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  2. Agitators
  3. Stirrers
Description 25 Manufacturers
Zhejiang Jhenten Machinery Co.,Ltd
Xiamen TOB New Energy Technology Co.,Ltd
VOLLRATH GMBH
Sumitomo Metal Mining Co., Ltd.
Shenyang Yu Shuo Da Science And Technology Ltd.
Radleys
planetroll GmbH & Co. KG
OLABO
MARLLIN
Labstac LLC.
Labomiz Scientific Ltd.
Jinhua Noke Biotechnology Co., Ltd

25 Stirrer Manufacturers in 2024

This section provides an overview for stirrers as well as their applications and principles. Also, please take a look at the list of 25 stirrer manufacturers and their company rankings. Here are the top-ranked stirrer companies as of November, 2024: 1.Fluid Kotthoff GmbH, 2.HOVERLABS, 3.VOLLRATH GMBH.

Table of Contents

What Is a Stirrer?

Stirrers

Figure 1. Image of a stirrer

A stirrer is a laboratory instrument made of small magnets used to stir liquids.

It is sometimes called a stirrer bar, stirrer tip, or rotor. The most common way to use a stirrer is to place a container containing a stirrer on top of the magnetic stirrer and rotate the stirrer. The stirrer in the container rotates with the movement of the magnets in the magnetic stirrer, thereby stirring the liquid.

Uses of Stirrers

Magnetic stirrers are used in chemistry, biology, pharmacy, medicine, and all other fields of experimentation, development, and analysis that require the stirring of liquids.

They have the advantage of being more efficient than simple bar magnets themselves. They are also easier to use than gear-driven electric stirrers because they have no moving external parts to break or wear out. To achieve good stirring conditions, it is important to fine-tune the speed of the magnetic stirrer.

However, it is difficult to handle viscous liquids or thick suspensions, and stirrers of different shapes and sizes should be used to stir larger volumes or more viscous liquids.

Principles of Stirrers

3787_Stirrers_撹拌子-2.png

Figure 2. How to use the stirrer

Stirrers are usually used in combination with a magnetic stirrer. The mechanism by which the magnetic stirrer and stirrer agitate the liquid in the container is as follows:

  1. Place the liquid and stirrer in the stirrer container and place it on top of the magnetic stirrer.
  2. There is a magnet inside the magnetic stirrer, so the stirrer and the magnet inside the magnetic stirrer attract each other.
  3. When the magnetic stirrer is turned on, the magnet inside the magnetic stirrer begins to rotate, and the stirrer rotates with it.
  4. The rotation of the stirrer stirs the liquid.

Because the stirrer is small, it can be cleaned and sterilized more easily than other devices or stirring rods. However, when mixing viscous liquids or thick solutions, it is preferable to use a different stirring method because the stirring force may not be sufficient.

A container that does not require complicated sealing or other conditions and does not affect magnetism can be used. Typically, it is used in laboratory glassware, such as vials or beakers.

Also, stirrers are usually coated with Teflon or glass and are chemically inert. They will not contaminate or react with the mixture during mixing.

Types of Stirrers

3787_Stirrers_撹拌子-3.png

Figure 3. Various stirrers

The stirrer's stirring power depends on the liquid being stirred and the shape of the container. Various shapes are commercially available, ranging in size from a few millimeters to several centimeters.

1. Rod-Shaped Stirrer

This is the most commonly used and common stirrer. It is used to agitate containers with flat bottoms, such as beakers.

2. Football-Shaped Stirrer

This stirrer is tapered like a football. The tapered structure enables smooth stirring in round-bottom flasks and eggplant flasks.

3. Octagonal Stirrer

It is characterized by its octagonal cross section and a central band for rotation. The central band prevents the agitator from hitting the container during stirring.

4. Triangle-Shaped Stirrer

This stirrer has a triangular cross section. It has strong stirring power and is used for stirring liquids containing sediments or liquids with strong viscosity.

5. Cross-Shaped Stirrer

This stirrer is cross-shaped when viewed from above. The cross-shaped agitator can create a vortex when stirring, thus possessing strong stirring power.

How to Select Stirrers

Stirrers are selected according to the quantity and condition of the material to be stirred, the container to be used, and the power of the stirrer's motor. Although there are many different types of stirrers available, it is recommended that you clarify the purpose of your use and use the information in the stirrer specifications as a guide in making your selection.

