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Isostatic Press

Isostatic Pressing is a process used to compact and mold powders and other materials into a desired shape by applying hydrostatic pressure at room temperature. The process is performed using a flexible mold, typically made of rubber or plastic, that is filled with a liquid pressure medium such as water, oil, or a specialized fluid. We mainly provide solutions for lab cold isostatic presses.


KinTek offers top-notch isostatic pressing equipment, manufactured to the highest standards for longevity. Our cold isostatic presses, ranging from desktop to industrial models, can reach pressures up to 500 MPa or even higher, continuously improved and upgraded by our talented engineering team over the past 20 years.

We serve customers worldwide with cold isostatic presses that meet their most demanding requirements, and most of them are in constant use due to regular preventive maintenance and care.

For more information, please don't hesitate to contact us.

Price and customization

Leveraging our advantages in the agglomerated industrial belts and supply chains, we are able to provide cost-effective cold isostatic pressing solutions that feature fast boosting, easy maintenance, Intelligent automatic operation, versatile optional accessories, and safety components designed with your needs in mind.

Our extensive product line provides you with a standard solution that fits your needs, and for more unique applications, our custom design service will help us cater to your specific requirements.

Advantages and applications of cold isostatic pressing

Cold Isostatic Pressing (CIP) offer several advantages over conventional molding techniques such as compression molding. 

The pressure applied during the process compacts the material, increasing its density and helping to eliminate voids, porosity, and other imperfections. The resulting "green body" can then be used as-is or subjected to further processing such as sintering, forging, or hot isostatic pressing.

The pressure applied during CIP is typically in the range of 100 to 500 MPa.

It results in higher product densities compared to compression molding. 

The high density achieved through isostatic pressing can result in improved mechanical properties, such as increased strength and toughness. 

The high relative density of products produced through isostatic pressing, makes it particularly well-suited for the production of high-performance components that require tight tolerances and dimensional stability.

FAQ

What is a lab press?

A lab press, also known as a laboratory press, is a machine used to create compressed pellets from powdered material for various applications such as pharmaceutical development, spectroscopy, and bomb calorimetry. The powders are placed into a die and are pressed into shape by hydraulic action. Lab presses can have a wide range of pressures, from 15 to 200 metric tons, and can accommodate a wide range of different-sized or customized dies. They are commonly used in industries such as pharmaceutical, laminating, rubber and plastic molding, and for R&D work, testing, short runs, limited production, cell manufacturing, and lean manufacturing.

What are the advantages of using a manual press?

Manual presses offer several advantages in industrial and workshop settings. They are simple to operate, requiring minimal training or expertise. The manual operation allows for precise control over the applied force, making them suitable for delicate or precise tasks. Manual presses are often more cost-effective compared to automated or hydraulic presses, making them a popular choice for small-scale operations or workshops with limited budgets. They are portable and do not require a power source, allowing for flexibility in their usage. Manual presses are also known for their durability and reliability, requiring minimal maintenance and having a long lifespan.

How does a manual press work?

A manual press works by utilizing manual force to apply pressure or force on a workpiece. The press typically consists of a frame, a lever or handle, and a mechanism for transmitting and amplifying the force. When the lever or handle is actuated, it moves a ram or plunger that applies pressure to the workpiece. The press may feature adjustable stops or gauges to control the depth or force of the applied pressure. The size and configuration of the press determine the maximum force that can be applied. Manual presses often use mechanical advantage, such as a leverage system, to multiply the force exerted by the operator. The force is transmitted to the workpiece, allowing for various operations like pressing, bending, punching, or riveting.

What types of tasks can be performed using a manual press?

Manual presses are versatile tools that can perform a variety of tasks. They are commonly used for pressing operations, such as assembling parts, forming or bending metal, or compressing materials. Manual presses can also be used for punching or riveting tasks, where holes need to be created or metal components need to be joined together. Additionally, manual presses are employed in tasks like embossing, stamping, or crimping, where pressure is applied to create specific shapes or patterns. The wide range of available dies, molds, or attachments allows for customization and adaptability to different applications.

What is the purpose of a hydraulic press in lab?

A hydraulic press in the laboratory is used to test the strength and durability of materials, investigate the effects of high pressure on different substances, and create pellets for sample analysis. It is a machine that uses fluid pressure to generate a force, which can be used to compress or mold materials. Laboratory hydraulic presses are smaller versions of industrial machines that offer more precision and control. They are commonly used to create KBr pellets for FTIR and general sample pellets for XRF in order to study the elemental composition of materials.

What is cold isostatic pressing (CIP)?

Cold Isostatic Pressing (CIP) is a process used to compact and mold powders and other materials into a desired shape by applying hydrostatic pressure at room temperature. The process is performed using a flexible mold, typically made of rubber or plastic, that is filled with a liquid pressure medium such as water, oil, or a specialized fluid.

How do electric laboratory presses work?

