Editorial Technical Reference

Die Body/Housing

This page explains how Die Body/Housing is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

The main structural component of a die head that houses and supports all internal die components.

View Full Specifications Explore Manufacturing Sources
Die Body/Housing in a manufacturing environment
Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Die Body/Housing

Definition
The die body or housing is the primary structural frame of a die head assembly, typically made from high-strength materials to withstand extrusion pressures. It serves as the containment vessel that houses the die plate, breaker plate, heating elements, and other internal components while providing mounting interfaces for the extruder barrel and downstream equipment. Its design ensures proper alignment, thermal management, and structural integrity during the extrusion process. The die body is a critical component in machinery and equipment manufacturing, specifically within extrusion systems. It is typically manufactured from tool steel, stainless steel, or alloy steel, with material grades such as 45# steel or 40Cr referenced in standards GB/T 699 and GB/T 3077. Hardness is typically specified in the range of 28–32 HRC, and surface roughness is maintained at Ra 0.8–1.6 μm to ensure proper sealing and wear resistance. The cavity diameter can range from 50 to 300 mm, and overall dimensions vary from 200×200×150 mm to 600×600×400 mm, with weights between 50 and 500 kg. Operating temperature ranges from -20°C to 200°C, and operating pressure is typically 1.0–1.6 MPa. Tolerance grades are IT7–IT8, with concentricity and flatness limited to ≤0.02 mm and ≤0.05 mm, respectively. Sealing surface finish is Ra 0.4–0.8 μm, and corrosion resistance is verified via salt spray testing for 48–72 hours. These parameters are directory reference ranges and must be confirmed for the specific model and application. Always verify model-specific values and standards with the legal manufacturer or supplier.
Working Principle
The die body provides a rigid, sealed enclosure that maintains precise alignment of internal die components while withstanding high temperatures and pressures during material extrusion. It facilitates heat transfer from heating elements to the material flow path and ensures consistent material flow distribution through the die assembly. The body's structural integrity prevents deformation under load, and its mounting interfaces ensure proper connection to the extruder and downstream equipment. Thermal management is achieved through the material's thermal conductivity and the design of heating element placement. The die body also acts as a pressure vessel, containing the extrusion pressure within safe limits. Proper alignment of internal components is critical to achieving uniform wall thickness and product quality. The die body's sealing surfaces prevent leakage of molten material, and its surface finish reduces friction and wear. The operating principle relies on the die body's ability to maintain dimensional stability under varying thermal and mechanical stresses, ensuring consistent extrusion output.
Common Materials
Tool steel, Stainless steel, Alloy steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Material Grade45# steel or 40CrHigher strength and wear resistance for high-pressure diesGB/T 699, GB/T 3077
Hardness28–32 HRCBalances toughness and wear resistanceGB/T 230.1
Surface RoughnessRa 0.8–1.6 μmAffects die life and product finishGB/T 1031
Cavity Diameter50–300 mmDetermines maximum part size
Overall Dimensions200×200×150 – 600×600×400 mmMust fit press and die set
Weight50–500 kgAffects handling and press capacity
Operating Temperature-20–200 °CAbove 200°C may require heat-resistant alloys
Operating Pressure1.0–1.6 MPa
Tolerance GradeIT7–IT8Critical for alignment of internal componentsISO 286-1
Concentricity≤0.02 mmEnsures uniform wall thickness and balanceISO 1101
Flatness≤0.05 mmAffects sealing and mountingISO 1101
Sealing Surface FinishRa 0.4–0.8 μmPrevents leakage under pressureGB/T 1031
Corrosion ResistanceSalt spray 48–72 hRequired for humid or chemical environmentsGB/T 10125

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
  • Housing Body
    The housing itself: encloses and locates the internal parts and provides the mounting interface.
  • Mounting Flange Part
    Provides secure attachment interface to extruder barrel
    Material: steel
  • Heating Element Channels
    Houses cartridge heaters or band heaters for temperature control
    Material: steel
  • Thermocouple Wells
    Accepts temperature sensors for process monitoring
    Material: steel
  • Flow Channels Part
    Directs material flow from extruder to die plate
    Material: steel

