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PTFE-Cylindrical Magnetic Stirring Bars
- PTFE-encapsulated magnetic core (Alnico 5), standard magnetic stirring bar, universal chemical resistance
- Temperature range: -200°C to +250°C
- Very high chemical resistance
| Reference |
Length (mm) |
Diameter (mm) |
| C 350-01 |
2 |
2 |
| C 350-02 |
3 |
3 |
| C 350-03 |
5 |
2 |
| C 350-04 |
6 |
3 |
| C 350-05 |
7 |
2 |
| C 350-06 |
8 |
2 |
| C 350-07 |
8 |
3 |
| C 350-08 |
10 |
3 |
| C 350-09 |
10 |
6 |
| C 350-10 |
12 |
4.5 |
| C 350-11 |
13 |
3 |
| C 350-12 |
15 |
2 |
| C 350-13 |
15 |
4.5 |
| C 350-14 |
15 |
6 |
| C 350-15 |
20 |
3 |
| C 350-16 |
20 |
6 |
| C 350-17 |
20 |
7 |
| C 350-18 |
25 |
5 |
| C 350-19 |
25 |
6 |
| C 350-20 |
25 |
7 |
| C 350-21 |
30 |
6 |
| C 350-22 |
30 |
7 |
| C 350-23 |
35 |
6 |
| C 350-24 |
40 |
7 |
| C 350-25 |
40 |
8 |
| C 350-26 |
40 |
10 |
| C 350-27 |
45 |
8 |
| C 350-28 |
50 |
7 |
| C 350-29 |
50 |
8 |
| C 350-30 |
55 |
12 |
| C 350-31 |
60 |
7 |
| C 350-32 |
60 |
9 |
| C 350-33 |
70 |
9 |
| C 350-34 |
70 |
13 |
| C 350-36 |
110 |
27 |
| C 350-37 |
120 |
12 |
| C 350-38 |
127 |
12 |
| C 350-39 |
155 |
27 |
| C 350-41 |
30 |
10 |
|
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PTFE-Triangular Magnetic Stirring Bars
- PTFE-encapsulated magnetic core (Alnico 5), standard magnetic stirring bar, universal chemical resistance
- Temperature range: -200°C to +250°C
- Very high chemical resistance
- For big vessels, strong turbulence at relatively low speeds. Useful for mixing reagents which resist dissolving or for avoiding any residues at the bottom of the vessels.
| Reference |
Length (mm) |
Edge length (mm) |
| C 357-03 |
12 |
6 |
| C 357-06 |
20 |
8 |
| C 357-09 |
25 |
8 |
| C 357-12 |
25 |
15 |
| C 357-15 |
35 |
10 |
| C 357-18 |
40 |
15 |
| C 357-21 |
50 |
12 |
| C 357-24 |
55 |
15 |
| C 357-27 |
80 |
16 |
| C 357-30 |
130 |
44 |
|
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PTFE-Square Magnetic Stirring Bars
- PTFE-encapsulated magnetic core (Alnico 5), standard magnetic stirring bar, universal chemical resistance
- Temperature range: -200°C to +250°C
- Very high chemical resistance
- For big vessels, strong turbulence at relatively low speeds. Useful for mixing reagents which resist dissolving or for avoiding any residues at the bottom of the vessels.
| Reference |
Length (mm) |
Edge length (mm) |
| C 361-03 |
45 |
14 |
| C 356-06 |
90 |
14 |
|
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PTFE-Egg-Shaped Magnetic Stirring Bars
- PTFE-encapsulated magnetic core (Alnico 5), standard magnetic stirring bar, universal chemical resistance
- Temperature range: -200°C to +250°C
- Very high chemical resistance
- For stirring in round bottom flasks. Shape mimics that of the flasks and assures complete mixing.
| Reference |
Length (mm) |
Diameter (mm) |
Suitable for round bottom flasks (DIN 12 348) ml |
| C 358-02 |
20 |
10 |
25 |
| C 358-04 |
25 |
12 |
50 |
| C 358-06 |
30 |
15 |
100 |
| C 358-08 |
35 |
15 |
250 |
| C 358-10 |
40 |
20 |
500 |
| C 358-12 |
50 |
20 |
1000 |
| C 358-14 |
65 |
20 |
4000 |
| C 358-16 |
70 |
20 |
10000 |
|
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PTFE-Beakerliner
- PTFE-encapsulated magnetic core (Alnico 5) axially mounted in a guide cage made of PTFE, universal chemical resistance.
