Rimmed woven screen packs for melt filtration. Compare 20/40/20 and 40/80/200/80/40 stacks, rim geometry, breaker-plate support and inspection.
Metal wire meshShare a drawing, reference sample or application requirements to discuss the configuration.
Round cut and rimmed woven filter discs showing separate disc and captured-edge constructions
A rimmed extruder pack captures a defined sequence of woven screens inside one metal edge. The finer layer performs melt filtration and the coarser layers support and protect it. The layer list runs from inlet to outlet and identifies weave, mesh count and wire diameter for every layer. A crimped rim mechanically encloses the edges; a welded rim uses defined joint locations outside the active opening.
The pack seats in the breaker-plate pocket. Outside diameter, compressed stack thickness, rim width and seating depth define the fit; the downstream breaker plate carries the load transmitted through the stack. The operating schedule records polymer, melt temperature, throughput and screen-change differential pressure. Inspection checks layer identity and order, perimeter retention, thickness, flatness and the absence of loose wire ends.
The rim turns the selected layers into one handled insert. Its outside edge fits the changer recess, while its section occupies part of the available closure height. Specify the compressed layer stack and rim profile together so the assembly seats on the intended land without loading the active cloth at the edge.
Mark inlet and outlet faces, then list every filtering and backing layer in that order. Position the support against the breaker plate and define the exposed opening. Keep that layer schedule with each batch label; after removal, inspect the rim closure and the loading pattern before specifying the next pack.
| Feature | Technical definition |
|---|---|
| Three-layer stack | 20 /40 /20 mesh; each layer has its own wire diameter |
| Five-layer stack | 40 /80 /200 /80 /40 mesh; separate construction |
| Illustrated pack diameter | Illustrated geometry: 3.661 in for the 20 /40 /20 pack construction |
| Rim and fit | Rim material, width, thickness, pocket diameter and seating depth |
| Flow and support | Inlet-to-outlet sequence and downstream breaker-plate support |
| Process inputs | Polymer, melt temperature, throughput and change-out differential pressure |
| Controlled feature | Installation task | Check on the finished part |
|---|---|---|
| Rim outside contour | Fits the changer pocket | Diameter or outline and seating clearance |
| Finished stack height | Fits the closure space | Rim section and compressed layers |
| Inlet-to-outlet order | Places filtering and backing layers | Layer identity and support-side orientation |
| Active window | Exposes the required screen area | Rim coverage and breaker-plate support |
| Inlet-to-outlet mesh sequence | Controlling mesh / inch | Wire diameter (mm) | Clear aperture (mm) |
|---|---|---|---|
| 20 / 40 / 20 | 40 | 0.254 | 0.38 |
| 40 / 80 / 200 / 80 / 40 | 200 | 0.0533 | 0.0737 |
Mesh sequences run from inlet to outlet. The table specifies the controlling square-weave layer; every protective and backing layer retains its own wire diameter. The rim and changer pocket determine finished pack 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. |
| Parameter | Specification | Notes |
|---|---|---|
| Three-layer stack | 20 /40 /20 mesh; each layer has its own wire diameter | — |
| Five-layer stack | 40 /80 /200 /80 /40 mesh; separate construction | — |
| Illustrated pack diameter | 3.661 in | Geometry of the illustrated construction; finished dimensions follow the equipment interface drawing. |
| Rim and fit | Rim material, width, thickness, pocket diameter and seating depth | — |
| Flow and support | Inlet-to-outlet sequence and downstream breaker-plate support | — |
| Process inputs | Polymer, melt temperature, throughput and change-out differential pressure | — |
| Material | 304 / 316L stainless steel | — |
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Coarse support and fine control layers are cut to the cavity profile, then captured by a metal perimeter. A 20/40/20 mesh stack is one documented example, not a universal retention rating.
The pack retains solid contamination in the melt before flow reaches downstream tooling.
A defined mesh sequence and screen-change differential pressure organize the filtration cycle.
The pack seats in the breaker-plate pocket. Outside diameter, compressed stack thickness, rim width and seating depth define the fit; the downstream breaker plate carries the load transmitted through the stack. The operating schedule records polymer, melt temperature, throughput and screen-change differential pressure. Inspection checks layer identity and order, perimeter retention, thickness, flatness and the absence of loose wire ends.
A rimmed extruder pack captures a defined sequence of woven screens inside one metal edge. The finer layer performs melt filtration and the coarser layers support and protect it. The layer list runs from inlet to outlet and identifies weave, mesh count and wire diameter for every layer. A crimped rim mechanically encloses the edges; a welded rim uses defined joint locations outside the active opening.
Complete the component fields and return the sheet with the assembly drawing and order reference.
Editable CSV with component dimensions, construction and inspection fields.
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Define the dimensions, media, joints and inspection records before confirming the order.
