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Sludge Dewatering Bag 0.5 m³ – F-BAG L (Gravity Filter Bag)
Reliable Sludge Dewatering for Medium Volume Flows
The WINKLER sludge dewatering bag F-BAG L (0.5 m³) is a proven solution for reliably separating solids and liquids in industrial wastewater. As a gravity filter bag, it enables simple, cost-effective sludge dewatering with no technical plant required and can be used flexibly at different sites.
With a usable volume of 0.5 m³, the filter bag is particularly well suited to applications with regularly occurring sludge volumes, where smaller filter bags would fill up too quickly but larger versions aren't necessary. This gives the F-BAG L an excellent balance between capacity and easy handling.
Made from polypropylene needle felt, the filter material combines mechanical strength with resistance to acids and alkalis, so it copes well with a wide range of industrial process waters.
Typical Applications
The filter bag is particularly well suited to applications where sludge needs to be dewatered directly on site:
- Vehicle and machinery wash bays
- Concrete processing and concrete plants
- Recycling operations and construction sites
- Industrial process wastewater
Reliable solids separation protects downstream plant and stabilises operations.
As a versatile standard size, the F-BAG L covers a broad range of industry sectors. It's the first choice for sludge separation in civil engineering, in processes across the chemical industry, or for water treatment in the energy & environment sector. It also performs reliably in construction, on agricultural operations and for dewatering tasks in transport & logistics.
How Gravity Filtration Works
No pumps, no power supply, no electronics: the sludge-water mix simply flows into the bag, gravity does the rest. Solids remain trapped in the filter material, and the water that drains out can be discharged in a controlled way or reused.
The generously sized filter area keeps water flow stable, so the filter bag can be used over a longer period before it needs emptying.
The F-BAG L is particularly well suited to businesses that need a reliable, mobile dewatering solution for medium sludge volumes.
Your Benefits in Practical Use
The F-BAG L is built for daily use in industry and trades. Its sturdy construction ensures safe handling even with higher solids content.
- Balanced capacity: 0.5 m³ usable volume for medium batches.
- Robust build: Suited to industrial applications.
- Chemically resistant: Stands up to acidic and alkaline media alike.
- Efficient dewatering: Water passes through freely for a fast process.
- Safe handling: Reinforced lifting loops make transport and removal easier.
Which Filter Bag Is Right for You? F-BAG Series Size Comparison
The right size depends mainly on your sludge volume, batch size and site conditions. This comparison helps you quickly identify the right filter bag variant:
| Variant | Usable volume | Application range | Typical use |
| F-BAG M | 0.125 m³ | Small batches | Short-term use or smaller sludge volumes in limited space. |
| F-BAG L | 0.5 m³ | Medium volume flows | Regular dewatering with a good balance of size and handling. |
| F-BAG XL | 0.8 m³ | Larger batches | For higher sludge volumes and longer dewatering intervals. |
| F-BAG XXL | 1.25 m³ | Industrial use | Maximum capacity for large volume flows and heavy industrial sludge. |
| F-BAG Custom Size (GE Vernova) | Custom size | Special installation situations | Precision-fit filter bags for shaft systems or special containers with limited height. |
Alongside standard sizes, custom-made filter bags are also available. Bespoke sizes are especially well suited to existing plant or special installation situations where standard dimensions don't fit.
WINKLER F-BAG L Filter Bag: Technical Details
| Material | Polypropylene needle felt |
| Usable volume | 0.5 m³ |
| Dimensions | Height 0.70 m |
| Base area | 0.90 × 0.80 m |
| Straps | 280 mm overhang |
| Load ratings | 400 kg / 600 kg / 900 kg |
| Micron rating | nominal 100 µm, resistant to acids and alkalis |
| Water permeability | 135 l s-1 m-2 at 100 mm water column |
| Delivery time | 1–2 working days |
Advice From Our Filtration Specialists
Want to know whether the F-BAG L is the right size for your application? We offer sound filtration advice to help you choose the right filter bag size, so your sludge dewatering is reliable and cost-effective.
FAQ – Sludge Dewatering Bag 0.5 m³ for Medium Sludge Volumes
Common Questions About Sludge Dewatering With Medium-Sized Filter Bags The 0.5 m³ filter bag is one of the most commonly used sizes for mobile sludge dewatering. It offers a good balance of capacity, handling and footprint, making it particularly well suited to regular dewatering tasks in industry and trades. Here you'll find answers to common questions about using medium-sized gravity filter bags.
