4+4 Cavity PP Material 1.2083ESR HRC48-52 Steel Mold Polished Texture Customized Plastic Disc Top Flip Cap Mold

4+4 Cavity PP Material 1.2083ESR HRC48-52 Steel Mold Polished Texture Customized Plastic Disc Top Flip Cap Mold

This is a high-efficiency 4+4 cavity disc top flip cap injection mold, custom-built for mass production of one-piece plastic flip-top caps for personal care, cosmetics, and household packaging. Manufactured from premium 1.2083ESR pre-hardened steel (HRC48-52), with polished texture finish and optimized for food/cosmetic-grade PP resin, this mold delivers consistent dimensional accuracy, smooth hinge functionality, and long-term production stability. It is designed to produce matching top and base cap components in a single cycle, ideal for high-volume consumer packaging manufacturing.

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Model:
24068
Brand:
YIXUN mold
Code:
8480419090

Product Description

This is a high-efficiency 4+4 cavity disc top flip cap injection mold, custom-built for mass production of one-piece plastic flip-top caps for personal care, cosmetics, and household packaging. Manufactured from premium 1.2083ESR pre-hardened steel (HRC48-52), with polished texture finish and optimized for food/cosmetic-grade PP resin, this mold delivers consistent dimensional accuracy, smooth hinge functionality, and long-term production stability. It is designed to produce matching top and base cap components in a single cycle, ideal for high-volume consumer packaging manufacturing.

Core Mold Specifications

Parameter	Specification
Product Name	4+4 Cavity PP Disc Top Flip Cap Injection Mold
Cavity Configuration	4+4 Cavity (4 top + 4 base parts per cycle)
Molding Material	Food/Cosmetic-Grade PP (Polypropylene)
Core & Cavity Steel	1.2083ESR High-Purity Mold Steel
Steel Hardness	HRC 48-52 (Pre-Hardened & Tempered)
Surface Finish	Polished Texture (Gloss or Semi-Gloss Options)
Gate System	Customizable (Pin-Point / Submarine Gate)
Thread Specification	Standard Neck Sizes (20/410, 24/410, 28/410; Customizable)
Key Features	Integrated living hinge, leak-proof fit, polished surface finish, low maintenance
Application	Shampoo, lotion, liquid soap, cosmetic and household product packaging

4+4 Cavity Plastic Disc Top Flip Cap Mold

Customized Plastic Disc Top Flip Cap Mold

Key Mold Design & Technical Advantages

1. 4+4 Cavity Balanced Production Structure

The 4+4 cavity configuration produces 4 matching flip cap tops and 4 bases in a single injection cycle, ensuring perfect dimensional alignment between mating components. Symmetric runner and cooling layouts eliminate filling imbalance, delivering identical cap dimensions, thread fit, and hinge performance across all 8 parts. This design optimizes production efficiency while reducing per-unit manufacturing costs.

2. 1.2083ESR Steel Construction (HRC48-52)

Ultra-High Purity & Consistency: 1.2083ESR steel undergoes Electro-Slag Remelting (ESR) for enhanced purity, minimizing inclusions and ensuring uniform grain structure. This eliminates surface defects and ensures consistent texture reproduction.
Exceptional Wear & Corrosion Resistance: Heat-treated to HRC48-52, the steel offers superior hardness and wear resistance, maintaining polished cavity finishes and thread precision over millions of molding cycles.
Long Service Life: The steel’s excellent thermal stability and fatigue resistance prevent deformation or cracking under continuous high-pressure injection, extending mold lifespan and reducing maintenance needs.

3. Polished Texture Surface Finish

The mold cavity is precision-polished to deliver a smooth, defect-free surface on the finished PP cap. Key benefits include:

Premium Appearance: Glossy or semi-gloss finishes enhance the consumer appeal of cosmetic and personal care packaging, free of flow lines, scratches, or blemishes.
Easy Demolding: Polished surfaces ensure clean ejection without damaging delicate hinge structures or fine details, reducing the risk of part defects.
Texture Consistency: The uniform polished finish maintains consistent quality across all molded caps, supporting brand standardization.

4. Optimized Living Hinge & Thread Design

The mold is engineered to produce the one-piece living hinge and precision threads in a single shot:

Living Hinge Durability: Controlled melt flow and balanced cooling ensure the PP hinge maintains flexibility for repeated opening/closing cycles without cracking or fatigue.
Leak-Proof Thread Fit: Precision-molded threads ensure a tight, secure seal with matching bottle necks, preventing leakage during transport and use.

Mold Performance Comparison

Feature	Our 4+4 1.2083ESR Flip Cap Mold	Standard Generic Cap Mold
Cavity Configuration	4+4 paired top/base production	Single or low-cavity unpaired design
Steel Grade	1.2083ESR high-purity, wear-resistant	Generic P20/45# steel, prone to wear
Hardness	HRC48-52, long service life	HRC28-35, prone to deformation
Surface Finish	Precision polished texture, consistent gloss	Basic finish, inconsistent surface quality
Hinge & Thread Quality	Durable hinge, leak-proof thread fit	Prone to hinge cracking and loose fit
Service Life	1,000,000+ shots with stable quality	Short lifespan, frequent maintenance required

Applications & Benefits

This mold is purpose-built for manufacturing disc top flip caps for a wide range of consumer packaging applications:

Personal Care: Shampoos, conditioners, body wash, and lotions
Cosmetics: Liquid foundations, skincare serums, and hair care products
Household: Liquid soaps, cleaning solutions, and hand sanitizers
Pharmaceutical: Over-the-counter liquid medications and supplements

Key benefits include:

Cost Efficiency: High-volume 4+4 cavity design reduces per-unit costs for mass production
Consumer Convenience: Easy one-handed opening/closing with leak-proof closure
Brand Consistency: Polished finishes and precise dimensions support uniform packaging standards
Long-Term Reliability: 1.2083ESR steel construction ensures stable performance over millions of cycles

Quality & Compliance

All molds are manufactured under strict quality control standards, with CNC precision machining, heat treatment validation, and full mold trial testing. We provide complete documentation, including steel material certificates, ESR purity reports, mold validation records, and trial sample data, ensuring the mold meets your production and quality requirements for consumer packaging applications.

FAQ

Q1: What are the benefits of using 1.2083ESR steel for flip cap molds?

A1: 1.2083ESR steel offers ultra-high purity, exceptional wear resistance, and excellent polishability. It maintains consistent surface quality and thread precision over long production runs, making it ideal for high-volume flip cap manufacturing.

Q2: What does the 4+4 cavity configuration mean?

A2: The 4+4 design produces 4 cap tops and 4 bases in one injection cycle, ensuring perfect dimensional alignment between mating parts and streamlining assembly-ready production.

Q3: Can the mold be customized for different cap sizes?

A3: Yes, we can modify the mold to accommodate standard or custom neck sizes (e.g., 20/410, 24/410, 28/410) and cap designs based on your product specifications.

Q4: What is the expected service life of this mold?

A4: With proper maintenance, the 1.2083ESR steel mold supports 1,000,000+ shots of PP flip caps, maintaining consistent quality throughout its lifespan.

Customized Plastic Disc Top Flip Cap Mold 4+4 Cavity PP Material plastic mold 1.2083ESR HRC48-52 Steel Mold Polished Texture 1.2083ESR HRC48-52 Steel Mold 4+4 Cavity Plastic Disc Top Flip Cap Mold