The Wincom 79-1 Magnetic Stirrer Hotplate is a compact, entry-level desktop laboratory instrument engineered for simultaneous liquid mixing and controlled heating. Manufactured by Wincom Company Ltd., it is extensively utilized across medical, educational, and industrial research environments for preparing low-viscosity solutions.
Core Technical Specifications
The product’s performance attributes and operational capabilities include:
- Stirring Capacity: Up to 1000 ml (1 Liter) maximum volume.
- Speed Range: Stepless adjustable speed from 0 to 1400 rpm (some regional variants support up to 2400 rpm).
- Temperature Control: Room Temperature (RT) up to 100°C.
- Heating Power: 200W to 250W depending on the specific power supply configuration.
- Stirring Power: 25W energy consumption for the magnetic motor mechanism.
- Working Plate: Constructed from aluminum or stainless steel with a diameter of approximately Ф120mm.
- Operating Voltage: Compatible with dual configurations of 110V or 220V AC power.
- Physical Weight: Compact layout weighing roughly 1.5 kg.
Top Benefits & Design Highlights
- Dual Control Interface: Separate analog turning knobs independently manage heating intensity and magnetic rotation speeds.
- Stepless Speed Tuning: Allows a smooth, continuous acceleration curve to prevent fluid splashing or uncoupling the magnetic stir bar.
- Transparent Magnetism: The rotating magnetic field easily passes through standard glass laboratory beakers and flasks without energy loss.
- Reliable Build Quality: Equipped with structural steel or aluminum housing to handle everyday heat exposure and minor chemical spills.
Usage & Safety Guidelines
- Stir Bar Placement: Drop the PTFE-coated magnetic stir bar into the liquid container before setting it centered onto the hotplate surface.
- Beating Troubleshooting: If the stir bar jumps erratically or stops spinning, turn the speed knob back to zero, re-center the beaker, and slowly raise the speed again.
- Viscosity Limitations: This hardware is optimized for water-like fluids and will struggle with heavy suspensions or high-viscosity oils.
- Lifespan Maintenance: Operating the motor at medium-range speeds rather than maximum thresholds significantly extends the device’s operational lifespan.
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