Jiayuan JY-1508A Rotary Microtome
| Brand | Jiayuan |
|---|---|
| Origin | Beijing, China |
| Model | JY-1508A |
| Max Sample Section Size | 50×40 mm |
| Section Thickness Range | 1–30 µm |
| Minimum Thickness Increment | 1 µm |
| Sectioning Accuracy | ±5% |
| Dimensions | 400×350×350 mm |
| Compliance | CE-marked for laboratory use |
| Optional Accessories | Disposable blade holder |
Overview
The Jiayuan JY-1508A Rotary Microtome is a precision-engineered instrument designed for consistent, high-reproducibility sectioning of biological and embedded specimens in histology, pathology, and life science research laboratories. Operating on the fundamental principle of rotary motion—where the specimen advances linearly toward a stationary cutting edge during each rotation cycle—the JY-1508A delivers uniform sections across a broad thickness range (1–30 µm), supporting both paraffin-embedded soft tissues and moderately dense samples such as plant stems, fibrous matrices, and decalcified bone. Its rigid cast-alloy frame, low-backlash feed mechanism, and calibrated micrometer adjustment system ensure mechanical stability and long-term dimensional fidelity. Unlike cryostat-based microtomes, the JY-1508A is optimized for room-temperature or chilled-stage operation, making it suitable for routine paraffin processing workflows aligned with ASTM E2659 and ISO 13787 standards for histological specimen preparation.
Key Features
- Linear feed system with 1 µm minimum increment resolution, enabling precise control over section thickness for morphometric analysis and immunohistochemical staining protocols.
- Robust aluminum alloy base and reinforced specimen chuck assembly minimize vibration-induced artifacts during sectioning.
- Ergonomic handwheel with dual-position locking mechanism ensures operator safety and reproducible stroke positioning.
- Adjustable specimen orientation stage supports horizontal and vertical tilt (±8°) and full 360° rotation—critical for oblique sectioning of anisotropic tissues (e.g., muscle fibers, vascular grafts).
- Tool-free blade holder compatibility with standard steel knives and disposable blades (optional accessory), reducing cross-contamination risk in multi-user environments.
- Sealed internal mechanism design limits dust ingress and simplifies routine maintenance—no disassembly required for daily cleaning or lubrication.
Sample Compatibility & Compliance
The JY-1508A accommodates specimens embedded in paraffin, celloidin, or low-melting-point resins, with maximum sectional dimensions of 50 × 40 mm. It reliably sections soft tissues (liver, kidney, brain), semi-hard plant materials (woody stems, root nodules), and pre-treated hard tissues (decalcified bone, calcified cartilage). While not intended for ultra-hard unprocessed mineralized tissue (e.g., untreated cortical bone or dental enamel), its feed consistency meets requirements for GLP-compliant histopathology labs performing routine H&E and special stain preparation. The device complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and carries CE marking under the EU Machinery Directive 2006/42/EC. Documentation includes traceable calibration certificates for micrometer scale verification.
Software & Data Management
The JY-1508A is a manually operated mechanical microtome and does not incorporate digital controls or integrated software. All operational parameters—including thickness setting, specimen advance count, and orientation angles—are recorded manually in lab notebooks or LIMS-compatible log sheets. For laboratories requiring audit trails per FDA 21 CFR Part 11, users may pair the instrument with external digital logging systems (e.g., barcode-scanned section logs, time-stamped imaging metadata via connected slide scanners). Calibration records, maintenance logs, and operator training documentation are recommended to support ISO/IEC 17025 accreditation pathways.
Applications
- Routine histology in academic and clinical pathology labs preparing paraffin blocks for diagnostic evaluation.
- Plant morphology studies requiring serial sections of lignified stems or reproductive organs at sub-5 µm intervals.
- Preclinical toxicology studies involving standardized sectioning of rodent organ blocks for quantitative histopathology.
- Materials science applications involving resin-embedded polymer composites or fiber-reinforced biomaterials.
- Forensic anthropology workflows involving sectioning of decalcified skeletal elements for microstructural analysis.
- Quality assurance in biobanking facilities where consistent section thickness is critical for downstream RNA integrity assessment.
FAQ
What embedding media are compatible with the JY-1508A?
Paraffin wax (56–60 °C melting point), celloidin, and low-viscosity acrylic resins (e.g., LR White) are fully supported. High-melting-point waxes (>62 °C) or epoxy resins require pre-cooling stages to avoid knife dulling.
Can the JY-1508A cut frozen sections?
No—it lacks a refrigerated stage or cryo-chamber. For frozen sectioning, pairing with a dedicated cryostat (e.g., Leica CM1950) is recommended.
Is the 1 µm increment mechanically verified across the full thickness range?
Yes—micrometer calibration is factory-verified at 1, 5, 10, and 30 µm points using optical interferometry; users should perform quarterly verification with certified gauge blocks.
Does the optional disposable blade holder support all common blade brands?
It accepts Feather S35, Leica 818, and Sakura Super 35 blades via standardized 25 mm width mounting; compatibility with proprietary tapered blades is not guaranteed.
What maintenance schedule is recommended for optimal performance?
Daily: Wipe stage and knife edge with lint-free cloth and 70% ethanol. Weekly: Inspect feed screw lubrication and chuck alignment. Annually: Full recalibration by authorized service technician.
