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This section provides an overview for stirring tanks as well as their applications and principles. Also, please take a look at the list of 12 stirring tank manufacturers and their company rankings. Here are the top-ranked stirring tank companies as of December, 2024: 1.Cedarstone Industry, 2.JH Stålindustri A/S, 3.JP Sons Engineering.
Table of Contents
A stirring tank is a tank used for stirring.
Different solids, liquids, and gases are placed in a stirring tank to stir and mix them. The shape of a stirring tank is indicated by the ratio of the liquid surface height to the tank's inner diameter. Generally, an efficient ratio is around 1.0 to 1.5.
If the stirring tank is excessively thin, the top and bottom sides of the tank will not be stirred properly and a concentration gradient will easily occur, while if the tank is excessively thick, the tank diameter will increase, requiring a thicker tank.
Stirring tanks are used as the exterior of an agitator that mixes substances. Depending on the use of the stirring tank, components such as coils, jackets, baffles, and nozzles are installed. When installing components, they must not obstruct the flow of liquid through the agitator and must be structurally strong.
Coils and jackets are used for heating and cooling. Baffles are responsible for imparting vertical flow to the horizontal flow of liquid, and for maximum effectiveness, 2 to 8 baffles should be installed for a tank.
Nozzles are used for injecting and draining liquid in the tank, and when gas is injected into the liquid, it can also be put in through nozzles at the bottom of the tank for bubbling.
A stirring tank consists of a motor, reduction gear, shaft sealing device, shaft, stirring blades, and baffles.
The motor rotates and transmits power to the shaft, which, when equipped with a reduction gear, decelerates and increases torque in accordance with the reduction gear. The shaft sealing device will seal the inside of the tank without interfering with rotation. Commonly used shaft sealing devices are gland packings and mechanical seals.
The shaft rotates at the same time as the agitator blades rotate, enabling the liquid to be agitated. Agitation in the stirring tank is caused by thrust and radial forces depending on the shape of the stirring tank blades. In addition, the liquid in contact with the agitation blades flows vertically and horizontally, resulting in the unique behavior of the agitation blades.
The agitated liquid can be further dispersed by baffles installed in the tank. Baffles are used to change the flow from laminar to turbulent. Baffles are especially effective when agitating low viscosity liquids, which tend to become laminar.
The shape of the tank changes the degree of liquid dispersion. The shape of the tank bottom has a particularly large effect on liquid accumulation. Commonly used is a 2:1 semi-elliptical or 10% dish shape. If the ratio of the height of the liquid surface to the tank's inner diameter is 1.2, the tank's inner diameter can be calculated by multiplying the liquid volume by 1.14 and then multiplying by 1/3.
The part that transmits the rotation of the motor to the stirring tank and agitates the material is the agitating blade. The role of the agitation blade can be broadly divided into two: "shearing action," which provides shear force to various parts of the stirring tank, and "circulating action," which provides the formation of a circulating flow. Based on the viscosity of the material to be agitated, an agitation blade with the optimum balance that can achieve the objective is selected.
Typical stirring blades used in stirring tanks are as follows
Propeller Blades
Propeller blades are three-winged agitation blades used on ships. They are not suitable for agitating high-viscosity materials, but are used to prevent sedimentation when individual particles are contained in low-viscosity liquids. Other than that, they are widely used as standard agitation blades due to their cost and compactness.
Disk Turbine Blade
Disk turbine blades are agitator blades consisting of a disk with several blades attached to it. Although they consume a lot of power, they generate a large circulating and shearing action. They can be used for agitation while pulverizing solids, and for agitation with reactions such as gas dispersion and absorption.
Anchor Blade
Anchor blades are agitation blades shaped like a ship's anchor. Generally, these stirring blades are shaped from the bottom of the stirring tank along the wall. Although they can agitate high-viscosity materials, their agitation capacity is not as high as that of other agitator blades.
There are several types of stirring tanks. It is important to select a stirring tank according to the stirring method appropriate for the liquid to be mixed.
Central Agitation
This is a stirring method in which the middle axis of the stirring blade is vertically attached to the center of the stirring tank. This is a common method and is characterized by uniform flow.
Eccentric Inclined Agitation
This is an agitation method in which the stirring blades are installed not in the center of the stirring tank but at an angle to the bottom surface. Even without baffles, turbulent flow can be generated.
