Membrane Filter Press Machine

Engineered for superior dewatering performance, our membrane filter press represents the cutting edge in industrial filtration technology. This advanced system combines traditional filter press functionality with innovative membrane technology to deliver exceptional results across diverse applications.

Membrane Filter Press Manufacturer

Filtering Capacity: 1-10 ton/hour
Weight: 0.5-20 tons
Size: 5*1.3*1.6 m
Applications: chemical,phamaceutical,food,mining,water treatment,electroplating,metallurgy,dye,textile industry.

Membrane Filter Press Definition

A membrane filter press is a filter press that uses a membrane plate along with an ordinary filter plate. It uses more pressure to separate the solids from the liquids. This makes the process more efficient and effective. The membrane filter chamber is made up of membrane filter plates and chamber filter plates. The feeding pump puts the sludge into the chamber. The filter cloth separates the solids and filtrate. When the solids form the filter cake, blow air into the membrane to dry the filter cake more. Diaphragm filter presses are great at reducing moisture content and improving the filtration process.

The membrane filter press is specially designed for thick, sticky materials and requires a higher level of moisture.

The membrane filter press is based on a new and improved way of filtering water using special plates. The plates are connected to a flexible membrane, usually made of high-quality polypropylene (PP), that can be inflated at the end of the filtration cycle. The membrane expansion puts more pressure on the filter cake, which makes it dry out more.

Diaphragm Filter Press Composition

Membrane Plates: These plates are made of polypropylene (PP), a type of plastic. They have a special layer of rubber inside that makes them flexible. They can be filled with air or water after the initial filtration phase.
Ordinary plates: Put them next to membrane plates to make filter chambers.
Filter Cloths: These are placed between each plate. They act as a filter to separate solids from liquids during the filtration process.
Other elements are the same as the common filter press. Control Panel (HMI), Hydraulic Cylinder, Hydraulic Station, Beam, and Drip Tray.

How Membrane Squeezing Reduces Moisture

The membrane squeezing reduces moisture by adding a second phase of mechanical compression that physically forces out liquid your pump pressure can’t remove.

The Basic Mechanism

After your filter press fills with slurry and forms a cake, flexible membranes inflate with high-pressure water (15-17 bar). These membranes physically squeeze the filter cake from all sides.

The Key Comparison

Think of it like this:

Regular filtration = wringing a sponge by hand
Membrane squeezing = putting that sponge in a hydraulic press

Mechanical Compression vs. Hydraulic Flow

The key difference lies in the physics:

Traditional Filter Presses

Rely on pump pressure (6-8 bar)
Push liquid through the cake
Hit a wall when cake resistance builds
Limited by hydraulic flow dynamics

Membrane Technology

Uses inflatable membranes
Applies direct mechanical pressure (15-17 bar)
Physically compresses the cake itself
Bypasses flow resistance limitations

How the Squeezing Process Works

The inflatable membranes apply direct, uniform pressure to the cake itself. This process:

Compresses solid particles together
Physically expels trapped moisture
Forces liquid through pore spaces
Creates isostatic pressure (equal force from all directions)

Why Isostatic Pressure Matters

The cake can’t channel or escape
Every bit gets compressed uniformly
No weak spots or bypass routes
Maximum moisture extraction

The Measurable Results

The results speak for themselves:

30-50% moisture reduction compared to standard presses
Final moisture content: 40-45% (vs. 70% without squeezing)
Cycle time reduction: 50% faster
Pressure applied: 15-17 bar vs. 6-8 bar standard

The Fundamental Difference

How Standard Presses Work

Pumps push liquid through the cake
Process stops when resistance builds
Leaves significant trapped moisture
Limited by cake permeability

How Membrane Squeezing Works

Membranes squeeze liquid out of the cake
Compacts the solids themselves
Accesses bound and capillary water
Not limited by flow resistance

How to Reduce Filter Cake Moisture with Membrane Filter Press

The diaphragm filter press has two plates: a diaphragm plate and a standard plate. The plates are arranged in alternating layers.

For the first cycle of filtration, sludge or slurry is pumped into the chamber. The solids collect on the filter cloth, forming a filter cake. Inflation of the membrane: After the first cycle of filtering is done, the membranes in the filter plates will be filled with air or high-pressure water. This expansion puts more pressure on the filter cake, compacting it and squeezing out any remaining moisture. Squeezing out water and reducing moisture. Applying this pressure increases the dry solids concentration of the filter cake, effectively reducing its moisture content. This process makes the filter cake drier.

Membrane Filter Press Working Principle

Membrane filter press plates have a chamber below the drainage surface that can be inflated. The most common method uses water pressure. Water is pumped into the squeeze cavity to inflate the plate against the filter cake. Membrane plates are used to reduce the moisture content of the cake and shorten the filtration cycle time.

