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Brand Name : SENLAN
Certification : ISO9001
Place of Origin : China
MOQ : 1pcs
Price : Negotiable
Payment Terms : L/C,T/T,Western Union,D/A,D/P
Supply Ability : 2000pcs/week
Delivery Time : 7-15 work days
Packaging Details : Coated with anticorrosive oil, packed in carton box
Model Number : CI-016
Material : S136,SKD61,SKH51
Hardness : HRC43-45
Accuracy : +/-0.01mm
Surface Treatment : Polished
Merits : Long-life
Application : Medical mould
Product : Plastic mold parts
Quality : High precision
S136 core inserts are high-performance mold components used on the core side (moving half) of plastic cap injection molds. They form critical internal features such as the cap inner diameter, threads, sealing zones, and fit-related geometries—areas that directly determine whether a cap assembles smoothly and seals reliably.
Manufactured from S136 stainless mold steel, these core inserts are commonly selected for cap molds because they combine excellent corrosion resistance, strong polishability, and stable heat-treatment performance—important when molds run long production cycles, face humid environments, or require frequent cleaning.
As a custom precision mold parts manufacturer, we machine S136 core inserts to customer drawings with strict control of datums, concentricity, surface finish, and fit tolerances, supporting both new mold builds and replacement cores.
A core insert (core) is the male forming component in an injection mold. In plastic cap molds, the core is especially critical because it defines functional dimensions and sealing performance.
S136 is a stainless mold steel widely used for molding environments where corrosion resistance and surface stability matter. Typical reasons customers choose S136 include:
These components are used in plastic cap injection molds as core inserts for multi-cavity or single-cavity systems.
(We focus on the mold function rather than claiming specific end products beyond "plastic caps," since cap geometry varies widely by project.)
Cap cores require tight control in both dimensional accuracy and surface quality, especially for threads and sealing areas.
In cap production, small deviations in core geometry can cause assembly issues, leakage, or inconsistent torque. Precision S136 cores help maintain stable sealing and consistent fit across long runs.
S136's corrosion resistance helps reduce rust-related surface defects and maintenance frequency, supporting longer mold uptime and cleaner production.
Properly finished core surfaces improve release behavior and help maintain consistent part appearance, reducing unplanned stoppages and scrap.
Core inserts allow targeted replacement instead of reworking the entire mold block, reducing downtime and maintenance cost.
To quote S136 core inserts accurately, please provide:
If you're replacing an existing core, providing the original drawing (or mating part dimensions) helps ensure drop-in fit.
Yes. We are a custom precision mold parts manufacturer and produce strictly to your drawings, tolerances, and datum definitions.
Yes. We can provide dimensional inspection reports and material certification upon request.
We can evaluate expedited production depending on geometry, heat treatment route, and required inspection scope.
S136 is commonly chosen for its strong corrosion resistance and good polishability. The best choice depends on environment, finish requirement, and lifecycle expectations—share your conditions and we can recommend accordingly.
Typically the sealing land, thread profile, and locating datums are most critical, because they affect sealing, assembly torque, and interchangeability.
Yes. We can manufacture core sets with controlled cavity-to-cavity consistency and provide inspection data for key dimensions.
Send us your STEP/2D drawings, tolerance requirements, and target hardness/finish, and we'll respond quickly with a clear quotation, lead time, and quality documentation options.
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S136 Core Inserts for Plastic Cap Injection Moulds - Corrosion Resistant, High Precision, Long-life Mold Components Images |