Bottom Agitation
This is an agitation method in which the stirring blades are attached from the bottom of the stirring tank. When the stirring tank is large, the attachment of a long shaft becomes unnecessary.
*Including some distributors, etc.
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Cedarstone Industry, established in 1992 and headquartered in Houston, Texas, operates as an industrial stainless steel process equipment manufacturer. The company's main product line comprises stainless steel mixing tanks, stainless aseptic tanks, crystallization reactors, extraction systems, stainless storage tanks, and more. These products cater to a diverse range of sectors, including pharmaceuticals & biotech, industrial chemicals, cosmetic processing, and food & beverage. The company supplies its products to organizations such as Heineken, Anheuser-Busch, Tetra Pak, Coca-Cola, GE Pharmaceuticals, and more.
Buckeye Fabricating Co., established in 1963 in Springboro, Ohio, USA, is a manufacturer of custom steel tanks and vessels. The product range includes storage tanks, pressure vessels, and process tanks, all designed and fabricated to meet the unique requirements of various industries. These products provide essential solutions for storing, transporting, and processing a wide range of liquids and gases. It specializes in delivering optimal-quality, stable, and durable tanks and vessels that meet rigorous industry standards. The tanks find application in industries such as petrochemical, pharmaceutical, water treatment, and more, where safe and efficient containment and handling of substances are paramount.
Sumitomo Heavy Industries, Ltd. (SHI) was established in 1888. SHI offers complete solutions for industrial machinery production and operations, heavy machinery for infrastructure, logistics, and construction, power generation systems as well as systems to reduce pollution, water purification, and ship construction. In addition, SHI also offers various software services including IT solutions.
Shree Bhagwati Group of Companies, established in 1990 and headquartered in Ahmedabad, India, is a manufacturer and designer of machinery and manufacturing plants. The company's product portfolio includes stainless steel storage vessels, stainless steel reactors, high-speed mixers and dispersers, automotive lubricant blend plants, continuous nitration systems, and more. These products cater to a range of sectors, including pharmaceutical & biotech, industrial chemicals, cosmetic processing, and food & beverage. The company serves clients such as Ranbaxy Laboratories Ltd., Aurbindo Pharma Ltd., Sonarome India Ltd., S.K. Industries Pvt. Ltd., Cadila Pharmaceutical Ltd., and many others.
JP Sons Engineering, established in 2016 and headquartered in Ahmedabad, India, is a manufacturer and supplier of chemical agitators and chemical mixing tanks. The company's product range includes ointment manufacturing plants, sugar syrup manufacturing plants, ribbon blenders, paste mixers, double cone blenders, and more. Its clientele includes companies such as Britannia, Arise Enterprise, Cosmetex Speciality Limited, Comfia Industries Pvt. Ltd., Dreamline Global, and others. The company also provides a range of render services, including structure fabrication, induction furnace reconditioning, M.S. & S.S. fabrication, and induction coil reconditioning.
Wenzhou Ace Machinery Co., Ltd., established in 2016 and headquartered in Wenzhou, China, operates as a manufacturer and supplier of industrial economic entities such as machinery, equipment, and fittings. The company's product portfolio includes brewing equipment, dairy production machinery, cosmetics production equipment, food machinery, and pump & valve accessories. These products cater to various sectors, including the food industry, cosmetics, manufacturing, and medical sectors. The company provides its products to more than 30 countries, including the USA, Canada, Sweden, Korea, Australia, and more.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Cedarstone Industry |
25.9%
|
| 2 | JH Stålindustri A/S |
14.8%
|
| 3 | JP Sons Engineering |
14.8%
|
| 4 | Apache Stainless Equipment Corp. |
14.8%
|
| 5 | Nitto Metal Industry Co., Ltd. |
11.1%
|
| 6 | Buckeye Fabricating Co. |
7.4%
|
| 7 | Sumitomo Heavy Industries, Ltd. |
7.4%
|
| 8 | Frank Berg industrial supplies BV |
3.7%
|
Derivation Method
The ranking is calculated based on the click share within the stirring tank 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 (%) |
|---|---|---|
|
India
|
4 | 36.4% |
|
United States of America
|
3 | 27.3% |
|
Japan
|
2 | 18.2% |
|
China
|
1 | 9.1% |
Denmark
|
1 | 9.1% |
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