Cope-LLG Catalogue 2018

479 4. Stirring, Shaking, Mixing Overhead stirrers/Stirrers GENERAL CATALOGUE EDITION 20 E & OE. BuddeMix Stirring System 1 - 4 This novel stirring system has been conceived to mix low viscosity fluids as well as highly viscous media at slow speeds. Its special design creates inherent dynamic currents to produce perfectly homogeneous mixing results in very little time. Additional components like baffles, bottom bearings, etc. are not needed. Advantages at a glance: - suitable for low to highly viscous fluids - stirs media containing solids and fibres without any difficulty - gentle, low-shear stirring, due to slow stirring speed - constant product temperature, with no heating effect - short mixing times as the entire contents of the container are agitated - no air addition, no foaming - no baffles required - low gear wear due to balanced forces - minimal power consumption thanks to low speeds and short operation times - easy cleaning - material no. 1.4404 Particularly for potentially explosive atmospheres: - a single stirring zone, near to the container base, ensures easy mixing of settled residues, e.g. in flow-through mixing containers - no baffles required, thus no additional sources of ignition 1 2 Type Ø agitator Ø agitator shaft Length Material No. PK Cat. No. mm mm mm BuddeMix 1 BuddeMix 2 BuddeMix 3 BuddeMix 4 60 80 120 150 8 10 10 10 350 350 550 850 1.4404 1.4404 1.4404 1.4404 1 1 1 1 9.779 331 9.779 332 9.779 333 9.779 334 Customised shaft length possible. Fine polishing Ra 0.6 to 0.8 µm and/or material certificate available on request. 1 2 Stirring rotors made of PTFE The stirrer shafts consist of a PTFE-jacketed, stainless steel shaft and a stirrer paddle made of solid PTFE. The stainless steel core assures stability of the stirrer shaft and allows safe attachment of the stirrer chuck. Thanks to the thick PTFE coat and the paddle made of solid PTFE, the medium will only come into contact with PTFE. High chemical resistance makes it almost universally suitable. PTFE is extremely nonstick so that residues are repelled from shaft and paddle. The stirrer shafts are similar in size to (KPG) glass stirring rods and are therefore interchangeable easily. Operating temperature: -200 °C to +250 °C Additional sizes and accessories are available on request. Information on the mixing effects of the different stirring geometries can be found in the descriptions of the stainless steel stirring rotors. Propeller, 3 blades, PTFE The blades are inclined at 45 °. Recommended for medium to high speed operations. 3 Ø agitator Ø agitator shaft To fit chuck diam. Length Blades PK Cat. No. mm mm mm mm 50 75 75 75 140 140 200 6 8 10 10 10 10 16 4.0 6.5 8.0 8.0 8.0 8.0 14.0 450 350 450 800 600 800 1000 round angular angular angular round round round 1 1 1 1 1 1 1 9.197 138 9.197 130 9.197 140 9.197 149 9.197 194 9.197 195 6.244 067 3 9.197 194 Crescent-shaped stirring rotors, PTFE The semi-circular shape of the paddle is ideal for mixing in round-bottom flasks. The pivoting blade allows insertion into vessels with narrow necks and/or ground joints. 4 BOLA Ø agitator Ø agitator shaft To fit chuck diam. Length PK Cat. No. mm mm mm mm 65 90 90 90 90 90 125 8 8 10 10 10 10 16 6.5 6.5 8.0 8.0 8.0 8.0 14.0 350 450 350 450 510 600 800 1 1 1 1 1 1 1 9.197 121 9.197 122 9.197 127 9.197 124 9.197 128 9.197 125 9.197 126 4