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10,000 psi (690 bar) standard, higher with specialized designs
flow rate: Dependent on internal geometry and port sizing
temperature: -40°C to 400°C (dependent on material grade)
slurry concentration: Up to 60% solids by weight (material dependent)
Media Compatibility
✓ High-pressure hydraulic fluids ✓ Polymer melts (plastics extrusion) ✓ Abrasive mining slurries
Unsuitable: Concentrated hydrofluoric acid or other severe chemical etchants
Sizing Data Required
  • Maximum operating pressure and pressure cycles
  • Required port/connection sizes and standards
  • Die internal component dimensions and mounting requirements

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue cracking
Cause: Cyclic loading from repeated die operation, stress concentrations at sharp corners or bolt holes, and material defects or improper heat treatment.
Wear and scoring
Cause: Abrasive particles from workpiece material or contamination, inadequate lubrication, misalignment causing uneven contact, and excessive operating pressure.
Maintenance Indicators
  • Visible cracks or deformation on the housing surface, especially near stress points or mounting areas.
  • Unusual noises such as grinding, clicking, or popping during operation, indicating internal wear or component failure.
Engineering Tips
  • Implement regular non-destructive testing (e.g., ultrasonic or dye penetrant inspection) to detect early-stage cracks before catastrophic failure.
  • Ensure proper alignment and mounting, use recommended lubricants, and maintain clean operating conditions to minimize abrasive wear and stress concentrations.

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
ASTM A681-08(2019) - Standard Specification for Tool Steels Alloy CE Marking - Machinery Directive 2006/42/EC

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.01mm
  • Parallelism of mounting surfaces: 0.02mm
Quality Inspection
  • Dimensional verification with CMM
  • Hardness testing (Rockwell C scale)
Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

Compare the published product scope and source details, then include your specifications and quantity in an enquiry.

Manufacturers of Die Body/Housing

Manufacturer profiles associated with Die Body/Housing.

Sourcing Die Body/Housing from China?
Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.
Request manufacturers We manufacture this

Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.

Buyer enquiry

Request manufacturing insight for Die Body/Housing

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes
Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here
We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman
CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What to include
Share your product specifications, quantity, destination and target delivery date.

Your business information is used only to process this request.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at [email protected].

Frequently Asked Questions

What materials are commonly used for die bodies?

Common materials include tool steel, stainless steel, and alloy steel. Specific grades such as 45# steel or 40Cr are referenced in standards GB/T 699 and GB/T 3077. The choice depends on required strength, wear resistance, and operating environment.

What are typical hardness and surface roughness values?

Hardness is typically specified as 28–32 HRC, and surface roughness is Ra 0.8–1.6 μm for general surfaces. Sealing surfaces may require a finer finish of Ra 0.4–0.8 μm. These values affect die life and product finish.

How do I verify the die body meets my requirements?

Check the specified parameters such as cavity diameter, overall dimensions, weight, operating temperature, pressure, tolerance grade, concentricity, flatness, and corrosion resistance. Always confirm these values with the legal manufacturer or supplier for your specific model and application.

What standards apply to die body manufacturing?

Relevant standards include GB/T 699 for material, GB/T 3077 for alloy steel, GB/T 230.1 for hardness, GB/T 1031 for surface roughness, ISO 286-1 for tolerance, ISO 1101 for geometric tolerances, and GB/T 10125 for salt spray testing. These are verification references, not proof of certification.

Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Related equipment

Applied To / Applications

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

Die Head
View system integration details

Industrial Ecosystem & Supply Chain Structure

Specialized Tooling

Data Basis

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

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.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 12 October 2026

Need to Manufacture Die Body/Housing?

Compare manufacturer profiles with relevant product and process capability.

Create Manufacturer Profile Contact Us
Previous Product
Z-axis Ram/Spindle
Last Product
Get QuotesChat