LED Overhead Stirrer (OS20-S)

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The LED Overhead Stirrer is an LED digital overhead mechanical stirrer featuring a brushless DC motor (60W input / 50W output), microprocessor-controlled speed regulation (50-2200 rpm), LED display for real-time speed monitoring, and overload protection with automatic motor stop, designed for high-viscosity (up to 10,000 mPa·s) and large-volume (up to 20 liters) mixing, homogenizing, and suspending applications in clinical diagnostic, pharmaceutical, and research laboratories .

Key features include a maintenance-free, explosion-proof brushless DC motor for quiet, long-lasting operation and safe use in volatile environments; through-shaft design for easy impeller height adjustment; anti-spill slow-start mechanism to prevent sample splashing; overload protection (LED indicator, automatic motor stop/standby) for equipment and sample safety; and compatibility with a wide range of stirrer shafts (0.5-10 mm chuck diameter) .

For the pharmaceutical formulation scientist and quality control chemist, the LED Overhead Stirrer supports mixing of creams, ointments, gels, and suspensions, API dissolution testing, and large-volume buffer and media preparation . For the clinical laboratory scientist, it facilitates bulk reagent preparation for immunoassays and clinical chemistry analyzers . For the analytical chemist, it enables precise mixing for chemical synthesis, polymerization, and organic synthesis workflows .

Universal voltage (100-240V, 50/60Hz) enables use in laboratories worldwide without voltage conversion, while the compact (83 × 220 × 186 mm) and lightweight (2.6 kg) design allows easy benchtop placement . The IP21/IP42-rated splash-resistant housing ensures safe operation in biosafety cabinets and fume hoods, including handling of biohazardous materials .

For the patient undergoing pharmaceutical therapy, the LED Overhead Stirrer precise speed control and overload protection ensure consistent formulation quality, batch-to-batch uniformity, and accurate API release testing—supporting the manufacturing of safe, effective medications . For patients requiring diagnostic testing, consistent reagent preparation across large batches reduces inter-run variability and improves the reliability of diagnostic test results across clinical chemistry, pharmaceutical QC, and analytical testing applications .

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Categories: LABORATORY EQUIPMENT AND SUPPLIES, Lab Consumables Tags: Clinical Laboratory Equipment, DLAB OS20-S, High Viscosity Mixer, Laboratory Stirrer, LED Overhead Stirrer, Overhead Mechanical Stirrer, Pharmaceutical Mixing, Quality Control Equipment

Description

LED Overhead Stirrer

PRIMARY CLINICAL & DIAGNOSTIC USES

1. High-Viscosity Sample Preparation for Pharmaceutical Formulations

Primary Use: Provides an LED digital overhead stirrer with brushless DC motor (60W input / 50W output), speed range 50-2200 rpm, and maximum viscosity handling of 10,000 mPa·s, designed for mixing, homogenizing, and suspending high-viscosity pharmaceutical formulations and active ingredients .
How it helps: For the pharmaceutical formulation scientist and quality control chemist, the LED Overhead Stirrer microprocessor-controlled speed regulation (accuracy ±1-3 rpm) and automatic torque adjustment (maximum 40 N·cm) ensure consistent mixing of creams, ointments, gels, and suspensions—critical for batch-to-batch uniformity and drug product quality. The LED display provides real-time speed monitoring for precise control . For the patient, consistent pharmaceutical formulation ensures that medications deliver the correct dosage and therapeutic effect with each use.

2. Large-Volume Clinical Sample Homogenization

Primary Use: Capable of stirring volumes up to 20 liters (water) with maximum torque of 40 N·cm, enabling large-batch preparation of reagents, buffers, and clinical samples for diagnostic testing workflows .
How it helps: For the clinical laboratory scientist and laboratory manager, the OS20-S’s large capacity (20L) and anti-spill slow-start feature allow efficient preparation of bulk reagents for immunoassays, clinical chemistry analyzers, and molecular diagnostics—reducing hands-on time and ensuring batch consistency. The universal voltage (100-240V, 50/60Hz) enables worldwide use . For the patient, consistent reagent preparation across large batches reduces inter-run variability and improves the reliability of diagnostic test results.

3. Overload Protection for Sample and Equipment Safety

Primary Use: Features overload protection with LED indicator and automatic motor stop, preventing damage to both the stirrer and the sample during high-viscosity or high-load stirring applications .
How it helps: For the clinical laboratory scientist and biosafety officer, the LED Overhead Stirrer overload protection (LED light indicator with automatic motor stop/standby) ensures that the stirrer automatically shuts down in case of excessive load or rotor blockage—preventing motor burnout and sample loss . For the patient, reliable equipment operation ensures uninterrupted sample processing, reducing delays in diagnostic result reporting.

