment. Produces artifact-free 3-10 micron sections. HTS 9027.90.2000 as microtome despite cryo function per principal use.
Leica Biosystems RM CoolClamp Microtome
The RM CoolClamp system maintains specimen temperature during paraffin sectioning, preventing compression artifacts in fatty tissues. Combines Peltier cooling with rotary microtomy for crisp 2-5 micron ribbons. Falls under HTS 9027.90.2000 as advanced microtome technology.