- Temperature resistance: from -200°C to +250°C
- Chemical resistance: very good
- Vacuum: suitable
- autoclave: 121°C
- Applications: No shear action on the bottom of the beaker, smooth running in glass beakers also on an uneven bottom. The cage acts like a baffel and thus provides optimum mixing results.
| Reference |
For beakers (ml) |
Total O.D. (mm) |
Height (mm) |
stirring bar length (mm) |
| C 362-08 |
250, 400 |
67 |
21 |
50x8 |
| C 362-12 |
600, 800, 1000 |
74 |
29 |
60x9 |
| C 362-16 |
2000 |
103 |
32 |
80x10 |
| C 362-20 |
3000, 5000 |
1125 |
48 |
106x25 |
|
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PTFE Solo Stirrer Shafts
- Material: PTFE (Polytetrafluorethylen)
- Temperature range: -200°C to +250°C
- Very high chemical resistance
- PTFE Polytetrafluoroethylene -jacketed stainless steel shaft with fused lower end
| Reference |
Length (mm) |
Shaft diameter (mm) |
Chucking diameter (mm) |
| C 472-08 |
350 |
8 |
6.5 |
| C 472-20 |
600 |
8 |
6.5 |
| C 474-08 |
350 |
10 |
8 |
| C 474-20 |
600 |
10 |
8 |
| C 474-30 |
800 |
10 |
8 |
| C 474-34 |
1000 |
10 |
8 |
| C 474-40 |
1200 |
10 |
8 |
| C 476-40 |
1200 |
16 |
14 |
| C 476-60 |
1600 |
16 |
14 |
|
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Double-Moon-Shaped Stirrer Shafts, PTFE
- Temperature range: -200°C to +250°C
- Very high chemical resistance
| Reference |
Length (mm) |
Shaft diameter (mm) |
Chucking diameter (mm) |
For ground joint NS |
Dim. A, B, C, D (mm) |
| C 374-12 |
350 |
10 |
8 |
29/32 |
90 - 24 - 3 - 140 |
| C 374-14 |
450 |
10 |
8 |
29/32 |
90 - 24 - 3 - 140 |
| C 374-18 |
600 |
10 |
8 |
29/32 |
90 - 24 - 3 - 140 |
|
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Moon-Shaped Stirrer Shafts, PTFE
- Temperature range: -200°C to +250°C
- Very high chemical resistance
| Reference |
Length (mm) |
Shaft diameter (mm) |
Chucking diameter (mm) |
For ground joint NS |
Dim. A, B, C (mm) |
| C 376-02 |
350 |
8 |
6.5 |
24/29 |
65 - 18 - 3 |
| C 376-04 |
450 |
8 |
6.5 |
24/29 |
65 - 18 - 3 |
| C 376-06 |
350 |
8 |
6.5 |
29/32 |
90 - 24 - 3 |
| C 376-08 |
450 |
8 |
6.5 |
29/32 |
90 - 24 - 3 |
| C 376-10 |
600 |
8 |
6.5 |
29/32 |
90 - 24 - 3 |
| C 376-12 |
350 |
10 |
8 |
29/32 |
90 - 24 - 3 |
| C 376-14 |
450 |
10 |
8 |
29/32 |
90 - 24 - 3 |
| C 376-16 |
510 |
10 |
8 |
29/32 |
90 - 24 - 3 |
| C 376-18 |
600 |
10 |
8 |
29/32 |
90 - 24 - 3 |
| C 376-19 |
1000 |
10 |
8 |
29/32 |
90 - 24 - 3 |
| C 376-20 |
600 |
16 |
14 |
45/40 |
125 - 35 - 3 |
| C 376-22 |
800 |
16 |
14 |
45/40 |
125 - 35 - 3 |
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Centrifugal Stirrer Shafts, PTFE
- Temperature range: -200°C to +250°C
- Very high chemical resistance
- The stirrer shaft can be used for stirring in narrow mouth vessels or in vessels with ground joint opening (starting at size NS 24).
