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Strong Lab White PTFE Coated Magnetic Stir Bar from China Suppliers & Factory - High Performance Stirring Solution

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Product Details

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

PTFE Magnetic Stir Bar Product Exhibition

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

PTFE Magnetic Stir Bar Packing Exhibition

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	101025	10	25	5.4
			B00702	131340	13	25	12.1
			B00703	151550	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	A610 A715 A820 A1025 A1030 A1030 A1235 A1540	/	/	76
12	PTFE Magnetic Stir Bar Set Type B		B02002	B410 B615 B720 B725 B730 B830 B8*35	/	/	46
13	PTFE Magnetic Stir Bar Set Type C			C410 C615 C720 C725 C730 C830 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)

Q1: What materials are used to make these magnetic stir bars?

A1: The stir bars are constructed using a premium Polytetrafluoroethylene (PTFE) outer jacket and a high-quality permanent magnetic steel (N35) core, ensuring exceptional magnetic coupling and durability.

Q2: What is the operating temperature range for the PTFE stir bars?

A2: They offer high temperature resistance from -200°C to +250°C (with short-term resistance up to 300°C on electric heating plates) and low temperature resistance down to -196°C.

Q3: How do I select the proper shape of a stir bar for my experiment?

A3: Choose Type A (Egg Shape) for round-bottomed containers, Type B (Cylindrical with Centre Pivot) for flat-bottomed containers, and Type C (Cylindrical) for standard cylindrical containers with low-concentration solutions.

Q4: How do I determine the correct length and diameter for the stir bar?

A4: Generally, the length should be 1/2 or 1/3 of the container's outer diameter. For highly viscous or concentrated solutions, choose a larger diameter to ensure adequate mixing power.

Q5: Can I expose the PTFE stir bar directly to an open flame?

A5: No, the stir bars must not be exposed directly to open flames. They should be heated on an asbestos mesh to prevent direct flame contact.

Q6: Do these stir bars damage laboratory glassware?

A6: No, the exterior PTFE material features a extremely low friction coefficient (0.04) and high lubrication properties, making them non-stick and completely safe for glass containers.