AnTing TDL-4D Benchtop Low-Speed Centrifuge
| Brand | AnTing |
|---|---|
| Origin | Shanghai, China |
| Model | TDL-4D |
| Type | Benchtop Centrifuge |
| Speed Range | 0–4000 rpm |
| Max RCF | 1430 ×g |
| Rotor Type | Fixed-Angle |
| Rotor Capacity | 15 mL × 6 |
| Timer Range | 0–99 min |
| Power Supply | 220 V, 50 Hz, 180 W |
| Dimensions (L×W×H) | 520 × 375 × 335 mm |
| Weight | 45 kg |
| Construction | Reinforced polymer housing with electronic door interlock |
| Cooling | Ambient (non-refrigerated) |
| Control System | Microprocessor-based touch interface with variable-speed ramping |
Overview
The AnTing TDL-4D is a microprocessor-controlled benchtop low-speed centrifuge engineered for routine separation tasks in academic laboratories, quality control environments, and small-scale production facilities. It operates on the principle of sedimentation under centrifugal force—applying radial acceleration to accelerate phase separation based on particle density, size, and medium viscosity. With a maximum rotational speed of 4000 rpm and a corresponding relative centrifugal force (RCF) of 1430 ×g, the TDL-4D is optimized for applications requiring gentle yet reliable pelleting of cells, precipitates, or particulates without inducing shear-induced damage. Its fixed-angle rotor configuration ensures rapid sedimentation into compact pellets along the tube wall, facilitating efficient post-centrifugation handling. Designed for ambient-temperature operation, the unit does not incorporate active refrigeration; therefore, it is suited for protocols where thermal stability of samples is not compromised by brief exposure to room temperature during processing.
Key Features
- Microprocessor-based touch-control interface enabling precise speed and time setting with real-time display of rpm, RCF, elapsed time, and remaining time
- Variable acceleration and deceleration profiles to minimize sample disturbance during start-up and braking phases
- Electronic door interlock system ensuring automatic motor shutdown when lid is opened—compliant with IEC 61010-1 safety requirements for laboratory equipment
- Reinforced polymer chassis providing structural rigidity while maintaining a lightweight footprint (45 kg), suitable for standard lab benches without floor reinforcement
- Low-noise brushless DC motor delivering high torque at low speeds with extended service life and minimal maintenance
- Self-balancing rotor detection logic that halts operation if imbalance exceeds safe threshold, preventing mechanical stress and vibration amplification
Sample Compatibility & Compliance
The TDL-4D accommodates standard conical-bottom polypropylene or glass centrifuge tubes up to 15 mL in volume, arranged in a six-position fixed-angle rotor (15°–25° angle range). It supports common biological and chemical workflows including serum/plasma separation, yeast or bacterial pellet recovery, polymer precipitation, and colloidal suspension clarification. While not certified for GLP/GMP-regulated clinical diagnostics, its operational repeatability and traceable parameter logging (via optional external data capture) align with ISO/IEC 17025 pre-analytical process documentation standards. The device meets electromagnetic compatibility (EMC) Class B limits per CISPR 11 and conforms to electrical safety standards EN 61010-1:2010+A1:2013.
Software & Data Management
The TDL-4D features embedded firmware with non-volatile memory capable of storing up to 10 user-defined protocols—including speed, time, and ramp settings—for rapid recall. Though it lacks built-in USB or Ethernet connectivity, its analog output signals (0–5 V) can be interfaced with external data acquisition systems for time-stamped event logging. For regulated environments, manual record-keeping of run parameters (date, operator ID, rotor serial number, speed, duration, and observed anomalies) satisfies basic audit trail requirements under FDA 21 CFR Part 11 Annex 11 guidance when paired with controlled document procedures. Optional third-party Lab Information Management Systems (LIMS) integration is achievable via RS-232 serial emulation using TTL-level adapters.
Applications
- Routine blood fractionation in teaching labs and point-of-care screening units
- Pelleting of mammalian and insect cell cultures prior to lysis buffer addition
- Removal of insoluble aggregates from protein purification intermediates
- Clarification of fermentation broths and enzyme reaction mixtures
- Preparative isolation of starch granules, pollen, or soil particulates in environmental analysis
- Supporting ASTM D6978-05 (Standard Practice for Handling and Processing of Biological Samples) for non-critical biospecimen handling
FAQ
Is the TDL-4D equipped with refrigeration?
No—the TDL-4D is a non-refrigerated centrifuge designed for ambient-temperature operation only.
Can I use swing-bucket rotors with this model?
No—only the supplied fixed-angle rotor (15 mL × 6) is mechanically and dynamically validated for use with the TDL-4D drive system.
What is the recommended maintenance interval?
Visual inspection and cleaning every 3 months; rotor lifetime verification (including crack detection) every 12 months per manufacturer guidelines.
Does the unit support programmable acceleration/deceleration rates?
Yes—three preset ramp profiles (soft, standard, fast) are selectable via the touch interface.
Is calibration traceable to national standards?
Speed calibration is performed using an NIST-traceable tachometer during factory acceptance testing; field recalibration requires authorized service personnel.
