---
title: "Scroll conveyor"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SCROLL_CONVEYOR"
  data_integrity_hash: "ae52805b4235da88448560836bf9a22e"
  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:SCROLL_CONVEYOR"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/scroll-conveyor.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/scroll-conveyor"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.0 m/s axial velocity, 1500-3000 RPM bowl rotation"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.5
    unit: "mm"
    consequence: "Centrifugal bending stress exceeding yield strength of 316L stainless steel (205 MPa) at critical radius"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Abrasive solids concentration exceeding 40% by volume"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hard-facing with tungsten carbide overlay (HV 1200) on leading edges"
  - node_2:
      trigger: "Bowl imbalance exceeding ISO 1940 G2.5 balance grade"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Dynamic balancing with correction masses at 30° intervals on scroll hub"
bom_nodes:
  conveyor-hub:
    type: "component"
    urn: "URN:CNFX:ME:CONVEYOR_HUB"
    interface_type: "physical-logic-coupled"
  helical-flight:
    type: "component"
    urn: "URN:CNFX:ME:HELICAL_FLIGHT"
    interface_type: "physical-logic-coupled"
  feed-zone-section:
    type: "component"
    urn: "URN:CNFX:ME:FEED_ZONE_SECTION"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 5049-1:1994 - CONTINUOUS MECHANICAL HANDLING EQUIPMENT - SAFETY REQUIREMENTS FOR BELT CONVEYORS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/CEMA 402-2003 - BELT CONVEYORS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 15207-1:2010 - CONTINUOUS CONVEYORS - BELT CONVEYORS FOR LOOSE BULK MATERIALS - BASICS FOR CALCULATION AND DIMENSIONING"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/scroll-conveyor.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "748ee345c34a351f27d1f7dd31429fce511556441bcd326c6361c51c71367c3e"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Scroll conveyor

## 1. Technical Definition
A helical component within a centrifuge that moves separated solids along the bowl wall for discharge.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.0 m/s axial velocity, 1500-3000 RPM bowl rotation**. Failure boundary: **Helix pitch deformation exceeding 0.5 mm deviation from nominal geometry at 3500 RPM**, Mechanism: **Centrifugal bending stress exceeding yield strength of 316L stainless steel (205 MPa) at critical radius**.

### 2.1 Analytical Physics Model
Governed by the **Tractive Power & Resistance Model**:

> **Primary Equation**: $P = \frac{F \cdot v}{\eta}$  
> **Engineering Impact**: Ensures motor torque capacity exceeds operational inertia.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| F | Total Tractive Resistance | Engineering Constant |
| v | Belt Speed | Engineering Constant |
| \eta | Efficiency | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Abrasive solids concentration exceeding 40% by volume | 8 | Helical flight wear rate exceeding 0.1 mm/hour | Hard-facing with tungsten carbide overlay (HV 1200) on leading edges |
| Bowl imbalance exceeding ISO 1940 G2.5 balance grade | 8 | Resonant vibration at 75-85 Hz causing scroll-conveyor structural fatigue | Dynamic balancing with correction masses at 30° intervals on scroll hub |

## 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**: **Centrifuge Bowl**, **Feed Pump System**, **Solids Discharge Chute**  
**Downstream Applications**: Dehydrated Sludge Cake, Clarified Liquid Effluent, Concentrated Mineral Slurry  

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

### Q: What materials are best for scroll conveyors in corrosive environments?
**A**: For corrosive environments, 316L stainless steel offers excellent corrosion resistance, while tungsten carbide coated alloy steel provides superior wear resistance for abrasive applications.

### Q: How does the helical flight design affect solids discharge efficiency?
**A**: The helical flight's pitch and geometry are optimized to move separated solids along the centrifuge bowl wall with minimal energy consumption while preventing clogging and ensuring consistent discharge rates.

### Q: What maintenance is required for scroll conveyor components?
**A**: Regular inspection of the helical flight for wear, checking the conveyor hub alignment, and monitoring the feed zone section for buildup are essential. Hard-surfaced alloys typically require less frequent replacement than standard steels.

## 6. Manufacturing Compliance
- ISO 5049-1:1994 - CONTINUOUS MECHANICAL HANDLING EQUIPMENT - SAFETY REQUIREMENTS FOR BELT CONVEYORS
- ANSI/CEMA 402-2003 - BELT CONVEYORS
- DIN 15207-1:2010 - CONTINUOUS CONVEYORS - BELT CONVEYORS FOR LOOSE BULK MATERIALS - BASICS FOR CALCULATION AND DIMENSIONING

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Scroll conveyor](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/scroll-conveyor)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: SCROLL_CONVEYOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: a6dd13c1
