Suspension Filter Press (also known as a filter press for suspensions/slurries) is an industrial device designed for solid-liquid separation of suspensions (slurries containing solid particles in a liquid).
It is one of the most common and efficient pieces of equipment used in industries such as mining, chemical processing, wastewater treatment, food processing, pharmaceuticals, metallurgy, and sludge dewatering.
Filter Press Video
Basic Definition
A filter press is a pressure filtration device that forces a suspension (slurry) through filter media (usually filter cloths) under high pressure. The liquid (filtrate) passes through, while solid particles are retained and form a relatively dry filter cake (solid mass).
The term “suspension filter press” typically refers to a standard filter press specifically used for processing suspensions (mixtures where solids are suspended in liquid, often with solid content <10–50% depending on type).
Key Advantages for Suspension Processing
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High solid capture rate (>99%)
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Very clear filtrate (can be reused)
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Dry filter cake → easy to handle/transport/dispose
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Compact design, high capacity
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Suitable for wide range of suspensions (from fine particles to coarse slurries)
Salient Features of Filter Press
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Maintenance can be done without lifting the cartridge, only done has to be lifted.
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Construction follows the latest standard & engineering to perfection.
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Available models – 4, 8, 14, 18, 24 & 33 inches plate diameter.
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Available with centrifugal/gear/lobe pump.
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Fitted with pressure gauge, safety valve & air vent.
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Gives crystal clear filtration.
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All contact parts in SS 304/316/316L.
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High degree of finish to all contact parts.
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Minimum hold up of unfiltered slurry, boost in productivity.
Application of Filter Press
- Pharmaceuticals
- Chemicals
- Food Products
- Beverages
- Distilleries
- Oil Industries
- Dairy Industries
- Paint Industries
Process Operation of Filter Machine
The liquid is fed into the filter of the machine and it is done under positive pressure. Now, the liquid travels downwards and passes through the opening on the sides of filter plates. The filter media holds back foreign particles and enables only clear filtrate to go past the central channel. This central channel is made by interlocking pressure cups to the outlet. The filtration process continues until the cake holding capacity gets saturated or the filtrate rate gets way slower than it must be. This happens due to decreasing cake resistance.
Our meticulously designed filter press is cost-efficient. And you can bet on its efficiency – it helps save every precious drop.
Optional Features in Zero Hold Up Filter Press
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Flame Proof Motor & Starter.
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Viewing Glass & Sampling Port.
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PU Wheels.
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Alfa Laval /Suzler/Rajedia/similar makes Pumps.
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Filter Media as per client’s requirements.
Technical Specification of Filter Press
| Diameter of Plate | No. of Plates | Output LPH | Plate Height | Filtering Area m² | Cake Holding Space m³ | Motor | Size of Pump | Plate Thickness |
| 8 | 4 | 250 | 25mm | 0.1507 | 0.002893 | 1 H.P. | ½” | 1.2mm |
| 8 | 6 | 400 | 25mm | 0.1886 | 0.004340 | 1 H.P. | ½” | 1.2mm |
| 8 | 8 | 500 | 25mm | 0.2260 | 0.00579 | 1 H.P. | ½” | 1.2mm |
| 14 | 8 | 1000 | 38mm | 0.6130 | 0.02778 | 2 H.P. | 1″ | 1.2mm |
| 14 | 10 | 1200 | 38mm | 0.7960 | 003472 | 2 H.P. | 1″ | 1.2mm |
| 18S | 8 | 2500 | 50mm | 1.160 | 0.05007 | 3 H.P. | 1 ½” | 1.5mm |
| 18D | 15 | 5000 | 25mm | 2.169 | 0.04050 | 3 H.P. | 1 ½” | 1.5mm |
| 18D | 12 | 4000 | 50mm | 1.745 | 0.07801 | 3 H.P. | 1 ½” | 1.5mm |
| 18S | 23 | 7000 | 25mm | 3.338 | 0.06349 | 3 H.P. | 1 ½” | 1.5mm |
| 24D | 10 | 9000 | 2.53 | 0.14256 | 5 H.P. | 2″ | 1.5mm | |
| 24S | 18 | 16200 | 4.37 | 0.1132 | 5 H.P. | 2″ | 1.5mm | |
| 24D | 13 | 11700 | 3.22 | 0.18533 | 5 H.P. | 2″ | 1.5mm | |
| 24S | 24 | 21000 | 5.75 | 0.15081 | 5 H.P. | 2″ | 1.5mm |
Note:
- The flow rate is mentioned in terms of water with 5% activated carbon with filter media as polypropylene cloth.
- Filtration rated depends on viscosity of liquids, quality of filter pads and nature of sediments in liquid to be filtered.
* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.
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