Analog Stirrer Only

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Stir solutions from 100 to 1500 rpm with a strong motor/magnet assembly on a flat, white solid ceramic or aluminum sheet metal surface.


Data Sheet


Each Torrey Pines Scientific® stirrer is made with a cast aluminum chassis that is painted with chemically resistant epoxy paint. The chassis is designed to keep spills out of the case. Stirrer controls are solid state and have an OFF detent fully counter-clockwise and a full 270 degrees of control clockwise from the off position.

Includes products: ST1, ST11, ST15, ST19



  • Stir from 100–1500 rpm on each stirring position with an individual control
  • Stir aqueous solutions in 5-800 ml beakers on the Model ST15 with an individual control for each stirring position
  • Stir aqueous solutions in 9-400 ml beakers on the Model ST19 with an individual control for each stirring position
  • Stir 2 liters water on ST1
  • Stir 4 liters water on ST11
  • Plate size on the ST1 is 6” (15.24 cm) x 6” (15.24 cm)
  • Plate size on ST11 is 12” (30.48 cm) x 12” (30.48 cm
  • Plate size on ST15 and ST19 is 12” (30.48 cm) x 12”(30.48 cm)
  • Solid ceramic surface for excellent chemical resistance
  • Fused for safety
  • Rugged cast aluminum chassis
  • 12-month warranty
  • ETL, CSA and CE certified


  • Stir solutions for pH measurements
  • Titrations
  • Mixing soluble solids or powders for analysis
  • Dissolve solids in solutions
  • Mixing polishing compounds
  • ptfe coated stir bars coupled with strong magnets under the plate surface are used for mixing aggressive solutions that would attack a stainless steel overhead mixer paddles
  • Mix most any solution in the lab without an overhead stirrer

Full Product Specifications

Speed range unloaded100–1500 rpm
Maximum load, aqueousVaries by Model: 5-800ml beakers (ST15); 9-400ml beakers (ST19); 2 L (ST1); 10L (ST11)
Magnet strength20 lbs
Weight capacity on heater surfaceOver 50 lbs (22.5 kg)
Operating voltages available100 VAC/50 Hz, 115 VAC/60 Hz, 220 VAC/60 Hz and 230 VAC/50 Hz
Power consumptionVaries by Model: 300 watts (ST15); 540 watts (ST19); 100 watts (ST11, and ST1)
Current Draw: 100/115 VAC Models2.5 amps (ST15); 4.5 amps (ST19);
Current Draw: 220/230 VAC Models1.5 amps (ST15); 2.25 amps (ST19);
Unit Dimensions
ST110” (25.4cm) deep, 7” (17.78 cm) wide and 4.5”(11.43 cm) tall
ST1118” x 12.5” (without line cord plugged in) x 5.5”
ST15 and ST1918” deep without line cord plugged in x 12.5” wide x 5.5” high
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