CZGY LD-5 Benchtop Electric Centrifuge
| Brand | CZGY |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Model | LD-5 |
| Max Capacity | 6 × 50 mL |
| Max Speed | 4000 rpm |
| Dimensions | 290 × 330 × 260 mm |
| Power Supply | 220 V, 50 Hz |
| Motor Power | 80 W |
| RCF (Relative Centrifugal Force) | 2395 × g |
| Timing Control | Digital Timer |
| Display | Digital RPM Readout |
| Safety | Interlocked Transparent Lid |
| Compliance | CE-marked design principles (IEC 61010-1), GLP-ready operational protocol |
Overview
The CZGY LD-5 Benchtop Electric Centrifuge is a compact, high-reliability centrifugation system engineered for routine separation tasks in clinical diagnostics, biomedical research, and quality control laboratories. Utilizing fixed-angle rotor geometry and brushless DC motor technology, the LD-5 delivers stable rotational dynamics at speeds up to 4000 rpm, generating a maximum relative centrifugal force (RCF) of 2395 × g—sufficient for efficient pelleting of erythrocytes, leukocytes, platelets, bacterial cells, and precipitated macromolecules. Its low-profile footprint (290 × 330 × 260 mm) enables seamless integration into constrained benchtop environments, including hospital hematology labs, vaccine production QC suites, and academic teaching laboratories. The unit operates on standard 220 V / 50 Hz mains power and incorporates thermal protection circuitry to prevent motor overload during extended operation.
Key Features
- Digital RPM display with real-time speed monitoring for precise method reproducibility
- Programmable mechanical timer (0–99 min) with automatic shut-off and audible alert
- Interlocked transparent polycarbonate lid—meets IEC 61010-1 mechanical safety requirements for operator protection during rotation
- Balanced-load detection guidance: recommended sample mass deviation ≤ ±3 g across opposing tubes to minimize vibration and bearing stress
- Brushless DC motor with 80 W nominal output—optimized for low-noise, low-heat operation and extended service life
- Fixed-angle rotor (6-position, 50 mL tube capacity) fabricated from corrosion-resistant aluminum alloy with precision-machined cavities
- Non-slip rubber feet and reinforced chassis structure ensure stability under full-load conditions
Sample Compatibility & Compliance
The LD-5 accommodates standard conical-bottom polypropylene or glass centrifuge tubes (up to 50 mL volume) and is routinely deployed in applications involving whole blood fractionation, serum/plasma isolation, urine sediment concentration, and microbial pellet recovery. It supports workflows aligned with CLSI H26-A3 (clinical centrifugation standards) and ISO 15189 pre-analytical requirements. While not FDA 510(k)-cleared as an IVD device, its construction and operational logic conform to general laboratory equipment safety benchmarks (IEC 61010-1). For GLP/GMP environments, users may implement manual audit trails for run parameters (time, speed, date), and the absence of network connectivity ensures data integrity without cybersecurity exposure.
Software & Data Management
The LD-5 operates as a standalone electromechanical instrument with no embedded firmware or digital data export capability. All operational parameters—including set speed, elapsed time, and final stop status—are observable via front-panel LED indicators and analog/digital hybrid controls. This architecture eliminates software validation burdens under FDA 21 CFR Part 11 or EU Annex 11, making it suitable for regulated environments where simplicity, traceability, and deterministic behavior are prioritized over automation. Laboratories requiring electronic record retention may integrate external logging devices or document runs manually within LIMS-compatible templates.
Applications
- Routine serum and plasma separation from venous blood specimens (e.g., for ELISA, clinical chemistry, or coagulation testing)
- Concentration of microorganisms (e.g., E. coli, yeast) prior to DNA extraction or protein analysis
- Pellet recovery in vaccine manufacturing processes, including adjuvant formulation and antigen purification steps
- Urine sediment analysis in nephrology and urology diagnostics
- Preparative centrifugation in undergraduate biochemistry teaching labs (e.g., enzyme assay sample prep, protein precipitation)
- Stabilization of colloidal suspensions and emulsions during formulation development
FAQ
What is the maximum RCF achievable with the LD-5 at 4000 rpm?
At 4000 rpm with the standard 6 × 50 mL rotor, the LD-5 generates a maximum RCF of 2395 × g, calculated at the tube bottom radius (127 mm).
Is the centrifuge compatible with 15 mL conical tubes?
Yes—the rotor accepts common 15 mL and 50 mL conical-bottom centrifuge tubes without adapters; tube height must not exceed 115 mm.
Does the LD-5 include rotor imbalance protection?
It does not feature active imbalance shutdown, but the interlocked lid prevents operation unless properly closed, and mechanical design limits vibration transmission when load imbalance remains within ±3 g tolerance.
Can the timer be bypassed for continuous operation?
No—the timer is non-bypassable by design; the unit halts automatically upon reaching the preset duration, ensuring consistent protocol adherence.
What maintenance is required for long-term reliability?
Routine cleaning of the rotor chamber and lid gasket with 70% ethanol; annual inspection of rotor threads and motor ventilation grilles; no lubrication required for the sealed brushless motor.
