AnTing Feige 800B Benchtop Low-Speed Centrifuge

Overview

The AnTing Feige 800B Benchtop Low-Speed Centrifuge is an entry-level, manually operated centrifuge engineered for reproducible sedimentation of biological suspensions in non-critical, low-throughput laboratory environments. Operating on the principle of radial acceleration-induced phase separation, the 800B generates a maximum relative centrifugal force (RCF) of 1430 ×g at 4000 rpm—sufficient for pelleting erythrocytes, separating serum from clotted blood, isolating platelet-poor plasma, and clarifying cell culture supernatants. Its fixed-angle rotor configuration ensures consistent orientation of sample tubes during rotation, minimizing run-to-run variability in sediment geometry and interface definition. Designed without refrigeration or programmable speed ramping, the 800B prioritizes mechanical simplicity, electrical safety, and ease of cleaning—making it suitable for shared-use spaces such as hospital satellite labs, teaching facilities, and point-of-care diagnostic units where GMP-grade traceability is not mandated but GLP-aligned operational discipline is maintained.

Key Features

• Robust high-strength polymer housing resistant to common laboratory solvents and disinfectants, with integrated ventilation slots for passive thermal dissipation
• Manually controlled analog speed dial with tactile feedback and calibrated RPM scale (0–4000 rpm), enabling repeatable manual setpoint selection without digital interface dependency
• Fixed-angle aluminum rotor (6-position, 20 mL tube capacity) with precision-machined tube pockets ensuring uniform angular alignment and minimal vibration at rated speed
• Passive braking system with mechanical deceleration profile optimized to prevent resuspension of loosely packed pellets
• UL/CE-compliant power module (220 V, 50 Hz, 40 W) with overcurrent protection and grounded chassis design meeting IEC 61010-1 safety requirements for Class II laboratory equipment
• Compact footprint (245 × 210 mm) and low mass (5 kg) facilitating benchtop deployment in space-constrained environments including biosafety cabinets and mobile lab carts

Sample Compatibility & Compliance

The 800B accommodates standard conical-bottom polypropylene or glass test tubes (10–20 mL) with wall thickness ≥0.8 mm. It is validated for use with human whole blood, serum, plasma, urine sediments, and microbial broth cultures—provided samples are pre-balanced to ±0.5 g per opposing position. While not certified to ISO 22870 or CLSI EP25-A2 for clinical diagnostics, its mechanical performance aligns with routine quality control benchmarks defined in CLSI GP19-A4 for basic centrifugation procedures. The unit meets electromagnetic compatibility (EMC) requirements per EN 61326-1 and carries CE marking under the Low Voltage Directive (2014/35/EU). No FDA 21 CFR Part 11 compliance features are implemented, as the device lacks electronic data logging or user authentication.

Software & Data Management

The 800B operates without embedded firmware, software, or connectivity interfaces. All operational parameters—including speed setting, run duration (user-timed via external stopwatch), and rotor identification—are recorded manually in laboratory notebooks or LIMS-compatible paper-based logs. This architecture eliminates cybersecurity vulnerabilities associated with networked instruments and supports audit readiness in environments where handwritten records constitute primary source documentation under ISO/IEC 17025 Clause 7.5.2. For laboratories requiring electronic record retention, integration with third-party timer apps or barcode-scanned run sheets is recommended to maintain ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate).

Applications

• Routine serum/plasma separation in outpatient clinics and rural health centers where refrigerated or high-speed centrifugation is unnecessary
• Preparative pelleting of yeast or bacterial cells prior to DNA extraction protocols (e.g., CTAB-based isolation)
• Sediment analysis in environmental water testing workflows involving suspended solids concentration
• Teaching demonstrations of sedimentation kinetics and Stoke’s law validation using latex microsphere suspensions
• Initial clarification of plant tissue homogenates prior to column chromatography or electrophoresis
• Supporting ISO 15189-accredited hematology workflows for slide preparation when paired with standardized capillary tube filling techniques

FAQ

Is the 800B compatible with 15 mL conical tubes?
Yes—when used with appropriate adapter sleeves, the 20 mL rotor accepts 15 mL polypropylene conical tubes without compromising balance or rotor integrity.
Does the unit include a lid lock mechanism?
No. The 800B relies on a manually latched hinged cover with mechanical interlock that prevents operation unless fully closed; no electronic sensor-based locking is present.
Can this centrifuge be used for virus pelleting?
No. With a maximum RCF of 1430 ×g, the 800B falls significantly below the 100,000+ ×g required for ultracentrifugal viral particle isolation.
What maintenance is required?
Monthly visual inspection of rotor threads and housing integrity; biannual cleaning of ventilation grilles with isopropyl alcohol; annual verification of speed accuracy using a calibrated tachometer.
Is rotor balancing mandatory before each run?
Yes. As with all fixed-angle centrifuges, symmetrical mass distribution across opposing positions is essential to prevent excessive vibration, bearing wear, and potential failure.