DIGITAL OVERHEAD STIRRER

A Digital Overhead Stirrer is a motor-driven laboratory mixing instrument designed for controlled stirring, blending, homogenizing and dispersion of liquid samples. Unlike a magnetic stirrer, an overhead stirrer drives a stirring shaft or impeller directly from above the sample, making it particularly useful for larger volumes and higher-viscosity materials. Digital models provide electronic speed adjustment and a display for monitoring stirring speed. Depending on the model, additional functions can include timer control, torque compensation, overload protection, reversible rotation and constant-speed regulation as sample viscosity changes. The equipment is widely used in pharmaceutical laboratories, chemical synthesis, biotechnology, cosmetics, food laboratories, research laboratories, quality-control laboratories and physical/chemical analysis. Key Features Digital display for monitoring stirring speed Adjustable electronic speed control Overhead motor-driven stirring system Suitable for low-, medium- and high-viscosity liquids, depending on model Accepts interchangeable stirring shafts/impellers Adjustable chuck for securing the stirring shaft Stable laboratory stand and clamp configuration Designed for continuous and consistent mixing Smooth-start functionality available on some models Torque compensation available on advanced models Overload and motor protection available on some models Suitable for laboratory and research applications Technical Specifications Specification Typical/Applicable Configuration Product Digital Overhead Stirrer Equipment Type Laboratory Mechanical Stirrer Display Digital LED/LCD Speed Control Variable / Digital Typical Speed Range Approx. 50–2,200 rpm* Stirring Capacity Model dependent; commonly 5–40 L* Maximum Viscosity Model dependent Maximum Torque Model dependent Motor DC/Brushless DC depending on model Stirring Direction Clockwise; reversible operation on selected models Timer Available on selected models Stirring Shaft Stainless steel, model dependent Impeller Propeller/paddle/cross-blade depending on configuration Support Vertical laboratory stand Speed Display Digital Overload Protection Available on applicable models Power Supply Commonly 100–240 V AC, 50/60 Hz Installation Benchtop Primary Use Laboratory mixing and stirring