Custom Sintered Wire Mesh Filter Plates for ANF/ANFD and Fluid Beds

Sintered wire mesh filter plates are made from multiple layers of metal wire mesh bonded by sintering and fabricated into filter assemblies with flanges, support structures or segmented connections. Filtalloy supplies custom plates for agitated Nutsche filters and filter dryers (ANF/ANFD), together with conical sintered mesh components for fluidized beds. Nominal filtration ratings range from 1–300 μm.

Plate size, material, rating, flange diameter and thickness, mounting holes and one-piece, welded or segmented construction are specified by the customer. We work from drawings, existing samples or new-project operating requirements to confirm manufacturing, installation and inspection details for the finished component.

Small sintered mesh filter discs and small conical filters are also supplied to customer drawings. Discs can include an outer ring or support structure; the plate, disc and cone options below help you identify the drawing details to provide.

On this page: Small filter discs · Plate dimensions · Conical filters · Manufacturing and inspection

Nominal filtration rating: 1–300 μm; the required grade is specified for each project.

Filter media: Multi-layer sintered metal wire mesh.

Custom dimensions: Plate diameter, thickness, flange, mounting holes and sealing surfaces to your requirements.

Assembly options: One-piece, welded or segmented designs specified by the customer.

Operating conditions: Material, temperature, forward and reverse differential pressure, flow and support structure are reviewed together.

Custom sintered mesh plates provide the filter medium in agitated Nutsche filters and filter dryers. The plate works with the equipment’s support, sealing and drainage structures. Material properties, nominal filtration rating, operating differential pressure, cleaning method and installation details are reviewed for each project.

Round, annular, one-piece, welded and segmented assemblies can be fabricated with flanges, central openings and mounting holes. Filtering, washing and drying are performed by the equipment system; the plate structure and rating must match the process.

One-piece plates: Manufactured to the required dimensions, with an outer frame, flange or central mounting structure where specified.

Welded plates: Multiple sintered mesh sections are welded into a complete assembly. Weld locations, flatness and installation dimensions are checked against the drawing.

Segmented plates: Individual sections are fitted using the customer-specified connections and fixing arrangement. Segment dimensions, joint areas and sealing requirements are reviewed.

The customer specifies the dimensions and assembly format. Before production, we review material, fabrication, welding, fit and inspection requirements and discuss any manufacturing details that need adjustment.

Segment joints, supports and drainage interfaces

For a segmented or welded ANF/ANFD plate, the equipment assembly drawing should identify which surfaces carry the load and which interfaces prevent unfiltered liquid from entering the filtrate side. A welded panel joint and a removable joint sealed by a separate gasket need different details; the segment outline alone does not define either boundary.

• Connections and seals: define the joint form, fixing arrangement, seal location and mating geometry; identify seals or hardware supplied separately.
• Support and clearance: show support contact areas and spans, locating points and any required clearance to moving equipment parts. A support change can alter the load on the filter medium.
• Drainage: show the intended filtrate passages and outlets so joints, support members and sealing regions do not close the required paths.

Our component drawing covers the plate or segments and the agreed manufacturing checks. Equipment-side supports, seals and drainage need to match the assembly drawing; any assembled sealing or flow verification has its own agreed scope. Existing drawings can establish these details without a new full process questionnaire.

Large conical equipment components: sintered mesh cones can be supplied with perforated support layers and customer-specified connection structures. Their role as gas distributors, particle-retention components or other parts of a fluidized-bed system is defined by the equipment drawing. We supply the component rather than the complete fluidized-bed system.

Small sintered mesh cone filters: also available to drawing. Specify the conical profile, open or closed tip, end dimensions, support and mounting or connection details. These small filters are a separate supply option from the large fluidized-bed assemblies shown in the existing photographs below.

For either type, provide the process medium, flow, allowable pressure drop, particle characteristics, temperature and normal flow direction. Any reverse-flow or cleaning duty must be specified separately.

We select the sintered mesh material, assembly structure and fabrication dimensions from the drawing, then carry out cutting, forming, fit-up or welding. Assembly dimensions, flatness and filter-medium integrity are checked. Inspection and reporting requirements are defined in the order.

Material documentation, a certificate of conformity and bubble-point reports can be supplied as agreed. Individual reports are available for specified critical orders. EN 10204 3.1 documentation is arranged according to the order and the available material documents.

Bubble-point pore size, nominal filtration rating and particle-retention efficiency are reported separately. Quantitative efficiency, burst pressure or forward and reverse differential-pressure data at a specified temperature require a defined assembly and test basis. Proof-pressure holding is not a burst-pressure result.

Solvent cleaning and ultrasonic cleaning are recommended. The contamination, filter material, welded structure and seals determine the cleaning agent, temperature and operating conditions. Inspect the plate after cleaning and, where needed, recheck flow and integrity.

Customer email feedback has reported service exceeding 20,000 hours in a specific application. Service life varies with the process fluid, temperature, differential pressure, cleaning and maintenance conditions.

For layer edges and joints, see sintered mesh checks after cleaning. Pharmaceutical CIP/SIP and documentation requirements are addressed on our pharmaceutical filtration page; the appropriate test object and method are described in the test methods and their scope. These requirements are agreed for the supplied component and do not establish an unlimited cleaning-cycle life.

Yes. We manufacture to your drawings or technical requirements. Dimensions, tolerances, material, mounting holes and sealing details are reviewed before production.

Yes. The customer specifies the assembly format. We review section dimensions, weld locations, connections, fit and inspection requirements.

No. It is a nominal filtration rating range. The grade and verification requirements are agreed for each project; it is not an absolute retention guarantee for every particle.

We can assess a replacement from drawings or an old sample. Installation dimensions, sealing, material, nominal rating and the original flow and pressure-drop requirements must be matched.

We recommend solvent cleaning and ultrasonic cleaning. The cleaning agent and operating conditions depend on the contamination, material, welds and seals. Flow and integrity can be checked after cleaning.