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.

High-Efficiency Narrow Neck PET Preform Injection Molding Machine: Precision-Engineered for Small Diameter Applications

APEX Machinery proudly presents our High-Efficiency Narrow Neck PET Preform Injection Molding Machine—a specialized injection molding system designed specifically for the efficient production of preforms with small diameter neck finishes. Narrow neck preforms are essential components for producing bottles and containers with small openings, including single-serve beverages, pharmaceutical vials, cosmetic samples, and specialty packaging where precise dispensing or controlled pouring is required. Our advanced system combines precision engineering with high-speed production capabilities to deliver exceptional quality and productivity for these demanding applications.

Understanding Narrow Neck Preform Applications

Narrow neck preforms feature small diameter neck finishes, typically ranging from 15mm to 25mm, and are used to produce containers for a wide variety of applications:

• Pharmaceutical vials: Small bottles for liquid medications, eye drops, and nasal sprays requiring precise dosing

• Cosmetic samples: Miniature containers for perfumes, serums, and beauty product testers

• Single-serve beverages: Small water bottles, juice shots, and energy drink containers

• Specialty food products: Condiment bottles, flavored oils, and sample-sized packaging

• Laboratory containers: Small bottles for reagents, samples, and testing materials

The ability to produce high-quality narrow neck preforms efficiently is essential for manufacturers serving these growing markets.

Key Features of Our High-Efficiency Narrow Neck Preform Machine

1. Specialized Screw Design for Small Shot Weights

Our narrow neck preform machines feature plasticizing units optimized for the smaller shot weights typical of these applications. The specially designed PET screws ensure superior melt quality and homogeneity even at reduced throughput rates, maintaining consistent material preparation essential for precision small-diameter preforms.

2. High-Precision Hot Runner Systems

The small geometries of narrow neck preforms demand exceptional precision in melt delivery. Our machines incorporate advanced hot runner systems with:

• Individually controlled valve gates for each cavity

• Micro-precision nozzle tips designed for small-diameter applications

• Balanced filling across all cavities ensuring consistent preform quality

• Clean gate vestige for optimal preform appearance

3. Enhanced Cooling Technology

Proper cooling is critical for narrow neck preforms, particularly in the small-diameter neck region where material thickness can be concentrated. Our machines feature:

• Optimized cooling circuit design with enhanced neck cooling capabilities

• Rapid, uniform heat extraction across all preform sections

• Temperature control accuracy ensuring dimensional stability of small threads

• Post-mold cooling options for extended cooling requirements

4. High-Speed Multi-Cavity Configurations

Our narrow neck preform machines are available in various high-cavity configurations to maximize productivity:

The small size of narrow neck preforms allows for higher cavitation compared to standard preforms, enabling exceptional productivity in compact machine footprints.

5. Precision Ejection Systems

Small preforms require careful handling during ejection to prevent damage to delicate neck finishes. Our machines feature precision ejection mechanisms designed specifically for small-diameter applications, ensuring reliable part removal without deformation or surface damage.

Preform Specifications

Our high-efficiency narrow neck preform machines accommodate a wide range of small-diameter preform designs:

• Neck finishes: 15mm, 17mm, 18mm, 20mm, 22mm, 25mm, and custom small-diameter specifications

• Preform lengths: From 30mm to 150mm depending on configuration

• Preform weights: From 3g to 25g for container volumes from 5ml to 500ml

• Material compatibility: Virgin PET, rPET up to 100%, and specialty resins for pharmaceutical and cosmetic applications

Advanced Energy Efficiency

Our narrow neck preform machines incorporate the latest energy-saving technologies:

• Servo-driven hydraulic systems with accumulators optimizing energy usage during injection cycles

• Kinetic energy recovery systems (KERS) capturing and reusing energy during deceleration phases

• Reduced specific energy consumption as energy costs are distributed across more preforms per cycle

• Low energy consumption rates among the most efficient in the industry 

Integrated Quality Control

Quality assurance is critical for narrow neck preforms, particularly in pharmaceutical and cosmetic applications where precision is essential. Our machines can be equipped with comprehensive quality monitoring:

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

• High-speed camera systems capable of inspecting up to 96 cavities in five minutes or less 

• AI-powered defect detection identifying common defects and subtle quality issues that might escape traditional inspection 

• Real-time rejection of defective parts ensuring only quality preforms proceed to downstream operations

Applications Across Industries

Our high-efficiency narrow neck preform machines serve diverse industries with specialized requirements:

Pharmaceutical and Healthcare

• Precision vials for liquid medications

• Eye drop and nasal spray containers

• Sample bottles for clinical trials

• Child-resistant packaging for sensitive medications

Cosmetics and Personal Care

• Perfume sample vials and testers

• Miniature cosmetic containers

• Serum and essence bottles

• Travel-sized personal care products

Beverage Industry

• Single-serve water bottles (200ml-500ml)

• Juice shots and energy drink containers

• Spirit samplers and miniatures

• Flavored water and functional beverage bottles

Specialty Food Packaging

• Condiment bottles for sauces and dressings

• Flavored oil and vinegar containers

• Sample-sized food packaging

• Gourmet product containers

Advanced Thin-Wall Capability

Our narrow neck preform machines are engineered to produce preforms with optimized wall thickness distributions, enabling lightweight container production without compromising performance. Advanced injection molding techniques allow for the creation of thin-walled geometries that improve heating efficiency during subsequent blow molding operations .

Compatibility with High-Speed Production Environments

Designed for integration into modern high-speed manufacturing operations, our machines feature:

• Industry 4.0-ready control systems with remote monitoring and diagnostic capabilities

• Quick changeover features minimizing downtime between production runs

• Compatibility with automated handling systems for seamless integration with downstream equipment

• Real-time production monitoring for continuous process optimization

Why Choose APEX Machinery for Narrow Neck Preform Production?

• Specialized expertise: Deep understanding of small-diameter preform requirements and challenges

• High-efficiency design: Optimized for the unique demands of narrow neck applications

• Proven performance: Machines engineered for reliable production with outputs up to 55,000 preforms per hour

• Precision engineering: High-quality components ensuring consistent quality for demanding pharmaceutical and cosmetic applications

• Energy-efficient operation: Advanced drive systems minimizing operating costs

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

• Customizable configurations: Tailored solutions for specific neck finishes, preform weights, and production requirements

• Integration capability: Seamless compatibility with cap manufacturing equipment and downstream blow molding systems

Partner with APEX for High-Efficiency Narrow Neck Preform Production

APEX Machinery's High-Efficiency Narrow Neck PET Preform Injection Molding Machine represents the ideal solution for manufacturers seeking precision, productivity, and reliability in small-diameter preform production. By combining specialized design features, advanced energy efficiency, and comprehensive quality control, we help our customers achieve superior competitiveness in pharmaceutical, cosmetic, and specialty beverage markets.

Whether you're establishing a new production facility for pharmaceutical vials, expanding cosmetic packaging capacity, or seeking efficient solutions for single-serve beverage preforms, APEX Machinery has the expertise and technology to support your success.

Contact APEX Machinery today to discuss your narrow neck preform machine requirements and discover how our high-efficiency solutions can enhance your manufacturing operations.