Online Filter Press

A Online Filter Press is an industrial machine used for solid-liquid separation through pressure filtration. It pumps a slurry (mixture of solids and liquids) into chambers formed by filter plates, where pressure forces the liquid (filtrate) through filter cloths, leaving behind a dry solid cake.

Online Filter Press Video

How It Works

1. Closing the Press — Hydraulic or manual systems clamp a series of filter plates together, creating sealed chambers lined with filter cloths.

2. Filling — A pump feeds the slurry into the chambers under increasing pressure.

3. Filtration — Liquid passes through the cloths and exits via ports, while solids build up as a cake in the chambers.

4. Cake Drying (Optional) — Air or water may blow through to further dewater the cake.

5. Opening and Discharge — Plates separate, and the dry cakes drop out for removal.

6. Cycle Repeat — The process is batch-based, with cycles lasting 30 minutes to several hours depending on the material.

This results in very dry cakes (often 25–40% moisture or lower) and clear filtrate, making it efficient for dewatering.

Common Applications

• Wastewater and sludge treatment (municipal/industrial)

• Mining and aggregates (tailings dewatering)

• Chemical, pharmaceutical, and food processing

• Maple syrup filtration and metal finishing

Types

• Recessed chamber (most common)

• Membrane/diaphragm (for extra squeezing)

• Plate and frame

Salient Features of Filter Press

• Maintenance can be done without lifting the cartridge, only done has to be lifted.

• Construction follows the latest standard & engineering to perfection.

• Available models – 4, 8, 14, 18, 24 & 33 inches plate diameter.

• Available with centrifugal/gear/lobe pump.

• Fitted with pressure gauge, safety valve & air vent.

• Gives crystal clear filtration.

• All contact parts in SS 304/316/316L.

• High degree of finish to all contact parts.

• 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 Online Filter Press

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

• Flame Proof Motor & Starter.

• Viewing Glass & Sampling Port.

• PU Wheels.

• Alfa Laval /Suzler/Rajedia/similar makes Pumps.

• Filter Media as per client’s requirements.

Technical Specification of  Filter Press

Note:

1. The flow rate is mentioned in terms of water with 5% activated carbon with filter media as polypropylene cloth.
2. 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.