| Reference |
Length (mm) |
Shaft diameter (mm) |
Chucking diameter (mm) |
Dim. A, B, C (mm) |
| C 377-04 |
350 |
6 |
4 |
50 - 17 - 2 |
| C 377-08 |
350 |
8 |
6.5 |
90 - 17 - 2 |
| C 377-10 |
450 |
8 |
6.5 |
90 - 17 - 2 |
| C 377-12 |
350 |
10 |
8 |
90 - 17 - 2 |
| C 377-14 |
450 |
10 |
8 |
90 - 17 - 2 |
| C 377-16 |
600 |
10 |
8 |
90 - 17 - 2 |
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Propeller Stirrer Shafts, PTFE
- Temperature range: -200°C to +250°C
- Very high chemical resistance
- three 45° angled round or angular blades
- The product is sucked bottom-up, good axial flow with low shear force
| Reference |
Length (mm) |
Shaft diameter (mm) |
Chucking diameter (mm) |
Dim. A, B, C (mm) |
Form |
| C 378-04 |
250 |
6 |
4 |
50 - 18 - 1.5 |
square |
| C 378-06 |
350 |
6 |
4 |
50 - 18 - 1.5 |
square |
| C 378-08 |
450 |
6 |
4 |
50 - 18 - 1.5 |
square |
| C 378-12 |
350 |
8 |
6.5 |
75 - 18 - 3 |
round |
| C 378-14 |
450 |
8 |
6.5 |
75 - 18 - 3 |
round |
| C 378-16 |
600 |
8 |
6.5 |
75 - 18 - 3 |
round |
| C 378-18 |
450 |
10 |
8 |
75 - 18 - 3 |
round |
| C 378-20 |
600 |
10 |
8 |
75 - 18 - 3 |
round |
| C 378-22 |
800 |
10 |
8 |
75 - 18 - 3 |
round |
|
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Gassing Stirrer with 4 Blades, PTFE
PTFE-jacketed stainless steel shaft, propeller with four blades completely made of PTFE. Clockwise rotation of the shaft produces a vacuum behind the stirrer blades. By this vacuum, the gas is transported from the gas compartment through the hollow shaft and into the product. The rotation speed depends on the fluid level and the immersion depth: e. g. 430 rpm are necessary at 150mm.
| Reference |
Length (mm) |
Shaft diameter (mm) |
Chucking diameter (mm) |
Dim. A, B, C, D (mm) |
| C 488-08 |
484 |
10 |
8 |
72 - 128 - 20-187 |
| C 488-14 |
559 |
10 |
8 |
72 - 128 - 20-272 |
| C 388-20 |
657 |
10 |
8 |
72 - 128 - 20-387 |
|
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Magnetic Stirrer Head, PTFE
Stirrer head for PTFE-jacketed stirrer shafts from BOLA. Consisting of capsuled drive shaft (stainless steel) with ball bearings, rotor and lower bearing made of PTFE/PEEK and a hollow shaft made of borosilicate glass. Requires little space due to compact construction
Product advantages
- gastight stirrer head for perfect vacuum
- stirrer shaft's height adjustable, approx. 40 mm
- also suitable for shortened stirrer shafts
- powerful transmission of up to 90 Ncm
- excellent chemical resistance
- all products which are exposed to the medium do not contain any metals
- no grease required / save to run dry
- high speed of up to max. 1.500 rpm
| Reference |
For stirrer shaft dia.(d) mm |
Height (H) mm |
Size NS |
(L2) Insertion length of shaft mm |
Drive shaft O.D. (D) mm |
| C 520-24 |
8 |
145 |
29/32 |
95 |
50 |
| C 520-28 |
10 |
145 |
29/32 |
95 |
50 |
| C 520-48 |
10 |
145 |
45/40 |
95 |
50 |
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