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This section provides an overview for centrifugal concentrators as well as their applications and principles. Also, please take a look at the list of 16 centrifugal concentrator manufacturers and their company rankings. Here are the top-ranked centrifugal concentrator companies as of December, 2024: 1.Labnet Oy, 2.Medline Industries, LP,, 3.Cole-Parmer.
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1987~1991: Engaged in research on wire covering materials at Polymer Materials Laboratory.
1991~1997: Worked as a patent Engineer at Koike International Patent Office.
1997~2005 Worked as an intellectual property member at GE Yokogawa Medical System, currently working as a writer.
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A centrifugal concentrator is generally a decompression concentration and drying device that combines a centrifuge and a vacuum dryer.
While centrifugal force suppresses sudden boiling, the boiling point is lowered by depressurization, and the heat of vaporization is supplemented by heating to evaporate the solvent and concentrate the target sample.
In addition to being used for the analysis of trace samples, this equipment is also being introduced into the concentration process, which has a significant impact on sludge treatment systems in light of the worsening deposition of sewage sludge. Since it can be operated continuously and almost unattended, it is expected to become more widely used in the future.
Because centrifugal force prevents solvent from boiling or foaming, sample loss can be minimized, making it suitable for concentrating samples for trace analysis.
They are used, for example, to concentrate DNA, RNA, peptides, and other applications that require concentration and drying.
On the other hand, centrifugal thickeners are also increasingly being used in sewage sludge treatment due to their ease of operation, automatic operation, and maintenance.
Centrifugal concentrators use the "three states of matter" to concentrate samples. Specifically, the process of solid ⇔ liquid ⇔ gas is concentrated by low-temperature drying under reduced pressure.
First, the boiling point of the sample (solvent) is lowered by reducing the pressure applied to the sample. At the same time, heating accelerates the volatilization of the solvent and prevents the freezing of the solvent that occurs during depressurization.
The overall system consists of a centrifugal concentrator, cooling trap, and vacuum pump. The vacuum pump reduces the pressure in the centrifugal concentrator to concentrate the sample. The cooling trap then condenses and collects the vaporized solvent.
The centrifugal thickener for sludge concentration concentrates excess sludge by centrifugal force. The outer and inner cylinders rotate around a sludge feed pipe while maintaining a constant difference in rotation. Sludge is continuously fed from the sludge feed pipe into the outer drum, and centrifugal force causes the solids in the sludge to settle and accumulate on the inner wall of the outer drum. The sludge is then discharged out as concentrated sludge by the action of a screw installed in the inner drum.
Among sewage sludge, sludge in the first sedimentation tank settles easily and can be concentrated by gravity sedimentation, but sludge in the final sedimentation tank (especially excess sludge) does not settle well, so it is not easy to concentrate the sludge by gravity sedimentation. Therefore, it is difficult to concentrate sludge by gravity settling. Mechanical concentration methods include atmospheric pressure floating thickeners and belt-type filtration thickeners, and centrifugal thickeners are one of the mechanical concentration methods.
Sludge is first pumped to the centrifugal thickener and supplied. The structure of the centrifugal thickener is largely divided into an outer bowl and an inner bowl. Before the sludge is introduced into the centrifugal thickener, flocculants are added. By mixing the added flocculant, the sludge mixed with the flocculant is discharged into the end of the bowl. The outer bowl rotates at high speed, and the sludge is subjected to the centrifugal force of 800-1200 G, which initiates sedimentation separation due to the difference in specific gravity between water and solids.
The centrifugal force causes the feed sludge to settle and separate faster than gravity settling. The settled and separated concentrated sludge is transported to the concentrated sludge outlet by a screw conveyor attached to the inner bowl, and the separated liquid is transported to the separation liquid outlet by the flow.
Thus, sludge with a feed sludge concentration of 0.6-0.8% is concentrated and discharged as 4-6% concentrated sludge.
The structure of the centrifuge is largely divided into an outer bowl and an inner bowl.
