Corning® Stirring Hot Plates
![]() |
|
| Figure 1. Corning® stirring hot plates (Model PC-420D shown) can regulate temperatures up to 550°C while stirring at speeds up to 1150 RPM. | |
| Figure 2. The PC-220 stirring hot plate offers a 4″ x 5″ (10.2 x 12.7cm) Pyroceram® top and closed-loop stirring for consistent and accurate speed. It gets the job done quickly, efficiently, and safely. | |
![]() |
|
| Figure 3. External temperature controller on both digital stirring hot plates (model PC-420D shown with optional temperature controller and support rod) monitor and control solution temperatures in vessels. | |
For over forty years, Corning’s stirring hot plates with Pyroceram® glass-ceramic tops have been a laboratory standard. Now we’ve improved them by adding optional digital temperature and stirring speed displays.
New digital display Pyroceram® top stirring hot plates (Figure 1) are available in two top sizes:
- PC-420D with a 5″ x 7″ (12.7 x 17.8cm) Pyroceram® top
- PC-620D with a 10″ x 10″ (25.4 x 25.4cm) Pyroceram® top
A standard Pyroceram® top stirring hot plate is available in one size:
- PC-220 with a 4″ x 5″ (10.2 x 12.7cm) Pyroceram®top (Figure 2)
New Digital Stirring Hot Plates offer:
- Digital LED temperature display is adjustable in 5°C increments that blinks until set temperature is reached.
- Digital LED speed display gives you better control of your stirring process.
- Microprocessor maintains consistent and repeatable temperature settings from 5°C (if ambient temperature is 0°C or lower) up to 550°C.
- Exclusive closed-loop stirring control monitors and regulates the stirring speed for aqueous, viscous, or semi-solid solutions.
- Automatic ramp up speed adjustment minimizes decoupling.
- Optional external temperature controller (Figure 3; Cat. No. 6795PR) truly controls temperature inside the vessel and eliminates need to closely monitor liquid temperature.
New Digital Stirring Hot Plate Safety Features:
- Bright LED HOT TOP icon lights up when top plate is over 60°C, even when heat control is turned off.
- Optional temperature controller (Figure 3; Cat. No. 6795PR) will shut off unit when controller is not in liquid.
All Corning® Stirring Hot Plates have:
- Low-Profile design that uses less space on bench tops and under hoods.
- Two piece casting design deflects spills away from electronics and includes a built in support rod mount.
- Hot top indicator light blinks a warning if the top is too hot to touch (>60°C; 140°F) – even when the unit is turned off.
- 2 year warranty
- Extra-large knobs with easy-to-read numbers provide better control, even while wearing bulky safety gloves.
- Choice of three voltages to meet power requirements globally (see Ordering Information below).
| Corning Stirring Hot Plate Ordering Information (Click on the appropriate product number under Power Requirements below to go to the catalog for detailed product descriptions and ordering information.) | |||
Model |
PC-220 |
PC-420D |
PC-620D |
Top plate size |
4″ x 5″ | 5″ x 7″ | 10″ x 10″ |
| 10.2 x 12.7cm | 12.7 x 17.8cm | 25.4 x 25.4cm | |
Digital displays |
None | Temperature (°C) & speed (RPM) | Temperature (°C) & speed (RPM) |
Stirring range |
60-100 RPM | 60-1150 RPM | 60-1150 RPM |
Maximum temperature |
550°C | 550°C | 550°C |
Top plate material |
Ceramic | Ceramic | Ceramic |
Power Requirements (Click on the appropriate product number below to go to the catalog for a detailed product description and ordering information.) |
|||
120V/60Hz |
6795-220 | 6795-420D 6795-420KIT* |
6795-620D 6795-620KIT* |
230V/50Hz |
6796-220 | 6796-420D** 6798-420D*** |
6796-620D** 6798-620D*** |
100V/60Hz |
6797-220 | 6797-420D | 6797-620D |
| * Stirring Hot Plate Kit includes digital stirring hot plate with temperature controller, support rods and stir bar retriever. ** The 6796-420D & 6796-620D stirring hot plates are CE marked and approved for use in Europe. *** The 6798-420D & 6798-620D stirring hot plates are not CE marked. |
|||