4. Anti-Spill Slow-Start Mechanism for Safe Sample Handling

Primary Use: Features anti-spill slow-start mechanism (PC control system start-up with smooth acceleration) that prevents sample splashing and overflow during the initial stirring phase .
How it helps: For the clinical laboratory scientist handling valuable or hazardous biological samples, the LED Overhead Stirrer anti-spill slow-start mechanism gradually increases speed from zero to set point—preventing sample splashing, cross-contamination, and loss of valuable reagents or biohazardous materials . For the patient, slow-start operation protects sample integrity and reduces the risk of laboratory-acquired infections from aerosolized biohazardous materials.

5. Safe Handling of Biohazardous Materials

Primary Use: Features IP42 protection rating (splash-resistant), brushless DC motor (explosion-proof, maintenance-free), and safety circuit with automatic stop function, enabling safe handling of biohazardous materials in biosafety cabinets and fume hoods .
How it helps: For the clinical laboratory scientist and biosafety officer, the LED Overhead Stirrer IP42-rated, splash-resistant housing protects against accidental spills of infectious materials, while the brushless DC motor (maintenance-free, low noise, explosion-proof) ensures safe operation in volatile environments . For the patient, safe handling of biohazardous materials in clinical and research laboratories reduces the risk of laboratory-acquired infections and ensures sample integrity.

SECONDARY & SUPPORTIVE USES

1. Chemical Synthesis and Reaction Mixing: Used for stirring chemical reactions in organic synthesis, polymerization, and drug discovery workflows .

2. API Dissolution Testing: Supports stirring of dissolution media for active pharmaceutical ingredient (API) release testing in pharmaceutical quality control laboratories .

3. Cosmetic and Personal Care Product Formulation: Used for mixing creams, lotions, gels, and emulsions in cosmetic product development and quality control .

4. Food and Beverage Product Testing: Supports sample homogenization and ingredient mixing for food safety testing and nutritional analysis .

5. Paints, Coatings, and Inks Quality Control: Used for mixing and dispersion of pigments, resins, and additives in paint, coating, and ink manufacturing .

6. Petroleum and Petrochemical Sample Preparation: Supports mixing of oil, fuel, and lubricant samples for viscosity testing and quality analysis .

7. Biopharmaceutical Buffer and Media Preparation: Used for large-volume preparation of cell culture media, buffers, and purification solutions in biopharmaceutical manufacturing .

8. Environmental Sample Processing: Supports mixing of water, soil, and wastewater samples for pollutant analysis and environmental monitoring .

9. Polymer and Plastics Testing: Used for mixing polymer solutions, resins, and plastic additives for materials testing and quality control .

10. Adhesives and Sealants Formulation: Supports mixing of adhesives, epoxies, and sealants for product development and quality testing .

11. Pilot-Scale Production and Scale-Up: Used for small-batch production and scale-up studies in pharmaceutical, chemical, and food manufacturing pilot plants .

12. Debubbling and Degassing of Viscous Liquids: Supports gentle stirring to remove air bubbles from viscous solutions and gels .

13. Quality Control Testing of Raw Materials: Used for mixing of incoming raw material samples for identity, purity, and quality testing .

14. Research and Academic Laboratories: Provides reliable overhead stirring for diverse research applications in chemistry, biology, and materials science .

15. Veterinary Pharmaceutical Formulation: Supports mixing of veterinary drug formulations and medicated feeds for animal health testing .

16. Infection Control Disinfectant Production: Used for mixing bulk disinfectant solutions for healthcare facility infection control programs .

17. Healthcare Product Development: Supports stirring in R&D of new pharmaceutical treatments, vaccines, and healthcare products .

18. High-Volume Buffer Preparation for Clinical Analyzers: Used for preparing large volumes of wash buffers, reagent solutions, and calibrators for automated clinical chemistry and immunoassay analyzers .

19. Solubility Testing for Drug Development: Supports dissolution and mixing in drug solubility studies for new pharmaceutical compounds .

20. Formulation Stability Testing: Used for mixing stability samples in pharmaceutical QC laboratories for shelf-life determination .

