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Hydraulic Filter Press
SPECIFICATION
STRUCTURE
CAST IRON / MILD STEEL
SIZES / Nozzle
12" TO 48" / SS 304/PP
CLOSING DEVICE TYPE
MANUAL, RATCHED GEAR, HAND HYDRAULIC AND POWER HYDRAULIC
WORKING PRESSURE
UPTO 7 kg/cm2
FILTER MEDIA
PP/NYLON/ POLYESTER/ COTTON
WORKING TEMP.
UPTO 60 C
overview
Hydraulic Filter Press: Reliable Filtration for Industrial Applications
In many industries, separating solids from liquids is a routine but critical task. From wastewater treatment and chemical processing to food manufacturing and mining, filtration plays a vital role in keeping operations efficient, clean, and compliant. Among the different types of filtration systems available today, the hydraulic filter press stands out for its pressure efficiency, reliability, and adaptability across industries.
At Vasu Pharmatech, we design and manufacture hydraulic filter presses that meet the practical needs of industrial users. This article aims to explain the working, benefits, components, and key considerations of a hydraulic filter press so you can make informed decisions for your plant or process.
Comparison Table: Manual vs. Hydraulic Filter Press
| Feature | Manual Filter Press | Hydraulic Filter Press |
|---|---|---|
| Operation | Manual effort required | Automatic hydraulic control |
| Pressure Consistency | Variable | Consistent and adjustable |
| Labor Requirement | High | Low to moderate |
| Cake Dryness | Moderate | High |
| Throughput Speed | Slower | Faster |
| Maintenance Needs | More frequent | Predictable and lower |
| Safety Level | Lower | Higher due to control systems |
How Does a Hydraulic Filter Press Work?
The operation of a hydraulic filter press can be broken down into several key steps. While the design might vary slightly between manufacturers, the core process remains largely the same.
Plate Closing: The hydraulic cylinder pushes the filter plates together, sealing them tightly to create filtration chambers.
Slurry Feeding: The slurry is pumped into the press. As pressure builds, the liquid passes through the filter cloths while solids remain inside the chambers.
Cake Formation: Over time, solids accumulate between the plates and form dense cakes.
Filtration Completion: Once the chambers are full and the filtrate flow drops, the feeding stops.
Plate Opening: The hydraulic system retracts, separating the plates.
Cake Discharge: Filter cakes drop from the plates, ready for disposal or further processing.
This entire cycle can be semi-automated or fully automated depending on your setup and production needs.
Benefits of Using a Hydraulic Filter Press
Switching from manual or outdated filtration systems to a hydraulic filter press can significantly improve your process. The benefits are both operational and financial.
1. Higher Filtration Pressure
Hydraulic systems allow for consistent and higher pressure levels (typically between 8 to 16 bar or more). This improves the dryness of the filter cake and speeds up the cycle time.
2. Reduced Labor
With automatic plate shifting and hydraulic movement, manual intervention is minimized. This frees up staff to focus on other tasks and reduces workplace fatigue.
3. Improved Safety
A controlled hydraulic system is safer to operate than manual presses. Safety features like pressure relief valves and lockout mechanisms are often built-in.
4. Better Cake Quality
Uniform pressure leads to consistent cake thickness and dryness, which is important if the solid waste is to be reused or further processed.
5. Lower Moisture Content
Less moisture in the discharged solids means lower transportation costs, better waste handling, and improved drying time when required.
Where Is a Hydraulic Filter Press Used?
Hydraulic filter presses are used in a wide range of industries that generate slurry, sludge, or wet solids. Their design allows them to be adapted for various capacities and types of material.
Common Applications Include:
Wastewater Treatment Plants (STPs & ETPs)
To dewater sewage and industrial sludge efficiently.Chemical Manufacturing
For filtering process liquids and recovering chemical solids.Pharmaceutical Industry
Where precision filtration is essential for purity and compliance.Food and Beverage Processing
For separating pulp, removing excess water, or clarifying liquids.Mining and Minerals
To recover fine minerals from slurry or process tailings.Oils and Fats
As a hydraulic oil filter press, it can clarify edible oils or treat oil-bearing effluent.
Each application has its own requirements, and that’s why filter press design must be tailored to suit the specific use case.
Understanding Filter Press Hydraulic Pressure
Pressure is the driving force behind the filter press operation. In a hydraulic system, the pressure applied to the plates is far more consistent than what can be achieved manually. This consistency is crucial for:
- Achieving a proper seal between plates
- Maximizing the filtration rate
- Ensuring dry and uniform cakes
- Preventing leakage or slurry bypass
Hydraulic systems can also be adjusted for different pressure settings depending on the slurry characteristics. For example, viscous or oily materials may require higher pressures to filter effectively.
testimonials
What Our Clients Say About Us
5/5
PP Filter Press
Vasu’s PP Filter Press gave us consistent output with zero downtime. Quality is better than other vendors.
Sanjay Patel
Ahmedabad
5/5
MBBR Media
We switched to Vasu’s MBBR Media in our ETP plant. Biofilm grew faster and media remained stable under load.
Neeraj Saini
Bhopal
5/5
Tube Deck Media
Tube Deck Media from Vasu reduced our settling time and sludge issues. Good performance in compact STPs.
Pooja Trivedi
Jaipur
5/5
Coarse Bubble Diffuser
Coarse Bubble Diffuser gave even air distribution. Setup was quick and it’s been running well for over a year.
Manish Goyal
Nashik
5/5
Fine Bubble Diffusers
We installed Fine Disc Diffusers in our plant. Noticed better oxygen levels and lower energy use immediately.
Anisha Roy
Kolkata
5/5
Tube Settler Media
We trust Vasu for Tube Settler Media. The material quality is great and works efficiently even in high TSS.
