On the occasion of the Mid-Autumn Festival, all employees of Senlan Company gathered together to celebrate this traditional festival, and through a dynamic and fun team building activity, they further enhanced team cohesion and promoted communication and cooperation among colleagues. Fun Team Buildi
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Why Tolerance Control Determines Success in Precision Mold Components In precision mold manufacturing, tolerance control determines four practical results: fit and sealing performance, cavity-to-cavity consistency, replacement part interchangeability, and long-term mold stabil
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Custom Mold Components and Custom Tooling Solutions for Water Bottling, Skincare Packaging, and Medical Molds When buyers source custom mold components or compare custom tooling solutions, they are rarely looking for generic machining. They are trying to solve specific production pr
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A Quick Supplier Review ChecklistCapability to ReviewTypical Parts or FeaturesCommon Risk if WeakWhat Buyers Should Ask ForPrecision CNC turningCore pins, neck rings, thread inserts, cylindrical coresDiameter variation, poor concentricity, inconsistent assembly fitFirst article report, in-process in
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When customers ask about equipment, they’re rarely asking for machine brands. What they really want to know is this: Can you keep critical mold components stable enough to reduce bench fitting, prevent rework, and support consistent production—especially in multi-cavity molds？
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24-Cavity Bottle Cap Mold Case StudyStabilizing Cavity-to-Cavity Consistency for Water Seal ClosuresThis is an anonymized case study of a 24-cavity bottle cap mold developed for water bottle cap sealing and drinking water closure applications. The project focused on one core question:How do you keep
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Internal undercuts in injection molding pose major challenges, often causing project delays and higher costs. What seems a minor feature can turn a simple molding job into a complex process, requiring sophisticated mold mechanisms, raising maintenance costs, extending cycle times, causing inconsistent ejection, and leading to expensive fixes under tight tolerances.
In packaging and medical applications—where repeatability and uptime are critical—simplifying internal undercut molding without losing precision is a key industry challenge. Senlan Collapsible Core technology provides an innovative and practical solution.
This article explores the inherent difficulties of internal undercuts, the drawbacks of traditional methods, and how collapsible core technology reduces mold complexity, greatly improves stability, shortens cycle times, and optimizes overall part quality.
