H13 Steel Long Ejector Pins for Deep Die Casting Molds with Precision Ground Surfaces

H13 Steel Long Ejector Pins are specialized die casting mold components designed for deep cavity molds where standard ejector pins cannot reach the casting surface. These extra-length pins are used in the ejection system of high-pressure die casting molds to safely remove metal castings from deep or narrow mold cavities.

Manufactured from H13 hot-work tool steel, long ejector pins provide excellent resistance to high temperatures, thermal fatigue, and mechanical stress. Their long and slender structure allows precise force transmission while maintaining stability during repeated casting cycles.

These ejector pins are commonly used in aluminum, zinc, and magnesium die casting molds, particularly in molds that produce deep structural parts or components with extended internal cavities.

Long ejector pins are designed for deep mold structures where the distance between the ejector plate and the cavity surface is greater than standard pin lengths. In such molds, long pins are required to transmit the ejection force through the mold assembly to the casting surface.

During the die casting cycle:

1. Molten metal fills the mold cavity
2. The metal solidifies under high pressure
3. The mold opens
4. The ejector system activates and long ejector pins push the casting out of deep cavities

Because long ejector pins operate under high temperature and high mechanical load while maintaining a slender structure, they must be manufactured with precise machining and strong material properties.

Our H13 steel long ejector pins are produced using precision CNC machining, grinding, and professional heat treatment to ensure durability and dimensional stability.

• Manufactured from H13 hot-work tool steel
• Designed for deep cavity die casting molds
• High resistance to heat, wear, and thermal fatigue
• Precision ground surfaces for smooth sliding movement
• Excellent straightness for long-length pins
• Custom lengths and diameters available
• Machining tolerance up to ± 0.005 mm

These features ensure stable ejection performance even in complex deep mold structures.

H13 steel long ejector pins are mainly used in deep cavity die casting molds where standard ejector pins cannot provide sufficient reach.

• Deep Aluminum Die Casting Molds - Used for molds producing aluminum parts with deep cavities or tall structural features
• Zinc Die Casting Molds with Long Core Structures - Suitable for molds requiring extended ejector reach to release zinc cast parts
• Magnesium Die Casting Tooling - Used in magnesium casting molds where lightweight structural parts require deeper cavity designs
• High-Pressure Die Casting (HPDC) Mold Ejection Systems - Essential components for transmitting ejection force in deep or complex mold structures
• Large or Multi-Layer Mold Structures - Applicable when mold design includes thick mold plates or extended cavity depths

We manufacture precision die casting mold components using advanced machining technology and strict quality control systems.

Our capabilities include:

• High-precision CNC turning and milling
• Wire EDM machining
• Precision grinding and straightness control
• Professional vacuum heat treatment
• Custom manufacturing based on drawings
• Dimensional tolerance up to ± 0.005 mm

Special attention is given to straightness and concentricity, which are critical for long ejector pins to ensure smooth operation within the mold guide holes.

• Designed for Deep Cavities - Long ejector pins allow engineers to eject cast parts from deep mold sections without redesigning the mold structure
• Stable Force Transmission - High-strength H13 steel ensures that long pins can transmit ejection force without bending or deformation
• Reduced Risk of Mold Damage - Precision machining and smooth surfaces prevent friction damage to guide holes
• Extended Mold Service Life - Durable materials and accurate manufacturing improve the longevity of mold components
• Reliable High-Volume Production - Stable ejector performance supports continuous die casting production cycles

To provide an accurate quotation for custom long ejector pins, please provide:

• 2D drawings or 3D CAD files
• Required pin length, diameter, and head structure
• Tolerance requirements
• Material specification (H13 or equivalent)
• Heat treatment or coating requirements
• Order quantity
• Application type (aluminum, zinc, or magnesium die casting)

Our engineering team will review your drawings and provide a suitable manufacturing solution.

What are long ejector pins used for in die casting molds?

Long ejector pins are used in molds with deep cavities or thick mold plates, where standard ejector pins cannot reach the casting surface.

Why is H13 steel used for long ejector pins?

H13 hot-work tool steel provides excellent heat resistance, toughness, and fatigue resistance, which are essential for die casting applications.

How do long ejector pins maintain straightness?

Precision grinding and strict straightness control ensure stable movement and prevent bending during operation.

Can long ejector pins be customized?

Yes. Length, diameter, head structure, and tolerance can all be custom manufactured according to mold design drawings.

What tolerance can be achieved?

Our machining precision for die casting mold components can reach ± 0.005 mm.