The following are examples of magnets used in stirrers:

1. Neodymium Magnet

This magnet is made by sintering neodymium, carbon, and boron together. It exhibits high magnetism among permanent magnets. The disadvantages are its high price and the fact that its magnetism changes with temperature; it should be used at 80 °C or lower.

2. Ferrite Magnet

This magnet is made by sintering iron oxide and barium together. Not only does it exhibit stable magnetism, but it is also inexpensive. These magnets are easy to use for large objects.

3. Samarium-Cobalt Magnet

This magnet is made by combining samarium and cobalt. Because it uses a rare metal, it is even more expensive than neodymium magnets. It is sometimes used as a material for Stirrers because its magnetism is stable even at high temperatures.

4. Rare Earth Magnets

Manufactured by sintering neodymium, boron, and iron, these magnets have the best magnetic properties. Due to their low temperature characteristics, they must be used at temperatures below 80°C. It is used as a strong magnetic stirrer or a super strong magnetic stirrer.

Other Information on Stirrers

1. Prevention of Contamination by the Stirrer

The stirrer is a device that can easily cause contamination. After removal from the solution, they should be cleaned by an appropriate method that removes the solution used.

Before use, make sure the surface is clean and discard any with yellowing.

2. Removal of the Rotor

After using the rotor, remove it by placing a magnet against it from outside the container or by using a rod made of magnets. After removing the rotor, do not touch it carelessly and wash it.

List of 25 Stirrer Manufacturers

*Including some distributors, etc.

Sort by Features

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  • Company Size: largest first
  • Year Founded: oldest first
  • Year Founded: earliest first

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  • United States of America
  • Canada
  • China
  • Germany
  • India
  • Japan
    • Labstac LLC.

      • Labstac LLC.
        STIRRER

      • United States of America Address: 82 Wendell Avenue, STE 100., Pittsfield, Massachusetts, United States of America

      Company Overview

      Labstac LLC, founded in 2012, is a manufacturer and supplier of laboratory, scientific, and medical equipment headquartered in Pittsfield, MA, USA.  The company operates in over 34 countries with an extensive distributor network covering American, European, the Gulf, and South Asian regions. The company's product lineup includes biosafety cabinets, centrifuges, incubators, autoclaves, and various other medical laboratory supplies. With an annual turnover of $50K USD, the company specializes in both buying and selling as a Limited Liability Partnership. The company's products are used in the pharmaceutical and medical industries as well as in biotechnology, hospitals, and research centers.

    • planetroll GmbH & Co. KG
      • Germany Address: Brunnenbergstrasse 11-13 Munderkingen, Germany

      Manufacturer Overview

      planetroll GmbH & Co. KG, founded in Germany in 1976, is a manufacturer of stand stirrers and agitators. The company's product portfolio includes laboratory and pilot plant stands, ground and wall stands, mobile stands, portal stands, and motor agitators. Its power transmission technology as well as the stirring and agitating technology with components are available in both non explosion proof and explosion-proof version according to ATEX Directive 2014/34/EU and also the company has ISO 9001:2015 certification.

    • ERWEKA GmbH
      • Germany Address: Pittlerstraße 45, Langen, Hesse, Germany

      Manufacturer Overview

      ERWEKA GmbH, established in 1951 and headquartered in Langen, Germany, is a manufacturer of test equipment for the pharmaceutical industry. The company designs, manufactures and installs the whole range of dissolution and physical test equipment for pharmaceutical and life science companies, research and test laboratories, and universities all over the world. It offers a product for every required test for solid dosage form drugs. The company has been granted ISO 9001 and 14001 certificates, and shares all the Certificates of Compliance(CoC) and other Declarations of Conformity of its products on the website.

    • VOLLRATH GMBH
      • Germany Address: Max-Planck-Str.13, Hürth, North Rhine-Westphalia, Germany

      Manufacturer Overview

      Vollrath GmbH, founded in 1919 and located in Hürth, Germany, is a manufacturer of products used in the international mixing and wet grinding technology sector. Vollrath's product line includes dispersers (dissolvers), bead mills (agitator-ball mills) with power density and energy efficiency, and mixers/stirrers designed for specific applications, frequently used in the paint and lacquer industry. It is ISO 9001, ATEX, and EC certified and offers tank and container features such as bottom and wall scrapers.

