Stainless Steel Filter Press

Description

Industrial manufacturing processes across the chemical, pharmaceutical, food, and biotechnology sectors often rely on efficient solid-liquid separation to ensure product purity and operational efficiency. Among the most trusted technologies for this purpose is the Stainless-Steel Filter Press. Engineered for heavy-duty performance, sterility, and durability, this advanced filtration equipment is a cornerstone for modern processing plants aiming for zero-defect production.

 

What is a Stainless-Steel Filter Press?

 

  • A Stainless-Steel Filter Press is a specialized industrial filtration machine designed specifically to execute solid-liquid separation under pressure. The fundamental mechanism involves pumping a slurry or suspension into the press, where solids are retained against filter cloths to form a dry, manageable filter cake, while the clarified liquid passes through as clear filtrate.

 

  • Unlike conventional filter presses that utilize polypropylene (PP) or cast-iron frames and plates, a stainless-steel model constructs its frame, filter plates, and contact parts using high-grade stainless steel—most commonly SS 304, SS 316, or SS 316L. This metallurgic distinction provides exceptional structural integrity and chemical resistance.

Working Principle of Stainless Steel Filter Press

  • Filtration Operation & Mechanism

 

    • Pressurized Feed: Liquid is introduced into the machine’s filter assembly under controlled positive pressure.

 

    • Downward Flow & Separation: The fluid flows downward through peripheral openings on the filter plates, allowing the filter media to capture foreign particles while permitting only clear filtrate to pass.

 

    • Central Drainage Channel: Clean filtrate is channeled through a central conduit formed by pressure cups interlocked securely to the outlet.

 

    • Cycle Duration: The filtration run proceeds until the cake capacity reaches full saturation or the flow rate drops significantly as cake resistance builds.

 

System Benefits

 

    • Economical Engineering: Meticulously crafted to deliver exceptional cost efficiency.

 

    • High-Yield Recovery: Designed for optimal performance to ensure zero product waste and maximum liquid recovery.

Technical Specification of Stainless Steel 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

* 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.

Types of Filter Press

Applications of Other Machines

Benefits of Stainless Steel Filter Press

Handles aggressive chemicals, acids, or chlorinated solutions better than coated or plastic alternatives.

Meets GMP standards; ideal for food/pharma with no contamination risk.

Longer lifespan, withstands high pressures/temperatures.

Larger filtration capacity, better cake dryness, and reduced maintenance.

Suitable for small lab-scale to large industrial units.

Key Features of Stainless Steel Filter Press

  • Material: Fully or partially constructed from stainless steel (SS 304/316/316L) for superior corrosion resistance.

 

  • Plates: Stainless steel plates (sometimes combined with PP for non-contact parts); often 7–40+ plates depending on size.

 

  • Closing Mechanism: Hydraulic (common for larger units) or manual.

 

  • Pumps: Often paired with stainless steel diaphragm pumps for food-grade compatibility.

 

  • Design Options: Chamber, membrane, or plate-and-frame; some with drip trays, wheels for mobility, or enclosed systems for aseptic operation.

 

  • Hygiene: Smooth surfaces, easy disassembly, and compatibility with sterilization.

FAQ for Stainless Steel Filter Press

Liquid is fed into the filter assembly under controlled positive pressure. The fluid flows downward through peripheral openings on the filter plates; the filter media captures particles while clear filtrate passes through. Filtrate is directed via a central drainage channel formed by interlocked pressure cups. The cycle continues until the cake reaches full capacity or the flow rate drops significantly due to increasing cake resistance.

All product-contact parts are fabricated from high-grade stainless steel—SS 304, SS 316, or SS 316L. Surfaces feature a high-polish, mirror-like finish for cleanliness and easy sanitation. This construction provides excellent structural integrity, chemical resistance, and durability compared with coated or plastic alternatives.

Key features include easy servicing (only the cover needs to be raised, without lifting the entire cartridge), construction to the latest industry standards, availability in standard plate diameters of 4, 8, 14, 18, 24, and 33 inches, compatibility with centrifugal, gear, or lobe pumps, built-in pressure gauge, safety relief valve, and air vent valve, exceptionally clear particle-free filtrate, and minimal retention of unfiltered slurry for higher productivity.

It is widely used in the pharmaceutical, nutraceutical, herbal, Ayurvedic, biotech, cosmetic, and chemical industries—anywhere reliable solid-liquid separation, sterility, and product purity are required.

It handles aggressive chemicals, acids, or chlorinated solutions better than coated or plastic alternatives; meets GMP standards with no contamination risk (ideal for food and pharma); offers a longer lifespan and withstands high pressures and temperatures; provides larger filtration capacity, better cake dryness, and reduced maintenance; and is suitable for everything from small lab-scale units to large industrial installations.

Standard plate diameters include 4, 8, 14, 18, 24, and 33 inches. Output capacities range from approximately 250 LPH (smaller configurations) up to 21,000 LPH or more, depending on the number of plates, plate height, filtering area, and cake-holding space. Motor power and pump sizes are matched accordingly (e.g., 1 HP to 5 HP and ½″ to 2″ pumps). Power voltage can be adjusted to local requirements.

Yes. The high-grade stainless-steel construction, mirror-polish finish on all contact surfaces, and GMP-compliant design make it ideal for pharmaceutical, food, and biotechnology processes where product purity and zero contamination risk are critical.

Service and upkeep can be carried out without lifting the entire cartridge—only the cover needs to be raised. The design also supports minimal slurry retention and reduced overall maintenance needs, contributing to higher operational productivity and longer equipment life.

Yes. It can be integrated with centrifugal, gear, or lobe pumps according to the specific application and process requirements, giving flexibility across various industrial setups.

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Connect with our engineering team to discuss your specific production requirements. We provide customized, cGMP-compliant machinery solutions designed to optimize your manufacturing facility and maximize output.

Adinath International manufactures high-precision vial powder filling machines and complete packaging lines, providing reliable, hygienic, and efficient solutions for global pharmaceutical industries.

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