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Strong Lab White PTFE Coated Magnetic Stir Bar from China Manufacturer - Quality Suppliers and Factory Direct Deal

Discover high-quality products sourced from reliable suppliers in China. Our factory is dedicated to producing top-notch goods that meet international standards. With a focus on innovation and craftsmanship, we offer a wide range of items designed to meet your needs. Partner with us to experience the best in quality and service, delivered straight from our China factory to your doorstep. Choose us as your trusted supplier and elevate your business today!
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    Product Details

    PTFE Magnetic Stir Bar
    • ✓Polytetrafluoroethylene material
    • ✓Super strong magnetic force
    • ✓Non stick lubrication
    • ✓Complete specifications
    product-description1
    Type A
    product-description2
    Type B
    product-description3
    Type C
    product-description4
    Cross Shape
    product-description5
    Gear Shape
    product-description6
    H Shape
    product-description7
    S Shape
    product-description8
    Ball Shape
    product-description9
    Color Type
    PTFE Magnetic Stir Bar Set
    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
    Product Show Overview
    Type A Show
    Type A Show
    Type B Show
    Type B Show
    Type C Show
    Type C Show
    Cross Shape Show
    Cross Shape Show
    Gear Shape Show
    Gear Shape Show
    H Shape Show / S Shape Show
    H Shape Show / S Shape Show
    Color Tape Show / Ball Shape Show
    Color Tape Show / Ball Shape Show
    Type A Set Show
    Type A Set Show
    Type B Set Show
    Type B Set Show
    Type C Set Show
    Type C Set Show
    Packing 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)    		 Type A Spec Image 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)    		 Type B Spec Image 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)    		 Type C Spec Image 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)    		 Cross Shape Spec Image 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)    		 Gear Shape Spec Image B00501 7*40 40 / 12.1
    6 PTFE Magnetic Stir Bar
    Type F
    (H Shape)    		 H Shape Spec Image 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)    		 S Shape Spec Image 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)    		 Ball Shape Spec Image B00801 12 12 12 2.5
    9 Color PTFE Magnetic Stir Bar Color Spec Image 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 Glass Spec Image 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    		 Set A Spec Image 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    		 Set B Spec Image B02002 B4*10, B6*15, B7*20, B7*25, B7*30, B8*30, B8*35 / / 46
    13 PTFE Magnetic Stir Bar Set
    Type C    		 Set C Spec Image - 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)
    Q What material is used for the PTFE Magnetic Stir Bars?
    The stir bars are made from high-quality Polytetrafluoroethylene (PTFE) cladding and a strong N35 permanent magnet core. This ensures excellent chemical resistance and maximum magnetic coupling strength.
    Q What is the temperature range these stir bars can withstand?
    They have a working temperature range of -200°C to +250°C. They can tolerate short-term temperatures up to 300°C on electric heating plates, and down to -196°C while maintaining 5% elongation capabilities.
    Q Can I use these stir bars directly over an open flame?
    No, they should not be exposed directly to open flames. When heating, they must be used on an asbestos mesh or heating plate to distribute the heat evenly and protect the PTFE material.
    Q How do I choose the correct shape of a magnetic stir bar?
    Select Type A (Egg Shape) for round-bottomed vessels, Type B (Cylindrical with Center Pivot) for flat-bottomed containers to reduce friction, and Type C (Cylindrical Shape) for low-concentration solutions in flat or concave-bottomed cylindrical containers.
    Q How do I determine the proper length and diameter for my application?
    Generally, the length of the stir bar should be 1/2 to 1/3 of the container's outer diameter. For the diameter, choose a larger size if you are stirring a high-viscosity or high-concentration solution to ensure sufficient stirring power.

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