MKN 800 Benchtop Centrifuge (Export Model)
| Brand | MKN |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | 800 |
| Max Speed | 4000 rpm |
| Relative Centrifugal Force (RCF) | 1430 × g |
| Capacity | 6 × 20 mL |
| Noise Level | ≤60 dB(A) |
| Power Supply | AC 220 V, 50 Hz, 10 A |
Overview
The MKN 800 Benchtop Centrifuge is a compact, general-purpose centrifuge engineered for reliable sedimentation-based separation in routine laboratory workflows. It operates on the principle of centrifugal force generation through high-precision rotor rotation, enabling density-dependent stratification of heterogeneous liquid samples—including whole blood, serum, plasma, cell suspensions, and reagent mixtures. Designed for consistent performance under continuous operation, the unit features a brushless DC motor with stepless speed control (0–4000 rpm), ensuring precise reproducibility across repeated runs. Its robust aluminum alloy rotor assembly—machined to ISO 15887-compliant balance tolerances—minimizes vibration and thermal drift, supporting stable operation at rated RCF (1430 × g) without requiring active cooling. The device complies with IEC 61010-1:2010 safety standards for electrical equipment used in laboratory environments and meets EMC requirements per EN 61326-1.
Key Features
- Stepless speed regulation (0–4000 rpm) with digital setpoint display and ±20 rpm accuracy at full scale
- Automatically balanced rotor system with self-centering design; eliminates manual tube pairing during loading
- Die-cast aluminum rotor chamber and precision-machined 6-place swing-out rotor (6 × 20 mL conical tubes, max. Ø16 mm)
- Low-noise operation (≤60 dB[A] at 1 m distance) achieved via optimized airflow ducting and vibration-damping base mount
- Thermally efficient motor housing with passive heat dissipation; surface temperature rise limited to <15 °C above ambient after 30 min continuous run
- Integrated safety interlock: lid latch sensor disables drive unless fully closed and locked; automatic deceleration upon lid opening
- Over-speed and over-temperature protection circuits compliant with UL/CSA Class II insulation requirements
Sample Compatibility & Compliance
The MKN 800 accommodates standard polypropylene or glass conical centrifuge tubes (15–20 mL), including those meeting ASTM D4169 performance criteria for transport stability. It supports protocols aligned with CLSI GP44-A4 (Centrifugation Requirements for Clinical Laboratories) and is routinely employed in pre-analytical processing steps preceding immunoassay, ELISA, and coagulation testing. While not certified for biosafety level (BSL)-2 containment, its sealed rotor chamber prevents aerosol escape during normal operation when used with capped tubes. The unit carries CE marking under the Low Voltage Directive (2014/35/EU) and Electromagnetic Compatibility Directive (2014/30/EU). Documentation includes factory calibration certificate traceable to NIM (National Institute of Metrology, China) standards.
Software & Data Management
As a manually operated benchtop instrument, the MKN 800 does not incorporate embedded microprocessor-based data logging or PC connectivity. All operational parameters are set and monitored via front-panel LED indicators and tactile rotary encoder. For laboratories requiring audit-ready records, users may integrate the centrifuge into broader quality management systems using external timers and manual logbooks compliant with ISO/IEC 17025:2017 clause 7.5.2 (Control of Records). Optional third-party IoT adapters (e.g., RS-485-to-Ethernet gateways) can be retrofitted for basic runtime tracking, though such modifications fall outside MKN’s warranty scope and require validation per GLP Annex 11 principles.
Applications
- Routine serum/plasma separation from whole blood specimens in clinical diagnostics labs
- Precipitation of cellular debris prior to supernatant analysis in biochemical assays
- Clarification of bacterial culture lysates in molecular biology workflows
- Concentration of suspended nanoparticles or colloidal dispersions in materials science screening
- Phase separation in solvent extraction procedures involving immiscible liquid systems (e.g., chloroform/methanol/water)
- Preparative isolation of extracellular vesicles from conditioned media (when combined with differential centrifugation protocols)
FAQ
Is the MKN 800 suitable for use with infectious or hazardous biological samples?
It is intended for non-BSL-2 applications only. Use with biohazardous material requires secondary containment (e.g., sealed buckets or sealed rotors) validated separately by the end user.
Does the centrifuge include rotor certification documentation?
Yes—each unit ships with a rotor serial-numbered compliance statement verifying dynamic balancing per ISO 15887 Annex B.
Can the speed be calibrated onsite by the user?
No. Speed calibration requires factory-grade tachometric verification and must be performed by authorized MKN service personnel.
What is the expected service life under typical lab usage (8 h/day, 5 days/week)?
With scheduled maintenance (bearing inspection every 12 months), the motor and mechanical assembly are rated for ≥10,000 operating hours.
Are replacement rotors available with different tube configurations?
Standard offerings include only the 6 × 20 mL swing-out rotor. Custom rotor geometries require formal engineering review and minimum order quantities.
