Cleaning and sterilisation

Cleanroom

Miscellaneous

Analytical measurement and testing

Chromatography

Distillation, separation, filtration

Environmental-, soil-, water-, food analysis

General laboratory consumables

Heating and cooling technology

Life Sciences

Liquid Handling

Occupational safety, Security

Optical instruments and Microscopes

Sample preparation

Stirring, Shaking, Mixing

Vacuum technology, Drying, Dry storage

LabFriend Corporate

facebook

twitter

youtube

LabFriend Australia

LabFriend India

LabFriend Indonesia

LabFriend Korea

LabFriend Malaysia

LabFriend New Zealand

LabFriend  Philippines

LabFriend Singapore

LabFriend South Africa

LabFriend Sri Lanka

LabFriend Vietnam

LabFriend Taiwan

LabFriend MENA

Overhead stirrers

Stirrer Heads

<h1>Overhead Stirrer Stirring Heads</h1>
<h2>Magnetic Overhead Stirring Heads</h2>
Overhead stirer stirring heads for connecting overhead stirrers to jacketed vessels and other laboratory apparatus

Show products in category Stirrer Heads

Bohlender

Buddeberg

Flexible coupling FK 1

The Buddeberg FK 1 Flexible Coupling is essential for stirring tasks involving glass stirring rods. It compensates for structural variances, ensuring efficient and reliable mixing processes in laboratory settings. The coupling features a clamping range of 6 – 10 mm and a maximum torque of 10 Ncm, making it suitable for various applications.
 
 Key Features:
 
 <ul>
 <li>Brand: Buddeberg</li>
 <li>Clamping Range: 6 – 10 mm</li>
 <li>Maximum Torque: 10 Ncm</li>
 <li>Application: Ideal for compensating structural variances in stirring tasks with glass stirring rods</li></ul>
 
 This flexible coupling is a valuable accessory for laboratories requiring precise and reliable stirring solutions.

Optimize your lab's stirring tasks with the Buddeberg FK 1 Flexible Coupling—compensates structural variances, clamping range 6–10 mm, max torque 10 Ncm.

Buddeberg FK 1 flexible coupling, glass stirring rod coupling, laboratory stirring accessory, structural variance compensation

Buddeberg FK 1 Flexible Coupling

LabFriend 9.197 060 Mixing-Technology-Catalogue-2024.pdf

G-Magnetic stirrer head complete NS 29/32, 8 mm dia.

Perfect combination of drive shaft with ball bearings, rotor and lower bearing made of PTFE/PEEK and a rod made of borosilicate glass. Requires little space due to compact construction. 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 into counterbores on the stirrer shaft. This provides optimum power transmission and secure mounting. The 6mm square drive can be fixed into the stirrer coupling or into the agitator. <ul><li>powerful transmission of up to 50 Ncm</li><li>no grease required</li><li>all products exposed to the medium being stirred do not contain any metals</li><li>high speed of up to max. 1500 rpm</li><li>high working temperatures up to +250 °C are possible</li><li>excellent chemical resistance</li><li>safe to run dry</li><li>high durability</li></ul>

LabFriend 9.197 201 2025 BOLA price-list.pdf

Bohlender SG-Magnetic Stirrer Head Complete NS 19/26, 6 mm Dia.

G-Magnetic stirrer head complete NS 29/32, 10 mm dia.

SG-Magnetic stirrer head complete NS 19/26, 6 mm dia.

The Bohlender SG-Magnetic Stirrer Head Complete NS 19/26, 6 mm Dia., is designed for efficient stirring in laboratory applications. With a durable PTFE/PEEK construction, it provides excellent chemical resistance and high-speed operation up to 1500 rpm. This stirrer head is suitable for high working temperatures, up to +250°C, and can run dry safely. The compact design ensures minimal space usage, while the non-porous, welded Rotor siehe guarantees no leakage or memory effects. The 6mm square drive allows secure mounting for optimum power transmission.
 
 Key Features:
 <ul>
 <li>Brand: Bohlender</li>
 <li>Material: PTFE/PEEK, borosilicate glass</li>
 <li>Drive shaft: 6mm square</li>
 <li>Speed: Up to 1500 rpm</li>
 <li>Temperature resistance: Up to +250°C</li>
 <li>Application: Laboratory stirring, chemical resistance, high durability</li></ul>
 This stirrer head is perfect for laboratories requiring high performance, reliability, and efficient stirring solutions.

