Vacuum Disc Filter Bags
We provide vacuum disc filter bags in different materials to achieve the optimal results our customers require. We deliver uncompromising quality to provide reliable and efficient filtration solutions
We deliver worldwide
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Exceptional performance
Our collaboration with Septek Filter over the years has resulted in optimal filter cloth products for dewatering our products, with both long lifespan and high filtering capacity.
We provide vacuum disc filter bags in different materials to achieve the optimal results our customers require. Our bags are custom made according to the disc segment our customer uses. We always aim is to deliver a durable filter bag with a secure and easy installation.
Fabric examples
Our filter bags are made in a range of different fabrics, including:
- Monofilament fabrics with smooth surface and easy cake relase
- Multifilament fabrics for filtration of fine particles
- Durable stretch nylon fabric for exstensive operating hours
- Shrinkable monofilament fabric in Polyproylene
Over 40 years of experience in the filtration
As a supplier and manufacturer of filter press cloths with over 40 years of experience in the filtration industry and extensive collaboration with clients across various industries, we have refined our approach to helping clients achieve optimal filtration performance. Our approach is built upon the following pillars:
- High-quality products. There is a significant performance difference between a high- and low-quality filter press cloth. Striving for the highest quality is therefore our main priority. With every product we make, our goal is to find the best solution to enable more cycles, drier filter cakes, improved cake release, and clearer filtrate, saving clients time and money.
- Unmatched service level. We work closely with our clients to deliver the best possible solution specifically tailored to their application to enable exceptional performance.
- Short lead times. Our clients trust our ability to deliver industry-leading lead times, reducing frictions in their process.
- Innovation. We embrace a forward-thinking approach, constantly striving to deliver cutting-edge solutions that push the boundaries of performance.
All you need to know about our Vacuum Disc Filter Bags
Vacuum disc filter bags are used in vacuum disc filters to separate solids from liquids in various industrial processes, including mining, chemical processing, and pulp & paper production. They play a crucial role in achieving efficient filtration and dewatering by using vacuum suction to pull liquid through the filter while retaining solids as a filter cake.
Common materials include:
- Nylon – High strength and chemical resistance, ideal for high-temperature applications.
- Polypropylene (PP) – Great for general industrial applications with good chemical resistance.
- Kynar (PVDF) – Superior resistance to high temperatures and aggressive chemicals.
Nylon stretch filter bags are recommended when experiencing low flow rates and wet cakes. Without a stretchable design, traditional filter bags may be pulled tightly against the sector, reducing the filtration area. Nylon stretch bags, often paired with backer cloths, allow the entire bag surface to remain active in filtration, improving efficiency.
Backer cloths prevent the filter bag from being sucked against solid sections of the sector, ensuring maximum filtration area is utilized. This can significantly improve cake formation, dewatering, and overall performance of the vacuum disc filter.
A damaged valve can cause timing issues, vacuum loss, or production stoppages. This can result in thinner, wetter cakes and inefficient dewatering. Replacing worn-out valves with high-quality replacement parts ensures proper vacuum control and consistent performance.
Plastic sectors are easier to handle, reduce operator injury risks, and are highly durable. They are widely used in industries such as mining, where reliability and worker safety are top priorities.
Key factors include:
- Operating Temperature – The material must withstand process temperatures.
- Chemical Compatibility – The bag must resist process chemicals and slurry compositions.
- Particle Size & Permeability – Proper fabric selection ensures optimal filtration.
- Durability & Wear Resistance – A longer-lasting filter bag reduces downtime and replacement costs.
Corrugated designs increase the effective filtration surface area by approximately 29%, leading to a 10-25% increase in filter capacity. This also enhances cake release and overall efficiency.
- Slide the bag onto the sector and zip it up securely.
- Fasten clamps to hold it in place.
- Shrink the bag by applying steam or dipping it in hot water (>100°C / 212°F) to ensure a tight fit.
Store filter bags below 30°C (85°F) in a dry, clean environment. Avoid long-term storage exceeding two years, as fabric degradation may occur over time.
Monofilament fabrics have a smooth surface, which improves cake release and allows for faster cleaning and higher filtration efficiency. They are ideal for applications requiring precise filtration and easy maintenance.
Multifilament fabrics have a tighter weave, making them ideal for capturing very fine particles in applications where maximum solid retention is needed.
This fabric shrinks during installation, ensuring a tight and secure fit on the filter sector, preventing leakage, and improving vacuum efficiency.
A properly fitted bag prevents leakage, bypassing of solids, and premature wear. Laser-cut bags offer precise sizing for optimal performance.
A strong, tightly stitched seam prevents particle bypass, ensures structural integrity, and increases service life.
Lab analysis of used filter bags helps identify wear patterns, optimize material selection, and improve future filtration efficiency.
Factors such as temperature, chemical exposure, and vacuum pressure levels determine the best material and fabric structure for long-term durability.
- Regular inspections for wear, tears, or blockages.
- Proper cleaning of filter bags and sectors.
- Ensuring correct installation and tightening.
- Timely replacement of worn-out components, including valves and seals.
By ensuring optimal solid-liquid separation, vacuum disc filter bags improve:
- Throughput capacity
- Cake dryness and dewatering efficiency
- Energy efficiency by maintaining proper vacuum levels
- Reduction in downtime through better durability and longer lifespan
A trusted partner commited to delivering excellence
We take pride in the fact that our products have earned the trust and confidence of numerous leading companies across a diverse range of industries. From renowned mining and minerals companies to reputable players in the paper and pulp sector, as well as those involved in chemical processing and beyond, our solutions have consistently delivered exceptional results.
With our extensive track record and expertise, we have become a trusted partner for businesses seeking reliable and high-performance products. We understand the unique challenges and demands faced by different industries, and our commitment to delivering excellence has earned us a reputation for consistently surpassing expectations. Contact us today to learn more about how our tailored solutions can address your specific application needs.
