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The MS-H-S Circular-top analog magnetic hotplate stirrers have a stirring range of 0 to 1,500rpm and maximum stirring volume up to 20L, and can be operated in environments of 5 to 40 degrees C at 80 percent relative humidity in air. These units can heat samples to 340 degrees C, and automatically stop heating when temperature reaches 340 degrees C to protect the samples. These stirrers have an electronic speed control for constant speed, even during changes in load, for data quality. They have an enclosed housing that conforms to Ingress Protection 42 (IP42), Technischer Überwachungs-Verein for Canadian and US markets (cTUVus), and European Conformity (CE) standards. These models come with a choice of a stainless steel or porcelain plate. The stir control provides slow-speed stirring, consistent speed, and strong magnetic coupling to reduce the risk of stir bar decoupling. These stirrers have a brushless motor for durability. Thermometer supports and clamps are sold separately. These stirrers are designed for general laboratory use to heat and mix liquids simultaneously.
A lab stirrer mixes substances for a variety of academic, research, or industrial applications such as solutions in chemistry and biology and food and beverage production. There are two basic types of stirrers: magnetic or overhead. Magnetic stirrers are ideal for smaller volumes and low-viscosity solutions, have no moving external parts, are considered easier to clean than overhead models, and do not need lubricants which can contaminate the solution being mixed. Magnetic stirrers have a rotating magnetic field that causes a separate magnetic stir bar, when immersed in a solution, to spin and stir the solution. They usually have a plate on a base and either an internal or external controller. Some models have multiple stirring positions to stir more than one vessel at once, and in some the plate is also a hot plate for heating the solution while stirring. They can be submerged in water and used inside closed vessels or systems, such as incubators. Overhead stirrers are ideal for large volumes and high-viscosity solutions in open vessels, and usually have a stirring blade and a drive shaft typically made of stainless steel or a chemically-resistant polymer, a controller, and a motor. This type of stirrer often needs more space than a magnetic stirrer, and can be more difficult to set up and to clean afterwards. However, by changing the stirrer blade shape, they offer control over how a substance is stirred. For example, certain shapes are suitable for high-speed stirring of low viscosity substances, while other shapes are suitable for low-speed stirring of high viscosity substances. Both magnetic and overhead stirrers come in analog and digital models, and a variety of configurations and sizes.
Scilogex manufactures laboratory equipment and supplies. The company, founded in 2008 and headquartered in Berlin, CT, meets International Organization for Standardization (ISO) standards 9000 and 13485.
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