Enhance lab operations with the Bohlender SG-Magnetic Stirrer Head Complete NS 19/26, 6 mm Dia.—high durability, chemical resistance, and efficiency.

Bohlender SG-Magnetic stirrer, laboratory stirrer head, NS 19/26 stirrer, 6 mm dia stirrer, high-speed stirrer, chemical resistance stirrer

LabFriend 9.197 200 Magnet-Ruehrkupplungen-G-MRK.pdf

Connection coupling VK 7x10

Fixed-diameter connection between motor and stirring shaft. Suitable for use in potentially explosive atmospheres (ATEX). Material no. 1.4404

For: BUK/MRK | Type: VK 7 x 10 | UNSPSC: 41103816 | 

Connection coupler VK 14x10

Connection coupler VK 14x14

Connection coupler VK 20x14

Connection coupler VK 14x12

Vonnection coupling VK 7x8 Mat.No. 1.4404

For: BSR 64 | Type: VK 14 x 10 | UNSPSC: 41103816 | 

For: BSR 64 | Type: VK 14 x 14 | UNSPSC: 41103816 | 

For: BSR 64 | Type: VK 14 x 20 | UNSPSC: 41103816 | 

For: BSR 64 | Type: VK 14 x 12 | UNSPSC: 41103816 | 

For: BUK/MRK | Type: VK 7 x 8 | UNSPSC: 41103816 | 

Globe stirrer coupling, POM wave adapter GL10 and 10 mm

Made of POM, a plastic material with a good mechanical strength, powerful transmission of up to 300 Ncm, suitable for a speed of up to 1.200 rounds per minute, maximum misalignment of axes 10 mm. Ideal for balancing misalignment of axes between agitator and stirrer shaft, suitable for glass, metal or PTFE stirrer shafts. <ul><li>very low centrifugal forces due to low weight</li><li>suitable for both left and right-handed rotation</li><li>no resonance</li><li>simple assembly by means of screw joints with clamp rings</li><li>pivot (length 90 mm) can be shortened by the user</li></ul>

LabFriend 9.197 202 Katalog_E800_WEB_EN.pdf

Globe Stirrer Coupling, POM wave absorption Ø 6,5 and 10 mm

Globus stirring coupler, POM for 6 mm internal square

Globe stirring couplings, POM wave adapter Ø 8 and 10 mm

Globus agitator couplings L 190 mm; Ø 8 + 10 mm Top mounting Ø 8 mm

Globe Stirrer Coupling, POM wave absorption Ø 4 mm

Globus agitator couplings L 190 mm; Ø 4 mm Top mounting Ø 8 mm

Globus agitator couplings L 190 mm; Ø 6,5 + 10 mm Top mounting Ø 8 mm

Compresses air industry stirrer BSR 64/160-V with floor stand

BSR series stirrers perform routine mixing tasks up to 200 l. General specifications:<ul><li>operating pressure max. 6 bar</li><li>air consumption 800 l/min. at 6 bar</li><li>power output 640 W at 6 bar</li><li>clockwise rotation</li><li>ATEX rating to Ex II 2G Ex h IIC T5 Gb</li></ul> Basic models include:<ul><li>all-stainless steel housing</li><li>continuously adjustable speed control valve</li><li>spherical clamping device with support arm diam. 16 mm, length 200 mm</li><li>floor stand with rod (height 1000 mm, width 600 mm) and bosshead</li><li>plug-in connector DN 7.8</li><li>silencer</li><li>output shaft L 32 mm x diam. 14 mm</li></ul>

Compresses air industry stirrer BSR 64/65-V with floor stand

Compresses air industry stirrer BSR 64/30-V with floor stand

Magnetic Stirrer Heads (P-MRK) NS 45/40, Ø 10 mm

The Bohlender Magnetic Stirrer Heads (P-MRK) NS 45/40, Ø 10 mm are precision-engineered stirrer heads designed for laboratory applications requiring efficient mixing and stirring. Manufactured with high-quality materials, these stirrer heads ensure durability and reliability in various research and analytical settings.
 
 Key Features:
 <ul>
 <li>Brand: Bohlender</li>
 <li>Material: Stainless steel construction with Hastelloy receiver for enhanced durability</li>
 <li>Compatibility: Designed for use with PTFE-jacketed stirrer shafts</li>
 <li>Joint Size: Ground Joint NS 45/40</li>
 <li>Shaft Diameter: Ø 10 mm</li>
 <li>Height: 145 mm</li>
 <li>Immersion Length: 95 mm</li>
 <li>Maximum Speed: Up to 1500 rpm</li>
 <li>Transmission Torque: Up to 90 Ncm</li>
 <li>Temperature Resistance: Suitable for high-temperature applications</li>
 <li>Application: Ideal for laboratory mixing and stirring tasks</li></ul>
 
 These stirrer heads are essential for laboratories that require efficient and reliable mixing solutions in various research and analytical settings.

