APEX Machinery is a leading manufacturer and supplier of high-performance injection molding solutions for the global packaging industry. Specializing in both bottle cap production equipment and PET preform injection molding systems, we provide comprehensive, integrated solutions for manufacturers worldwide. With years of technical expertise and a strong commitment to research and development, we offer state-of-the-art machinery that enables customers to produce high-quality plastic packaging components efficiently and cost-effectively. Our comprehensive product range serves the beverage, food, pharmaceutical, and personal care sectors with equipment designed for optimal performance, precision engineering, and long-term reliability.

Fully Automatic 8-Cavity Flip-Top Cap Injection Molding Machine: Compact Efficiency for Hinge Closure Production

APEX Machinery proudly presents our Fully Automatic 8-Cavity Flip-Top Cap Injection Molding Machine—a precision-engineered system designed specifically for the efficient production of flip-top caps. Flip-top caps, also known as hinged caps, are essential components in modern packaging, offering consumers convenient one-handed operation while ensuring product freshness and controlled dispensing. These caps are widely used in cosmetics, personal care products, pharmaceuticals, and food packaging . Our 8-cavity machine delivers the perfect balance of productivity, precision, and affordability for manufacturers seeking reliable flip-top cap production capability.

Understanding Flip-Top Caps and Their Applications

Flip-top caps feature a hinged design that allows the cap to open and close repeatedly without separating from the container. The hinge mechanism must function reliably through hundreds of openings over the product's lifetime, making precision manufacturing essential .

Key Applications Across Industries :

• Cosmetics and Personal Care: Lotion bottles, shampoo containers, conditioners, and beauty product packaging where user convenience and aesthetic appeal are paramount

• Pharmaceuticals: Child-resistant and senior-friendly closures for liquid medications, requiring precise sealing and regulatory compliance

• Food and Beverage: Sauces, condiments, and drink containers needing resealable, leak-proof solutions

• Household Products: Cleaning agents and detergents where controlled dispensing improves user experience

Key Features of Our Fully Automatic 8-Cavity Flip-Top Cap Machine

1. Compact 8-Cavity Configuration

Our 8-cavity flip-top cap machine is ideally suited for:

• Small to medium-scale production operations

• Manufacturers entering the flip-top cap market

• Specialty cap production requiring frequent changeovers

• Companies with limited floor space seeking efficient equipment

• Production of larger flip-top caps where cavity count is limited by part size

The 8-cavity design offers an excellent balance of productivity and flexibility, producing approximately 5,000-15,000 caps per hour depending on cap size and design complexity .

2. Precision Hot Runner System

Our 8-cavity machine features an advanced hot runner system specifically designed for flip-top cap molding:

• Individual temperature control for each nozzle, maintaining accuracy within ±1°C

• Balanced filling across all 8 cavities ensuring consistent cap weight and hinge functionality

• Valve gate technology providing clean gate vestige on non-visible areas of the cap

• Optimized material flow preventing defects in thin hinge sections 

3. Specialized Design for Hinge Mechanisms

The flip-top hinge is the most critical feature requiring precision molding. Our machine incorporates:

• Precision cavity and core machining ensuring proper hinge geometry and snap-fit functionality

• Optimized injection parameters for complete filling of thin hinge sections

• Consistent material distribution preventing weak points in the hinge area

• Enhanced cooling in hinge regions to ensure dimensional stability 

4. Advanced Ejection System

Proper ejection is essential for flip-top caps to prevent damage to delicate hinge mechanisms:

• Gentle ejection pins precisely positioned to avoid hinge contact

• Synchronized ejection timing ensuring caps release cleanly without deformation

• Optional robot handling for automated part removal and post-mold cooling

5. High-Performance Plasticizing Unit

Our machines feature plasticizing units optimized for cap materials:

• HDPE and PP processing capability with specially designed screw geometries

• Superior melt quality ensuring consistent material properties throughout the shot

• Precise temperature control preventing material degradation

• Fast color change capability for manufacturers requiring production flexibility