    • Zhejiang Jhenten Machinery Co.,Ltd

      • Zhejiang Jhenten Machinery Co.,Ltd
        Stirrer

      • China Address: No.808 Haitong Road, Binhai Development Zone, Wenzhou City, China

      Manufacturer Overview

      hejiang Jhenten MACHINERY CO.,LTD., established in 1986 and based in Wenzhou, China, is a manufacturer and supplier of storage vessels, process tanks, and stainless steel fabrications. The company's product portfolio includes jacketed steam kettles, precision liquid filters, and intelligent vacuum emulsification systems. These products are used in various sectors, including the pharmaceutical industry, cosmetics, and the food and beverage industries. The company offers services including technical support and maintenance, while also being ISO 9001 and ISO 14001 certified.

    • Elektrowerkzeuge GmbH Eibenstock

      • Elektrowerkzeuge GmbH Eibenstock
        Stirrers

      • Germany Address: Auersbergstraße 10 08309 Eibenstock, Germany

      Manufacturer Overview

      Elektrowerkzeuge GmbH Eibenstock is a German ISO 9001-certified power tools manufacturer that was established in 1919 in Eibenstock, Saxony. The company's products include power tools and equipment for a wide range of industrial applications such as drilling, smoothing, or cutting various materials. These tools include diamond core drills, sanders, and dust extractors. It also offers drill bits, polishing pads, and alloy-fabricated blades. The company provides additional spare parts, repair, and personnel training services. Its products are mainly used by clients in construction, stonemasonry, and civil engineering.

    • Sumitomo Metal Mining Co., Ltd.
      • Japan Address: 11-3, Shimbashi 5-chome Minato-ku, Tokyo, Japan

      Manufacturer Overview

      Sumitomo Metal Mining Co., Ltd. was established in 1952 and is a manufacturer of battery materials based in Minato, Tokyo, Japan. The company produces various products related to the battery materials in a complete in-house system, such as mineral ore, low-grade nickel oxide ore, nickel sulfate, and cathode material. The company divide different products into three business divisions, which are Mineral Resources, Smelting and Refining, and Materials business. The minerals that are being the main commodities of the company are mainly copper, nickel, cobalt, gold, and silver.

    • Jinhua Noke Biotechnology Co., Ltd
      • China Address: Room 604, Research Building, 1#1 Xianhua Science and Technology Park, Xianhua South Street, Qiubin Street, Wucheng District, Jinhua City, Zhejiang, China

      Manufacturer Overview

      Jinhua Noke Biotechnology Co., Ltd is a manufacturer and supplier of biotechnology products. Established in 2003, the company is based in Jinhua, Zhejiang, China. The company specializes in producing multiple biotechnology products, including laboratory equipment, reagents, and consumables. Its product portfolio comprises items like Liquid handling and PCR series, Culture series products, Analytical Consumables, Freezing products and Lab Equipments. Jinhua Noke Biotechnology offers services such as technical consultation and product support. Their products and solutions find applications in research laboratories, educational institutions, and healthcare facilities.

    • Chongqing New World Trading Co., Ltd
      • China Address: Room 1001, Unit 2, No.88, Jianxin East Road, Jiangbei District, Chongqing, China

      Manufacturer Overview

      Chongqing New World Trading Co., Ltd, founded in China, in 2009 is a manufacturer of medical disposables and laboratory plastic wares. The company's product portfolio includes blood rotator mixers, water baths, thermometers, microscopes and drying ovens. Their products are used in industries such as Food and Beverage, Pharmaceutical and Biotechnology, Chemical and Petrochemical, Environmental Testing and healthcare. They also offer custom packaging, warehousing, technical and customer support and distribution services.

    • HOVERLABS
      • India Address: 91, H.S.I.D.C Industrial Estate Ambala , Haryana, India

      Manufacturer Overview

      HoverLabs has roots dating back to 1963 and is headquartered in Haryana, India. The company is a laboratory supplies manufacturer, exporting to over 110 countries. The company provides extensive R&D for designing, manufacturing, and packaging supplies. The company also provides customized product development, OEM support, and project management assistance. The company’s products include educational equipment, analytical lab equipment, engineering lab equipment, medical lab equipment, and other products used in the medical as well as scientific industries.

    • Biometer
      • China Address: Room 709, Building 6, No. 506 Huicheng Road, Chengyang District, Qingdao, Shandong, China

      Manufacturer Overview

      Biometer Co., Ltd., founded in 2011 with headquarters in China, is a manufacturer of medical and laboratory equipment. The company's products include biohazard safety cabinets, speed control rotor optional table-type refrigerated centrifuges, oscillating constant temperature incubators, and cultivators used in various fields, including government departments, scientific research institutions, biomedicine, electronics, and electrical appliances. The company also provides microbiology solutions, such as those for vaccine testing, molecular biology workflows, biopharmaceutical development, and quality control.

