6 Stirring operation
50134805_03.2012
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Thermo Scientific
10 mm
10 mm
Figure 3:
Twin magnetic stirring bar (left, Order No. 50087868).
Cross-section through stirring bar suspended from top (centre), or fixed at the
bottom of the stirring vessel (right).
In addition, a magnetic stirring bar incorporating a bearing can be supplied as an
accessory item (Figure 4). It can be kept in place safely inside the stirring vessel
.
Only
use this stirring bar at lower or medium rotation speed.
Figure 4: Magnetic stirring bar with bearing (Order No. 50087869)
To improve the slide characteristics of the magnetic stirring bar, you can place a stirring
disc into the stirring vessel (Figure 6). It consists of a flat glass or PTFE disc and a
screen. The latter prevents the magnetic stirring bar from escaping in a sideways
direction. When using the stirring disc, take care to note that it will not rotate of its own
accord. Affix it to the bottom of the vessel, for example.
Figure 5: Stirring disc with screen