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Device Type: An LED digital overhead stirrer (overhead mechanical stirrer) with brushless DC motor, microprocessor control, and LED display, designed for high-viscosity and large-volume mixing, homogenizing, and suspending applications in clinical diagnostic, pharmaceutical, and research laboratories .
Designation: LED Overhead Stirrer, LED Digital Overhead Stirrer, Overhead Mechanical Stirrer, Laboratory Stirrer, DLAB LED Overhead Stirrer , LED Digital Electric Overhead Stirrer .
Key Components:

o Motor: Brushless DC motor (maintenance-free, explosion-proof, low noise) .
o Motor Power: 60W input / 50W output .
o Speed Control: Microprocessor-controlled, 50-2200 rpm .
o Display: LED digital display (actual speed monitoring) .
o Chuck: 0.5-10 mm chuck diameter for various stirrer shafts .
o Through-Shaft Design: Allows easy adjustment of impeller position .
o Safety Features: Overload protection (LED indicator, automatic motor stop), anti-spill slow-start mechanism, IP42 protection rating .

2. TECHNICAL & PERFORMANCE PROPERTIES

Maximum Stirring Capacity: 20 liters (H₂O) .
Maximum Viscosity: 10,000 mPa·s .
Maximum Torque: 40 N·cm .
Speed Range: 50 – 2,200 rpm .
Speed Display: LED digital display .
Speed Display Resolution: ±1 rpm .
Speed Control Accuracy: ±3 rpm .
Motor Type: Brushless DC motor (maintenance-free, low noise, explosion-proof) .
Motor Input Power: 60W .
Motor Output Power: 50W .
Total Power Consumption: 70W .
Chuck Diameter Range: 0.5 – 10 mm .
Voltage/Frequency: 100-240V, 50/60Hz (universal voltage) .
Dimensions (W × D × H): 83 × 220 × 186 mm .
Weight: 2.6 kg .
Protection Class: IP21 or IP42 (splash-resistant) .
Operating Temperature: 5-40°C .
Permissible Ambient Humidity: ≤80% RH .
Overload Protection: LED indicator lights, motor automatically stops .
Motor Protection: LED indicator lights, motor automatically stops .
Stirrer Shaft Compatibility: Through-shaft design accepts various stirrer shafts .
Accessories (Sold Separately): Universal plate stand (base + rod + clamp), various stirrer impellers (propeller, anchor, flat blade, PTFE-coated) .

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Compact benchtop design with durable housing and through-shaft chuck for easy impeller height adjustment .
Display: LED digital display shows actual speed in real-time; overload protection LED indicator .
Control: Microprocessor-controlled with smooth acceleration; anti-spill slow-start mechanism prevents sample splashing; start/stop push-button; speed adjustment via rotary knob .
Operation Modes: Continuous operation (manual control) .
Motor Type: Brushless DC motor provides low noise (maintenance-free), explosion-proof operation, long life, and high reliability .
Chuck: High-capacity chuck (0.5-10 mm) accepts various stirrer shaft diameters; through-shaft design allows vertical positioning adjustment; self-locking chuck for quick shaft attachment .
Portability: Compact footprint (83 × 220 × 186 mm) and lightweight (2.6 kg) for easy benchtop placement .
Maintenance: Brushless DC motor requires no routine maintenance; chuck and shaft should be cleaned after each use; platform cleaning with detergent water or isopropyl alcohol .

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: General laboratory equipment for in vitro diagnostic use; meets applicable laboratory safety standards .
Safety Features: Overload protection (LED indicator and automatic motor stop/standby), anti-spill slow-start mechanism (PC control system start-up), IP21 or IP42 splash-resistant housing, automatic motor stop in case of anti-stall or overload condition .
Electrical Safety: Universal voltage (100-240V, 50/60Hz) for international use; 70W power consumption; earthed power connection recommended .
Motor Type: Brushless DC motor provides maintenance-free, quiet, stable operation with long service life and explosion-proof design .
Compliance: Suitable for use in chemical synthesis, pharmaceutical, physical and chemical analysis, petrochemical, cosmetics, health care, food, biotechnology, and research laboratories .
Operating Conditions: 5-40°C ambient temperature; ≤80% relative humidity; IP21/IP42-rated for splash protection .