6. Robust Clamping System

The clamping unit provides stable, reliable mold closure throughout the injection cycle:

• Clamping forces from 80 to 200 tons depending on configuration

• Generous tie-bar spacing accommodating 8-cavity flip-top cap molds

• Precision guidance systems ensuring consistent platen alignment

• High-speed operation without compromising stability

Technical Specifications

Our fully automatic 8-cavity flip-top cap injection molding machine is available in various configurations to match your specific requirements:

Material Compatibility

Our 8-cavity flip-top cap machine is compatible with all materials commonly used in cap production:

• HDPE (High-Density Polyethylene): Most common material for flip-top caps

• PP (Polypropylene): Offers different flexibility and chemical resistance properties

• LDPE (Low-Density Polyethylene): For softer, more flexible hinge applications

• TPE (Thermoplastic Elastomer): For multi-component caps with soft-touch features 

Energy Efficiency Options

We offer various drive system configurations to match your energy efficiency goals:

• Hydraulic systems: Reliable, cost-effective for standard applications

• Servo-hydraulic systems: Energy savings of 30-50% compared to conventional hydraulics

• All-electric systems: Maximum energy efficiency with savings up to 50-70%

Quality Control Integration

Our 8-cavity flip-top cap machines can be equipped with comprehensive quality monitoring:

• Inline vision inspection systems performing multiple quality checks on each cap

• Weight monitoring ensuring consistent material usage across all cavities

• Hinge functionality testing verifying proper opening and closing action

• Real-time rejection of defective parts guaranteeing quality output

Mold Manufacturing Excellence

APEX Machinery manufactures all flip-top cap molds in-house, ensuring the highest quality and complete control over the production process:

• Precision mold design with engineering expertise ensuring optimal part quality

• High-quality steel materials including S136, H13, and P20 for extended mold life 

• Advanced machining centers producing molds with micron-level accuracy

• Hot runner systems from leading global suppliers

• Comprehensive mold testing before shipment

Applications for 8-Cavity Flip-Top Cap Production

Our 8-cavity machine is ideal for producing flip-top caps for:

Cosmetics and Personal Care 

• Lotion pumps and dispensers

• Shampoo and conditioner bottles

• Cosmetic cream jars

• Body wash containers

Pharmaceuticals 

• Liquid medication bottles

• Eye drop containers

• Syrup bottles with child-resistant options

Food and Beverage 

• Sauce and condiment bottles

• Drink containers

• Oil and vinegar dispensers

Household Products 

• Cleaning solution bottles

• Detergent containers

• Air freshener packaging

Why Choose APEX Machinery for 8-Cavity Flip-Top Cap Production?

• Specialized expertise: Deep understanding of flip-top cap design and hinge mechanism requirements

• Compact efficiency: 8-cavity configuration ideal for small to medium production needs

• Precision engineering: High-quality components ensuring consistent cap quality

• Material versatility: Optimized processing for HDPE, PP, and other cap materials

• Energy-efficient options: Multiple drive system choices to match your priorities

• Comprehensive support: Installation, training, and after-sales service from experienced engineers

• Customizable solutions: Tailored configurations for specific cap designs and production requirements

• Mold manufacturing excellence: In-house mold production ensuring perfect integration

Partner with APEX for Flip-Top Cap Production

APEX Machinery's Fully Automatic 8-Cavity Flip-Top Cap Injection Molding Machine represents the ideal solution for manufacturers seeking efficient, reliable production of hinged closures. By combining precision engineering, compact design, and comprehensive quality control, we help our customers achieve consistent quality and optimal productivity in flip-top cap manufacturing.

Whether you're establishing a new cap production facility, adding flip-top cap capability to your product line, or seeking efficient equipment for medium-volume production, APEX Machinery has the expertise and technology to support your success.

Contact APEX Machinery today to discuss your 8-cavity flip-top cap machine requirements and discover how our solutions can enhance your manufacturing operations.