    • Ambica boiler & fabricator
      • India Address: No. 24 - A, Laxmi Industrial Estate, Near Babul Products, Amraiwadi, Ahmedabad, Gujarat, India

      Manufacturer Overview

      Ambica Boiler & Fabricator is a manufacturer of ribbon blender mixers. It is headquartered in Ahmedabad, Gujarat, India and was founded in since 2003. The company designs, manufactures, and supplies many types of ribbon blender mixers, including horizontal ribbon blender mixers, vertical ribbon blender mixers, and planetary ribbon blender mixers. Its products are used by a multiple of industries, including food processing, chemical processing, and pharmaceutical processing. The company also offers technical support, installation, and training services to ensure efficient utilization of its products.

    • Shenyang Yu Shuo Da Science And Technology Ltd.
      • China Address: No.427-27 Hunnan Dong Street, Hunnan Dirst, Shenyang, Liaoning, China

      Manufacturer Overview

      Shenyang Yu Shuo Da Science And Technology Ltd., established in 2016, is a Chinese manufacturer based in Shenyang, Liaoning, providing laboratory equipment and consumables. The company’s laboratory equipment lineup includes autoclave sterilization equipment, centrifuges, and embedding centers. The company also offers laboratory consumables, including pathology histology and biological cytology products. Medical refrigerators are also available, ranging from 50 liters up to 1,000 liters, commonly used in laboratories, pharmacies, hospitals, and blood banks. The company further expands its offerings to include stainless steel veterinary equipment, such as animal cages and surgical tables, along with mortuary products like autopsy tables and mortuary freezers.

    • Caltech Instruments
      • India Address: D-104, Twin Arcade, Military Road, Marol, Andheri East, Mumbai, Maharashtra, India

      Manufacturer Overview

      Caltech Instruments is a manufacturer and supplier of paint testing instruments. Established in 1963, the company is headquartered in Mumbai, India. The company's main activities revolve around designing, and manufacturing paint-testing instruments, including Viscosity, Coating Performance, Application, Color, Gloss, and Thickness instruments. Its products such as UV Weathering Tester, Xenon Test Chamber, Climate Cabinet and, Resistance Ohmmeter find applications in various industries, including automotive, construction and industrial. Caltech Instruments also offers services such as technical support, installation, and training.

    • OLABO
      • China Address: 3th floor, No. 2 building, 9 Gangxing road, High-tech Zone, Jinan, Shandong, China

      Manufacturer Overview

      OLABO, established in 2012, is a manufacturer and supplier specializing in laboratory and scientific equipment based in Shandong, China. The company offers a wide range of laboratory equipment, including cleaning and disinfection equipment, safety protection products, medical equipment, and analytical tools. Their product portfolio also includes cold chain products and some industry research equipment. OLABO adheres to ISO13485, ISO9001, and CE certifications and maintains research, quality control, sales, and after-sales service teams to serve their clients across the globe.

    • Bel-Art Products

      Manufacturer Overview

      Bel-Art Products, a company founded in 1946, based in Wayne, New Jersey, USA, is a manufacturer and supplier of labware, glassware, and scientific products. The company offers various products such as bottles, beakers, funnels, flasks, tubes, racks, clamps, thermometers, timers, hydrometers, and safety equipment. Lab equipment, supplies, and glassware are made and sold by the product, which is a major producer and supplier of its things. It has various goods for use in chemistry, biology, physics, and engineering labs, among others. Its goods are known for it quality, accuracy, and how long it last.

    • Admix, Inc.

      Manufacturer Overview

      Admix, Inc. is a manufacturer of milling and mixing equipment for the industrial sector established in 1989 in Londonderry, New Hampshire, USA. The company’s product lineup includes various wet mills for continuous processes or emulsification, in-tank batch mixers for homogenization or high shear mixing, and powder induction systems for incorporating powders into solutions quickly and efficiently. The company is 3-A, USDA–AMS, and EHEDG-certified, and mainly serves clients in the industrial processing sector.