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store on clean, dry benchtop; protect from dust and moisture; store stirrer shafts separately when not in use .
Cleaning: Wipe drive unit housing with soft, damp cloth using neutral detergent; 70% ethanol solution may be used for surface disinfection; clean chuck and shaft after each use; do not immerse drive unit in liquid; disconnect power before cleaning; never spray cleaning solution inside the device .
Inspection: Inspect power cord for damage before each use; check chuck for wear or debris; verify shaft is securely tightened before operation; inspect stand stability before mounting .
Operation: Mount drive unit on appropriate stand (sold separately); select appropriate stirrer shaft for sample viscosity and volume; attach shaft to chuck and tighten securely (check chuck tightening before each use); immerse impeller into sample (ensure proper depth); set speed using rotary knob; start motor via push-button; monitor LED display for actual speed and overload indicator .
Speed Selection: Use lower speeds (50-500 rpm) for gentle mixing, delicate samples, and viscous materials; use medium speeds (500-1200 rpm) for general mixing and suspensions; use higher speeds (1200-2200 rpm) for high shear and emulsification .
Shaft Selection: Use propeller-style impellers for general mixing and fluid circulation; use anchor-style impellers for high-viscosity samples; use flat-blade impellers for shear-sensitive applications; use PTFE-coated impellers for corrosive samples; straight propeller, cross blades, paddle, centrifuge style, stainless steel, and PTFE options available .
Stand Use: Ensure stand is properly assembled on stable benchtop; verify clamp is securely tightened; ensure drive unit is level and stable before operation; anti-drop system for secure installation .
Spill Management: If liquid spills onto drive unit, disconnect power immediately, clean thoroughly with appropriate disinfectant, allow to dry before reuse; IP21/IP42 rating provides splash protection but unit should not be submerged .

6. LABORATORY & CLINICAL APPLICATIONS

Primary Application: High-viscosity and large-volume mixing, homogenizing, suspending, and emulsifying of pharmaceutical formulations, clinical samples, chemical reactions, and quality control samples in clinical diagnostic, pharmaceutical, and research laboratories .
Clinical Role: Essential mixing equipment in pharmaceutical QC laboratories, clinical chemistry laboratories, biopharmaceutical manufacturing, analytical chemistry labs, and research facilities requiring high-viscosity or large-volume sample preparation .

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

Electrical Safety: Disconnect power before cleaning or changing shafts; do not immerse drive unit in liquid; keep power cord away from heat sources and sharp edges; use only properly grounded electrical outlets .
Stand Stability: Ensure stand is placed on stable, level surface; verify that clamp is securely tightened; ensure drive unit is properly mounted before operation; anti-drop system for secure installation .
Shaft Security: Ensure stirrer shaft is fully inserted and securely tightened in chuck before starting motor; loose shafts may detach during operation and cause injury or sample loss; self-locking chuck for quick, secure attachment .
Sample Container: Use appropriate container (beaker, vessel) with sufficient diameter and depth for impeller; clamp container to stand to prevent spinning or tipping .
Operating Precautions: Never operate stirrer with impeller out of liquid; this may damage the motor and sample. Ensure impeller is fully immersed (but not touching container bottom) before starting motor. Do not operate above rated viscosity (10,000 mPa·s) or above rated torque (40 N·cm) .
Personal Protective Equipment: Wear appropriate PPE—laboratory coat, safety glasses/face shield, gloves—when operating stirrer; use chemical-resistant gloves when handling corrosive or hazardous materials .
Noise Exposure: At ≤70 dB, noise level is below occupational exposure limits; no hearing protection required .
Cleaning: Clean spills immediately; disinfect chuck and shaft if biological materials are involved; allow to dry before storage; unplug and clean the platform and shaft with detergent water or isopropyl alcohol (never spray cleaning solution inside the device) .
Overload Response: If overload protection activates (LED indicator lights, motor automatically stops), disconnect power, reduce sample viscosity or volume, or use larger impeller; allow unit to cool before restarting; contact service if issue persists .
Training: Only trained laboratory personnel should operate the LED Overhead Stirrer for clinical diagnostic applications .

2. FIRST AID MEASURES

Sample Splash: If biological or chemical sample splashes into eyes, flush with water for 15 minutes, seek medical attention; if on skin, wash with soap and water .
Electrical Malfunction: If unit shows signs of electrical malfunction (smoke, burning smell), disconnect power immediately; do not attempt to operate; contact service personnel .
Mechanical Failure: If unit fails to operate, makes abnormal noise, or vibrates excessively, disconnect power, check shaft for balance or damage, contact service if issue persists .
Overload Shutdown: If unit stops due to overload, reduce sample viscosity or volume, or use larger impeller; restart after motor cools; contact service if issue persists .
Chemical Spill: If corrosive chemicals spill on unit, disconnect power immediately, wipe with appropriate neutralizer, dry thoroughly before reconnecting power .

