• By Admin
  • 2026/2/24

ZSM Machinery: Your Complete Partner for Caps, Preforms, and Blow Molding Solutions

ZSM Machinery is a professional manufacturer specializing in the research, development, and production of high-quality plastic packaging solutions. With years of industry experience and technical expertise, we provide comprehensive manufacturing equipment for bottle caps, PET preforms, and stretch blow molding machines. Our integrated approach ensures that clients receive perfectly matched machinery for their entire production line—from cap molding to preform injection and final bottle blowing.

High-Capacity 72-Cavity PET Preform Injection Molding Machine


In today's competitive packaging market, productivity directly impacts profitability. ZSM Machinery proudly introduces our High-Capacity 72-Cavity PET Preform Injection Molding Machine—engineered for manufacturers who demand maximum output without compromising on quality or energy efficiency. This advanced system represents the perfect balance between high cavitation numbers and precision engineering, delivering exceptional performance for medium to large-scale preform production operations.

Unmatched Productivity and Output

Our 72-cavity preform machine is designed to dramatically increase your production capacity while maintaining consistent part quality. With the ability to produce up to 23,000 to 31,000 preforms per hour (depending on preform weight and specifications), this machine significantly reduces per-unit costs and maximizes return on investment .

Typical cycle times range from 9 to 15 seconds for standard preform weights, allowing you to achieve daily outputs exceeding 345,000 preforms in continuous operation . This level of productivity makes the 72-cavity system ideal for beverage companies, preform converters, and packaging manufacturers serving high-volume markets.

Advanced Cooling Technology for Faster Cycles

At the heart of our machine's high-speed performance lies an innovative cooling and handling system. Unlike conventional systems that only cool the preform's outer surface, our technology features:

  • Internal preform cooling that effectively reduces the inner surface temperature without relying heavily on compressed air 

  • Three-stage post-mold cooling with multi-position take-out plates that remain active for up to 85% of the overall cycle 

  • Up to 216 cooling positions per cycle, ensuring preforms achieve dimensional stability before discharge 

This intelligent cooling approach dramatically reduces in-mold cooling time requirements, enabling shorter cycle times while maintaining excellent preform quality and preventing deformation during handling.

Precision Engineering for Consistent Quality

ZSM Machinery's 72-cavity preform system incorporates precision components that ensure shot-to-shot repeatability and minimal weight variation:

  • High-performance plasticizing unit with specially designed PET screws featuring optimized L/D ratios (typically 25:1) for superior melt quality and homogeneity 

  • Advanced valve gate hot runner systems with individual temperature control for each nozzle, ensuring balanced filling across all cavities and eliminating common defects such as bottom whitening or drawdown 

  • High-precision molds manufactured from premium materials such as German 2316 or Swedish special steel, guaranteeing over 2 million shots without maintenance and wall thickness variations within 0.10mm 

  • Weight difference between cavities maintained below 0.3 grams, ensuring consistent preform quality for downstream blow molding processes 

Energy Efficiency and Sustainability

In alignment with global sustainability trends, our 72-cavity preform machine incorporates features that reduce energy consumption and support recycled material processing:

  • Two-stage plasticizing units and accumulators that optimize energy usage during injection cycles 

  • High-efficiency servo motors and pumps that consume power only when required

  • Compatibility with recycled PET (rPET) materials, supporting up to 100% rPET content in grain form with appropriate auxiliary equipment 

  • Reduced specific energy consumption compared to lower cavitation machines, as energy costs are distributed across more preforms per cycle

Comprehensive Production Line Integration

As a complete solutions provider, ZSM Machinery ensures that our 72-cavity preform machine integrates seamlessly with your entire production line:

  • Side-entry servo robots with multi-station cooling jigs for efficient preform extraction and handling 

  • Compatible with downstream blow molding equipment for bottle production

  • Integration with cap molding machines for complete closure solutions

  • Auxiliary equipment coordination including dryers, loaders, chillers, and compressed air systems

Robust Construction for 24/7 Operation

Built for industrial-scale continuous production, our machines feature:

  • Heavy-duty clamping units with clamping forces ranging from 380 to 500 tons, ensuring consistent mold closure under high-speed operation 

  • Generous tie-bar spacing accommodating large 72-cavity molds (typically up to 1200 x 900mm) 

  • Linear bearing support systems that reduce mold wear and maintain platen alignment 

  • Durable construction with high-quality global components ensuring long-term reliability

Applications Across Industries

Our 72-cavity preform injection molding machine produces preforms suitable for:

  • Beverage bottles: Water, carbonated soft drinks, juices, and sports drinks

  • Food containers: Edible oils, sauces, and dairy products

  • Household and industrial chemicals: Detergents, cleaning agents, and lubricants

  • Pharmaceutical and cosmetic packaging: High-precision containers with strict quality requirements

Why Choose ZSM Machinery?

  • Comprehensive product range: Caps, preforms, and blow molding machines from a single source

  • Technical expertise: Years of experience serving global clients

  • Customization capabilities: Tailored solutions for specific preform designs and production requirements

  • Turnkey project support: Complete factory layout, installation, and training services

  • Global service network: Engineers available for overseas installation and support

Experience the ZSM Advantage

ZSM Machinery's 72-cavity high-capacity preform injection molding machine represents the ideal solution for manufacturers seeking to maximize productivity while maintaining the highest quality standards. By combining advanced cooling technology, precision engineering, and energy-efficient operation, we help our customers achieve superior competitiveness in the global packaging market.

Contact ZSM Machinery today to discuss your preform production requirements and discover how our integrated solutions can transform your manufacturing operations.