Custom wire mesh filter screens for plastic extrusion, recycling, pelletizing and polymer processing.
Custom wire mesh screens and screen packs for plastic extrusion, recycling, pelletizing and polymer compounding.
Choose the screen profile, mesh layers, material and edge construction around your screen changer and filtration requirements. Send Maidong your drawing, current screen specification or sample details for a quotation.
Single & multi-layer constructions
Round, oval & drawing-based profiles
Mesh, weld and rim options
An extruder screen retains suitable solid contamination as molten polymer passes through the mesh. An extruder screen pack brings multiple mesh layers together in a defined sequence, combining filtration and support functions.
The construction is specified as a complete component: mesh count, wire diameter, weave, layer order and equipment fit all matter. The options below are custom enquiry references; final manufacturing details are confirmed in the quotation.
Individual mesh screens cut to a specified profile, for single-screen installations or an approved customer-assembled stack.
Separate screens supplied to a defined layer schedule. Identify every layer and its installation order.
Layers joined at specified points for handling and installation. Define weld positions and keep-clear areas; spot welding is not full-surface sintering.
Layers retained within a formed rim. Specify rim material, outside size, effective opening and total thickness. Stainless steel or aluminum rims are subject to review.
Visible edge weld points on an oval mesh screen. Layer count and mesh grade are specified separately.
Round screens with formed rims. The photograph does not establish the rim alloy or exact mesh specification.
Multiple wire mesh layers combined in a specified filtration sequence for extrusion, recycling and pelletizing applications.
Round / Disc · Oval · Kidney · Rectangle · Annular · Custom Shape
Round and disc describe the same circular profile. Shape options are made to drawing, subject to dimensional and manufacturing review.
Custom outlines and circular mesh components from the supplied product photo library.
These combinations are reference examples, not universal standards or fixed stock specifications. Final construction is customized to your extrusion process, material and filtration requirement.
5 layers — reference
A symmetrical sequence with an 80-mesh center and coarser surrounding layers.
3 layers — reference
An asymmetrical sequence. Confirm the flow direction and downstream support arrangement.
5 layers — reference
A 200-mesh center with surrounding layers. Confirm wire size, opening and support.
Each number identifies one layer. Sequences are shown for identification, not as installation directions. State whether your schedule runs from melt inlet to outlet or from the breaker plate toward the extruder. Mesh count alone does not establish a verified micron rating.
SS304: a reference option for compatible general extrusion conditions.
SS316: review where process chemistry or corrosion exposure calls for this grade.
SS316L: specify when the lower-carbon grade is required by the component or process specification.
Confirm the mesh material and frame material separately. Other materials are subject to supply and process review.
Reference mesh counts: 20, 40, 60, 80, 100, 120, 150 and 200 mesh.
Plain or twill square weave: specify mesh count and wire diameter.
Dutch / twilled Dutch / reverse Dutch: provide warp and weft counts, wire diameters and construction-specific filtration data.
Other counts and weaves can be reviewed. Grade alone does not define filtration accuracy, allowable pressure or temperature.
For material selection, see our 304 vs 316 stainless steel wire mesh guide.
Supplier literature includes diameter examples of 60, 65, 90, 230, 255 and 300 mm, and 2.5 in (63.5 mm), 3 in (76.2 mm), 4.46 in (approximately 113.28 mm). These are references only, not a universal size standard or Maidong stock list. Quote the actual equipment dimensions and original units.
