Metal leaf discs combine two filtering faces, an internal drainage support and a central collection hub. Annular sintered-mesh elements stack around a central outlet for polymer melt filtration.
Sintered metal filters and mediaShare a drawing, reference sample or application requirements to discuss the configuration.
The metal filtering faces surround a central opening; radial divisions and the outer rim belong to the supported element geometry.
| Parameter | Specification | Notes |
|---|---|---|
| Element construction | Two metal filtering faces with internal drainage | Supported leaf-disc assembly |
| Outside diameter | 111–381 mm | Annular series; paired to the installation drawing |
| Central opening | 38–115 mm | Paired hub and central-shaft geometry |
| Mounting | Central hub and stacked outlet | Hub contacts and axial closure defined together |
| Filter-face medium | Five-layer sintered mesh; 1.7 mm laminate | These options specify the five-layer filter-face laminate. The leaf disc has two filtering faces, an internal drainage support and a hub; their assembled axial height and installed stack pitch are defined separately. Select the nominal media grade with its filtration test basis and the face alloy; the complete disc retains its paired outside-diameter and hub dimensions. |
| Principal mesh alloy | 316L stainless steel | Hub and support materials identified separately |
| Disc height | Overall thickness and hub thickness | Measured from defined axial datums |
| Stack geometry | Disc count, pitch and total height | Clamped state and end closure shown |
| Drainage structure | Internal support and central collection path | Flow passage retained through the assembly |
| Edge construction | Closed perimeter and specified joints | Inspect continuous joining zones |
| Acceptance | Flatness, hub alignment, seal fit and media check | Conditions stated on the inspection plan |
Materials: 316L stainless steel sintered wire-mesh laminate; separately specified hub and support alloy
A metal leaf disc is a filtering assembly with an upper and lower metal face. Melt crosses the faces into the supported internal drainage space, then travels towards the central hub and outlet. The flow path, support and hub distinguish a leaf disc from a flat cut mesh disc or a screen pack clamped on a breaker plate.
The sintered wire-mesh laminate forms the filtering faces. Internal support holds the faces apart and provides a drainage route; the central hub locates and seals the element on the outlet assembly. The outer edge closes the perimeter. The drawing identifies each contact, support and joining zone, with the filter medium and metal support specified separately.
The annular series covers outside diameters of 111–381 mm and central openings of 38–115 mm. Select paired dimensions from the housing and central shaft drawing. Disc overall thickness, hub thickness and installed stack pitch are distinct dimensions. The exposed annulus excludes the hub, sealed rim and support footprints.
A stack combines discs with the specified spacing, hub contacts and end closure. The central assembly collects the filtrate while the spaces between adjacent discs feed the filtering faces. Record the disc count, stack height, axial clamping arrangement and seal contacts together. The hub drawing and assembly tolerances govern replacement interchangeability.
Specify polymer type, melt temperature, viscosity basis, throughput and contamination. The sintered-mesh grade is identified with its media specification and retention test. 316L is the principal mesh material; hub, support and joined parts have their own alloy entries. Film, sheet and pellet processes are matched to the finished stack geometry and the required product quality.
Disassemble and clean using the defined process for the polymer, alloy and joined assembly. Keep central passages and drainage routes open. Inspect the faces, perimeter joints, hub sealing surfaces and distortion before reassembly. The acceptance record includes dimensions, flatness, hub alignment and the specified flow or integrity check at its stated conditions.
| Part or dimension | Function | Drawing definition | Inspection point |
|---|---|---|---|
| Upper and lower faces | Pass polymer melt through the metal medium | Laminate grade and exposed annulus | Face condition and media test |
| Internal support | Carry faces and drain filtrate | Support layout and drainage opening | Support contact and open passages |
| Central hub | Locate, seal and collect | Bore, contact faces and outlet | Alignment, fit and sealing surface |
| Outer perimeter | Close the filtering envelope | Joint and rim dimensions | Closure and distortion |
| Complete stack | Combine feeding gaps and collection path | Count, pitch, end closure and clamp | Assembled height and correct seating |
| Nominal filtration grade (µm) | Sintered mesh layers | Laminate thickness (mm) |
|---|---|---|
| 1 | 5 | 1.7 |
| 2 | 5 | 1.7 |
| 5 | 5 | 1.7 |
| 10 | 5 | 1.7 |
| 20 | 5 | 1.7 |
| 30 | 5 | 1.7 |
| 50 | 5 | 1.7 |
| 80 | 5 | 1.7 |
| 100 | 5 | 1.7 |
| 150 | 5 | 1.7 |
| 200 | 5 | 1.7 |
These options specify the five-layer filter-face laminate. The leaf disc has two filtering faces, an internal drainage support and a hub; their assembled axial height and installed stack pitch are defined separately. Select the nominal media grade with its filtration test basis and the face alloy; the complete disc retains its paired outside-diameter and hub dimensions.
| Supply item | Order basis |
|---|---|
| Production lead time | 2–3 weeks after order and drawing confirmation. |
| Trial orders | Small trial quantities for fit and process evaluation. |
| Regular production orders | 50 pieces or US$3,000 per order. |
| Quotation basis | Material, finished dimensions, filter construction, connections and quantity. |
Stacked metal faces provide filtering area around a central outlet in film-processing assemblies.
Leaf-disc dimensions and stack interfaces fit the specified melt-filter housing.
The metal assembly provides removable filtering faces, supports and a central collection connection for the defined process.
Include these details when discussing your requirements.
A leaf disc has two filtering faces, internal drainage and a central collection hub. A flat filter disc is a medium fitted to a separate holder or support.
Overall thickness describes one element. Stack pitch describes the installed spacing between adjacent elements and includes the defined hub or spacer contacts.
Use the housing and central-shaft drawing to select a matching annular pair, then define hub contact and radial clearances.
It shows annular metal faces, the centre opening and radial supporting divisions. The internal drainage construction is defined on the assembly drawing.
Hub geometry, sealing contacts, disc count, pitch, clamped height, media grade and flow path must all match the receiving assembly.
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