筛网目数—孔径对照表
| 筛网目数（mesh/inch） | 筛网孔径（μm） | 筛网目数（mesh/inch） | 筛网孔径（μm） |
| 30 | 600 | 460 | 30 |
| 35 | 500 | 540 | 26 |
| 40 | 425 | 650 | 21 |
| 45 | 355 | 800 | 19 |
| 50 | 300 | 900 | 15 |
| 60 | 250 | 1100 | 13 |
| 70 | 212 | 1300 | 11 |
| 80 | 180 | 1600 | 10 |
| 100 | 150 | 1800 | 8 |
| 120 | 125 | 2000 | 6.5 |
| 140 | 106 | 2500 | 5.5 |
| 150 | 100 | 3000 | 5.0 |
| 170 | 90 | 3500 | 4.5 |
| 200 | 75 | 4000 | 3.4 |
| 230 | 63 | 5000 | 2.7 |
| 270 | 53 | 6000 | 2.5 |
| 325 | 45 | 7000 | 1.25 |
| 400 | 38 |
Melt Filter & Spin Pack Sealing Gaskets / Washers
Product Overview
Our aluminum and copper sealing gaskets / washers are precision-engineered components designed for melt filtration systems and spin pack assemblies in chemical fiber spinning processes. These metal sealing elements provide reliable, high-temperature sealing between flanged connections, ensuring leak-free operation under extreme polymer melt conditions.
Available in both gasket (flat sealing ring) and washer (through-hole ring) configurations, our products meet standard international dimensions or can be manufactured to custom specifications.
Material Specifications
| Material | Properties | Typical Applications |
|---|---|---|
| Aluminum Gasket / Washer | Lightweight, corrosion-resistant, excellent deformability for effective sealing under compression | Melt filter housings, spin pack seals, low to medium pressure applications |
| Copper Gasket / Washer | High thermal conductivity, superior creep resistance, excellent high-temperature performance | High-temperature melt pipes, spinneret seals, high-pressure flange connections |
Product Applications
🔸 For Melt Filters
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Sealing of melt filter housings and candle filter assemblies
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Flange connection seals between melt pipes and metering pumps
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High-temperature polymer melt containment
🔸 For Spin Pack Assemblies
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Sealing between spinnerets, filter sieves, and distribution plates
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Sealing of spin pack bodies to prevent polymer melt leakage
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Critical components in POY, FDY, BCF, Staple Fiber, and Non-woven spinning lines for PET, Nylon, and PP materials
Key Features
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✅ High-temperature resistance – Withstands extreme temperatures of polymer melt processing
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✅ Excellent sealing performance – Cold-flowable metal properties ensure tight seals under compression
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✅ Corrosion and wear resistance – Suitable for aggressive chemical environments
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✅ Precision manufacturing – Produced to tight tolerances for reliable, repeatable sealing
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✅ Customizable – Available in various sizes, thicknesses, and shapes to meet specific equipment requirements
Technical Specifications
| Parameter | Details |
|---|---|
| Materials | Aluminum (Al), Copper (Cu) |
| Surface Treatment | Aluminum: Anodized dyeing treatment; Copper: Nickel-plated (optional) |
| Shapes Available | Round, rectangular, semicircular, waist-shaped, hollow, custom special shapes |
| Size Range | 8mm to 340mm diameter (custom sizes available) |
| Standards | Manufactured to international dimensions or custom drawings |
Why Choose Our Gaskets / Washers?
Our aluminum and copper sealing components are trusted by chemical fiber manufacturers worldwide for their consistent quality, long service life, and superior sealing reliability. With decades of experience in precision machining of spinning components, we ensure each gasket and washer meets the demanding requirements of continuous, high-temperature polymer processing operations.
For detailed quotations or custom design inquiries, please contact our sales team with your specific dimensions and material requirements.
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