0102030405
China Strong Lab PTFE Coated Magnetic Stir Bar - High Quality Supplier from Reliable Factory
PTFE Magnetic Stir Bar
- Polytetrafluoroethylene material
- Super strong magnetic force
- Non stick lubrication
- Complete specifications
Type A
Type B
Type C
Cross Shape
Gear Shape
H Shape
S Shape
Ball Shape
Color Type
PTFE Magnetic Stir Bar Set
Product Name:
PTFE Magnetic Stir Bar
Product Type:
Type A(Egg Shape), Type B(Cylindrical Shape with Centre Pivot), Type C(Cylindrical Shape), Cross Shape, Gear Shape, H Shape, S Shape, Ball Shape, Color Type, Set A, Set B, Set C.
Product Material:
PTFE+Magnet（N35）
Product Introduction:
PTFE has good chemical resistance and can tolerate almost all chemical solvents. Appearance pure white, high temperature resistance -200~+250℃, short-term resistance to 300℃ on electric heating plate: low temperature resistance:-196°C can maintain an elongation of 5%, it needs to be used on asbestos mesh and should not be directly exposed to open flames. High lubrication: the lowest friction coefficient in solid materials, non adhesive: does not adhere to any substance; Strong self lubrication: The friction coefficient in solid materials is 0.04.
Product Features:
The PTFE Magnetic Stir Bar is made of refined PTFE and high-quality permanent magnetic steel, which has the advantages of wear resistance, high temperature resistance, chemical corrosion resistance, non toxicity, strong stirring force, stable operation, excellent manufacturing, novel style, scientific and beautiful appearance.
Product Show
- Strong magnetic force
- High lubrication, non stick and non damaging to glass
- Corrosion resistance
Type A Show
Type B Show
Type C Show
Cross Shape Show
Gear Shape Show
H Shape Show / S Shape Show
Color Tape Show / Ball Shape Show
Type A Set Show
Type B Set Show
Type C Set Show
Packing Show
Magnetic Stir Bar Specs
| Item | Description | Picture | PN | Spec | Dia (mm) | Length (mm) | Weight (g) |
| 1 | PTFE Magnetic Stir Bar Type A (Egg Shape) |
|
B00101 | A3*5 | 3 | 5 | 0.06 |
| B00102 | A5*7 | 5 | 7 | 0.3 | |||
| B00103 | A4*8 | 4 | 8 | 0.2 | |||
| B00104 | A5*10 | 6 | 8 | 0.4 | |||
| B00105 | A6*8 | 6 | 8 | 0.5 | |||
| B00106 | A6*10 | 6 | 10 | 0.6 | |||
| B00107 | A7*15 | 7 | 15 | 1.2 | |||
| B00108 | A8*20 | 8 | 20 | 2.2 | |||
| B00109 | A9*20 | 9 | 20 | 3 | |||
| B00110 | A9*25 | 9 | 25 | 3.5 | |||
| B00111 | A10*25 | 10 | 25 | 4.3 | |||
| B00112 | A10*30 | 10 | 30 | 5.3 | |||
| B00113 | A12*35 | 12 | 35 | 8.6 | |||
| B00114 | A13*35 | 13 | 35 | 9.6 | |||
| B00115 | A15*40 | 15 | 40 | 13.8 | |||
| B00116 | A15*45 | 15 | 45 | 15.4 | |||
| B00117 | A17*50 | 17 | 50 | 21.5 | |||
| B00118 | A18*60 | 18 | 60 | 31.9 | |||
| B00119 | A18*70 | 18 | 70 | 40 | |||
| B00120 | A25*70 | 25 | 70 | 66.4 | |||
| B00121 | A25*100 | 25 | 100 | 90 | |||
| 2 | PTFE Magnetic Stir Bar Type B (Cylindrical Shape with Centre Pivot) |
|
B00201 | B3*6 | 3 | 6 | 0.15 |
| B00202 | B4*8 | 4 | 8 | 0.4 | |||
| B00203 | B4*10 | 4 | 10 | 0.4 | |||
| B00204 | B5*10 | 5 | 10 | 0.6 | |||
| B00205 | B5*15 | 5 | 15 | 1.1 | |||
| B00206 | B5*20 | 5 | 20 | 1.44 | |||
| B00207 | B6*12 | 6 | 12 | 0.96 | |||
| B00208 | B6*15 | 6 | 15 | 1.5 | |||
