Microtomes
Instruments and apparatus for physical or chemical analysis (for example, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes; parts and accessories thereof: > Microtomes; parts and accessories: > Microtomes
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Products classified under HTS 9027.90.20.00
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.
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.
Histology Vibrating Blade Microtome
Vibratome-style microtome uses high-frequency vibration with sapphire blades for fresh, unfixed brain slices in neuroscience research, producing 20-400 micron live tissue sections. No embedding required for physiological studies. HTS 9027.90.2000 classification for specialized tissue sectioning.
Precise Biomedical CryoJane Tape-Transfer Microtome
CryoJane system uses adhesive tape to capture frozen sections directly onto slides, eliminating wrinkles in breast cancer margin analysis. Compatible with TEC cryostats for room-temperature handling. Classified HTS 9027.90.2000 as microtome with specialized transfer technology.
Sakura Tissue-Tek TEC 5 Cryostat Microtome
The Tissue-Tek TEC 5 combines cryostat refrigeration with microtome sectioning for rapid frozen tissue diagnosis in surgical pathology. It maintains -20°C to -10°C temperatures while producing 5-50 micron sections. HTS 9027.90.2000 covers the microtome function despite refrigeration, as primary use is tissue sectioning.