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D-2 Tool Steel Flanged Core Insert

Flanged Core Inserts are precision-engineered from premium D-2 tool steel to deliver excellent hardness, wear resistance, and dimensional stability. This component features a cylindrical core body, central through hole, top profile relief slots, and a flanged mounting base with positioning holes. It is designed to ensure accurate mold assembly, stable core positioning, and reliable performance in high-precision injection molding applications.

They are widely used in bottle cap molds, cosmetic packaging molds, medical device molds, plastic closure molds, automotive plastic molds, and other precision injection molding applications requiring accurate internal forming, stable alignment, and long service life.

Quick Info:
  • Material: D-2 Tool Steel
  • Hardness: HRC 58–62
  • Tolerance: ±0.01 mm
  • Surface Finish: Polished / Ground
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High-Precision Engineering

Our flanged core inserts are manufactured using precision CNC turning and grinding equipment to ensure accurate outer diameter, inner hole size, roundness, and perpendicularity. The cylindrical core body and flange base are carefully controlled to maintain stable positioning inside the mold.

This allows the insert to fit securely within the mold structure, helping reduce assembly deviation and ensuring consistent molded part quality during repeated production cycles.

Durable D-2 Tool Steel Construction

Made from D-2 high-carbon, high-chromium tool steel, this insert offers:

Excellent wear resistance
High compressive strength
Stable hardness after heat treatment
Good dimensional stability under repeated molding cycles
Long service life for high-volume production

It is ideal for plastic molds, bottle cap molds, cosmetic packaging molds, medical molds, and automotive molds where strength, precision, and durability are critical.

Optimized for Precision Mold Assembly

Flanged core inserts are designed to provide accurate positioning and stable support within mold systems. This part can be used for:

Internal hole forming
Core positioning
Mold insert alignment
Plastic part cavity support
Precision guiding and locating structures

The flange mounting design improves installation stability and helps the mold maintain consistent accuracy during long-term production.

Key Features & Advantages

  • Precision Engineering: Advanced CNC turning, milling, EDM, and grinding processes ensure stable control of critical dimensions, concentricity, and mounting accuracy.
  • Extended Mold Life: Premium D-2 tool steel and optimized heat treatment enhance wear resistance and prolong mold service life.
  • Stable Mold Assembly: The flange base and precision mounting holes support accurate installation, reducing assembly deviation and improving production consistency.
  • Custom Manufacturing Capability: Custom manufacturing is available based on drawings, samples, and specific injection mold requirements.

Technical Specifications

ParameterSpecification
MaterialD-2 Tool Steel
HardnessHRC 58–62
Dimensional Tolerance±0.01 mm
ConcentricityCustom According To Drawing
Surface RoughnessRa ≤0.05 μm Available
Manufacturing ProcessCNC Turning, CNC Milling, Grinding, Wire EDM, EDM
Heat TreatmentAvailable
Surface FinishPolished / Ground
CustomizationSupported

Applications

  1. Automotive
    Used in plastic molds for connectors, interior components, sensor housings, and other molded parts requiring stable core positioning.
  2. Medical
    Suitable for medical device molds, disposable plastic components, tube fittings, and precision parts that require consistent molding quality.
  3. Consumer Electronics
    Applied in molds for small housings, buttons, brackets, and internal plastic structures with tight dimensional requirements.
  4. Plastic Packaging
    Ideal for bottle caps, closures, cosmetic packaging components, and container mold systems requiring smooth core forming.
  5. Automation
    Used in mold systems and tooling components for automated production lines where repeatable positioning and long service life are required.

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