Xiangyi L535-1 Benchtop Low-Speed High-Capacity Centrifuge

Overview

The Xiangyi L535-1 is a floor-standing, low-speed high-capacity centrifuge engineered for routine separation tasks in clinical diagnostics, cell culture laboratories, and basic life science research. Designed around the principles of sedimentation kinetics under gravitational acceleration, it delivers reliable, reproducible pelleting of cells, bacteria, erythrocytes, and larger subcellular particles without inducing thermal or mechanical stress that could compromise sample integrity. Unlike ultracentrifuges or high-speed benchtop models, the L535-1 operates within a defined low-speed regime (0–5350 rpm), generating up to 5030 × g—sufficient for gentle yet effective separation of fragile biological matrices while minimizing shear-induced lysis. Its robust architecture supports continuous operation in shared lab environments, with structural damping and optimized airflow management ensuring thermal stability during extended runs.

Key Features

• High-capacity horizontal swing-out rotor configuration accommodating up to four 750 mL bottles—ideal for bulk processing of blood bags, fermentation broths, or tissue homogenates.
• AC brushless motor drive delivering high torque at low rotational speeds, eliminating carbon brush wear, electrical noise, and maintenance requirements associated with brushed DC motors.
• Microprocessor-based control system with real-time RCF (Relative Centrifugal Force) calculation and direct input—enabling precise method transfer across instruments and compliance with SOP-driven workflows.
• Electronic lid interlock with auto-latching mechanism: door must be fully closed before initiation; runtime interruption prevents opening; failure to engage triggers immediate stop and fault code display.
• Nine programmable acceleration profiles and ten deceleration curves—including soft-brake modes—to minimize resuspension of pellets and preserve stratified layers in density gradients.
• Dual-stage damping system integrated into the rotor chamber and base frame, reducing vibration transmission and enhancing operational stability—even at maximum load imbalance conditions.
• 7075-T6 aluminum alloy rotors treated with hard-anodization (≥25 µm oxide layer thickness), providing exceptional corrosion resistance against saline buffers, ethanol, and common disinfectants used in biosafety Level 2 settings.

Sample Compatibility & Compliance

The L535-1 accommodates a broad range of primary and secondary containers via interchangeable buckets, adapters, and carrier systems—including conical tubes (15–50 mL), blood collection tubes (13 × 100 mm), and custom-sized bottles up to 750 mL. It meets fundamental safety and performance expectations outlined in IEC 61010-2-020 (Safety Requirements for Centrifuges) and complies with electromagnetic compatibility standards per EN 61326-1. While not certified for GMP manufacturing environments, its programmable protocols, audit-ready parameter logging (via optional RS232/USB export), and consistent RCF delivery support GLP-aligned documentation practices. For regulated applications requiring traceability, users may integrate instrument logs into LIMS platforms using standard ASCII output formats.

Software & Data Management

The onboard controller stores up to 10 user-defined protocols with independent time, speed, temperature (for L535R-1 variant), and brake profile settings. All parameters—including actual run time, final RCF, and error codes—are timestamped and retained in non-volatile memory for post-run review. Data export is supported via serial interface (RS232) or USB flash drive (optional firmware upgrade), enabling CSV-formatted reports compatible with Excel, LabArchives, or ELN systems. No proprietary software installation is required; raw log files conform to ISO/IEC 17025 traceability guidelines when paired with external calibration records.

Applications

• Clinical laboratories: Routine separation of whole blood into plasma, buffy coat, and packed red cells—compatible with ISO 15189 pre-analytical workflow validation.
• Cell culture facilities: Harvesting adherent or suspension-grown mammalian cells prior to cryopreservation or lysate preparation.
• Microbiology labs: Pellet recovery of bacterial cultures from large-volume LB or TB media for downstream DNA extraction or protein expression analysis.
• Veterinary diagnostics: Processing serum or milk samples for pathogen detection assays where thermal denaturation must be avoided.
• Environmental testing: Sedimentation of suspended solids from water or soil extracts prior to gravimetric or spectrophotometric analysis.

FAQ

What is the maximum permissible imbalance tolerance for the L535-1?
The centrifuge is rated for ≤5 g imbalance per bucket at full speed; automatic imbalance detection halts acceleration if threshold is exceeded.
Can the L535-1 be used for density gradient centrifugation?
Yes—its adjustable deceleration profiles and minimal residual vibration allow controlled settling in sucrose or Percoll gradients without disrupting band integrity.
Is rotor calibration required annually?
While not mandatory per manufacturer specification, annual verification of RCF accuracy using a calibrated tachometer and reference mass is recommended for ISO/IEC 17025 compliance.
Does the L535-1 support FDA 21 CFR Part 11-compliant electronic signatures?
No—the embedded controller does not include role-based access control or electronic signature functionality; however, exported data files may be archived in validated ELN systems meeting Part 11 requirements.
Are spare rotors and adapters available internationally?
Yes—standard horizontal rotors, bucket assemblies, and universal tube adapters are stocked by authorized distributors in North America, EMEA, and APAC regions with lead times under 4 weeks.