| B00209 | B6*20 | 6 | 20 | 2.2 | |||
| B00210 | B6*25 | 6 | 25 | 2.5 | |||
| B00211 | B6*30 | 6 | 30 | 3.5 | |||
| B00212 | B7*20 | 7 | 20 | 2.6 | |||
| B00213 | B7*25 | 7 | 25 | 3.1 | |||
| B00214 | B7*30 | 7 | 30 | 4 | |||
| B00215 | B7*35 | 7 | 35 | 4.7 | |||
| B00216 | B8*15 | 8 | 15 | 2.3 | |||
| B00217 | B8*20 | 8 | 20 | 3.5 | |||
| B00218 | B8*25 | 8 | 25 | 4.4 | |||
| B00219 | B8*30 | 8 | 30 | 5.1 | |||
| B00220 | B8*35 | 8 | 35 | 6.6 | |||
| B00221 | B8*40 | 8 | 40 | 7.6 | |||
| B00222 | B8*45 | 8 | 45 | 7.6 | |||
| B00223 | B8*50 | 8 | 50 | 8.9 | |||
| B00224 | B9*25 | 9 | 25 | 5 | |||
| B00225 | B9*30 | 9 | 30 | 6.2 | |||
| B00226 | B9*35 | 9 | 35 | 7.6 | |||
| B00227 | B9*40 | 9 | 40 | 9.9 | |||
| B00228 | B9*45 | 9 | 45 | 10 | |||
| B00229 | B9*50 | 9 | 50 | 10.7 | |||
| B00230 | B9*55 | 9 | 55 | 11.2 | |||
| B00231 | B9*65 | 9 | 65 | 14.2 | |||
| B00232 | B10*40 | 10 | 40 | 11.2 | |||
| B00233 | B10*50 | 10 | 50 | 14.2 | |||
| B00234 | B10*60 | 10 | 60 | 14.4 | |||
| B00235 | B10*70 | 10 | 70 | 19.7 | |||
| B00236 | B10*80 | 10 | 80 | 22.4 | |||
| B00237 | B10*100 | 10 | 100 | 27.8 | |||
| B00238 | B12*55 | 12 | 55 | 23.2 | |||
| 3 | PTFE Magnetic Stir Bar Type C (Cylindrical Shape) |
|
B00301 | C3*5 | 3 | 5 | 0.11 |
| B00302 | C3*6 | 3 | 6 | 0.14 | |||
| B00303 | C3*7 | 3 | 7 | 0.15 | |||
| B00304 | C3*9 | 3 | 9 | 0.23 | |||
| B00305 | C3*10 | 3 | 10 | 0.3 | |||
| B00306 | C3*12 | 3 | 12 | 0.3 | |||
| B00307 | C3*15 | 3 | 15 | 0.35 | |||
| B00308 | C4*8 | 4 | 8 | 0.3 | |||
| B00309 | C4*10 | 4 | 10 | 0.5 | |||
| B00310 | C5*15 | 5 | 15 | 1 | |||
| B00311 | C5*20 | 5 | 20 | 1.2 | |||
| B00312 | C6*10 | 6 | 10 | 0.9 | |||
| B00313 | C6*15 | 6 | 15 | 0.5 | |||
| B00314 | C6*20 | 6 | 20 | 2.1 | |||
| B00315 | C6*25 | 6 | 25 | 2.4 | |||
| B00316 | C6*30 | 6 | 30 | 3.4 | |||
| B00317 | C7*18 | 7 | 18 | 2.1 | |||
| B00318 | C7*20 | 7 | 20 | 2.5 | |||
| B00319 | C7*22 | 7 | 22 | 3 | |||
| B00320 | C7*25 | 7 | 25 | 3 | |||
| B00321 | C7*30 | 7 | 30 | 4 | |||
| B00322 | C8*20 | 8 | 20 | 3.6 | |||
| B00323 | C8*25 | 8 | 25 | 4.3 | |||
| B00324 | C8*30 | 8 | 30 | 5.1 | |||
| B00325 | C8*35 | 8 | 35 | 6.5 | |||
| B00326 | C8*40 | 8 | 40 | 7.7 | |||
| B00327 | C8*45 | 8 | 45 | 8 | |||
| B00328 | C8*50 | 8 | 50 | 8.5 | |||
| B00329 | C8*60 | 8 | 60 | 11.1 | |||
| B00330 | C9*40 | 9 | 40 | 11.8 | |||
| B00331 | C9*45 | 9 | 45 | 10 | |||
| B00332 | C9*50 | 9 | 50 | 10.5 | |||
| B00333 | C10*40 | 10 | 40 | 11.7 | |||
| B00334 | C10*50 | 10 | 50 | 14.5 | |||
| B00335 | C10*60 | 10 | 60 | 16.8 | |||
| B00336 | C10*70 | 10 | 70 | 19.2 | |||
| B00337 | C10*80 | 10 | 80 | 23.2 | |||
| B00338 | C10*100 | 10 | 100 | 27.7 | |||
| B00339 | C16*35 | 16 | 35 | 22 | |||
| 4 | PTFE Magnetic Stir Bar Type D (Cross Shape) |
|
B00401 | 10*10 | 10 | 10 | 0.53 |
| B00402 | 15*15 | 15 | 15 | 3.3 | |||
| B00403 | 20*20 | 20 | 20 | 5.2 | |||
| B00404 | 25*25 | 25 | 25 | 8.6 | |||
| B00405 | 30*30 | 30 | 30 | 10 | |||
| B00406 | 35*35 | 35 | 35 | 13.4 | |||
| B00407 | 40*40 | 40 | 40 | 18.4 | |||
| 5 | PTFE Magnetic Stir Bar Type E (Gear Shape) |
|
B00501 | 7*40 | 40 | / | 12.1 |
| 6 | PTFE Magnetic Stir Bar Type F (H Shape) |
|
B00601 | 10*20 | 10 | 20 | 3.3 |
