DRETOP TS5 Series Overhead Electric Stirrer

Overview

The DRETOP TS5 Series Overhead Electric Stirrer is an engineered solution for precise, reproducible mechanical agitation in research, quality control, and production laboratories. Utilizing a brushless DC motor coupled with microprocessor-based speed regulation, the TS5 implements closed-loop rotational control to maintain consistent torque delivery across its full operational range—from low-speed suspension of dense particulates to high-shear dispersion of viscous polymer solutions. Its overhead configuration eliminates submerged drive units, minimizing contamination risk and enabling compatibility with sealed or pressurized vessels. The system is purpose-built for applications requiring long-duration, stable mixing of Newtonian and non-Newtonian fluids—including crude oil emulsions, pharmaceutical suspensions, biopolymer gels, and catalytic slurries—under ambient or temperature-controlled conditions.

Key Features

• Brushless DC motor architecture ensures maintenance-free operation, low acoustic emission (<55 dB(A) at 1 m), and thermal stability during extended duty cycles (up to 100% continuous load).
• Real-time dual LED display shows both setpoint and actual rotational speed (rpm) alongside elapsed time; resolution: ±1 rpm, repeatability: ±0.5% of set value.
• Intelligent soft-start algorithm prevents torque shock at initiation, reducing splashing and vessel displacement—critical when working with narrow-necked glassware such as Erlenmeyer flasks or reaction kettles.
• Forward/reverse rotation capability enables controlled de-agglomeration and re-suspension of settled solids without manual repositioning.
• Integrated electronic overload protection triggers immediate shutdown upon current surge detection, followed by automatic circuit reset after thermal cooldown—eliminating fuse replacement and downtime.
• Ergonomic rotary speed dial with tactile feedback allows intuitive adjustment; fine-tuned 20 rpm increments ensure granular control over shear rate profiles.
• Modular chuck design (0.5–10 mm capacity) supports rapid interchange of standardized impellers—including propeller, paddle, anchor, and turbine geometries—facilitating method transfer across viscosity regimes.

Sample Compatibility & Compliance

The TS5 Series accommodates vessels from 50 mL beakers to 20 L jacketed reactors, with optional extension columns supporting heights up to 800 mm. All contact materials—including standard 316 stainless steel shafts and PTFE-coated impellers—meet USP Class VI biocompatibility requirements and resist corrosion from organic solvents, acids (pH ≥2), and alkaline media (pH ≤12). The unit complies with IEC 61010-1:2010 for electrical safety in laboratory equipment and incorporates electromagnetic compatibility per EN 61326-1:2013. For regulated environments, firmware logging (via optional RS-232/USB interface) supports 21 CFR Part 11–compliant electronic records when paired with validated data acquisition software.

Software & Data Management

While the base TS5 operates via standalone hardware controls, optional digital modules enable PC-based parameter logging, remote start/stop, and batch protocol storage. Timestamped speed and runtime data can be exported in CSV format for integration into LIMS or ELN platforms. Audit trail functionality—tracking operator ID, parameter changes, and fault events—is available through certified third-party middleware compliant with ISO/IEC 17025 Clause 5.9 and FDA guidance on computerized system validation.

Applications

• Homogenization of vaccine adjuvant suspensions and liposomal formulations in pharmaceutical development labs.
• Continuous blending of catalyst slurries in petrochemical R&D reactors operating under inert atmosphere.
• Preparation of standardized reference standards for viscosity calibration per ASTM D2196 and ISO 3219.
• Long-term stability testing of coatings and inks under controlled shear history protocols.
• Cell culture media conditioning in bioprocess scale-down models where gas sparging must be synchronized with agitation.
• Environmental sample digestion (e.g., EPA Method 3050B) requiring uniform acid–solid contact without foaming.

FAQ

What impeller types are compatible with the TS5 Series?
Standard offerings include four-blade propellers (JSY-4A/E), three-blade paddles (JSY-3A/E), linear stirrers (JYZ-1A/E), and centrifugal turbines (JLX-1A/E), all available in 316 stainless steel or PTFE-coated variants.
Can the TS5 operate inside a fume hood or glovebox?
Yes—the unit’s external power supply and fully enclosed motor housing meet IP20 ingress protection standards, permitting safe use in ventilated enclosures with standard electrical feedthroughs.
Is speed calibration traceable to national standards?
Factory calibration uses NIST-traceable tachometers; users may perform field verification using calibrated optical tachometers per ISO 17025 procedures.
How is thermal management handled during high-torque operation?
Active heat dissipation is achieved via aluminum finned heatsinks integrated into the motor housing, allowing sustained operation at maximum rated torque without derating.
Does the TS5 support external triggering or analog signal input?
Not natively—but optional I/O expansion modules provide 0–10 V analog speed control, TTL-compatible start/stop signals, and fault relay outputs for integration into automated reactor systems.