S136 Precision Mold Cavity Base Assembly
- Material: S136 Stainless Mold Steel
- Hardness: HRC 48–52 after quenching & tempering
- Tolerance: ±0.001 mm for fitting surfaces
- Surface Finish: Fine Ground
High-Precision Engineering
Modular split-slide structure delivers synchronized lateral clamping and central core forming. Base plate mounting holes, slide dovetail grooves and locating posts are machined in unified datum for perfect assembly interchangeability. The matched sliding clearance minimizes plastic flash and guarantees consistent part dimensional repeatability across mass production.
This integrated cavity design simplifies mold frame assembly and shortens trial run adjustment periods for custom plastic parts.
Anti-Corrosion S136 Stainless Steel Construction
Constructed from premium S136 martensitic stainless mold steel, this assembly delivers critical performance advantages:
- Excellent rust and acid resistance for molding PVC, PET and humid production environments
- Ultra-high polishability for transparent, glossy cosmetic and medical plastic surfaces
- Balanced hardness and toughness to resist chipping during repeated slide reciprocation
- Stable dimensional precision under fluctuating mold temperature cycles Perfect for applications requiring corrosion resistance and high surface finish quality.
Modular Customizable Structure
Fully configurable assembly components to match product molding needs:
- Custom slide travel distance, core pin diameter and forming cavity profile
- Adjustable base plate dimensions, mounting hole layout and dovetail slide sizes
- Optional polished forming surfaces or nitrided wear-resistant sliding faces
- Single-cavity and multi-cavity layout customization available
Custom Engineering Support
- Full customization from customer CAD drawings or physical sample parts
- Surface upgrade options: Mirror polishing, ion nitriding, hard coating
- Alternative material switching: SKD61 for high-temperature casting, D2 for high-wear cold molding
- Slide mechanism stress analysis and mold flow consultation
- Rapid prototype mold unit sampling and mass production batch delivery
Key Features & Advantages
- Anti-Corrosion Stability: S136 stainless steel prevents rust spots even with corrosive plastic raw materials.
- Smooth Slide Operation: Lapped mating surfaces deliver low-friction, jam-free clamping movement.
- Interchangeable Modularity: Precision tolerances allow individual slide/core replacement without full mold disassembly.
- Premium Surface Quality: High polish capability produces burr-free, transparent-grade molded part finishes.
Technical Specifications
| Parameter | Specification |
|---|---|
| Primary Material | S136 Stainless Mold Steel |
| Alternative Materials | SKD61, D2, P20 |
| Heat Treated Hardness | HRC 48–52 |
| Fitting Surface Tolerance | ±0.001mm |
| Slide Flatness & Parallelism | ≤0.002mm |
| Surface Roughness | Ra ≤0.05μm (Ground), Ra ≤0.002μm (Mirror Polish) |
| Manufacturing Processes | 5-Axis CNC Milling, Jig Grinding, Wire EDM, Hardening & Tempering |
| Surface Treatments | Mirror Polishing, Ion Nitriding, TiN Coating |
| Customization | 100% Supported via Drawings & Samples |
Applications
Automotive
Used in injection mold cavity assemblies for automotive transparent lamp covers, interior trim plastic parts and fluid connector housings; S136 resists corrosion from moisture and plastic additives while delivering glossy surface finishes.
Medical
Suitable for medical disposable device molds, transparent fluid tube fittings and surgical instrument plastic casings; stainless steel material meets low-contamination, corrosion-resistant hygiene standards for medical-grade molding.
Consumer Electronics
Applied in molds for transparent electronic lens covers, thin-wall battery housings and precision connector plastic shells; polished forming surfaces achieve scratch-free high-gloss electronic part appearances.
Plastic Packaging
Ideal for transparent cosmetic jar molds, clear food container cavities and threaded packaging component slide mold units; anti-rust property prevents surface defects on transparent packaging products.
Automation Fixture
Deployed as precision clamping mold assemblies on automated injection molding production lines, modular slide design enables fast mold changeover and consistent long-cycle automated forming performance.