The Wincom JJ-1B Large Power Electric Stirrer is a heavy-duty, motor-driven overhead laboratory mixer engineered by Wincom Company Ltd.. It is primarily designed for high-viscosity and high-capacity liquid mixing in scientific research, universities, and industrial chemical plants.
Key Technical Specifications
- Stirring Capacity: Up to 3,000 ml (3 Litres).
- Motor Technology: Employs a brushless DC motor to deliver high mechanical force with low noise levels.
- Dual-Speed Ranges:
- Speed I (Low Speed / High Torque): 60–500 rpm.
- Speed II (High Speed): 240–2000 rpm (or up to 3000 rpm depending on precise configuration).
- Power Variants: Available in higher power options including 100W and 200W models.
- Speed Regulation: Built-in stepless speed governor with a voltage stabilizing system to maintain a constant rotation speed.
- Display & Control: Features a digital display for real-time, precise RPM monitoring.
Performance Advantages
- Constant Speed Stability: The mechanical force and stabilizing circuitry prevent speed drops when the solution thickens during chemical reactions.
- Overhead Mixing Mechanism: Immerses a stainless steel stirring rod directly into the container from above, making it much more effective for high-volume mixtures than standard magnetic stirrers.
- Industrial Durability: Built to handle continuous, long-term mixing of complex liquid-phase chemical reactions safely.
Primary Applications
- Chemical Engineering: Mixing reactant fluids and polymer solutions.
- Pharmaceuticals & Cosmetics: Emulsifying heavy creams, lotions, and raw medicinal ingredients.
- Biological Laboratories: Homogenizing large-batch cultures or viscous media.

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