Stir up to 20 liters without heating Based on our proven magnetic stirrer series with heating function, the Hei-PLATE Mix 20 l was specially developed for applications with thermolabile substances. Because this model has no heating. The Hei-PLATE Mix 20 l magnetic stirrer without heating function is ideal for applications up to 20 liters and can gently stir your solution in a speed range of 100 – 1,400 rpm. In addition, the rotation speed ramps up slowly until it has reached the desired value. This prevents splashes, uneven starts, or jumps of the stirring rod. The patented Kera-Disk ® plate made of aluminum with a ceramic coating is chemical-resistant, scratch-resistant and has a diameter of 145 mm. This unique size makes it suitable for use with many accessories and samples on a small footprint. Stir up to 20 liters without heating Based on our proven magnetic stirrer series with heating function, the Hei-PLATE Mix 20 l was specially developed for applications with thermolabile substances. Because this model has no heating. The Hei-PLATE Mix 20 l magnetic stirrer without heating function is ideal for applications up to 20 liters and can gently stir your solution in a speed range of 100 – 1,400 rpm. In addition, the rotation speed ramps up slowly until it has reached the desired value. This prevents splashes, uneven starts, or jumps of the stirring rod. The patented Kera-Disk ® plate made of aluminum with a ceramic coating is chemical-resistant, scratch-resistant and has a diameter of 145 mm. This unique size makes it suitable for use with many accessories and samples on a small footprint.