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S136 Sliding Mold Core Base Assembly
- Material: S136 Stainless Mold Steel
- Hardness: HRC 48–52 after quenching and tempering
- Tolerance: ±0.001 mm for fitting & guiding surfaces
- Surface Finish: Precision ground
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High-Precision Engineering
Dual vertical guide post layout ensures balanced sliding force during side core pulling; self-lubricating brass bushings reduce friction between posts and seats. Dovetail slide rails and replaceable wear inserts extend module service life without replacing the whole base. Unified datum machining enables seamless interchange of slide inserts for different product cavity profiles, cutting mold modification costs significantly.
The integrated base plate with standardized mounting holes fits most standard mold frames, simplifying mold assembly and trial adjustment workflows.
Anti-Corrosion S136 Stainless Steel Substrate Advantages
Made from premium S136 martensitic stainless mold steel, this assembly delivers key performance strengths:
- Outstanding rust and chemical resistance for molding corrosive plastics (PVC, PA with flame retardants)
- High polishability for glossy, transparent molded part surfaces
- Balanced hardness and impact toughness to resist chipping under repeated core pull impact
- Minimal thermal deformation under fluctuating high mold temperatures Ideal for medical, transparent packaging and electronic precision molding environments with strict hygiene and appearance requirements.
Modular Customizable Structure
Fully adjustable design parameters to match production demands:
- Custom slide travel distance, forming cavity shape and guide post diameter
- Replaceable wear plate thickness and brass bushing size options
- Single or multi-cavity slide layout customization
- Optional surface treatments: ion nitriding, mirror polishing, TiN hard coating
Custom Engineering Support
- Full custom manufacturing based on customer CAD drawings or physical samples
- Material upgrade options: SKD61 for high-temperature die casting, D2 for ultra-high wear cold molding
- Slide mechanism simulation and mold flow consultation
- Fast prototype sampling and mass production batch delivery
Key Features & Advantages
- Anti-Corrosion Stability: S136 base prevents rust contamination for medical and transparent plastic products.
- Low-Wear Sliding System: Brass self-lubricating bushings + replaceable wear inserts lower long-term maintenance costs.
- Interchangeable Modularity: Individual slide inserts and bushings can be swapped separately without full module disassembly.
- High Surface Quality Capability: Mirror polish option delivers defect-free glossy finishes for premium molded parts.
Technical Specifications
| Parameter | Specification |
|---|---|
| Main Base Material | S136 Stainless Mold Steel |
| Auxiliary Materials | H62 Brass (Guide Bushings), Wear-Resistant Alloy (Slide Plates) |
| Heat Treated Hardness | HRC 48–52 (S136 Base) |
| Critical Fitting Tolerance | ±0.001mm |
| Guide Post Coaxiality & Slide Parallelism | ≤0.002mm |
| Surface Roughness | Ra ≤0.05μm (Ground), Ra ≤0.002μm (Mirror Polish) |
| Core Manufacturing Processes | 5-Axis CNC Milling, Jig Grinding, Wire EDM, Heat Treatment, Press Fitting |
| Surface Treatments | Mirror Polishing, Ion Nitriding, TiN Coating |
| Customization | 100% Supported by Drawings & Samples |
Applications
Automotive
Used as side core pull mold assemblies for automotive lamp transparent covers, interior plastic trim and fluid connector housings; S136 resists moisture and plastic additive corrosion while producing smooth, high-gloss exterior plastic surfaces.
Medical
Suitable for disposable medical device molds, transparent infusion tube fittings and surgical instrument plastic casings; stainless steel substrate meets low-contamination, biocompatible hygiene standards for medical-grade molding.
Consumer Electronics
Applied in molds for transparent electronic lens shells, thin-wall battery housings and precision connector plastic components; polished forming surfaces ensure scratch-free, high-clarity finished electronic parts.
Plastic Packaging
Ideal for clear cosmetic container molds, transparent food jar cavities and threaded packaging core pull units; anti-rust property avoids surface blemishes on transparent packaging products.
Automation Molding Lines
Deployed as standardized slide mold modules on automated injection production lines, modular structure enables quick mold changeover and stable long-cycle core pulling performance for uninterrupted mass output.
