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Useful Switch Button Plastic Injection Mold And Parts

This high-durability injection mold is engineered exclusively for manufacturing spice caps—including flip-top sifters, screw-on seals, and dual-function dispensers—used in food packaging for herbs, spices, and seasonings. Built with wear-resistant steel and precision machining, it delivers consistent, long-lasting performance for high-volume production, while meeting strict food safety standards (FDA/LFGB). Ideal for packaging manufacturers seeking reliable tooling that withstands repeated cycles and maintains product integrity.
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  • YIXUN mold

  • 8480419090

Product Overview

This high-durability injection mold is engineered exclusively for manufacturing spice caps—including flip-top sifters, screw-on seals, and dual-function dispensers—used in food packaging for herbs, spices, and seasonings. Built with wear-resistant steel and precision machining, it delivers consistent, long-lasting performance for high-volume production, while meeting strict food safety standards (FDA/LFGB). Ideal for packaging manufacturers seeking reliable tooling that withstands repeated cycles and maintains product integrity.

Core Advantages: Durability & Performance

1. Superior Materials for Maximum Longevity

  • Mold Base: 4Cr13 Stainless Steel – Corrosion-resistant and rigid, ensuring structural stability over 1,000,000 injection cycles .

  • Cavity/Core: ASSAB S136 Premium Steel – Heat-treated to HRC 52-55, offering exceptional wear resistance against food-grade plastics (e.g., PP, HDPE) and preventing surface degradation .

  • Critical Components: Carbide inserts in high-wear areas (e.g., thread sections, sprinkler hole edges) – Reduces abrasion from repeated plastic flow, extending mold life by 30% compared to standard molds.

2. Precision Design for Spice Cap Functionality

Spice Cap Type
Mold Design Features
Flip-Top Sifters (3/7/19 holes)
Precision-machined hole patterns (diameter tolerance ±0.02mm) for uniform dispensing ; hinged structure grooves for smooth flip action.
Dual-Function Dispensers
Molded teaspoon-sized pour hole + fine sifter grid – Ensures tight seal and easy user control .
Screw-On Seals
Internal thread precision (ISO metric standard) for airtight closure, preventing spice staleness .

Durability-Enhanced Structure

  • Hot Runner System: Reduces material waste and ensures uniform filling of thin-walled cap structures (minimum wall thickness 0.8mm) .

  • Optimized Cooling Channels: Circular and grid-style channels 环绕 the cavity, controlling mold temperature (50-70℃) and reducing cycle time to 18-22 seconds – Minimizes part warpage and mold stress .

  • Ejection System: Soft-eject pins with Teflon coating – Prevents scratches on cap surfaces and reduces friction during repeated cycles.

3. Food-Grade Compliance & Quality Assurance

  • Material Safety: All mold components are non-toxic and compatible with food-grade plastics (PP, HDPE, food-safe TPE) – Meets FDA 21 CFR Part 177 and EU LFGB standards .

  • Surface Finish: Cavity polished to Ra 0.015μm – Ensures smooth, scratch-resistant cap surfaces that avoid spice residue buildup .

  • Strict Testing: 72-hour continuous cycle testing before delivery; 100% inspection of critical dimensions (thread pitch, hole alignment) via CMM (Coordinate Measuring Machine).

Customization & Support

  • Tailored Design: Accept 2D/3D drawings for custom cap shapes (e.g., dome-top, flat-top), hole patterns (3-19 holes), or logo embossing .

  • Material Adaptation: Modify mold for glass fiber-reinforced plastics (e.g., PP+GF) with upgraded wear-resistant inserts .

  • After-Sales Guarantee: 18-month warranty (free repair/replacement for non-human damage); 24/7 technical support for mold debugging and maintenance.

Why Choose This Mold?

  • Unmatched Durability: Premium steel and carbide inserts ensure long service life, reducing tooling replacement costs.

  • Food-Safe Reliability: Compliance with global food packaging standards eliminates safety risks.

  • Versatility: Adapts to most spice cap designs (sifters, flip-tops, dual-function) for diverse seasoning products.

    spice cap mold

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