The supplied sludge is fed into the bowls, where it is subjected to centrifugal force, stuck to the outer bowl, sedimented, and separated. The supernatant is discharged as a separated liquid, and the sedimented material as concentrated sludge. The outer bowl and inner bowl of the centrifuge do not rotate at the same speed but rather have a rotational difference of about 3 to 8 revolutions, with the inner bowl, to which the screw conveyor is attached, rotating slightly slower. This difference in the rotation is called "differential speed." This difference in the rotation is the force that transports the concentrated sludge to the discharge outlet by the screw conveyor.
*Including some distributors, etc.
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Eppendorf, founded in 1945 with headquarters in Germany, is a manufacturer and supplier of laboratory equipment, instruments, and consumables. The company's product line includes pipettes, pipette tips, centrifuges, mixers, and ultra-low-temperature equipment. Eppendorf's products are used in academic and commercial research laboratories as well as in the pharmaceutical, biotechnical, chemical, and food industries to perform clinical, environmental, process analysis, and production quality assurance. The company also offers services for liquid, sample, and cell handling in laboratories worldwide.
Corning Incorporated, founded in 1851 and headquartered in Corning, New York, is a manufacturer and supplier of specialty glass, ceramics, and optical fiber. Their offerings include optical fiber for long-distance light signal transmission, specialty glass for applications like displays and lighting, ceramics for various uses, such as cookware and medical implants, and advanced materials like 3D printing powders and ceramic matrix composites. Additionally, Corning provides products for the life sciences industry, such as labware, consumables, and analytical instruments.
Labconco Corporation, founded in 1925 and located in Kansas City, Missouri, is a manufacturer of laboratory equipment. Its diverse product line includes freeze dryers, forensic enclosures, water purification systems, glassware washers, and glove boxes. The company’s products are used for moisture removal while preserving sample integrity, safe handling of hazardous materials, producing pure water for experiments, efficient cleaning, and providing controlled environments for sensitive material work. These products serve industries such as pharmaceuticals, biotechnology, research, quality control, and enhancing safety. The company is also ISO 9001-certified for its quality management system.
Jnbang Light Ind Machinery Co.,ltd, founded in China in 1997, is a manufacturer of black soldier fly automated breeding equipment, vacuum belt dryers, and CBD oil extraction machines. In addition to its specialized products, the company also offers an environmental protection concentrator that is mainly adapted to the concentrated production process of traditional Chinese medicine, health care products, natural seasonings, and food additives. The company provides a range of services such as consulting, scheme design and manufacturing, budget, on-site installation, and after-sale maintenance for clients in the pharmaceutical, food, biological, and chemical industries.
LabTech S.r.l. was established in 2005 and is a manufacturer of sample preparation systems, laboratory temperature control equipments, and liquid nitrogen generators based in Sorisole, Bergamo, Italy. The company offers various laboratory equipment products such as reaction stations, organic sample preparation, and thermostatic baths. These products are used in various applications including distillation, fermentation, and rotary evaporation. The company has obtained the certification of ISO 9001:2015 standards by TUV SUD organization.
Buch & Holm, based in Denmark was founded in 1935, is a supplier of equipment for laboratories and industrial companies representing a large number of the world's manufacturers with specialties in each of their fields. The company offers a complete service package with customer support and technical service, webshop etc. They supply products and solutions to various research, healthcare, and educational institutions. Their comprehensive product range includes laboratory instruments, consumables, and chemicals, catering to different scientific needs.
Sepor Services LLC Consulting, founded in 1953 and located in Coral Springs, Florida, is a manufacturer and supplier of mineral processing equipment. The company’s broad range of products includes CPW Plus scales, anti-vibration tables, CCT bench scales, core compact portable balances, and jaw crushers. The company’s products are used for industries, stable lab environments, accurate measurements, mobility, and breaking down hard materials in mining, metallurgy, and geology. These products find applications in laboratories, manufacturing, quality control, fieldwork, and specialized industries that are used for precise analyses, material preparation, and research.
