Page 21 - BOLA Catalogue

STIRRING AND MIXING
Frequently asked: Why don’t you coat stirrer shafts?
Coating with PTFE only provides a thin plastic layer. This layer can be damaged very easily by aggressive products, friction or rough handling during storage. A possible consequence is that parts of the layer are peeled off.
The BOLA solution: A solid PTFE jacket together with solid stirrer blades. BOLA Stirrer Shafts provide a long durability and an excellent mechanical resistance.
Results of stirring – tested for you
In order to help you choose the suitable stirrer shaft for your application, we have made tests with typical data. These graphs shall give you an indication for the stirring effects of the BOLA Stirrer Shafts.
Suitable chucking diameter of stirrer shafts
Very long stirrer shafts need to have suitable diameters to be stable enough. All BOLA Stirrer Shafts have adequate diameters and lengths. If the chucking diameter of a stirrer shaft is too big, it can mostly be redu- ced by machining. This machining has to be made totally self-centring to avoid eccentricity of the stirrer shaft.
Please contact us if you need a reduced chucking diameter (see page 44).
» Speed: » Volume: » Product:
500 rpm » Temperature: 20°C
2.000 ml » Vessel: glass beaker water
By the way: BOLA offers custom manufacture. From 1 piece. Hotline +49 (0) 93 46-92 86-0 21