| B00602 | 12*26 | 12 | 26 | 5.8 | |||
| B00603 | 13*33 | 13 | 33 | 10 | |||
| B00604 | 13*40 | 13 | 40 | 13.7 | |||
| 7 | PTFE Magnetic Stir Bar Type G (S Shape) |
|
B00701 | 10*10*25 | 10 | 25 | 5.4 |
| B00702 | 13*13*40 | 13 | 25 | 12.1 | |||
| B00703 | 15*15*50 | 13 | 25 | 19.9 | |||
| 8 | PTFE Magnetic Stir Bar Type H (Ball Shape) |
|
B00801 | 12 | 12 | 12 | 2.5 |
| 9 | Color PTFE Magnetic Stir Bar |
|
B00901 | B8*25 | 8 | 25 | 4.2 |
| B00902 | B8*25 | 8 | 25 | 4.2 | |||
| B00903 | B8*25 | 8 | 25 | 4.2 | |||
| B00904 | B8*25 | 8 | 25 | 4.2 | |||
| 10 | Glass Magnetic Stir Bar |
|
B01001 | 8*32 | 8 | 32 | 5.9 |
| B01002 | 8*40 | 8 | 40 | 7.5 | |||
| B01003 | 10*32 | 10 | 32 | 6.9 | |||
| 11 | PTFE Magnetic Stir Bar Set Type A |
|
B02001 | A6*10 A7*15 A8*20 A10*25 A10*30 A10*30 A12*35 A15*40 | / | / | 76 |
| 12 | PTFE Magnetic Stir Bar Set Type B |
|
B02002 | B4*10 B6*15 B7*20 B7*25 B7*30 B8*30 B8*35 | / | / | 46 |
| 13 | PTFE Magnetic Stir Bar Set Type C |
|
C4*10 C6*15 C7*20 C7*25 C7*30 C8*30 C8*35 | / | / | 43 |
Product Selection
Shape selection
Type A is suitable for use in round bottomed containers, Type B is suitable for flat bottomed containers. Type C is suitable for cylindrical containers with low concentration and concave convex flat bottoms.
Length selection
Generally, the length of the stirrer is selected based on 1/2 or 1/3 of the outer diameter of the container.
Selection of diameter
Determine based on the concentration of the stirred solution, and if the concentration is high, choose a larger diameter as much as possible.
Frequently Asked Questions (FAQ)
What temperature range can the PTFE magnetic stir bar withstand?
The PTFE magnetic stir bar features high temperature resistance from -200°C to +250°C. It can also withstand short-term exposure to temperatures up to 300°C on an electric heating plate, and maintains a 5% elongation even at extreme low temperatures of -196°C.
Can these stir bars be heated directly with an open flame?
No, these stir bars should not be directly exposed to open flames. They must be used on an asbestos mesh or heating plate to ensure safe and uniform heat distribution.
How do I choose the right shape of stir bar for my container?
Type A (Egg Shape) is designed for round-bottomed containers. Type B (Cylindrical Shape with Centre Pivot) is ideal for flat-bottomed containers. Type C (Cylindrical Shape) is best suited for flat-bottomed cylindrical containers holding low-concentration solutions.
What length of stir bar should I select?
As a general rule, you should choose a stir bar length that is approximately 1/2 or 1/3 of the outer diameter of the container you are using.
What are the main advantages of the PTFE outer coating?
Refined PTFE offers excellent chemical inertness, resisting almost all chemical solvents. It provides high lubrication with a friction coefficient of 0.04 (lowest among solid materials) and is completely non-stick, ensuring it won't adhere to substances or scratch your glass containers.
What is the core magnetic material used in these stir bars?
The inner core is made of high-quality N35 permanent magnetic steel, providing a super strong magnetic force and stable stirring operation.