3. FIRE FIGHTING MEASURES

Flammability: Plastic housing and electrical components may burn; brushless DC motor does not produce sparks like carbon brush motors .
Extinguishing Media: Use carbon dioxide (CO₂) or dry chemical extinguisher for electrical fires .
Fire Response: Unplug unit immediately; do not use water on electrical fire .

LED Overhead Stirrer (OS20-S)

LED Overhead Stirrer

PRIMARY CLINICAL & DIAGNOSTIC USES

1. High-Viscosity Sample Preparation for Pharmaceutical Formulations

Primary Use: Provides an LED digital overhead stirrer with brushless DC motor (60W input / 50W output), speed range 50-2200 rpm, and maximum viscosity handling of 10,000 mPa·s, designed for mixing, homogenizing, and suspending high-viscosity pharmaceutical formulations and active ingredients .

2. Large-Volume Clinical Sample Homogenization

Primary Use: Capable of stirring volumes up to 20 liters (water) with maximum torque of 40 N·cm, enabling large-batch preparation of reagents, buffers, and clinical samples for diagnostic testing workflows .

3. Overload Protection for Sample and Equipment Safety

Primary Use: Features overload protection with LED indicator and automatic motor stop, preventing damage to both the stirrer and the sample during high-viscosity or high-load stirring applications .

4. Anti-Spill Slow-Start Mechanism for Safe Sample Handling

Primary Use: Features anti-spill slow-start mechanism (PC control system start-up with smooth acceleration) that prevents sample splashing and overflow during the initial stirring phase .

5. Safe Handling of Biohazardous Materials

Primary Use: Features IP42 protection rating (splash-resistant), brushless DC motor (explosion-proof, maintenance-free), and safety circuit with automatic stop function, enabling safe handling of biohazardous materials in biosafety cabinets and fume hoods .

SECONDARY & SUPPORTIVE USES

1. Chemical Synthesis and Reaction Mixing: Used for stirring chemical reactions in organic synthesis, polymerization, and drug discovery workflows .

2. API Dissolution Testing: Supports stirring of dissolution media for active pharmaceutical ingredient (API) release testing in pharmaceutical quality control laboratories .

3. Cosmetic and Personal Care Product Formulation: Used for mixing creams, lotions, gels, and emulsions in cosmetic product development and quality control .

4. Food and Beverage Product Testing: Supports sample homogenization and ingredient mixing for food safety testing and nutritional analysis .

5. Paints, Coatings, and Inks Quality Control: Used for mixing and dispersion of pigments, resins, and additives in paint, coating, and ink manufacturing .

6. Petroleum and Petrochemical Sample Preparation: Supports mixing of oil, fuel, and lubricant samples for viscosity testing and quality analysis .

7. Biopharmaceutical Buffer and Media Preparation: Used for large-volume preparation of cell culture media, buffers, and purification solutions in biopharmaceutical manufacturing .

8. Environmental Sample Processing: Supports mixing of water, soil, and wastewater samples for pollutant analysis and environmental monitoring .

9. Polymer and Plastics Testing: Used for mixing polymer solutions, resins, and plastic additives for materials testing and quality control .

10. Adhesives and Sealants Formulation: Supports mixing of adhesives, epoxies, and sealants for product development and quality testing .

11. Pilot-Scale Production and Scale-Up: Used for small-batch production and scale-up studies in pharmaceutical, chemical, and food manufacturing pilot plants .

12. Debubbling and Degassing of Viscous Liquids: Supports gentle stirring to remove air bubbles from viscous solutions and gels .

13. Quality Control Testing of Raw Materials: Used for mixing of incoming raw material samples for identity, purity, and quality testing .

14. Research and Academic Laboratories: Provides reliable overhead stirring for diverse research applications in chemistry, biology, and materials science .

15. Veterinary Pharmaceutical Formulation: Supports mixing of veterinary drug formulations and medicated feeds for animal health testing .

16. Infection Control Disinfectant Production: Used for mixing bulk disinfectant solutions for healthcare facility infection control programs .

17. Healthcare Product Development: Supports stirring in R&D of new pharmaceutical treatments, vaccines, and healthcare products .

18. High-Volume Buffer Preparation for Clinical Analyzers: Used for preparing large volumes of wash buffers, reagent solutions, and calibrators for automated clinical chemistry and immunoassay analyzers .

