Pin Body: Diameter 1-10 mm, Length 20-150 mm

Component Specifications

Definition

The pin body is a critical component of venting pins used in precision casting molds, designed to create controlled pathways for air and gases to escape during molten metal injection. This prevents defects like porosity, incomplete filling, and surface imperfections by ensuring proper cavity evacuation and pressure equalization.

Working Principle

The pin body functions as the structural core of venting pins, maintaining dimensional stability while allowing gases to pass through micro-channels or porous structures. During casting, thermal expansion creates precise gaps between the pin body and mold, facilitating controlled venting without metal leakage.

Materials

High-temperature tool steel (H13, A2), tungsten carbide, or ceramic composites with heat resistance above 1000°C and minimal thermal expansion.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	20-150 mm
Diameter	1-10 mm
Hardness	45-62 HRC
Surface Finish	Ra 0.4 μm max
Pressure Rating	Up to 150 bar
Operating Temperature	Up to 1200°C

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

Standards

ISO 9001, DIN 8580

Parent Products

This component is used in the following industrial products

Precision Casting Mold Venting Pin

Precision venting pin for casting molds to release trapped gases and prevent porosity.

View Product Details

Engineering Analysis

Risks & Mitigation

Thermal fatigue cracking
Gas blockage from contamination
Dimensional inaccuracy causing leakage

FMEA Triads

Trigger: Insufficient material heat resistance
Failure: Premature deformation or melting
Mitigation: Use certified high-temperature alloys with proper heat treatment

Trigger: Poor surface finish
Failure: Gas trapping and incomplete venting
Mitigation: Implement precision grinding and polishing to Ra ≤0.4 μm

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.01 mm diameter, ±0.05 mm length

Test Method

Dimensional verification with CMM, pressure testing at 1.5x operating pressure, thermal cycling validation

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

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

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Pin Body

Manufacturer profiles associated with Pin Body.

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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

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Frequently Asked Questions

What is the primary function of a pin body in venting pins?

To provide structural integrity while enabling controlled escape of air and gases during metal casting to prevent defects.

How does material selection affect pin body performance?

Materials like H13 steel or tungsten carbide ensure thermal stability, wear resistance, and prevent deformation under high temperatures and pressures.

Data Basis

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

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.

Pin Body