Tomoe Engineering Co., Ltd., established in 1941 and located in Tokyo, Japan, is a manufacturer of decanter type centrifugal separators. The company offers a range of products, including gravity belt thickeners, HED-type dewatering centrifuges, disc-type centrifuges, rotary snails, and ASM tubular centrifuges, which cater to pharmaceuticals, food, chemistry, ships, electric power, and water treatment. The products are used in sludge dewatering, oil-water separation, clarification processes, liquid-liquid separation, and solids removal. The company’s expertise extends across diverse sectors, such as oil and gas and power generation.
Labnet Oy, established in 1971 and owned by Holdlab Oy, is a Finnish-based importer, exporter, and distributor of life science reagents, consumables, and instruments used in research laboratories, pharmaceutical, biotech industrial, and hospital laboratories applications. The company’s product portfolio includes general laboratory consumables, thermo scientific products, liquid handling equipment, optical instruments & microscopes, and analytical measurement & testing devices. Their product portfolio includes products from various manufacturers including Svar Life Science, Biosan, Promega, PHC Biomedical, and MP Biomedicals.
Sartorius AG was founded in 1870 and specializes in lab products and bioprocess solutions. The company has its headquarters in Gottingen, Germany with locations in major biopharma markets including the Americas and Asia Pacific. Sartorius' range of solutions includes instruments, consumables, and services for chemical, food, biopharmaceutical, and academic laboratories. The company offers automated bioreactors and fermenters, a portfolio of cell culture media, and a range of laboratory essentials such as balances and filtration devices. The company also offers regular preventive maintenance services.
Daigger Scientific Inc., established in 1894 and headquartered in Vernon Hills, Illinois, is a manufacturer and distributor of laboratory equipment and supplies. Serving diverse industries including academia, biotechnology, and pharmaceuticals, its offerings are essential products for analysis, chromatography, sterilization, and more. The product range includes autoclaves for sterilization, precise balances for sample measurement, pipettes for liquid transfer, reagents for chemical reactions, and spectrophotometers for light absorption measurements. The company is designated as a small business, a GSA contract holder, and is CCR registered.
Medline Industries, LP, established in 1966 and headquartered in Northfield, Illinois, is a manufacturer, distributor, and supplier of medical supplies and healthcare products. Their products include beds and mattresses, central sterile, diagnostics, durable medical equipment (DME), gloves, and more. The company serves various industries within the healthcare sector, including hospitals, clinics, long-term care facilities, home healthcare providers, and research institutions. Furthermore, Medline distribution centers have received accreditation under the National Association of the Boards of Pharmacy (NABP) as an accredited drug distributor for prescription (Rx) drugs.
OMRON Corporation is a Kyoto based electrical equipment manufacturing company founded by Kazuma Tateisi in 1933. OMRON’s product portfolio includes medical equipment like nebulizers and digital thermometers, automated teller machines for the finance industry to AC, DC and custom control systems for the oil and gas industries. The company has over 30,000 employees and offers its products and services in 120 countries. It primarily serves the healthcare, energy, casino, and automated test equipment industries.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Labnet Oy |
9.3%
|
| 2 | Medline Industries, LP, |
9.3%
|
| 3 | Cole-Parmer |
9.3%
|
| 4 | Eppendorf North America |
9.3%
|
| 5 | Daigger Scientific Inc. |
7.0%
|
| 6 | Sepor Services LLC Consulting |
7.0%
|
| 7 | Buch & Holm A/S |
7.0%
|
| 8 | Labconco |
7.0%
|
| 9 | Corning Incorporated |
7.0%
|
| 10 | TOMOE Engineering Co., Ltd. |
7.0%
|
Derivation Method
The ranking is calculated based on the click share within the centrifugal concentrator page as of December 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
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
3 | 30.0% |
|
Japan
|
2 | 20.0% |
|
China
|
1 | 10.0% |
|
Italy
|
1 | 10.0% |
|
Denmark
|
1 | 10.0% |
|
Finland
|
1 | 10.0% |
|
Germany
|
1 | 10.0% |
9 products found
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This equipment separates and concentrates solid particles mixed in liquid as sludge. Used in water supply, sewage, wastewater treatment, chemical i...