Nisha Bhandari
Udaipur
5/5
PP Filter Press
We’ve been using PP Filter Press from Vasu for 2+ years. Strong build, smooth performance, and zero leakage issues.
Ramesh Verma
Vadodara
5/5
MBBR Media
Vasu’s MBBR Media helped improve our STP output quickly. No clogging, fast biofilm growth, and great durability.
Ankit Sharma
Pune
5/5
Tube Deck Media
After installing their Tube Deck Media, settling improved instantly. Easy to handle and works well in clarifiers.
Meena Desai
Indore
Importance of Hydraulic Oil and Maintenance
Hydraulic oil is what makes the entire system function. The quality and condition of this oil affect everything from cylinder movement to pressure consistency. Over time, oil degrades or becomes contaminated, which can lead to poor performance or system failure.
To keep your hydraulic oil filter press in good shape:
- Use only recommended oil grades
- Check for contamination or cloudiness
- Replace oil at regular intervals
- Ensure seals and hoses are in good condition
Ignoring these small steps can lead to costly downtime and repairs.
Choosing the Right Filter Press for Your Needs
Every industry and process has different filtration requirements. Before choosing a hydraulic filter press, consider the following factors:
Slurry Type: Understand the composition, viscosity, temperature, and abrasiveness.
Filtration Volume: Estimate how much slurry needs to be processed per batch or per hour.
Plate Size and Number: Larger plates and more of them increase capacity but require more space and structural support.
Cycle Time: Faster cycle times mean higher throughput, but pressure and cake quality should not be compromised.
Automation Level: Decide between manual, semi-automatic, or fully automatic depending on your manpower and operation scale.
Cake Handling Needs: Do you need dry cakes for disposal, reuse, or further treatment?
Working with a manufacturer like Vasu Pharmatech ensures these factors are considered carefully before finalizing the design.
How to Choose the Right Hydraulic Filter Press for Your Industry
- Identify your application: Understand the type of slurry and solid-liquid separation needs.
- Choose suitable materials: Opt for corrosion-resistant SS 304 for chemicals or robust cast iron for heavy-duty tasks.
- Select the right size: Base it on your daily filtration volume (12″ to 48″ options available).
- Evaluate closing mechanism: Choose manual, ratchet gear, hand hydraulic, or power hydraulic depending on your operation scale.
- Consider temperature and pressure: Ensure the press supports up to 60°C and 7 kg/cm² pressure.
- Check media compatibility: Use appropriate filter media like PP, nylon, polyester, or cotton.
- Automation requirements: Decide if semi-automatic or fully automatic is needed for labor or production efficiency.
Conclusion
In industrial filtration, efficiency isn’t just a target—it’s a necessity. Whether you’re dealing with wastewater, chemical slurry, or food processing residue, the ability to separate solids from liquids quickly and effectively impacts everything: your cost of operations, waste disposal process, energy usage, and even regulatory compliance. A reliable system ensures minimal downtime, consistent output quality, and smoother day-to-day operations. When your filtration system works seamlessly, your entire production line runs better.
A hydraulic filter press offers a tested and proven solution for companies aiming to upgrade their filtration process. It combines the power of hydraulic pressure with a well-structured plate system to deliver high performance even in demanding conditions. Whether your priority is reducing moisture in the filter cake, lowering labor involvement, or increasing the volume processed per cycle, a hydraulic filter press addresses all of these with remarkable effectiveness. Unlike manual systems that depend heavily on operator strength and timing, hydraulic presses provide controlled, consistent, and automated pressure, ensuring repeatable results and drier solids.
At Vasu Pharmatech, we understand that filtration is more than just a mechanical step—it’s a critical function that influences product quality, waste management, and plant efficiency. Over the years, we’ve worked with clients across diverse sectors—textile, pharmaceuticals, metal processing, food and beverage, and chemical industries—each with their own unique filtration challenges. What they all have in common is the need for a system that works reliably, consistently, and economically.
FAQ
Frequently Asked Question
- High filtration efficiency
- Strong pressure control (up to 7 kg/cm²)
- Suitable for various filter media like PP, polyester, cotton
- Available in manual and power hydraulic options
- Handles high-temperature applications (up to 60°C)
Industries that commonly use hydraulic filter presses include:
- Pharmaceuticals
- Chemicals and dyes
- Food and beverage
- Mining and metallurgy
- Wastewater treatment
Choose filter media based on:
- Type of slurry (acidic, basic, oily, etc.)
- Temperature tolerance
- Particle size
Common choices: - Polypropylene (PP) – for chemical resistance
- Nylon – for fine filtration
- Cotton – for natural and eco-friendly applications
- Polyester – for high durability
About The Author
Lalit Nankani
Managing Partner, Vasu Pharmatech
Lalit Nankani has over 12 years of experience in the filtration and water treatment industry. He leads Vasu Pharmatech, a trusted name in making PP Filter Press Systems, MBBR Filter Media, and other filtration products.
Under his leadership, the company has delivered high-quality solutions to many industries like pharmaceuticals, chemicals, food and beverage, textiles, and wastewater treatment. Lalit believes in providing strong, easy-to-use, and cost-effective systems that help businesses clean and reuse water.
In-house Manufacturing Images
★★★★★ 5/5
Reviews and Ratings
We certify that M/s. Vasu Pharmatech, located at 66B, Pocket AD Shalimar Bagh, Delhi-110088, supplied us with a Pharmatech filter press for our 275 KLD ETP plant at M/s. Asian Colour Coated Ispat Ltd. in Bawal, Dist: Rewari (Hr.). The plant was started in January 2018 and is still working well. The product and its performance have been satisfactory up to now.
ASIAN COLOUR COATED ISPAT LIMITED
Rewari, Haryana