Electric laboratory presses typically consist of a motor-driven ram or piston that applies force to a sample through a platen or die. The electric motor is controlled by a control panel, allowing the user to set and adjust the desired force and speed. The sample is placed between the platens, and as the motor drives the ram, the force is applied, exerting pressure on the sample. This controlled pressure enables various processes such as compression testing, powder compaction, sample preparation, and material synthesis.

What is Isostatic Pressing?

Isostatic pressing is a powder metallurgy process that uses equal pressure in all directions to produce uniform density and microstructure in a powder compact.

What are the benefits of isostatic pressing?

Isostatic pressing provides uniform strength and density, shape flexibility, a wide range of component sizes, and low tooling cost. It also allows for larger parts, enhances alloying possibilities, reduces lead times, and minimizes material and machining costs.

What are the applications of pellet presses?

Pellet presses have a wide range of applications across various industries. They are commonly used in the pharmaceutical industry to produce uniform and compacted pellets for drug formulations. In the food industry, pellet presses are used to create animal feed pellets, as well as pellets for snacks and breakfast cereals. Pellet presses are also used in the chemical industry for catalysts, fertilizers, and chemical additives. Additionally, they find application in the biomass industry for the production of wood pellets for fuel, as well as in the metallurgical industry for the production of metal pellets for further processing.

What are different type of lab presses?

Different types of laboratory presses include manual hydraulic presses, automated hydraulic presses. Manual hydraulic presses use hand-operated levers to apply pressure, while automated presses are equipped with programmable controls to press products more accurately and consistently. When selecting a hydraulic press, it is important to consider the amount of force needed for a specific sample, how much space is provided in the lab, and how much energy and strength is required to pump the press.

What are the advantages of using electric laboratory presses?

Electric laboratory presses offer several advantages over manual or hydraulic presses. The electric motor provides precise control over the applied force, allowing for accurate and repeatable results. They offer adjustable speed and force settings, making them versatile for different applications and materials. Electric presses are generally quieter, cleaner, and more energy-efficient compared to hydraulic systems. Additionally, they eliminate the need for hydraulic fluid and associated maintenance. Electric presses also have a smaller footprint, making them suitable for laboratory environments with limited space.

What are the types of isostatic pressing?

There are two main types of isostatic pressing:

  • Hot Isostatic Pressing (HIP): This type of isostatic pressing uses high temperature and high pressure to consolidate and strengthen the material. The material is heated in a sealed container and then subjected to equal pressure from all directions.
  • Cold Isostatic Pressing (CIP): In this type of isostatic pressing, the material is compacted at room temperature using hydraulic pressure. This method is commonly used to form ceramic and metal powders into complex shapes and structures.

How does a pellet press work?

A pellet press works by feeding the material into a chamber where it is compressed by a rotating roller or extrusion plate. The pressure applied forces the material through a die with holes of a specific size and shape, which determines the size and shape of the pellets. The pellets are then cut to the desired length and collected for further processing or packaging. Some pellet presses may also include additional steps, such as drying or cooling the pellets, depending on the specific application.

How do you prepare pressed pellets for XRF?

Pressed pellets for XRF analysis are prepared by grinding the sample to a fine particle size and mixing it with a binder or grinding aid. The mixture is then poured into a pressing die and compressed at a pressure of between 15 and 35T. The resulting pellet is ready for analysis. It is important to consider the particle size of the sample, choice of binder, sample dilution ratio, pressure used for pressing, and the thickness of the pellet when designing a sample preparation recipe. Consistency in the preparation procedure is key to ensuring accurate and repeatable results.

What are the advantages of cold isostatic pressing?

  • High green strength: Machining of the compacted material in its green state becomes more feasible.
  • Materials that are hard to press: Isostatic pressing can be performed on powders without the need for water, lubricants, or binders, making it applicable to a wider range of materials.
  • Predictable shrinkage during sintering is achieved due to the high compaction and uniform density.
  • Time and cost savings in post-processing are possible due to the ability to create large, complex, and near-net shapes.
  • Large aspect ratio parts with uniform density can be produced, resulting in improved quality.
  • Green strength enables efficient in-process handling and treatment, reducing production costs.

What is a cold isostatic press?

A cold isostatic press (CIP) is a machine used to compact and mold powders and other materials into a desired shape.

The process works by filling a flexible mold, usually made of rubber or plastic, with a liquid pressure medium like water, oil, or a specialized fluid. This mold is then placed in a closed container, and equal pressure is applied to each surface to achieve a high-pressure environment.

The pressure results in an increase in the product's density and allows it to take on the desired shape.

Cold isostatic pressing is performed at room temperature, in contrast to hot isostatic pressing which is carried out at higher temperatures.

What are the applications of electric laboratory presses?

Electric laboratory presses find applications in a wide range of scientific and industrial settings. They are commonly used for compression testing of materials, including polymers, metals, ceramics, and composites. These presses are also employed in powder compaction processes, such as tabletting in pharmaceutical manufacturing or the preparation of powdered samples for analysis. Electric presses are used for material synthesis, such as the formation of thin films or the fabrication of electrodes. Additionally, they are utilized in research and development for sample preparation, sample extrusion, and various other processes that require precise application of force and pressure.

