Page 58 - BOLA Catalogue

STIRRING AND MIXING
BOLA Magnetic Stirrer Heads (G-MRK)
GLASS
Product description:
Perfect combination of drive shaft with ball bearings, rotor and lower bearing made of PTFE/ PEEK and a conductor made of borosilicate glass. Requires little space due to compact cons- truction. No leakage or memory effects due to non-porous, welded rotor. This rotor holds the stirrer shaft by means of three stud screws which are fixed in the counterbores of the stirrer shaft. This provides optimum power transmission and a safe fixing. The 6 mm square can be fixed into the stirrer coupling or into the agitator.
Product advantages:
» powerful transmission
for ground joint size 19/26: 15 Ncm
for ground joint size 29/32 and 45/40: 50 Ncm
» no grease required
» all products which are exposed to the medium do not contain any metals » high speed of up to max. 1.500 rpm
» high working temperatures up to +250°C are possible
» excellent chemical resistance
» safe to run dry
» long durability
» space-saving drive shaft O.D.‘s
for ground joint size 19/26: 28 mm
for ground joint size 29/32 and 45/40: 38 mm
Applications:
Ideal for reactor lids with a center ground joint, suitable for stirrer shafts made of glass or stainless steel with counterbores (see page 44) for a safe fixing into the rotor.
» L1 Internal height from the top of the ground joint to the vessel bottom. » L3 maximum total length of stirrer shaft = L1+L2
BEST
SELLER
Stirrer shaft Ø
dmm
Height
Hmm
Conductor
NS
Top of ground joint to top of stirrer shaft mm L2
Insertion length of shaft mm L4
Cat.No.
6
90
19/26
20
63
C 512-08
8
148
29/32
33
97
C 502-08
10
148
29/32
33
97
C 502-16
58
www.bola.de
Material: Temperature resistance: Chemical resistance:
PTFE, Glass from -100 °C to +240 °C +++ universal
H
L2
L4
NS
d
L1
D
L3