    • MARLLIN

      Manufacturer Overview

      Marllin is a manufacturer of magnetic stirrers for the industrial sector established in 1996 and based in Civrieux, Auvergne-Rhône-Alpes, France. The company offers a range of magnetic stirrers for homogenization or heat transfer operations, tank top agitators for emulsification or dilution processes, and bottom agitators rated for rotation speeds of up to 4200rpm. It also offers product customization and calibration services for customers requiring additional support. The company’s products are commonly used in the biotech, food and beverage, and pharmaceutical industries.

    • Labomiz Scientific Ltd.
      • Canada Address: 35 Coons Rd, Richmond Hill, Ontario, Canada

      Company Overview

      Labomiz Scientific Ltd., Founded in the year 2007, is a manufacturer and global supplier of laboratory and scientific equipment. The company serves educational institutions and research laboratories worldwide. Labomiz's comprehensive range of laboratory equipment is designed to meet the needs of various industries and research fields. The company has established itself as a source for classy laboratory instruments, supported by a team of skilled professionals in marketing, sales, application, and support. Labomiz Scientific Ltd. continues to scientific advancements through its advanced and laboratory equipment offerings.

    • Indco, Inc.

      Company Overview

      Indco, Inc. is a manufacturer and distributor of mixing equipment established in 1975 and based in New Albany, Indiana. Its manufactured equipment includes industrial sanitary mixers, stainless steel tanks, stirrers, dispersion blades, and mixing propellers. It also manufactures mixing machine accessories like air hoses, clamp brackets, paddles, shafts, and dispersion blade adapters. The company is ASME Boiler and Pressure Vessel certified and acquired ISO 9001:2015 certification. It caters to several industries, such as sanitary, pharmaceutical, chemical, petroleum, and construction industries across the USA.

    • FASA AB

      Company Overview

      FASA AB, founded in 1959, is a manufacturer and supplier based in Marijampole, Lithuania, producing dairy processing and packaging equipment. The company's lineup includes butter and processed cheese processing equipment as well as related equipment such as butter block cutting machines, butter homogenizers, and thermoforming machines. It also manufactures a range of wrapping, sealing, and packaging equipment, among others, for butter, processed cheese, and curd. The company caters to small and medium-sized dairy plants in over 85 countries, offering after-sale services and spare parts.

    • BEING TECHNOLOGY CO.,LTD

      Company Overview

      BEING Technology Co., Ltd., founded in 1997 with facilities in the USA and headquarters in China, is a manufacturer and distributor of laboratory instruments and environmental test devices. The company's products include vacuum ovens, orbital shakers, homogenizers, air-forced heating incubators, and rotary evaporators. BEING Technology serves various markets, including laboratories in colleges, industrial and mining enterprises, and scientific research departments. As of July 2023, the company had produced more than 700,000 devices.

    • Xiamen TOB New Energy Technology Co.,Ltd

      Distributor Overview

      Xiamen TOB New Energy Technology Co.,Ltd, a company founded in 2012, based in Xiamen, China, is a supplier of battery equipment and materials. The company offers various products and services such as battery machines, battery materials, and laboratory equipment. The company has a strong R&D team and is loyal to the development of new battery technologies. It have developed a dry electrode technology that uses no solvents, which can reduce the environmental impact of battery production. It also developing new battery materials and technologies for next-generation batteries, such as sodium-ion batteries and solid-state batteries.

Stirrer Manufacturer Ranking

*Including some distributors, etc.

Derivation Method

The ranking is calculated based on the click share within the stirrer page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.

Number of Employees

  1. Sumitomo Metal Mining Co., Ltd.: 7,280
  2. OLABO: 2,000

Newly Established Company

  1. Xiamen TOB New Energy Technology Co.,Ltd: 2012 (12 years ago)
  2. OLABO: 2012 (12 years ago)
  3. Chongqing New World Trading Co., Ltd: 2009 (15 years ago)

Company with a History

  1. VOLLRATH GMBH: 1919 (105 years ago)
  2. Elektrowerkzeuge GmbH Eibenstock: 1919 (105 years ago)
  3. ERWEKA GmbH: 1951 (73 years ago)

Stirrer Manufacturers in United States

*Including some distributors, etc.

Global Distribution of Stirrer Manufacturers by Country

*Including some distributors, etc.

Country Number of Companies Share (%)
China China 6 37.5%
Germany Germany 4 25.0%
India India 3 18.8%
United States of America United States of America 1 6.3%
Japan Japan 1 6.3%
Canada Canada 1 6.3%

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