What type of isostatic pressing equipment do you have?

Our primary focus is the production of cold isostatic pressing equipment for both laboratory and industrial use.

What are the benefits of using a pellet press?

A pellet press works by feeding the material into a chamber where it is compressed by a rotating roller or extrusion plate. The pressure applied forces the material through a die with holes of a specific size and shape, which determines the size and shape of the pellets. The pellets are then cut to the desired length and collected for further processing or packaging. Some pellet presses may also include additional steps, such as drying or cooling the pellets, depending on the specific application.

What is manually operated lab press?

A manually operated lab press, also known as a manual hydraulic press, is a type of laboratory equipment that uses hydraulic pressure to compress or compact a sample. It typically consists of a cylinder filled with hydraulic oil that supplies pressure to a moving piston, which is operated using a hand-operated pump. Manual presses are often used in laboratories to prepare samples for analysis, such as KBr pellets for FTIR spectroscopy or general sample pellets for XRF. They are available in different sizes and capacities and are often cheaper than their automatic counterparts.

What pressure should XRF pellets be?

XRF pellets should be pressed at pressures between 15 and 40 tons for 1-2 minutes to ensure that the binder recrystallizes and that there are no void spaces present in the pellet. The pressure applied by the hydraulic press should be enough for the sample to be completely compressed. The thickness of the pellet is also crucial, as it must be infinitely thick to the X-rays. Working with small particle sizes (<50µm or <75µm) is also important for effective analysis. These factors impact how well the sample binds together under pressure, which affects the analytical results.

Application field of cold isostatic press?

Cold Isostatic Pressing is widely used for various applications, including the consolidation of ceramic powders, compression of graphite, refractory materials, and electrical insulators, as well as the production of fine ceramics for dental and medical applications.

This technology is also making inroads into new fields such as pressing sputtering targets, coating valve parts in engines to reduce wear on cylinder heads, telecommunications, electronics, aerospace, and automotive industries.

What considerations should be taken when selecting an electric laboratory press?

Several factors should be considered when selecting an electric laboratory press. The required force capacity should match the specific application and the maximum force expected. The platen size should accommodate the sample size and shape. The speed range and control options should align with the desired testing or processing requirements. It is important to ensure the press is constructed from durable materials and designed for long-term use. Safety features, such as emergency stop buttons and protective shields, should be evaluated. Additionally, the availability of accessories, such as different platens or heating options, can be crucial for specific applications.

What are the wet bag process and the dry bag process?

The CIP molding process is divided into two methods: the wet bag process and the dry bag process.

Wet bag process:

In this method, the powder material is placed in a flexible mold bag and placed in a pressure vessel filled with high-pressure liquid. This process is ideal for producing multi-shaped products and is suitable for small to large quantities, including large-sized parts.

Dry bag process:

In the dry bag process, a flexible membrane is integrated into the pressure vessel and is used throughout the pressing process. This membrane separates the pressure fluid from the mold, creating a "dry bag." This method is more hygienic as the flexible mold does not get contaminated with wet powder and requires less cleaning of the vessel. It also features fast cycles, making it ideal for mass producing powder products in an automated process.

What factors should be considered when selecting a pellet press?

Several factors should be considered when selecting a pellet press. These include the desired pellet size and shape, the material properties, the required production capacity, and the available space and resources. The type and condition of the material being processed, such as its moisture content, particle size, and flowability, can also influence the selection of the pellet press. Additionally, factors such as the power requirements, ease of operation and maintenance, and the availability of spare parts and technical support should be considered. It is important to choose a pellet press that aligns with the specific requirements and objectives of the application to ensure optimal performance and cost-effectiveness.

What is the advantage of XRF pressed pellet technique?

The advantage of XRF pressed pellet technique is that it produces high-quality results with a higher signal-to-noise ratio, allowing for the detection of even the lightest elements. Quantifying the elemental composition without pressed pellets can lead to significant discrepancies between expected and actual values. The grinding of the sample into fine particles and compressing it into a smooth and flat XRF pellet reduces background scattering and improves the detection of emissions. Pressed pellets are also relatively quick, low-cost, and lend themselves to simple and cost-effective automation for higher throughput laboratories.

What are the wearing parts of cold isostatic pressing equipment?

The wearing parts of cold isostatic equipment are mainly various seals, such as various types of seal rings, valve cores and valve seats.

Do you provide matching cold isostatic press molds?

We offer a variety of standard mold shapes for customers to experiment or validate their process. Custom mold design services are also available upon request.

How long is your delivery time? If I want to customize the instrument, how long does it take?

If the items are available in stock, the delivery time is 6-12 days. We also offer customization services for our customers. The lead time for customized products varies depending on the specifications and can take between 25-55 days.

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Catalog of Isostatic Press

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Catalog of Lab Press

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Catalog of Cold Isostatic Press

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Catalog of Electric Lab Press

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Catalog of Lab Isostatic Press Machine

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Catalog of Pellet Press

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Catalog of Manual Lab Press

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Catalog of Xrf Pellet Press

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