YiHeng BLF-P25 Mini Microplate Centrifuge

Overview

The YiHeng BLF-P25 Mini Microplate Centrifuge is an engineered benchtop solution designed exclusively for rapid, low-force sedimentation of liquid residues in standard 96-well microplates. Unlike conventional centrifuges requiring horizontal plate placement or adapter-based loading, the BLF-P25 employs a vertical insertion architecture—microplates are inserted directly into a fixed-angle rotor from the top, aligning each well perpendicular to the axis of rotation. This geometry ensures that capillary forces and surface tension dominate over gravitational displacement during operation, preventing leakage even with partially filled wells or low-viscosity reagents such as PCR master mixes or enzymatic reaction buffers. Operating at a precisely regulated 2,500 rpm, the unit delivers a maximum relative centrifugal force (RCF) of 500 × g—sufficient to pellet residual droplets along well walls without shearing sensitive biomolecules or disrupting pre-assembled reaction mixtures. Its compact footprint (190 × 220 × 180 mm) and absence of external cooling or vacuum systems make it suitable for integration into biosafety cabinets, PCR prep areas, and high-density lab benches where spatial constraints limit deployment of full-size centrifuges.

Key Features

• Vertical-insertion rotor design optimized for ANSI/SLAS-standard 96-well microplates—no adapters or clamps required
• Stable, brushless DC motor with closed-loop speed control ensuring ±20 rpm accuracy across operating range
• Programmable run time (5–60 seconds) with automatic brake and lid interlock for operator safety per IEC 61010-1
• Low-noise operation (<55 dB(A)) achieved via balanced rotor assembly and vibration-dampening housing
• Non-corrosive, chemical-resistant housing compatible with routine decontamination using 70% ethanol or 0.5% sodium hypochlorite
• Zero-liquid-leak performance validated with aqueous solutions (0.5–200 µL/well) across skirted, semi-skirted, and unskirted plate formats

Sample Compatibility & Compliance

The BLF-P25 accepts all commercially available 96-well microplates conforming to ANSI/SLAS standards—including polypropylene PCR plates (full-skirted, half-skirted, and unskirted), low-profile qPCR plates, and sterile cell culture plates with flat or V-bottom wells. It does not support 384-well or deep-well plates due to dimensional constraints of the rotor cavity. The device complies with EN 61326-1 (EMC for laboratory equipment) and EN 61010-1:2010+A1:2019 (safety requirements for electrical equipment). While not certified under FDA 21 CFR Part 11, its deterministic timing and mechanical simplicity support GLP-aligned documentation practices when integrated into controlled workflows.

Software & Data Management

The BLF-P25 operates as a standalone instrument with no embedded software, firmware updates, or data logging capability—consistent with ISO/IEC 17025:2017 guidance for simplified instrumentation used in routine sample preparation. All operational parameters are set via tactile membrane buttons; no USB, Bluetooth, or network interfaces are present. This architecture eliminates cybersecurity risks, reduces validation burden, and ensures long-term reproducibility without dependency on proprietary drivers or cloud platforms. Users may document run conditions manually or integrate timing logs into LIMS via external timestamped entries.

Applications

• Pre-PCR centrifugation to consolidate reaction mixtures at well bottoms, minimizing pipetting error and improving thermal cycling uniformity
• Post-lysis centrifugation of cell lysates in ELISA or protein binding assays to remove insoluble debris prior to transfer
• Routine consolidation of supernatants in high-throughput screening workflows involving enzyme kinetics or inhibitor titrations
• Removal of condensation droplets from plate lids after cold storage or humidity-controlled incubation
• Centrifugal priming of filter-bottom plates prior to vacuum filtration or solid-phase extraction steps

FAQ

Can the BLF-P25 accommodate 384-well microplates?
No—the rotor cavity is dimensionally constrained to accept only standard-height 96-well plates (12.5–14.5 mm tall). Attempting to insert taller or narrower-format plates may compromise rotor balance and void warranty.
Is the unit compatible with PCR plates containing optical seals or adhesive films?
Yes—vertical insertion avoids lateral shear forces that could displace heat-sealed or pressure-sensitive films. Validation testing confirms film integrity remains intact after up to 100 consecutive runs.
Does the BLF-P25 require calibration or periodic maintenance?
No scheduled calibration is required. Routine cleaning of the rotor cavity and lid seal with lint-free wipes is recommended after each use. Motor and electronics are rated for ≥10,000 hours of operation under typical lab conditions.
What safety certifications does the BLF-P25 hold?
It carries CE marking per Directive 2014/30/EU (EMC) and 2014/35/EU (LVD), and conforms to IEC 61010-1:2010+A1:2019 for protection against electric shock, mechanical hazards, and abnormal temperature rise.