---
title: "Scraper Assembly"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SCRAPER_ASSEMBLY"
  data_integrity_hash: "56a1b90b21be90769326f32781c96a8a"
  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:SCRAPER_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/scraper-assembly.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/scraper-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.0 m/s scraper blade tip speed, 0.1-0.5 MPa hydraulic pressure, 20-80°C operating temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 3.5
    unit: "m"
    consequence: "Excessive centrifugal force at high rotational speeds induces blade deflection beyond elastic limit (Young's modulus 200 GPa for steel blades), hydraulic pressure exceeding seal design limits causes extrusion failure (Seal extrusion gap &lt;0.05 mm), thermal expansion mismatch between metal mounting and polymer blade materials (CTE difference 15×10⁻⁶/°C) causes stress concentration"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Filter cake thickness variation exceeding ±25% from design value of 15 mm"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install thickness monitoring sensors with PID-controlled scraper pressure adjustment system"
  - node_2:
      trigger: "Corrosive filtrate pH &lt;2.0 or &gt;12.0 for extended duration (&gt;100 hours)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Apply duplex stainless steel (UNS S32205) with PREN &gt;35 for critical components"
bom_nodes:
  scraper-blade-knife:
    type: "component"
    urn: "URN:CNFX:ME:SCRAPER_BLADE_KNIFE"
    interface_type: "physical-logic-coupled"
  blade-holder-mounting-bracket:
    type: "component"
    urn: "URN:CNFX:ME:BLADE_HOLDER_MOUNTING_BRACKET"
    interface_type: "physical-logic-coupled"
  adjustment-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:ADJUSTMENT_MECHANISM"
    interface_type: "physical-logic-coupled"
  support-frame:
    type: "component"
    urn: "URN:CNFX:ME:SUPPORT_FRAME"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI B5.50-1985 MACHINE TOOLS - TOOLING AND WORKHOLDING"
    scope: "Verified Engineering Specification"
  - standard: "DIN 8589-1:2003 MANUFACTURING PROCESSES - CHIP REMOVAL - PART 1: GENERAL"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/scraper-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "53be3add869af6e1285720bd49e78ea593da98acee7e0092143518368369c610"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Scraper Assembly

## 1. Technical Definition
A mechanical assembly designed to continuously remove filtered solids from the surface of a rotary drum vacuum filter.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.0 m/s scraper blade tip speed, 0.1-0.5 MPa hydraulic pressure, 20-80°C operating temperature**. Failure boundary: **Scraper blade tip speed exceeding 3.5 m/s causes blade deflection &gt;5 mm, hydraulic pressure &gt;0.6 MPa causes seal failure, temperature &gt;100°C degrades polymer blade materials**, Mechanism: **Excessive centrifugal force at high rotational speeds induces blade deflection beyond elastic limit (Young's modulus 200 GPa for steel blades), hydraulic pressure exceeding seal design limits causes extrusion failure (Seal extrusion gap &lt;0.05 mm), thermal expansion mismatch between metal mounting and polymer blade materials (CTE difference 15×10⁻⁶/°C) causes stress concentration**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Filter cake thickness variation exceeding ±25% from design value of 15 mm | 8 | Scraper blade uneven loading causing torsional stress concentration at mounting bolts | Install thickness monitoring sensors with PID-controlled scraper pressure adjustment system |
| Corrosive filtrate pH &lt;2.0 or &gt;12.0 for extended duration (&gt;100 hours) | 8 | Stress corrosion cracking in 316L stainless steel components at stress levels &gt;150 MPa | Apply duplex stainless steel (UNS S32205) with PREN &gt;35 for critical components |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Adjustment Mechanism](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/adjustment-mechanism.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Rotary Drum Vacuum Filter**, **Slurry Feed Pump**, **Vacuum Pump System**  
**Downstream Applications**: Dehydrated Mineral Concentrates, Processed Chemical Slurries, Filtered Industrial Waste Solids  

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

### Q: What materials are used in your scraper assemblies for maximum durability?
**A**: Our scraper assemblies feature stainless steel (304/316) frames, abrasion-resistant alloy steel components, and polyurethane or rubber blade tips for optimal wear resistance in harsh filtration environments.

### Q: How does the adjustment mechanism improve filter performance?
**A**: The precision adjustment mechanism allows operators to maintain optimal blade-to-drum contact pressure, ensuring consistent solids removal while minimizing wear on both the scraper and filter drum surface.

### Q: Can your scraper assemblies be customized for specific rotary drum filter models?
**A**: Yes, we engineer scraper assemblies with customizable blade dimensions, mounting configurations, and material specifications to match various rotary drum vacuum filter makes and models across the machinery industry.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- ANSI B5.50-1985 MACHINE TOOLS - TOOLING AND WORKHOLDING
- DIN 8589-1:2003 MANUFACTURING PROCESSES - CHIP REMOVAL - PART 1: GENERAL

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Scraper Assembly](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/scraper-assembly)**

### 🌐 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**: SCRAPER_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: a631b952
