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SKD61 Collapsible Core Inserts for Plastic Injection Molds
Specialized molding components designed to create internal undercuts and complex internal geometries that cannot be demolded with standard straight cores.
Product Overview
Collapsible core inserts mechanically contract during ejection to enable smooth part release while maintaining tight tolerances on internal features. Our SKD61 collapsible core inserts are custom precision mold components manufactured from hot-work tool steel known for its toughness, thermal fatigue resistance, and stability.
Core Function & Applications
Create internal undercuts without part damage
Produce internal profiles requiring tight concentricity and repeatability
Improve mold efficiency by reducing complex mechanisms
Ideal for parts with internal locking features and smooth internal surfaces
SKD61 Material Advantages
Excellent toughness to resist chipping and cracking
Superior heat resistance and thermal fatigue performance
Reliable heat treatment capability for optimal hardness
Balanced machinability for precision fitting surfaces
Final material condition, hardness, and surface treatment are built to your drawing and operating requirements.
Manufacturing & Precision Capabilities
Precision CNC turning/milling for core components
EDM/wire EDM for complex segment profiles
Grinding for critical fits and guiding surfaces
Heat treatment coordination for hardness and stability
Fine finishing/polishing for forming and sliding interfaces
Quality Control & Documentation
Dimensional inspection reports available
Material and heat treatment records upon request
Traceability marking options for assembly management
Consistent internal features for improved part quality
Improved ejection reliability with reduced part damage risk
Longer service life under repeated motion cycles
Quotation Requirements
To provide accurate pricing for SKD61 collapsible core inserts, please supply:
3D CAD (STEP/IGES) and 2D drawing (PDF/DWG)
Internal feature details and undercut geometry
Mold interface requirements and installation specifications
Target hardness/heat treatment specifications
Surface finish requirements for forming zones
Expected resin type and production conditions
Quantity requirements and lead time expectations
Request Your Custom Quote
Send us your drawings (STEP/2D), quantity, and required delivery date for SKD61 collapsible core inserts. We will reply with a clear quotation, lead time, and available quality documentation.