Filter Press

What is a Filter Press?

A filter press is a mechanical dehydration device that uses filter cloth to separate solids and liquids in different slurries.

The structure of the whole machine is simple, mainly consisting of filter plates, filter cloth, Beam, and hydraulic station, the separation effect is good, the operation is convenient, and the application range is wide. It is widely used in the fields of mining, petroleum, chemical industry, medicine, papermaking, food, coal washing, dying and waste water treatment.

Filter presses come in a variety of types and sizes and can be customized to meet the requirements of a specific application. Different types of filter presses include plate and frame filter presses, membrane filter presses, chamber filter presses, vertical press filter, belt filter press etc. Choosing a suitable filter press depends on the nature of the material to be filtered, the capacity and the required separation efficiency.

Uniwin manufactures many types of filter presses and filter press supporting equipment and accessories. We can choose a suitable filter press for you or customize a filter press according to your needs.We can also provide control panels to control the operation of the filter press as well as the operation of the pumps.

Different Types of Filter Presses

plate and frame filter press

Plate and Frame Filter Press

Introduction to Plate and Frame Filter Press: The plate and frame filter press is widely used for solid-liquid separation in various industries. It is known

Membrane Filter Press

Membrane Filter Press

Membrane Filter Press A membrane filter press is a filter press that uses a membrane plate in combination with an ordinary filter plate. It uses

stainless steel filter press

Stainless Steel Filter Press

Introduction Stainless steel filter press, also known as stainless steel plate and frame filter press, is a continuous pressure solid-liquid separation equipment made of stainless

Verticle Filter Press

Vertical Filter Press

Vertical Filter Press Introduction: Automatic vertical filter press (VPA), also called filter cloth-run type fully automatic filter press. It is firstly appeared in the former

gasketed cgr filter press

Gasketed CGR Filter Press

Gasketed CGR Filter Press Introduction: The gasketed CGR( Caulked Gasketed Recessed ) filter press is a filter press with gasketed filter cloth. What distinguishes a

mobile filter press

Automatic Mobile Filter Press

The mobile filter press is a filter press with a frame on the outside. It is usually installed on a special transport vehicle and can

Filter Press Supporting Equipment

Filter Press Accessories

filter plate

A filter press plate is a component of a filter press machine used in solid-liquid separation processes. We can make cast iron plate and frame filter plates,304/316 stainless steel filter plates, PP filter plates, round filter plates, high-pressure filter plates that can bear 2.0 Mpa pressure, etc. 

filter press cloth

A filter press cloth is a specially designed fabric used primarily for solid-liquid separation processes. The filter cloths are crucial to the filter press’s operation.Filter cloths can be made from a variety of materials, including polyester, polypropylene, nylon, polyethylene, and others.


The filter plate handle plays the role of fixing the filter plate, carrying biological filter material, and separating the water and gas distribution chamber. Common filter plate handles can be divided into wheeled handles and wheelless handles.

A filter press pressure gauge is a device that measures pressure during filter press operation. The operator can use the pressure gauge to understand the pressure inside the filter press in real time so that necessary adjustments and controls can be made to ensure the normal operation of the filter press.

plate shifter

A filter press pressure gauge is a device that measures pressure during filter press operation. By monitoring the pressure gauge, the operator can understand the pressure inside the filter press in real-time so that necessary adjustments and controls can be made to ensure the normal operation of the filter press.

filter press taps

The filter press water taps are installed on the outlet pipes on both sides of the filter plate of the open-flow filter press. It is a device that opens and closes the water medium and controls the water flow at the outlet of the filter press. It is suitable for different filtration processes.

How to Operate the Filter Press

1. Turn on the power switch, and the power indicator light will turn on;

2. Press the “start button,” and the feed pump starts to work;

3. Move all filter plates to one end of the thrust plate and place them between the two beams;

4. Start the compression button, and the piston pushes the compression plate to compress all filter plates. When the compression force reaches the pressure value, the hydraulic system automatically jumps to maintain pressure. Press the off button, and the feed pump stops working;

5. Hidden flow: Open the filtrate valve to release the liquid. Open flow: Open the faucet to release liquid. At the same time, open the feed valve and perform filtration;

6. After the filter chamber is full, close the feed valve and stop filtering;

7. If the filter press is equipped with an automatic flushing system, open the water nozzle, then open the washing water valve, and enter the water for washing;

8. Start the feed pump, press the compression button, wait until the locking nut is tightened, and then press the release button. After the compression plate returns to the appropriate working gap, turn off the motor;

9. Pull open the filter plate to unload the filter cakes;

10. Check the filter cloth and filter plate, and clean the residue on the joint surface. If there are no problems, you can enter the next work cycle.

Filter Press Applications

Filter Result

Filter Press FAQ

A filter press is a mechanical device used to separate liquids and solids by applying pressure to separate liquids from solid particles. These solid particles can be solid particles or slurries suspended in liquids, such as solid waste in sewage, solid matter in chemical treatment processes, residues in food processing, etc.

1. The liquid mixture to be treated is introduced into the automatic filter press.
2. The slurry passes through the filter cloth, while the solid particles are retained on the filter cloth to form a solid filter cake.
3. During the filtration process, liquid is separated and collected to form filtrate.
4. Once filtration is complete, open the plate to discharge the filter cakes, transfer the filter cakes away by the belt conveyor under the filter press, to make it available for further processing or disposal.

1. Processing capacity: First, determine how much processing capacity your application requires. This will determine the size and capacity of the filter press. Different types of filter presses have different processing capacity ranges, so choose the right size based on your needs.
2. Solid-liquid separation performance: Different filter press types and specifications have different solid-liquid separation performance. You need to consider the nature of the solids and liquids involved in your application to determine which type of filter press is best suited.
3. Pressure and temperature requirements: Determine the required pressure and temperature range according to the needs of the application. Different types of filter presses can operate under different pressure and temperature conditions, so make sure the machine you choose can meet these requirements.
4. Automation level: Determine whether your application requires automated control and monitoring capabilities. Some filter presses are equipped with advanced automatic control systems that increase efficiency and reduce operator intervention.

1. Make sure operators have received appropriate training on equipment operation and safety procedures.
2. Strictly control and monitor the pressure to ensure that it does not exceed the design working pressure range of the equipment.
3. Clean and maintain the equipment regularly to ensure the performance and life of the equipment.
4. Regularly monitor and record the operating parameters of the filter press so that problems can be discovered promptly and corrective measures can be taken.
5. Make sure there are emergency shutdown devices and emergency handling plans near the equipment.

The moisture content of the filter press has a lot to do with the type of sludge and the treatment process. It cannot be generalized, but it has a rough range for reference. The moisture content of the mud pressed out by the plate and frame filter press can usually reach 50— 75%, the moisture content of the membrane filter press is 30-60%, and the high-pressure filter press can squeeze the waste residue to a moisture content of less than 30%.
The work of the filter press will go through four stages: feeding, filtering, pressing and discharging. Therefore, in order to achieve the purpose of appropriately reducing the moisture content of the filter cake, the time of this process can be intentionally increased.

Send Inquiry Now!