Brookfield TDZ5B-WS Benchtop Low-Speed Centrifuge
| Brand | BIORIDGE |
|---|---|
| Origin | Shanghai, China |
| Model | TDZ5B-WS |
| Instrument Type | Benchtop Centrifuge |
| Speed Range | 0–5000 rpm |
| Max RCF | 4100 × g |
| Max Capacity | 16 × 15 mL (horizontal rotor) |
| Dimensions (L×W×H) | 410 × 490 × 310 mm |
| Noise Level | <65 dB(A) |
| Power Supply | AC 220 V, 50 Hz, 10 A |
| Net Weight | 22 kg |
| Speed Accuracy | ±50 rpm |
| Timer Range | 1–99 min |
| Rotor Material | Stainless Steel |
| Safety Features | Electronic lid lock, overspeed protection, automatic fault alarm |
| Display | LCD with real-time rpm/RCF conversion |
| Control | Microprocessor-based, programmable touch interface |
Overview
The Brookfield TDZ5B-WS is a microprocessor-controlled, benchtop low-speed centrifuge engineered for routine separation tasks in clinical, academic, and industrial laboratories. It operates on the principle of sedimentation under controlled gravitational force (RCF), enabling efficient pelleting of cells, organelles, precipitates, and other particulate matter from suspensions. Designed for stability and operational safety, the unit employs a brushless DC motor to deliver consistent rotational performance with minimal mechanical wear and acoustic emission (<65 dB[A]). Its maximum speed of 5000 rpm and corresponding RCF of 4100 × g are optimized for applications requiring gentle yet effective separation—such as blood component isolation, yeast or bacterial pellet recovery, and polymer precipitation—without compromising structural integrity of sensitive biological matrices.
Key Features
- Brushless DC motor drive ensures long service life, low maintenance, and high torque consistency across speed ranges.
- Intuitive touch-panel interface with backlit LCD display supports real-time switching between rpm and RCF values, eliminating manual conversion errors.
- Programmable operation allows users to store and recall up to multiple user-defined protocols—including speed, time, and acceleration/deceleration profiles—for repeatable workflow execution.
- Electronic lid interlock system prevents operation unless the rotor chamber is fully sealed; integrated overspeed and imbalance detection triggers immediate shutdown and audible/visual alerts.
- Fully stainless-steel horizontal rotor assembly—compatible with interchangeable tube carriers—resists corrosion and facilitates rapid cleaning and validation per GLP-compliant lab practices.
- Compact footprint (410 × 490 × 310 mm) and lightweight design (22 kg net) enable flexible placement on standard lab benches or within biosafety cabinets where space is constrained.
Sample Compatibility & Compliance
The TDZ5B-WS accommodates common laboratory tubes including 15 mL conical centrifuge tubes (16-place configuration), 10 mL tubes (24-place), and 50 mL tubes (4-place), all supported by dedicated stainless-steel carriers. Tube compatibility extends to polypropylene, polycarbonate, and glass vessels rated for ≥4100 × g. The centrifuge meets IEC 61010-1:2010 safety standards for electrical equipment used in laboratory environments. While not certified for ISO 13485 or FDA 21 CFR Part 11 out-of-the-box, its programmable memory, audit-ready parameter logging (via optional external data logger), and deterministic control architecture support integration into GMP/GLP-aligned quality systems when deployed with documented SOPs.
Software & Data Management
The TDZ5B-WS operates autonomously via embedded firmware without external PC dependency. All run parameters—including set speed, elapsed time, actual RCF, and fault codes—are retained in non-volatile memory and displayed during operation. Though it lacks native USB or Ethernet connectivity, the device supports manual documentation of runs through its timestamped LCD readouts. For labs requiring electronic record retention, third-party serial-to-USB adapters may be used to capture console output for import into LIMS or ELN platforms—provided local validation confirms data integrity and traceability per ALCOA+ principles.
Applications
- Routine blood processing: separation of serum, plasma, and cellular fractions from whole blood specimens.
- Microbial culture harvesting: pelleting of E. coli, S. cerevisiae, or Bacillus spp. prior to lysis or storage.
- Cellular subfractionation: isolation of nuclei, mitochondria, or lysosomal vesicles using differential centrifugation protocols.
- Environmental sample preparation: clarification of water or soil extracts prior to spectrophotometric or chromatographic analysis.
- Quality control testing: sedimentation of suspended particles in pharmaceutical suspensions or cosmetic emulsions per USP & EP monographs.
- Educational use: demonstration of centrifugal force principles and sedimentation kinetics in undergraduate biochemistry and microbiology labs.
FAQ
What is the maximum relative centrifugal force (RCF) achievable with the TDZ5B-WS?
The instrument delivers a maximum RCF of 4100 × g at 5000 rpm with the 15 mL × 16 horizontal rotor.
Does the centrifuge support rotor auto-balancing or imbalance compensation?
No. The TDZ5B-WS includes electronic imbalance detection and automatic shutdown but does not feature active balancing mechanisms; users must manually balance tube loads symmetrically.
Can this centrifuge be used for clinical diagnostics under CLIA or CAP requirements?
Yes—provided it is included in the lab’s equipment qualification protocol (IQ/OQ/PQ), maintained per manufacturer guidelines, and operated with documented calibration checks and preventive maintenance logs.
Is the rotor autoclavable?
The stainless-steel rotor and carriers are heat-resistant and compatible with steam sterilization at 121°C for 20 minutes; however, repeated autoclaving may affect surface passivation over time and should be validated per institutional bioburden control policies.
What power supply specifications are required for stable operation?
A dedicated 220 V AC, 50 Hz circuit with minimum 10 A capacity and proper grounding is mandatory to prevent voltage sag during acceleration phases.