| Parameter | Reference / custom enquiry options | Confirm for quotation |
|---|---|---|
| Construction | Single screen, loose set, spot-welded or rim-bound pack | Assembly and layer schedule |
| Material | SS304 / SS316 / SS316L; others for review | Grade for each layer and rim |
| Shape | Round/disc, oval, kidney, rectangle, annular, custom | Dimensioned profile and tolerances |
| Dimensions | Drawing-based; reference examples above | OD, ID if applicable, recess fit |
| Layers | Single layer; 3- and 5-layer reference combinations | Every layer and sequence; other counts by drawing |
| Mesh | 20–200 reference selections; 250/325 and others for review | Mesh, wire diameter and weave per layer |
| Filtration opening | Defined by mesh construction | Opening/rating and definition or test basis |
| Edge / thickness | Plain cut, spot-welded, framed; thickness by drawing | Rim width, maximum thickness, weld positions |
| Equipment | Screen changer / breaker plate arrangement | Flow direction, cavity, support, backflushing |
| Supply | Quoted to specification | Quantity, packing, destination and documentation |
Reference / custom available: manufacturing feasibility, final dimensions, tolerances and supply details are confirmed in the quotation. No universal pressure, temperature or service-life rating is stated.
The screen sits in the polymer melt path as defined by the machine design.
Retention depends on the mesh and contamination. Deformable gels can behave differently from solid particles.
Support layers and the breaker plate support the fine mesh according to the approved arrangement.
Loading raises flow resistance. Follow equipment limits, pressure trends and product requirements.
Conceptual arrangement: Melt inlet → Screen pack → Breaker plate → Melt outlet
A common arrangement places the pack upstream of a perforated breaker plate. Follow the equipment drawing for the actual location and assembly. Confirm cavity shape, recess depth, active opening, flow direction and downstream support.
A disc pack is not interchangeable with a continuous belt simply because the mesh count matches. Tell us if backflushing is used; suitability requires a construction review.
Define recycled feed, contamination, throughput and pellet requirements.
Include additives and fillers. Define unwanted agglomerates without removing intended ingredients.
Specify contamination limits, film requirements and acceptable pressure variation.
Provide resin, product requirements, current filtration specification and changer dimensions.
Application suitability depends on the actual process; these categories are not claims of completed customer projects.
Build your custom extruder screen enquiry around profile, mesh construction, layer assembly and equipment fit. To compare a screen pack manufacturer for repeat purchasing, keep the full approved specification consistent across quotations.
If details are unknown, send measured photographs and identify the missing information. A photo can show shape and construction but cannot establish the exact alloy or mesh grade.
An extruder screen is an individual mesh element. A screen pack combines multiple layers in a specified order. Layers may be supplied separately, spot welded or retained by a rim.
Start with the current working specification or process filtration requirement. Mesh count, wire diameter, weave, active screen area, polymer and contamination must be considered together. There is no universal mesh count for all extrusion lines.
No. They are reference combinations for custom enquiries. Final material, mesh construction, layer order, dimensions and assembly are confirmed for your extrusion process and equipment.
No. Different wire diameters produce different openings at the same mesh count. Dutch weave and complete screen packs need construction-specific filtration information. State the required opening or rating and its definition.
Yes, these profiles can be submitted for custom review. Include critical dimensions and tolerances. Annular screens require inside and outside diameters; kidney and other non-circular profiles need a dimensioned outline.
Choose around equipment fit, handling and the approved layer assembly. Spot welds secure layers at defined locations; a rim retains the edges. Neither method alone establishes a pressure rating or guarantees sealing.
Fit must be checked against the cavity, recess depth and support drawing. Include flow direction and rim requirements. A machine model is useful but should be supported by dimensions or a current screen specification.
Follow the equipment limits and monitor pressure difference, output and product condition. The interval depends on polymer, contamination, screen area and operating conditions. No universal replacement interval is specified.
Do not assume a used pack remains suitable after cleaning. Mesh distortion, damaged welds and retained residue can affect performance. Reuse or backflushing requires an approved construction and inspection procedure.
Send dimensions or a drawing, material, mesh and wire details, layer order, edge construction and quantity. Add polymer and operating information when you need a new configuration reviewed.
Send your drawing, current screen specification or sample photographs to Maidong Metal Wire Mesh Products Co., Ltd. Include quantity and delivery destination so we can review the construction and prepare a quotation.
Shape & size · Mesh & layers · Material · Quantity
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🌐 Website: www.mdwiremesh.com
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