Industrial-Grade Spot Welded Filter Screen Packs & Extruder Discs
Our professional Spot Welded Filter Screen Pack collection represents the ultimate mechanical benchmark for high-pressure polymer melt conditioning, plastic recycling purification, and heavy chemical fluid separation. Engineered specifically to meet strict international B2B technical bidding layouts, these multi-layer combined wire mesh discs and custom shapes serve as the critical barrier within manual or fully automated slide-plate screen changers. By grouping multiple mesh counts into a structurally unified, ready-to-drop-in filter unit, we eliminate the operational risks of worker layer-stacking errors, reduce down-time cycles, and guarantee consistent particle retention across every single manufacturing shift.
As a leading global B2B supplier and wire cloth manufacturer, we combine precision digital micro-welding matrices with high-speed mechanical stamping tooling. Our manufacturing facility uses computer-controlled resistance welders that fuse metal wires at the molecular node level without introducing foreign welding materials or causing carbonization burn spots. Whether you are distributing wholesale replacement components for regional blown-film plants, supplying high-viscosity masterbatch compounding rings, or prototyping custom multi-layer circles for specialty chemical recycling valves, our spot-welded screen packs offer exceptional flatness, neat edge lines, and high crush boundaries under intensive process flows.
Core Engineering Strengths of Our Welded Screen Packs
1. Micro-Point Resistance Spot Welding with Zero Delamination
Under high polymer viscous flow drag, loose-layered mesh discs easily bow, slip, and delaminate, allowing severe bypass leaks. Our elements are multi-point spot-welded along calibrated perimeter coordinates. This holds the wire patterns perfectly flush, ensuring total structural alignment and edge consistency through extended production cycles.
2. Progressive Density Multi-Layer Layout Structures
Instead of relying on a single mesh screen that cakes over instantly, our packs utilize a progressive filtration layout. By placing a fine-gauge micron cloth securely between coarse-mesh support and breaker grids, the pack captures large foreign flakes on the outer margins while trapping microscopic fragments inside, doubling the screen service life.
3. Flawless CNC Dimensional Blanking Accuracy (±0.05mm)
Any minor edge deformation can jam an automated continuous screen changer slide plate. We employ high-precision progressive stamping dies that cut perfectly round boundaries or custom geometric tabs down to the exact millimeter, guaranteeing flat, burr-free surfaces that seal tightly inside machine recesses.
4. Premium Metallurgical Integrity and High Burst Boundaries
We weld using purely premium-grade low-carbon SUS304 or SUS316L stainless steel wires. This premium alloy composition prevents thermal brittleness in heat zones up to 450°C and withstands massive pressure differentials (up to 30 MPa) without screen wire tearing or mesh blowout failures.
Technical Specifications & Structural Configurations
We provide full customizable capabilities to support your target bidding frameworks and regional market demands. Review our standardized architectural specifications below:
| Technical Properties | Precision Extruder Disc Packs | Custom / Irregular Welded Shapes |
|---|---|---|
| Alloy Core Matrix | SUS 304, SUS 316, SUS 316L Stainless Steel | SS304/SS316, Plain Carbon Steel, High-Tension Brass |
| Layer Multiplicity | 2 Layers, 3 Layers, 4 Layers, 5 Layers Combined | Multi-stage Complex 7-9 Layer Reinforced Packs |
| Mesh Count Range | 12 Mesh × 60 Mesh × 12 Mesh etc. | Custom Layer Blends (Up to 500 Mesh Micro Cloth) |
| Filtration Micron Span | 20 μm – 300 μm (Precision Resin Clean-off) | 5 μm – 500 μm (High Viscosity Hot-Melt Sizing) |
| Dimensional Limits | Outer Diameter: 15mm – 250mm Discs | Up to 800mm Oval, Kidney, Square Blank Sheets |
| Stamping Tolerances | ±0.05 mm (CNC Progressive Machining) | ±0.10 mm (Heavy Structural Die Blank Cuts) |
| Welding Configuration | 4 to 8 Micro-Spot Perimeter Placements | Continuous Weld Borders / Heavy Inner Node Fusing |
| Max Process Pressure | Up to 25 MPa | Up to 35 MPa (High Burst Resistance Grid Layout) |
Primary Global Extrusion & Machinery Applications
Our custom spot-welded multi-layer mesh packs perform as critical consumable filtration components within continuous high-temperature production lines worldwide:
- Plastics Recycling & Compounding Pelletizers: Placed ahead of the die plate to strip away un-melted polymers, paper stickers, aluminum fragments, and dirt flakes from post-consumer scrap resin melt.
- Blown Film & Co-Extrusion Lines: Positioned inside high-end film extrusion heads to remove gel deposits and tiny charcoal specks, preventing film pinholes and bubble popping failures.
