---
title: "Moving Die Half (Ejector Die)"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:MOVING_DIE_HALF_EJECTOR_DIE"
  data_integrity_hash: "3ad4630145fac4a1c83630f64ea1c2b4"
  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:MOVING_DIE_HALF_EJECTOR_DIE"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/moving-die-half-ejector-die.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/moving-die-half-ejector-die"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-2.5 MPa hydraulic pressure, 20-120°C operating temperature, 0.01-0.05 mm/s movement speed"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 3.0
    unit: "MPa"
    consequence: "Thermal fatigue from cyclic heating (20-120°C) and cooling during casting cycles causes microcrack initiation at stress concentrators (e.g., ejector pin holes) following Coffin-Manson fatigue law with exponent n=0.33 for die steel"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Hydraulic fluid contamination exceeding ISO 4406 18/16/13 cleanliness level"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 3 μm absolute filtration with differential pressure monitoring at 0.15 MPa trigger"
  - node_2:
      trigger: "Uneven thermal gradient exceeding 50°C/mm across die face during solidification"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement conformal cooling channels maintaining ±5°C temperature uniformity using 40°C heat transfer fluid"
bom_nodes:
  ejector-plate:
    type: "component"
    urn: "URN:CNFX:ME:EJECTOR_PLATE"
    interface_type: "physical-logic-coupled"
  ejector-pins:
    type: "component"
    urn: "URN:CNFX:ME:EJECTOR_PINS"
    interface_type: "physical-logic-coupled"
  return-pins:
    type: "component"
    urn: "URN:CNFX:ME:RETURN_PINS"
    interface_type: "physical-logic-coupled"
  guide-pinsbushings:
    type: "component"
    urn: "URN:CNFX:ME:GUIDE_PINSBUSHINGS"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "ANSI B94.5.1M-1985 (R2020) CUTTING TOOLS - MILLING CUTTERS"
    scope: "Verified Engineering Specification"
  - standard: "DIN 16742:2013 PLASTICS MOULDING TOOLS - INJECTION MOULDS AND COMPRESSION MOULDS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/moving-die-half-ejector-die.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "38108443a6ceb1313bc835c1cf1a5141f4bf284a4e275efa6d103585db08b0f8"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Moving Die Half (Ejector Die)

## 1. Technical Definition
The movable half of a die casting die that contains ejector mechanisms to remove castings

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-2.5 MPa hydraulic pressure, 20-120°C operating temperature, 0.01-0.05 mm/s movement speed**. Failure boundary: **Hydraulic pressure exceeding 3.0 MPa causes seal extrusion, temperature above 150°C initiates thermal expansion mismatch exceeding 0.15 mm, movement speed beyond 0.08 mm/s induces hydraulic hammer pressure spikes to 4.2 MPa**, Mechanism: **Thermal fatigue from cyclic heating (20-120°C) and cooling during casting cycles causes microcrack initiation at stress concentrators (e.g., ejector pin holes) following Coffin-Manson fatigue law with exponent n=0.33 for die steel**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Hydraulic fluid contamination exceeding ISO 4406 18/16/13 cleanliness level | 8 | Spool valve stiction causing ejector plate misalignment of 0.5-2.0 mm | Install 3 μm absolute filtration with differential pressure monitoring at 0.15 MPa trigger |
| Uneven thermal gradient exceeding 50°C/mm across die face during solidification | 8 | Differential thermal expansion inducing warpage of 0.1-0.3 mm at ejector plate mounting surface | Implement conformal cooling channels maintaining ±5°C temperature uniformity using 40°C heat transfer fluid |

## 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**: **Die Casting Machine**, **Industrial Chiller**, **Lubrication System**  
**Downstream Applications**: Automotive Engine Blocks, Aluminum Housings for Electronics, Zinc Alloy Hardware Components  

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

### Q: What materials are commonly used for Moving Die Half (Ejector Die) construction?
**A**: Common materials include tool steels like H13 and P20 for durability, maraging steel for high-strength applications, and beryllium copper for inserts requiring high thermal conductivity.

### Q: What components are included in the BOM for a Moving Die Half?
**A**: The Bill of Materials typically includes ejector plates, ejector pins, return pins, and guide pins/bushings to ensure proper alignment and ejection functionality.

### Q: How does the Moving Die Half function in die casting operations?
**A**: The Moving Die Half contains ejector mechanisms that activate after casting solidification to push the finished casting out of the die cavity, ensuring efficient production cycles.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- ANSI B94.5.1M-1985 (R2020) CUTTING TOOLS - MILLING CUTTERS
- DIN 16742:2013 PLASTICS MOULDING TOOLS - INJECTION MOULDS AND COMPRESSION MOULDS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Moving Die Half (Ejector Die)](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/moving-die-half-ejector-die)**

### 🌐 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**: MOVING_DIE_HALF_EJECTOR_DIE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 071d2634
