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PET Preform Molding Machine

Your Premier PET Preform Molding Machine Manufacturers

Our industrial-grade PET Preform Molding Machines are engineered specifically for high-speed, high-volume production of premium PET preforms used in beverage, food, cosmetics, and pharmaceutical packaging.

PET Injection Molding Machine

PET Injection Molding Machine is a 238-ton injection molding machine built for high-volume PET preform production in the beverage, food, and packaging sectors.

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PET Preform Injection Molding Machine

This PET Preform Injection Molding Machine is designed for stable, continuous production of PET preforms used in beverage and food packaging.

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Product Parameters

Specifications	unit	NTPET318
International size rating	unit
INJECTION UNIT
Screw Diameter	mm	75
Screw L/D Ratio	L/D	24
Theoretical shot volime	cm³	1565
Shot Weight(PET)	g	1878
Shot Weight(PET)	OZ	66.2
CLAMPING UNIT
Clamping Force	KN	3180
Opening Stroke	mm	660
Distance between tie-bars	mm	660x660
Movable platen size	mm	960x960
Max.mold height	mm	680
Min.mold height	mm	250
Ejector Stroke	mm	200
Ejector Force	KN	177
Numbet of ejector pins		12+1
Pump Motor Power	KW	39.4
System pressure	Mpa	16
Oil tank capacity	L	560
Heating capacity	KW	30.7
Machine Size(LxWxH)	m	7.61.52.15
Machine Weight	T	11.3

Technical Advantages

Advanced Plasticizing & Low-AA Design

Equipped with a specialized PET-dedicated screw (with a high L/D ratio of 25:1 or greater), our system ensures uniform melting at lower temperatures.

High-Speed Servo-Hydraulic System

Utilizing top-tier European or Japanese servo valves and pumps, our machines achieve ultra-fast cycle times while reducing energy consumption by 30% to 50% compared to traditional hydraulic systems.

Intelligent Post-Mold Cooling (PMC)

To prevent deformation and minimize cycle times, our integrated multi-station robot take-out system utilizes intensive internal and external preform cooling before ejection, boosting overall output by up to 25%.

Available Cavity Options

Production Scale	Cavity Options	Target Preform Applications	Recommended Machine Tonnage
Small to Medium	8 / 16 / 24 Cavities	5L-20L Water Gallons, Oil Bottles, Custom Cosmetics	150T - 280T
Large-Scale Industrial	32 / 48 / 72 Cavities	CSD (Carbonated Soft Drinks), 330ml-1.5L Water Bottles	320T - 500T
Mass Production	96 / 128 Cavities	Ultra-high-speed commodity water and beverage lines	600T+

Customization Services

Screw & Barrel Customization

Specialized configurations for 100% rPET (Recycled PET) processing, including vacuum venting systems to handle moisture and volatiles.

Specialized Preform Geometries

Tailored injection units for wide-mouth jars (up to 120mm neck diameters) or ultra-thick wall preforms requiring prolonged holding phases.

Turnkey Downstream Integration

Seamless integration with automatic resin dryers/dehumidifiers, mold chillers, visual inspection sorting systems, and box-changing conveyor systems.

OEM/ODM Brand Requirements

Custom PLC interfaces (Siemens, Beckhoff, or Techmation), regional safety compliance certification (CE, UL, CSA), and localized voltage adaptations.

Production Capacity

Cycle Time Baseline: 8.5 to 15 seconds (depending heavily on preform wall thickness and cavity count).

Hourly Output Metrics:

32-Cavity System: ~10,000 to 12,000 preforms/hour

48-Cavity System: ~15,000 to 18,000 preforms/hour

72-Cavity System: ~23,000 to 26,000 preforms/hour

96-Cavity System: ~32,000 to 36,000 preforms/hour

EEAT Note on Factory Verification: Actual cycle times are strictly tied to preform geometry (wall thickness) and your auxiliary setup (mold dehumidifier, chiller efficiency).

FAQ

Q: How does your machine address the issue of high Acetaldehyde (AA) levels in water preforms?

A: AA reduction requires lower shear heating and uniform melting. We achieve this by utilizing a PET-specific screw with a lower compression ratio and a larger L/D ratio, combined with precise PID ceramic heating bands. This setup allows the resin to melt at the lowest possible temperature, keeping AA levels well within international food-grade standards (typically less than 3 ppm for water preforms).

Q: Can your PET preform molding machines process 100% rPET (Recycled PET)?

A: Yes. However, rPET exhibits different viscosity fluctuations and higher moisture sensitivity. For 100% rPET applications, we customize the machine with an upgraded wear-resistant screw/barrel, advanced drying-hopper interfaces, and specific PLC software parameters to handle intrinsic viscosity (IV) drops without compromising preform clarity.

Q: How do you ensure the concentricity and wall-thickness uniformity of the preforms?

A: Wall-thickness variation (eccentricity) leads to bottle bursting during the stretch-blow molding phase. Our machines feature high-rigidity platens with optimized toggle designs or dual-cylinder injection units to ensure absolute parallelism during clamping. Furthermore, we match our machines with hot runner molds featuring individual cavity self-locking systems.

As one of the best pet preform molding machine manufacturers and suppliers in China, we have world-leading production equipment and strong manufacturing capabilities. We warmly welcome you to buy high quality pet preform molding machine for sale here from our factory. Good service and punctual delivery are available.