- Synthetic Fiber & Non-Woven Spinning: Fitted beneath polymer distribution blocks to clear micro-precipitates from liquid polyester or nylon melt before it enters fine spinneret plates.
- Rubber Compounding & Extrusion Refining: Assembled within heavy industrial rubber strainers to remove raw un-vulcanized compounds and mineral grit from high-torque tread extruders.
B2B Wholesale Supply Chain & Premium Ocean Freight Packing
We configure our post-production cleaning and export maritime packaging to ensure that lightweight metal packs stay flat, rust-free, and clean through long shipping transits:
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- Industrial Ultrasonic Degreasing: All welded packs undergo automated alkaline ultrasonic washing. This thoroughly removes stamping lubes and metal dust particles, delivering pristine, oil-free filter sheets ready for food-contact packaging sheet processes.
- Moisture-Proof Vacuum Enclosure Bundling: Screen packs are neatly stacked in exact units (e.g., 50 or 100 pcs per pack), wrapped in thick anti-static film, and vacuum-sealed. This insulates the steel from saltwater vapor oxidation during ocean shipping.
- Rigid Honeycomb Case Protection: Pack bundles are housed inside reinforced multi-wall cardboard cartons secured on plywood export pallets. This framework completely prevents mesh edge curling or corner damage from stacking weights.
Frequently Asked Questions (FAQ)
Q1: What are the primary process advantages of spot-welded mesh packs compared to metal-rimmed aluminum bound screen packs?
A1: Spot-welded mesh packs are highly cost-effective and have a slim edge profile, making them ideal for precise clearances inside automatic hydraulic slide-plate screen changers. In contrast, metal-rimmed border packs feature an aluminum or brass binding rim that provides superior sealing around the margins, which is ideal for manual screen change boxes where edge fluid bypass must be avoided.
Q2: How do I select the optimal multi-layer mesh count combination for a newly modified plastic recycling extruder line?
A2: The choice depends on your raw material input qualities and target film or pellet metrics. A classic 3-layer arrangement typically stacks 20 mesh / 80 mesh / 20 mesh, where the 80-mesh fine weave acts as the primary filtration core and the outer 20-mesh grids provide mechanical support against extrusion forces. For heavily contaminated scraps, a 5-layer layout (e.g., 20 / 40 / 120 / 40 / 20) provides progressive trapping to maximize uptime cycles.
Q3: Can your factory reverse-engineer non-standard kidney or oval-shaped welded screen packs based on custom machinery drawings?
A3: Yes, our engineering team regularly supports custom OEM shapes. You can provide your official PDF/CAD engineering blueprints or mail a sample pack directly to our facility. We can reverse-engineer the precise dimensions, layer stacking layout, mesh specifications, and spot-weld locations to match your machine specifications perfectly.
Q4: What is your standard factory MOQ for high-volume B2B contract pricing on spot-welded packs?
A4: For standard metric circular diameters (such as 90mm, 120mm, or 150mm discs) where our blanking toolsets are ready, our baseline minimum order quantity is 1,000 pieces per lot size. For custom kidney shapes or specialized Dutch-weave multi-layer wire combinations, the minimum start sequence begins at 500 units to offset automated welder tool adjustments and press setups.
Get Factory-Direct Wholesale Price & Free Samples
Are you searching for a stable, high-capacity Chinese manufacturer to optimize your procurement costs? Partner with us for premium Spot Welded Filter Screen Packs featuring heavy-duty, clean-rimmed, and high-pressure resistant quality. We ensure full compliance with international plastic extrusion, polymer processing, rubber recycling, and blown film filtration standards, backed by seamless global supply chain service.
- Flexible Tiered Pricing: Enjoy massive discounts and competitive FOB/CIF/CFR quotes for full container loads or high-volume continuous supply batches to maximize your inventory budget.
- 100% Free Samples: Test our quality firsthand. We offer premium Spot Welded Filter Screen Pack samples (available in multi-layer wire mesh combinations of SS304, SS316, or plain steel) featuring precise micron sequences, precise spots welding integrity, uniform wire mesh weave, and zero loose edges. Perfect for plastics compounding extruders, blown film factories, or industrial filtration wholesale verification.
- Guaranteed Fast Lead Time: Our advanced automated multi-point spot welding machinery, high-speed progressive punching presses, automatic circle cutting systems, and strict dimensional tolerance inspection equipment ensure prompt manufacturing and on-time shipment.
- Customized Packaging: Prevent custom screen packs from nesting, edge warping, or rusting during long-distance ocean transit. We use layered protective trays, vacuum-sealed moisture-proof packaging with silica gel desiccants, and heavy-duty corrugated cartons inside sturdy wooden crates on pallets.
