In high-precision filtration systems, hydraulic machinery, and polymer processing, standard wire mesh rolls cannot be used directly. Instead, industries require precision-cut, custom-sized circular wire mesh discs, commonly known as SS Circle Filters or Welded Mesh Packs.
These circular filters are designed to fit perfectly into pipelines, valves, cylinders, and screen changers, providing a leak-proof seal and highly efficient filtration. In this comprehensive product guide, we explore how circle filters are manufactured, their key applications, and how to specify the correct dimensions for your machinery.
What are SS Circle Filters and Welded Packs?
SS Circle Filters are circular discs cut from woven stainless steel wire cloth. Depending on the operating pressure and filtration precision required, they are supplied in two main forms:
- Single Layer Circle Filters: Simple, single-sheet wire mesh discs cut to precise diameters. Ideal for low-pressure systems or as pre-filters.
- Welded Multilayer Packs: Multiple circular discs of different mesh sizes stacked together and spot-welded at the edges. This creates a rigid, highly durable filter pack that can withstand extreme melt pressures without shifting or collapsing.
Key Manufacturing Techniques
Manufacturing high-quality circle filters requires advanced machinery to ensure dimensional accuracy and clean, burr-free edges:
- Precision Punching: High-speed mechanical presses equipped with custom dies are used to punch out circle filters. This ensures perfect roundness and zero deviation in diameter.
- Spot Welding: For multilayer packs, advanced resistance spot-welding machines fuse the edges of the mesh layers together. This prevents individual layers from separating under pressure.
- Aluminum/Copper Rimmed Edges: For critical high-pressure applications, the welded packs are bound with a soft metal rim (aluminum or copper). The rim acts as a gasket, preventing polymer or fluid bypass around the filter edges.
Primary Industrial Applications
SS circle filters are used across a wide range of demanding industries:
- Hydraulic Systems: Filtering hydraulic oil to protect high-precision valves, pumps, and actuators from microscopic metal particles.
- Chemical & Petrochemical: Separating catalysts, filtering corrosive liquids, and purifying gases in chemical reactors.
- Water Treatment: Fine filtration in water purification systems, desalination plants, and industrial wastewater treatment.
- Food & Beverage: Filtering cooking oils, syrups, juices, and dairy products where strict hygiene and rust-resistance are mandatory.
How to Measure and Specify Circle Filters
When ordering custom circle filters from Maruti Net Industries, please provide the following technical specifications:
- Diameter (mm): The exact outer diameter of the disc (ranging from 10mm to 1000mm).
- Mesh Combination (for packs): Specify the mesh count for each layer (e.g., 20 mesh / 80 mesh / 20 mesh).
- Material Grade: SS 304, SS 316, or SS 316L.
- Type: Single-layer, spot-welded, or metal-rimmed.
Conclusion
SS circle filters and welded packs are critical components that keep industrial systems running smoothly. Choosing precision-cut, high-quality circular filters prevents fluid bypass, protects machinery, and ensures maximum filtration efficiency.
At Maruti Net Industries, our manufacturing facility in Shapar, Rajkot is equipped with advanced punching and welding machinery to supply zero-defect circle filters tailored to your exact industrial requirements. Contact us today for a custom quote.
