Superior performance in plastic injection molding begins with high-grade Injection Mold Components. We understand that downtime is the enemy of profitability, which is why our mold parts are engineered for extreme thermal stability and minimal friction. From ejector systems to cooling components, we provide the building blocks for high-cycle production.

  • Materials: SKD61 (H13), 1.2344, Beryllium Copper
  • Precision: Concentricity and Cylindricity up to 0.005mm
  • Surface: Nitrided HRC 65-70 or Mirror Polished SPI A-1

Mold Components

Plastic mold components (Injection Mold Components)are specialized parts used in plastic injection molding. They shape and form molten plastic into desired shapes. Examples include cavity inserts, sprue bushings, ejector pins, gate systems, cooling channels, and more. These components ensure accurate, consistent, and high-quality plastic parts.

  • Nipples

    Nipples

    Rapid Coupling: Water quick connector, convenient and quick to install, available in various model specifications.

  • Oil-Free Slide Units for Loose Core

    Oil-Free Slide Units for Loose Core

    Oil-free slide units for loose core applications are essential components used in mold and die setups to facilitate smooth movement and precise control of loose cores during the molding process. These units offer a unique advantage of operating without the need for additional lubrication, making them ideal for environments where oil contamination is a concern….

  • Oil-Free Slide Units for Loose Core - Standard, Fixed Loose Core

    Oil-Free Slide Units for Loose Core – Standard, Fixed Loose Core

    Oil-Free Slide Units for Loose Core: Precision in Core Movements In the realm of precision mold-making, Oil-Free Slide Units for Loose Core emerge as a game-changing solution, offering seamless and accurate movements for loose cores in both vertical and horizontal directions. These units redefine precision by minimizing clearances and maximizing accuracy in every movement. Reimagining…

  • Parting Lock Sets

    Parting Lock Sets

    What is Parting lock sets ? Parting lock sets are vital components used in various industries to ensure precise alignment and secure positioning of molds and dies. These sets consist of components such as locks, pins, bushings, and springs, working together to maintain the integrity of mold halves during the molding or casting process. Parting…

  • Parting Locks

    Parting Locks

    Parting locks, also known as mold locks or mold separation locks, are essential components in mold and die applications. They play a crucial role in ensuring the proper separation of mold halves or sections after the molding process is complete. Parting locks enhance the efficiency, safety, and overall quality of molding operations. Key Features: Precise…

  • Positioning & Guide Components

    Positioning & Guide Components

    What is Positioning & Guide Components? Positioning and guide components are essential elements in molding processes, used to ensure accurate alignment and movement of mold components. They contribute to precise part formation and consistent quality. Gunri offers high-precision positioning and guide components crafted for accurate mold assembly and part ejection. Our components enhance mold stability…

  • Precision Ejector Sleeves

    Precision Ejector Sleeves

    High-performance Ejector Sleeves (Camisas de Extração) designed for reliable part ejection in multi-component molds. Perfectly matched with our center pins for seamless operation.

    • Material: SKD61 / H13

    • Hardness: Surface 900-1100 HV

    • Standard: DIN 1530-D / JIS

  • Puller Bolt A Type

    Puller Bolt A Type

    Puller Bolts A Type

  • Puller Bolt C Type

    Puller Bolt C Type

    Puller Bolts C Type

  • Rectangular Ejector Pins

    Rectangular Ejector Pins

    What is Rectangular Ejector Pins ? Rectangular ejector pins are essential components in molding and casting processes, designed specifically to eject parts with flat or rectangular surfaces from molds. They play a critical role in ensuring efficient part ejection. Gunri specializes in providing high-quality rectangular ejector pins that are meticulously crafted for precise part ejection….

  • Rifle Z1500

    Rifle Z1500

    Helical Spindle Z1500: Available in left-handed and right-handed versions, choose matching Rifle and Rifle sets to avoid installation issues.

  • Roller Lock Sets

    Roller Lock Sets

    Enhance Mold Opening and Closing with Roller Lock Sets – Normal and Slim Bushings Introducing our innovative Roller Lock Sets, available in both Normal and Slim Bushing configurations, designed to optimize mold opening and closing operations. These sets are equipped with advanced mechanisms, including belleville springs, internal rollers, and lock rollers, ensuring precise and well-balanced…

  • Runner & Gate Components:

    Runner & Gate Components:

    What is Runner & Gate Components? Runner and gate components are crucial elements in injection molding systems, responsible for guiding the flow of molten material into the mold cavity. They play a pivotal role in ensuring successful part formation. Gunri specializes in providing reliable runner and gate components designed for efficient material flow and optimal…

  • Runner Lock Pin

    Runner Lock Pin

    Pull Pin: Shortens cooling time of the flow channel and prevents mold release.

  • Screw Rod Z961

    Screw Rod Z961

    Spiral Core Z961: The spiral water transport method enhances cooling efficiency.

  • shouldered-ejector-pins-stepped-mold-pins-pinos-extratores-com-ressalto

    Shouldered Ejector Pins

    High-precision Shouldered Ejector Pins designed for increased stability and strength in injection molding. These Pinos Extratores com Ressalto (Stepped Pins) are ideal for small diameter ejection requirements where extra support is needed at the base.

    • Type: Stepped / Shouldered Design

    • Service: OEM Customization according to your drawings.

Applications

Medical & Healthcare: High-precision components for cleanroom-grade syringe molds and diagnostic device housings.

Consumer Electronics: Critical parts for thin-wall molding of smartphone frames and micro-connectors.

High-Speed Packaging: Durable ejector and venting solutions for multi-cavity bottle cap and thin-wall container molds.

Technical FAQ

Q: How do you handle the venting issues in injection mold components?

A: We provide specialized venting pins and porous metal inserts that allow gas to escape while preventing flash, significantly reducing gas burn defects in plastic parts.

Q: Can you manufacture custom components according to our 3D CAD files?

A: Yes, we specialize in non-standard components. We can process STP, STEP, or IGS files and maintain tolerances as tight as 0.002mm for custom cores and cavities.

Q: What is the recommended maintenance for moving mold parts?

A: We suggest regular inspection of lubrication channels. For cleanroom applications, we provide DLC-coated or self-lubricating graphite components that operate without oil to prevent product contamination.