Structured Manufacturing Data (2026)

Extrusion Die

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Extrusion Die used in the Basic Metal Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Extrusion Die is characterized by the integration of Die Plate and Bearing Surface. In industrial production environments, manufacturers listed on CNFX commonly emphasize H13 Hot Work Tool Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A precision tool that shapes molten aluminum into specific cross-sectional profiles during extrusion.

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Product Specifications

Technical details and manufacturing context for Extrusion Die

Definition
A critical component in the Aluminum Profile Extrusion Production Line that determines the final shape, dimensions, and surface quality of extruded aluminum profiles. It consists of a die body with precisely machined openings that force heated aluminum billet through under high pressure to form continuous lengths of specific cross-sections.
Working Principle
Heated aluminum billet is forced through the die opening under high hydraulic pressure. The die's shape determines the profile geometry as the aluminum flows through, with the material conforming to the die cavity before exiting as a continuous extruded shape that is then cooled and cut to length.
Common Materials
H13 Hot Work Tool Steel, Tungsten Carbide
Technical Parameters
  • Die opening dimensions determining profile cross-section (mm) Standard Spec
Components / BOM
  • Die Plate Part
    Main body containing the profile opening that shapes the aluminum
  • Bearing Surface Part
    Controls material flow and provides final shaping of the extruded profile
  • Backer Plate Part
    Supports the die plate against extrusion pressure and prevents deformation
  • Bolster Plate Part
    Distributes pressure evenly across the die assembly

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Extrusion Die.

aluminum extrusion die H13 steel custom extrusion die for metal manufacturing tungsten carbide extrusion die plate precision extrusion die bearing surface extrusion die bolster plate backer

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Precision Aluminum Extrusion Profile
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10,000 psi (689 bar) maximum operating pressure
flow rate: Variable based on profile complexity, typically 0.5-5 m/min extrusion speed
temperature: 400-550°C (typical aluminum extrusion range)
slurry concentration: Not applicable (handles molten aluminum, not slurry)
Media Compatibility
✓ 6000-series aluminum alloys (e.g., 6061, 6063) ✓ 7000-series aluminum alloys (e.g., 7075) ✓ Pure aluminum (1000-series)
Unsuitable: Highly abrasive materials (e.g., metal matrix composites with ceramic particles)
Sizing Data Required
  • Required cross-sectional profile dimensions and tolerances
  • Target extrusion speed and production rate
  • Alloy type and billet diameter

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal fatigue cracking
Cause: Repeated heating/cooling cycles during extrusion cause thermal expansion/contraction stresses, leading to crack initiation and propagation in die steel, especially at sharp corners or stress concentrators.
Abrasive wear and erosion
Cause: High-velocity flow of molten polymer containing abrasive fillers (e.g., glass fibers, minerals) or pigments gradually erodes die flow channels and land areas, altering flow geometry and increasing pressure drop.
Maintenance Indicators
  • Visual: Irregular or wavy extrudate surface (shark skin, melt fracture) indicating die land wear or contamination buildup
  • Audible/Operational: Sudden pressure spikes or unusual flow noises (hissing, gurgling) suggesting partial blockage, degraded seals, or internal damage
Engineering Tips
  • Implement controlled heating/cooling protocols: Use gradual ramp-up/cooldown rates (≤5°C/min) and maintain die within optimal thermal operating window to minimize thermal shock and stress.
  • Apply specialized surface treatments: Use plasma nitriding, hard chrome plating, or PVD coatings on flow surfaces to enhance abrasion resistance and reduce material adhesion.

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 - Quality Management Systems ASTM E8/E8M - Standard Test Methods for Tension Testing of Metallic Materials DIN 8583-2 - Manufacturing processes - Forming under compressive conditions
Manufacturing Precision
  • Bore diameter: +/-0.01mm
  • Surface flatness: 0.05mm per 100mm
Quality Inspection
  • Dimensional verification with CMM (Coordinate Measuring Machine)
  • Hardness testing (Rockwell or Vickers scale)

Factories Producing Extrusion Die

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the difference between H13 steel and tungsten carbide extrusion dies?

H13 hot work tool steel offers excellent toughness and thermal fatigue resistance for high-volume aluminum extrusion, while tungsten carbide provides superior wear resistance and longer lifespan for abrasive alloys or complex profiles, though at higher cost.

How does the die plate work with other BOM components like the backer plate?

The die plate shapes the aluminum profile, while the backer plate supports it against extrusion pressure. The bolster plate holds the assembly, and the bearing surface controls metal flow and surface finish—all working together for precise, consistent extrusion.

What maintenance is required for aluminum extrusion dies?

Regular cleaning to remove aluminum buildup, inspection for wear or cracks on the bearing surface, and proper storage to prevent corrosion. H13 dies may require periodic heat treatment, while tungsten carbide needs careful handling to avoid chipping.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Basic Metal Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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