Bohlender Magnetic Stirrer Heads P-MRK NS 45/40 Ø 10 mm offer precision and durability for efficient laboratory mixing and stirring applications.

Bohlender magnetic stirrer heads, P-MRK stirrer head, NS 45/40 stirrer head, Ø 10 mm stirrer head, laboratory stirrer head, PTFE-jacketed stirrer shaft, high-speed stirrer head, LabFriend Australia

Bohlender Magnetic Stirrer Heads (P-MRK) NS 45/40, Ø 10 mm

LabFriend 9.197 207 Magnet-Ruehrkupplungen-P-MRK.pdf

Bohlender Magnetic Stirrer Heads (P-MRK) NS 29/32, Ø 8 mm

Bohlender Magnetic Stirrer Heads (P-MRK) NS 29/32, Ø 10 mm

Magnetic Stirrer Heads (P-MRK) NS 29/32, Ø 8 mm

The Bohlender Magnetic Stirrer Heads (P-MRK) NS 29/32, Ø 8 mm are precision-engineered components designed for efficient magnetic stirring in laboratory applications. Manufactured from high-quality materials, these stirrer heads ensure reliable performance and compatibility with standard laboratory equipment.
 
 Key Features:
 <ul>
 <li>Brand: Bohlender</li>
 <li>Type: Magnetic Stirrer Head</li>
 <li>Model: P-MRK</li>
 <li>Thread Size: NS 29/32</li>
 <li>Diameter: Ø 8 mm</li>
 <li>Material: High-quality construction for durability</li>
 <li>Compatibility: Suitable for standard laboratory stirrer setups</li>
 <li>Applications: Ideal for use in chemical, biological, and pharmaceutical laboratories</li></ul>
 
 These stirrer heads are essential for laboratories requiring precise and reliable stirring solutions in various research and analytical settings.

Bohlender P-MRK magnetic stirrer heads with NS 29/32 thread and Ø 8 mm diameter offer reliable stirring solutions for laboratory applications.

Bohlender magnetic stirrer heads, P-MRK stirrer head, NS 29/32 stirrer head, Ø 8 mm stirrer head, laboratory stirring equipment, magnetic stirring solutions, LabFriend Australia

LabFriend 9.197 205 Magnet-Ruehrkupplungen-P-MRK.pdf

LabFriend 6.240 637 Globusruehrkupplungen.pdf

LabFriend 4.670 726 Ruehrwellenbeileger_A5_DE_2025_Online.pdf

Magnetic Stirrer Heads (P-MRK) NS 29/32, Ø 10 mm

The Bohlender Magnetic Stirrer Heads (P-MRK) NS 29/32, Ø 10 mm are precision-engineered connectors designed for versatile laboratory applications. Manufactured from high-purity PTFE, these fittings offer exceptional chemical resistance and thermal stability, making them ideal for connecting PTFE, PFA, FEP, glass, and metal tubing.
 
 Key Features:
 <ul>
 <li>Brand: Bohlender</li>
 <li>Material: High-purity PTFE for universal chemical resistance</li>
 <li>Thread Size: GL 25</li>
 <li>Bore Diameter: 14.5 mm</li>
 <li>Shape: T-form for efficient distribution of liquids or gases</li>
 <li>Temperature Resistance: -200°C to +250°C</li>
 <li>Pressure Resistance: Up to 10 bar (when used with compatible Bola laboratory screwthread connections at room temperature)</li>
 <li>Applications: Suitable for vacuum systems and connecting different diameters of tubes or tubing</li></ul>
 
 These fittings are essential for laboratories requiring reliable and high-quality connections in various research and analytical settings.

Bohlender Magnetic Stirrer Heads (P-MRK) NS 29/32, Ø 10 mm offer chemical resistance and durability for precise lab connections.

Bohlender magnetic stirrer heads, P-MRK stirrer head, NS 29/32 stirrer head, Ø 10 mm stirrer head, laboratory stirrer head, PTFE stirrer head, chemical resistant stirrer head, LabFriend Australia

LabFriend 9.197 206 Ruehrwellenbeileger_A5_EN_2024.pdf