A lab filter press is a small pressure filtration system used to separate solids from liquids in laboratory-scale and pilot-scale applications. Slurry is pumped into chambers formed by filter plates and filter cloths. The liquid passes through the cloth while the solids are captured inside the chambers, forming a filter cake.

The result is clean filtrate, dewatered solids, and useful test data that can help determine whether a larger production filter press is the right solution.

Lab filter presses are commonly used to test:

Filter cake dryness
Filtrate clarity
Filtration cycle time
Solids loading
Filter cloth selection
Chemical treatment performance
Production filter press sizing

Our laboratory is equipped with the latest technology and equipment to support our research efforts. We have a team of dedicated professionals who maintain our facilities to ensure they are always in top condition.

Small-scale vacuum tests can be helpful, but they do not always represent full-scale pressure filtration. A lab filter press gives more realistic results because it operates more like a production filter press.

This makes a lab filter press especially useful when you need to understand how your material will behave under pressure, how dry the cake can become, and how clear the filtrate will be after filtration.

For many customers, a lab filter press is the bridge between a small sample test and a full-size industrial filter press.

 Replace Buchner Funnel

A lab filter press can be used across many industries where solids need to be separated from liquids. These compact systems are ideal for research, process development, product testing, wastewater testing, and small-batch filtration.

Common lab filter press applications include:

Wastewater treatment testing
Metal finishing and plating wastewater
Chemical processing
Food and beverage filtration
Pharmaceutical and biotech research
University and research laboratories
Mining and mineral testing
Cosmetic and personal care products
Battery recycling and process development
Industrial sludge testing

For more examples, visit our  Lab Filter Press Applications page.

A lab filter press works by pumping slurry into a set of filter plates lined with filter cloth. As pressure builds, liquid passes through the cloth and exits the press as filtrate. The solids stay behind and form a filter cake inside each chamber.

Once the filtration cycle is complete, the press is opened and the cake is removed. The cake can then be weighed, tested, dried, or analyzed. This gives the operator valuable information about the filtration process before moving to larger equipment.

This process helps answer important questions such as:

How long will the filtration cycle take?
How dry will the filter cake become?
Will the filtrate be clear enough?
What filter cloth should be used?
How large should the production filter press be?

PilotLabFilterPress.com features Met-Chem lab filter presses designed for real-world filtration testing. These systems are built for durability, repeatability, and practical scale-up.

Customers choose Met-Chem lab filter presses because they are:

Made in the USA
Compact for laboratories and pilot plants
Available in manual or hydraulic closure options
Designed for real pressure filtration testing
Useful for filter cloth selection
Ideal for process development and R&D
Supported with replacement parts and filter cloths
Helpful for production filter press sizing

Our lab filter presses are designed to replicate full-scale industrial filtration, giving you better data before investing in a production filter press.

Yes. One of the biggest benefits of a lab filter press is that it can help determine the correct size for a larger production filter press.

By testing your slurry in a lab filter press, you can collect information about cake thickness, cake dryness, cycle time, filtrate clarity, and solids volume. This information can then be used to estimate the size and type of production filter press needed for your process.

This is especially important for customers who are testing a new waste stream, new product, new chemical process, or new wastewater treatment system.

Some customers only need a lab filter press for short-term testing, process development, or a specific project. If purchasing a unit does not make sense right away, a rental option may be a better fit.

Visit our  Lab Filter Press Rental page to learn more about rental options for small, lab, and pilot filter presses.

If you are looking for a lab filter press, laboratory filter press, pilot filter press, tabletop filter press, or small filter press, we can help.

Contact PilotLabFilterPress.com today for pricing, lead time, sizing help, and availability.

Contact sales today to discuss your lab filter press application.

A lab filter press is not just a testing tool—it is an engineering tool used to predict full-scale filtration performance. When properly used, the data collected from a lab filter press can be directly applied to sizing and designing a production filter press.

At PilotLabFilterPress.com, our lab filter presses are designed using the same filtration principles as full-size industrial systems. This allows engineers, operators, and researchers to generate meaningful data that can be used for process design, optimization, and equipment selection.

A properly run lab filter press test can generate critical design data, including:

• Filtration cycle time 
• Filter cake thickness and solids loading 
• Final cake dryness (% solids) 
• Filtrate clarity and suspended solids carryover 
• Filter cloth performance and micron selection 
• Pressure vs. filtration rate behavior 
• Slurry dewatering characteristics 

This data is essential when transitioning from laboratory testing to pilot systems or full-scale production equipment.

One of the most important benefits of a lab filter press is its ability to help size a production filter press.

By analyzing lab test results, engineers can estimate:

• Required filter press plate size 
• Number of chambers needed 
• Total sludge volume per cycle 
• Expected cycle time in production 
• Hydraulic loading and throughput capacity 

This eliminates guesswork and reduces the risk of undersizing or oversizing equipment.

If you are planning to scale up your process, you can also review our  Small Filter Press options for larger pilot-scale testing or visit our  Lab Filter Press Rental page for temporary testing solutions.

Unlike vacuum filtration methods, a lab filter press uses pressure to drive filtration. This is critical because most industrial filter presses operate under pressure, not vacuum.

This means a lab filter press provides:

• More realistic cake formation 
• Better prediction of final cake dryness 
• More accurate filtrate clarity results 
• True simulation of production filtration conditions 

For comparison to basic lab filtration methods, see our  Replace Buchner Funnel page.

PilotLabFilterPress.com is backed by Met-Chem, a company with decades of experience designing and manufacturing industrial filter presses and wastewater treatment systems.

This experience is built into every lab filter press we offer, ensuring that your testing results are not just theoretical—but practical and scalable.

Our goal is simple:
Provide lab filter press systems that generate real data you can trust when designing full-scale filtration systems.