19. Solubility Testing for Drug Development: Supports dissolution and mixing in drug solubility studies for new pharmaceutical compounds .

20. Formulation Stability Testing: Used for mixing stability samples in pharmaceutical QC laboratories for shelf-life determination .

1. BASIC IDENTIFICATION ATTRIBUTES

Designation: LED Overhead Stirrer, LED Digital Overhead Stirrer, Overhead Mechanical Stirrer, Laboratory Stirrer, DLAB LED Overhead Stirrer , LED Digital Electric Overhead Stirrer .

Key Components:

2. TECHNICAL & PERFORMANCE PROPERTIES

Maximum Stirring Capacity: 20 liters (H₂O) .

Maximum Viscosity: 10,000 mPa·s .

Maximum Torque: 40 N·cm .

Speed Range: 50 – 2,200 rpm .

Speed Display: LED digital display .

Speed Display Resolution: ±1 rpm .

Speed Control Accuracy: ±3 rpm .

Motor Type: Brushless DC motor (maintenance-free, low noise, explosion-proof) .

Motor Input Power: 60W .

Motor Output Power: 50W .

Total Power Consumption: 70W .

Chuck Diameter Range: 0.5 – 10 mm .

Voltage/Frequency: 100-240V, 50/60Hz (universal voltage) .

Dimensions (W × D × H): 83 × 220 × 186 mm .

Weight: 2.6 kg .

Protection Class: IP21 or IP42 (splash-resistant) .

Operating Temperature: 5-40°C .

Permissible Ambient Humidity: ≤80% RH .

Overload Protection: LED indicator lights, motor automatically stops .

Motor Protection: LED indicator lights, motor automatically stops .

Stirrer Shaft Compatibility: Through-shaft design accepts various stirrer shafts .

Accessories (Sold Separately): Universal plate stand (base + rod + clamp), various stirrer impellers (propeller, anchor, flat blade, PTFE-coated) .

3. PHYSICAL & OPERATIONAL PROPERTIES

Construction: Compact benchtop design with durable housing and through-shaft chuck for easy impeller height adjustment .

Display: LED digital display shows actual speed in real-time; overload protection LED indicator .

Control: Microprocessor-controlled with smooth acceleration; anti-spill slow-start mechanism prevents sample splashing; start/stop push-button; speed adjustment via rotary knob .

Operation Modes: Continuous operation (manual control) .

Motor Type: Brushless DC motor provides low noise (maintenance-free), explosion-proof operation, long life, and high reliability .

Chuck: High-capacity chuck (0.5-10 mm) accepts various stirrer shaft diameters; through-shaft design allows vertical positioning adjustment; self-locking chuck for quick shaft attachment .

Portability: Compact footprint (83 × 220 × 186 mm) and lightweight (2.6 kg) for easy benchtop placement .

Maintenance: Brushless DC motor requires no routine maintenance; chuck and shaft should be cleaned after each use; platform cleaning with detergent water or isopropyl alcohol .

4. SAFETY & COMPLIANCE ATTRIBUTES

Regulatory Status: General laboratory equipment for in vitro diagnostic use; meets applicable laboratory safety standards .

Safety Features: Overload protection (LED indicator and automatic motor stop/standby), anti-spill slow-start mechanism (PC control system start-up), IP21 or IP42 splash-resistant housing, automatic motor stop in case of anti-stall or overload condition .

Electrical Safety: Universal voltage (100-240V, 50/60Hz) for international use; 70W power consumption; earthed power connection recommended .

Motor Type: Brushless DC motor provides maintenance-free, quiet, stable operation with long service life and explosion-proof design .

Compliance: Suitable for use in chemical synthesis, pharmaceutical, physical and chemical analysis, petrochemical, cosmetics, health care, food, biotechnology, and research laboratories .

Operating Conditions: 5-40°C ambient temperature; ≤80% relative humidity; IP21/IP42-rated for splash protection .

5. STORAGE & HANDLING ATTRIBUTES

Storage: Store on clean, dry benchtop; protect from dust and moisture; store stirrer shafts separately when not in use .

Cleaning: Wipe drive unit housing with soft, damp cloth using neutral detergent; 70% ethanol solution may be used for surface disinfection; clean chuck and shaft after each use; do not immerse drive unit in liquid; disconnect power before cleaning; never spray cleaning solution inside the device .

Inspection: Inspect power cord for damage before each use; check chuck for wear or debris; verify shaft is securely tightened before operation; inspect stand stability before mounting .