Across International 350C 2000RPM 1.5-Gallon PID Magnetic Stirrer w/ 9" Heated Plate

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Sale price$539.00 USD

A magnetic stirrer or magnetic mixer is a laboratory device that employs a rotating magnetic field to cause a stir bar (also called "flea") immersed in a liquid to spin very quickly, thus stirring it. The rotating field may be created either by a rotating magnet or a set of stationary electromagnets, placed beneath the vessel with the liquid. Since glass does not affect a magnetic field appreciably (it is transparent to magnetism), and most chemical reactions take place in glass vessels (i.e. see beaker (glassware) or laboratory flasks), magnetic stir bars work well in glass vessels. On the other hand, the limited size of the bar means that magnetic stirrers can only be used for relatively small experiments. They also have difficulty dealing with viscous liquids or thick suspensions. For larger volumes or more viscous liquids, some sort of mechanical stirring is typically needed.

Magnetic stirrers are often used in chemistry and biology. They are preferred over gear-driven motorized stirrers because they are quieter, more efficient, and have no moving external parts to break or wear out (other than the simple bar magnet itself). Because of its small size, a stirring bar is more easily cleaned and sterilized than other stirring devices. They do not require lubricants which could contaminate the reaction vessel and the product. They can be used inside hermetically closed vessels or systems, without the need for complicated rotary seals. Magnetic stirrers may also include a hot plate or some other means for heating the liquid.



 Electrical requirements
 110V 60Hz 1-Phase, 750 watts
 Temperature range
¬†Ambient to 350¬įC
¬†Temperature stability ¬†¬Ī2% between center of fluid in beaker and temp displayed on hot plate
         (tested with Duratherm S in a 5L beaker over a period of 2 hours)
 Heating plate  Diameter: 9 inches
 Material: ceramic coated aluminum
 Stirring  Min. speed: 110 rpm, max. speed: 2000 rpm
 Motor power: 40 watts
 Motor type: brush-less DC motor
 Max. stirring volume: 1.5 gallon (water as media)
 Controller  PID control with digital temperature and rotation speed display
 External thermocouple
 Type: PT100
 Cable length: 35 inches
 Stainless steel probe length: 11 inches
 Stainless steel probe diameter: 5 mm
 Dimensions (WxDxH)  Unit: 9 x 14.5 x 4.5 inches, shipping: 16 x 20 x 9 inches
 Weight  Unit: 13 lbs, shipping: 25 lbs
 Safety  Thermocouple failure protection
 Built-in fuse protection
 Certification  ETL tested to UL and CSA standards (optional), CE (standard)
 Warranty  One year
Standard Packages
Standard package


 Part description


Part image

 Ai HP9 digital heated magnetic stirrer
1 set
 External temperature probe 1 pc
 Internal temperature plug 1 pc  
 Boss head
1 pc  
 Stainless steel support rod (16 inches)
1 pc  
 PTFE coated stir bar
2 pcs  
 Magnetic stir bar remover, PTFE coated 1 pc
 4 prong stainless steel clamp opens to 3 1/2" 1 pc  
 Users manual
1 pc

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