---
title: "Screening Media"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SCREENING_MEDIA"
  data_integrity_hash: "3a4faf477fd367060e3079b3a3b75054"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:SCREENING_MEDIA"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/screening-media.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/screening-media"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.0 mm aperture size, 0.1-2.0 m/s material velocity, 15-85° inclination angle"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 350
    unit: "MPa"
    consequence: "Fatigue failure from cyclic loading at stress concentrations near aperture edges, abrasive wear following Archard's wear equation (K=5×10⁻⁵ for steel-on-rock), plastic deformation from impact exceeding yield strength (σ_y=250 MPa for 65Mn steel)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Material hardness mismatch (feed material Mohs hardness &gt; 7 against screen media hardness &lt; 55 HRC)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hardened steel wire with 58-62 HRC surface hardness, polyurethane coating with 90-95 Shore A hardness"
  - node_2:
      trigger: "Resonant vibration at 25-40 Hz matching screen deck natural frequency"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Tensioning system maintaining 200-300 N per wire, damping mounts with loss factor η=0.15"
bom_nodes:
  screen-surface:
    type: "component"
    urn: "URN:CNFX:ME:SCREEN_SURFACE"
    interface_type: "physical-logic-coupled"
  support-frame:
    type: "component"
    urn: "URN:CNFX:ME:SUPPORT_FRAME"
    interface_type: "physical-logic-coupled"
  attachment-system:
    type: "component"
    urn: "URN:CNFX:ME:ATTACHMENT_SYSTEM"
    interface_type: "physical-logic-coupled"
  wear-surface:
    type: "component"
    urn: "URN:CNFX:ME:WEAR_SURFACE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 3310-1:2016 (TEST SIEVES - TECHNICAL REQUIREMENTS AND TESTING)"
    scope: "Verified Engineering Specification"
  - standard: "DIN 4188-1:1985 (TEST SIEVES - WIRE CLOTH, PERFORATED PLATE AND ELECTROFORMED SHEET - NOMINAL SIZES OF OPENINGS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/screening-media.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "1f2db4c64c0379bf736572d5600308bf7cf54d2944ab39468b8115800b1951c7"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Screening Media

## 1. Technical Definition
The active surface component of a screen deck that physically separates materials by size through openings.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.0 mm aperture size, 0.1-2.0 m/s material velocity, 15-85° inclination angle**. Failure boundary: **Tensile stress exceeding 350 MPa for steel wire, aperture deformation exceeding 0.15 mm from nominal, impact energy exceeding 50 J per square centimeter**, Mechanism: **Fatigue failure from cyclic loading at stress concentrations near aperture edges, abrasive wear following Archard's wear equation (K=5×10⁻⁵ for steel-on-rock), plastic deformation from impact exceeding yield strength (σ_y=250 MPa for 65Mn steel)**.

### 2.1 Analytical Physics Model
Governed by the **Harmonic Vibration Force Generation**:

> **Primary Equation**: $F_e = m \cdot r \cdot \omega^2 \sin(\omega t)$  
> **Engineering Impact**: Calculates centrifugal force for vibratory sifters/feeders.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| m | Eccentric Mass | Engineering Constant |
| r | Radius | Engineering Constant |
| \omega | Angular Frequency | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Material hardness mismatch (feed material Mohs hardness &gt; 7 against screen media hardness &lt; 55 HRC) | 8 | Abrasive wear rate exceeding 0.5 mm/hour, aperture enlargement beyond 10% tolerance | Hardened steel wire with 58-62 HRC surface hardness, polyurethane coating with 90-95 Shore A hardness |
| Resonant vibration at 25-40 Hz matching screen deck natural frequency | 8 | Accelerated fatigue cracking at wire junctions, stress concentration factor K_t=3.5 at weave points | Tensioning system maintaining 200-300 N per wire, damping mounts with loss factor η=0.15 |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Vibrating Screen Deck**, **Material Feed Conveyor**, **Screen Tensioning System**  
**Downstream Applications**: Aggregates, Mineral Concentrates, Recycled Materials  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the main advantages of polyurethane screening media over steel?
**A**: Polyurethane screening media offers superior wear resistance, reduced noise levels, and better resistance to abrasion and corrosion compared to traditional steel screens, while maintaining excellent screening efficiency.

### Q: How often should screening media be replaced in industrial equipment?
**A**: Replacement frequency depends on material abrasiveness, operating hours, and media type. Polyurethane typically lasts 3-5x longer than rubber, while steel screens may require more frequent replacement in high-abrasion applications.

### Q: Can screening media be customized for specific machinery applications?
**A**: Yes, screening media can be customized in material composition, opening size, thickness, and attachment systems to match specific machinery requirements, material types, and separation needs in various industries.

## 6. Manufacturing Compliance
- ISO 3310-1:2016 (TEST SIEVES - TECHNICAL REQUIREMENTS AND TESTING)
- DIN 4188-1:1985 (TEST SIEVES - WIRE CLOTH, PERFORATED PLATE AND ELECTROFORMED SHEET - NOMINAL SIZES OF OPENINGS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Screening Media](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/screening-media)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: SCREENING_MEDIA | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 36470351