At the start of the filtration cycle, the process is similar to the Chamber Filter Press. This is called the “fill and filtration” phase. When the pressure reaches a predefined level (usually around 5–7 bar, depending on the sludge characteristics), sludge feeding is stopped. Then, rubber membranes are inflated using water or air as a squeeze medium. The cake is compressed and dewatered some more. Then, the pressure on the medium is released and the cake is removed.

For those with a filter cake washing system, the filter cake will be cleaned before unloading. This design can pass clean water through the washing port of the filter plate to clean the filter cake and remove any remaining impurities. You can also use compressed air to dry the filter cake through the washing port. This is especially helpful in industries like pharmaceuticals and food production, where filter cake purity is crucial. The washing process of membrane filter presses can be changed to meet specific needs to get the best results.

Membrane Filter Press Parameters

Model	Filter area (m2)	Plate size (mm)	Cake thickness (mm)	Filter chamber volume (L)	Plate Quantity (pcs).	Filtration pressure (Mpa)	Motor Power(Kw)	Weight (Kg)	Dimensions LxWxH(mm)
XMGY30/870-U	30	870*870	≤35	498	23	≤0.8	4	3046	388012501300
XMGY40/870-U	40	870*870	≤35	623	29	≤0.8	4	3593	427012501300
XMGY50/870-U	50	870*870	≤35	789	37	≤0.8	4	4057	479012501300
XMGY60/870-U	60	870*870	≤35	955	45	≤0.8	4	4597	531012501300
XMGY70/870-U	70	870*870	≤35	1121	53	≤0.8	4	5136	583012501300
XMGY80/870-U	80	870*870	≤35	1287	61	≤0.8	4	5636	635012501300
XMGY50/1000-U	50	1000*1000	≤35	776	27	≤0.8	4	4352	427015001400
XMGY60/1000-U	60	1000*1000	≤35	943	33	≤0.8	4	4480	477015001400
XMGY70/1000-U	70	1000*1000	≤35	1109	39	≤0.8	4	5263	513015001400
XMGY80/1000-U	80	1000*1000	≤35	1275	45	≤0.8	4	5719	556015001400
XMGY100/1000-U	100	1000*1000	≤35	1608	57	≤0.8	4	6555	641015001400
XMGY120/1000-U	120	1000*1000	≤35	1941	69	≤0.8	4	7466	726015001400
XMGY80/1250-U	80	1250*1250	≤40	1560	29	≤0.8	5.5	10900	483018001600
XMGY100/1250-U	100	1250*1250	≤40	1975	37	≤0.8	5.5	11750	544018001600
XMGY120/1250-U	120	1250*1250	≤40	2391	45	≤0.8	5.5	12600	606018001600
XMGY150/1250-U	150	1250*1250	≤40	2911	55	≤0.8	5.5	13620	682018001600
XMGY160/1250-U	160	1250*1250	≤40	3119	59	≤0.8	5.5	14470	713018001600
XMGY200/1250-U	200	1250*1250	≤40	3847	73	≤0.8	5.5	15320	820018001600
XMGY240/1250-U	240	1250*1250	≤40	4679	89	≤0.8	5.5	16170	942018001600
XMGY250/1250-U	250	1250*1250	≤40	4783	91	≤0.8	5.5	17020	957018001600
XMGY200/1500-U	200	1500*1500	≤40	3809	49	≤0.8	11	26120	714022001820
XMGY250/1500-U	250	1500*1500	≤40	4723	61	≤0.8	11	26930	773022001820
XMGY300/1500-U	300	1500*1500	≤40	5637	73	≤0.8	11	28160	872022001820
XMGY350/1500-U	350	1500*1500	≤40	6551	85	≤0.8	11	29600	1011022001820
XMGY400/1500-U	400	1500*1500	≤40	7618	99	≤0.8	11	31500	1126022001820
XMGY450/1500-U	450	1500*1500	≤40	8532	111	≤0.8	11	33400	1225022001820
XMGY500/1500-U	500	1500*1500	≤40	9446	123	≤0.8	11	33380	1324022001820
XMGY600/2000-U	600	2000*2000	≤40	11901	85	≤0.8	15	54164	1303030002500
XMGY700/2000-U	700	2000*2000	≤40	13838	99	≤0.8	15	58300	1439030002500
XMGY800/2000-U	800	2000*2000	≤40	14945	107	≤0.8	15	62460	1577030002500
XMGY900/2000-U	900	2000*2000	≤40	17713	127	≤0.8	15	66620	1715030002500
XMGY1000/2000-U	1000	2000*2000	≤40	19651	141	≤0.8	15	70780	1853030002500

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