Xiangyi TG12 Capillary Blood Centrifuge

Overview

The Xiangyi TG12 Capillary Blood Centrifuge is a precision-engineered benchtop centrifuge specifically optimized for hematological applications requiring rapid, reproducible separation of whole blood in standardized capillary tubes. Designed around the principles of sedimentation kinetics under controlled rotational acceleration, the TG12 delivers consistent relative centrifugal force (RCF) profiles essential for accurate hematocrit (HCT) determination per CLSI H15-A3 and ISO 15189-compliant laboratory workflows. Its fixed-angle rotor geometry ensures minimal sample disturbance during acceleration/deceleration phases, preserving cellular integrity and interface sharpness—critical for manual or automated hematocrit reading. The unit operates within the low-speed centrifugation range (≤12,000 rpm), balancing sufficient RCF generation with thermal stability and mechanical longevity typical of dedicated clinical hematology instrumentation.

Key Features

• Benchtop footprint (305 × 260 × 195 mm) enables integration into compact clinical labs, point-of-care stations, or mobile diagnostic units without compromising structural rigidity.
• Fixed-angle rotor accommodates exactly 12 standard 75 mm capillary tubes (e.g., Wintrobe or microhematocrit tubes), ensuring uniform radial positioning and balanced load distribution.
• Digital speed control with ±50 rpm accuracy across the full 1,000–12,000 rpm range; real-time RCF calculation displayed in ×g units based on rotor radius (112 mm effective).
• Brushless DC motor provides high torque at low speeds, silent operation (<55 dB(A)), and extended service life with no carbon brush maintenance required.
• Microprocessor-controlled acceleration/deceleration profiles minimize vibration and prevent capillary tube breakage or plasma layer disruption.
• Interlocked safety lid with automatic rotor brake engagement and imbalance detection compliant with IEC 61010-2-020 for laboratory centrifuge safety.

Sample Compatibility & Compliance

The TG12 is validated for use with heparinized, EDTA-anticoagulated, or citrated whole blood samples loaded into borosilicate or plastic capillary tubes (inner diameter: 1.0–1.2 mm). It supports both manual hematocrit measurement via calibrated reader scales and automated imaging systems interfaced through standardized tube geometry. The instrument meets essential performance criteria outlined in CLSI EP05-A3 (precision evaluation), ISO 8655-7 (volumetric instruments), and EU Directive 2014/30/EU (EMC compliance). While not certified for GMP manufacturing environments, its design aligns with GLP documentation requirements—including traceable speed calibration logs and user-accessible firmware versioning—for regulated clinical laboratories operating under CAP or COLA accreditation frameworks.

Software & Data Management

The TG12 operates as a standalone instrument with embedded firmware (v2.1+), supporting parameter recall of up to 10 pre-programmed protocols (e.g., “Hematocrit_3min”, “Plasma_Separation_5min”). No external software is required for routine operation; however, optional RS-232 serial output enables integration with LIS/HIS platforms for audit-trail logging of run timestamps, speed settings, and rotor usage cycles. All operational events—including lid open/close, over-speed alerts, and thermal shutdown—are timestamped and stored in non-volatile memory for internal review. Firmware updates are performed via USB port using signed binary files, maintaining data integrity per FDA 21 CFR Part 11 alignment principles (electronic record retention, operator authentication via PIN).

Applications

• Routine hematocrit (HCT) determination in outpatient clinics, blood banks, and veterinary diagnostics.
• Separation of microvolumes (≤50 µL) of serum, plasma, or cerebrospinal fluid for subsequent immunoassay or electrophoresis analysis.
• Pre-analytical processing of capillary blood collected via fingerstick or heelstick in pediatric and geriatric populations.
• Quality control verification of anticoagulant efficacy by assessing red cell aggregation patterns post-centrifugation.
• Research applications involving density-gradient fractionation of peripheral blood mononuclear cells (PBMCs) when paired with compatible density media and extended run protocols.

FAQ

What capillary tube dimensions are supported by the TG12 rotor?
Standard 75 mm length × 1.0–1.2 mm inner diameter capillary tubes, including Wintrobe, Micro-Hematocrit, and disposable plastic variants.
Is the TG12 compliant with ISO 15189 for medical laboratories?
Yes—the device’s speed accuracy, RCF reproducibility, and mechanical stability meet the technical validation requirements specified in ISO 15189:2022 Annex B for centrifugal equipment used in clinical testing.
Can the TG12 be used for platelet-rich plasma (PRP) preparation?
It is not recommended for PRP isolation, as optimal PRP protocols require precisely controlled dual-speed sequential centrifugation and swing-out rotor configurations not supported by this fixed-angle platform.
Does the unit include calibration documentation?
Each unit ships with a factory-issued calibration certificate verifying speed accuracy at 3,000 rpm, 6,000 rpm, and 12,000 rpm, traceable to NIM (National Institute of Metrology, China) standards.
What maintenance schedule is recommended?
Biannual visual inspection of rotor integrity, annual cleaning of air intake filters, and rotor lifetime tracking (max 10,000 runs or 5 years, whichever occurs first) per manufacturer guidelines.