S136 Precision Taper Core Pins for Medical Injection Molds
Product Overview
S136 Precision Taper Core Pins are high-precision mold components designed for medical injection molding applications that require corrosion resistance, mirror surface finish, and micro-feature accuracy. These tapered core pins are typically used to form fine holes, micro cavities, and thin internal structures in medical plastic parts.
Manufactured from S136 stainless mold steel, these core pins offer superior corrosion resistance, excellent polishability, and stable dimensional accuracy. The tapered geometry improves demolding performance and reduces stress on delicate molded parts.
S136 taper core pins are widely used in molds producing medical consumables, laboratory plastics, pharmaceutical packaging components, and precision medical devices.
Product Description
In medical injection molds, many components require very small internal features, thin pins, or deep micro holes. Standard straight core pins can cause sticking or damage to molded parts during ejection.
Taper core pins are designed to gradually reduce diameter toward the tip, which helps:
- Improve part release
- Reduce friction between the molded plastic and the core pin
- Protect fragile plastic structures during demolding
Using S136 stainless mold steel provides additional advantages in medical applications, including resistance to corrosion from moisture, plastic additives, or cleaning agents used in medical production environments.
Our S136 precision taper core pins are manufactured through precision CNC machining, micro grinding, and mirror polishing to achieve extremely smooth surfaces and tight tolerances.
Key Product Features
- Manufactured from S136 stainless mold steel
- Excellent corrosion resistance and polishability
- Precision tapered geometry for smooth mold release
- Suitable for micro injection molding
- Ultra-smooth surface finishing
- High dimensional stability in long production cycles
- Custom diameters, lengths, and taper angles available
- Machining tolerance up to ± 0.005 mm
These features make them ideal for high-precision medical injection molds and high-cavity production tools.
Applications
S136 precision taper core pins are widely used in medical and laboratory plastic injection molds where corrosion resistance and surface finish are critical.
Medical Consumable Molds
Used for molds producing medical plastic components such as connectors, caps, and small functional parts.
Laboratory Plastic Products
Suitable for molds producing laboratory tubes, diagnostic parts, and micro plastic components.
Pharmaceutical Packaging Components
Used in molds producing pharmaceutical plastic closures and packaging accessories.
Micro Precision Injection Molding
Ideal for molds requiring micro cavities, thin wall structures, and precision holes.
High-Cavity Medical Molds
Ensures consistent dimensional accuracy across multi-cavity molds running high-volume production.
Precision & Manufacturing Capabilities
We manufacture precision medical mold components using advanced machining technology and strict quality control.
Our Capabilities Include:
- High precision CNC turning and milling
- Micro grinding and taper grinding
- Mirror polishing and fine finishing
- Professional vacuum heat treatment
- Precision dimensional inspection
- Machining tolerance up to ± 0.005 mm
Special attention is given to surface finish, straightness, and concentricity, which are essential for medical injection molding components.
Reliable Precision for Medical Mold Production
Corrosion Resistance for Medical Environments
S136 stainless mold steel resists corrosion caused by moisture, cleaning agents, or aggressive plastics used in medical applications.
High Surface Quality
Mirror polishing capability ensures smooth plastic flow and excellent molded surface finish.
Improved Mold Release
The tapered design reduces demolding resistance and protects delicate molded features.
Long Mold Component Life
Wear-resistant material and precision machining improve durability and reduce maintenance.
Stable High-Volume Production
Consistent dimensional accuracy supports continuous operation in multi-cavity medical molds.
What We Need for Quotation
To provide an accurate quotation for custom S136 taper core pins, please provide:
- 2D drawings or 3D CAD files
- Core pin diameter, taper angle, and length
- Tolerance requirements
- Surface finish or polishing requirements
- Material specification (S136 or equivalent)
- Quantity required
- Mold application details
Our engineering team will review your drawings and recommend the most suitable manufacturing solution.
Frequently Asked Questions
What is the difference between straight core pins and taper core pins?
Taper core pins gradually reduce in diameter toward the tip, which helps improve mold release and reduces the risk of damaging delicate molded parts.
Why is S136 steel used for medical mold core pins?
S136 is a high-quality stainless mold steel known for its corrosion resistance, excellent polishability, and dimensional stability, making it ideal for medical molds.
Can these taper core pins be customized?
Yes. Diameter, taper angle, length, head structure, and surface finishing can all be custom manufactured based on mold drawings.
What tolerance can be achieved?
Our machining capability for precision mold components can achieve ± 0.005 mm tolerance.
Are these core pins suitable for high-cavity molds?
Yes. They are designed to maintain stable dimensional accuracy in multi-cavity medical injection molds.
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