Editorial Technical Reference

Extrusion Press

This page explains how Extrusion Press is classified within Basic Metal Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A hydraulic or mechanical press that forces heated aluminum billets through a die to create continuous profiles with specific cross-sectional shapes.

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Product Specifications

Technical details and manufacturing context for Extrusion Press

Definition
The extrusion press is the core component of an aluminum profile extrusion production line, responsible for applying immense pressure to push pre-heated aluminum billets through a precision die. This process shapes the aluminum into continuous lengths of profiles with complex cross-sections, which are then cooled, stretched, cut, and aged to achieve the final product specifications. The press operates by loading a heated billet into a container, where a hydraulic ram applies extreme force—typically ranging from 500 to 5,000 tons—to force the softened metal through a shaped opening in a steel die. The metal flows plastically, taking the exact shape of the die orifice to form a continuous profile. Key parameters include billet diameter (80–300 mm), billet length (300–1200 mm), maximum profile width (50–600 mm), and maximum profile length (6000–12000 mm). Extrusion speed ranges from 5 to 50 m/min, with billet and die temperatures maintained at 450–500°C and 400–480°C respectively to ensure optimal flow and surface quality. The main motor power is typically 90–400 kW, and cycle time ranges from 60 to 180 seconds. Control accuracy is ±0.5 mm for consistent dimensions. Machine weight varies from 20 to 150 tons, with footprint dimensions ranging from 8000×4000×3000 mm to 20000×8000×6000 mm. The press is constructed from high-strength alloy steel to withstand the extreme forces involved. For any specific model, verify all values and applicable standards with the legal manufacturer or supplier.
Working Principle
A heated aluminum billet is loaded into a container. A hydraulic ram applies extreme pressure (typically 1,500 to 15,000 tons), forcing the softened metal through a shaped opening in a steel die. The metal flows plastically, taking the exact shape of the die orifice to form a continuous profile.
Common Materials
High-strength alloy steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Nominal Force500–5000 tDetermines maximum billet size and profile complexity.
Billet Diameter80–300 mmMatches press capacity and profile cross-section.
Billet Length300–1200 mmAffects cycle time and yield.
Max Profile Width50–600 mmLimited by die size and press opening.
Max Profile Length6000–12000 mmDepends on runout table and cooling system.
Extrusion Speed5–50 m/minHigher speeds reduce cycle time but may affect surface quality.
Billet Temperature450–500 °COptimal for aluminum alloys; too low increases press load.
Die Temperature400–480 °CPrevents premature cooling and die wear.
Main Motor Power90–400 kWDrives hydraulic pumps; higher power for larger presses.
Cycle Time60–180 sIncludes billet loading, extrusion, and cutting.
Control Accuracy±0.5 mmPositioning accuracy of the ram for consistent profile dimensions.
Machine Weight20–150 tIndicates foundation requirements and transport logistics.
Footprint (L×W×H)8000×4000×3000–20000×8000×6000 mmVaries with press size; check site clearance.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Main Cylinder
    Generates the primary hydraulic force to push the ram
  • Ram/Stem Part
    Directly contacts and pushes the aluminum billet through the container
  • Container Part
    Holds the billet and die assembly under pressure during extrusion
  • Die Holder
    Secures the extrusion die in precise alignment with the container
  • Extrusion Die
    The shaped steel opening the metal is pushed through; it alone defines the profile.
    Material: Hot-work tool steel (H13)

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 1500 bar (hydraulic systems)
other spec: Extrusion speed: 5-50 m/min, billet diameter: 150-500 mm
temperature: 300-500°C (billet preheat)
Media Compatibility
✓ Aluminum alloys (6000/7000 series) ✓ Copper alloys ✓ Magnesium alloys
Unsuitable: High-titanium alloys (excessive die wear)
Sizing Data Required
  • Maximum extrusion force (tons)
  • Required profile cross-sectional area (mm²)
  • Annual production volume (tons/year)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Hydraulic cylinder seal failure
Cause: High pressure cycling, thermal degradation from fluid overheating, and contamination from metal particles or debris
Ram and liner scoring/wear
Cause: Misalignment during operation, inadequate lubrication, and abrasive particles in the billet material or environment
Maintenance Indicators
  • Unusual knocking or hammering sounds during the press stroke, indicating misalignment or loose components
  • Visible hydraulic fluid leaks around cylinder seals or connections, especially under pressure
Engineering Tips
  • Implement a strict contamination control program for hydraulic fluid with regular filtration and analysis to maintain ISO cleanliness codes
  • Establish a laser alignment verification schedule for the ram and press frame to prevent off-center loading and premature wear

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 12100:2010 - Safety of machinery ANSI B11.19 - Performance criteria for safeguarding CE Marking - Machinery Directive 2006/42/EC

Quoted from the published standard.

Manufacturing Precision
  • Ram alignment: +/-0.05mm per meter
  • Platen parallelism: 0.1mm across full surface
Quality Inspection
  • Hydraulic pressure test at 1.5x operating pressure
  • Dimensional verification of critical components via CMM

Manufacturers of Extrusion Press

Manufacturer profiles associated with Extrusion Press.

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Frequently Asked Questions

What is the typical force range of an extrusion press?

The nominal force typically ranges from 500 to 5,000 tons, depending on the press model. This determines the maximum billet size and profile complexity.

What billet temperatures are used?

Billet temperature is typically 450–500°C, while die temperature is 400–480°C. These ranges are optimal for aluminum alloys; too low a temperature increases press load.

What is the control accuracy of the press?

The control accuracy is typically ±0.5 mm, which ensures consistent profile dimensions. This is achieved through precise positioning of the ram.

What are the space requirements for installation?

The footprint ranges from 8000×4000×3000 mm to 20000×8000×6000 mm, and machine weight is 20–150 tons. Verify site clearance and foundation requirements with the supplier.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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