High-Speed PET Preform Solutions
HwamdaGroup Packaging Specialist

PET Preform
High-Output Solution

Flagship Packaging Platforms: Dedicated engineering for high-transparency, massive-cavity beverage and cosmetic preform production.

PET System Highlights

HIGH-TORQUE PLASTICIZATION

Based on the M8-SII platform, implementing specialized PET chrome screws with optimized 25:1 or 25.8:1 ultra-high L/D ratios. Paired with a special enlarged hydraulic motor with backwashing and self-moistening functions, it guarantees absolute color uniformity and transparency while cutting cycle time.

RIGID CLAMPING MECHANICS

The newly engineered high-strength frame and platen castings prevent deflection under intensive repetition. Engineered for multi-cavity hot-runner preform molds, boasting an extended ejection stroke and immense ejection force cylinders to eliminate extraction bottlenecks completely.

BALANCED LINEAR GUIDES

The high-precision injection unit integrates an integral moving bracket with symmetrical twin cylinders to ensure perfectly balanced nozzle contact stress. Guided by frictionless linear motion rails, it minimizes systemic return resistance for flawless shot weight repeatability.

INTELLIGENT VALVE GATING

Natively equipped with a high-end digital controller supporting complex mold needle valve gating control functions with adjustable multi-channel program delays. Coupled with closed-loop quantitative thin-oil detection lubrication networks to maximize toggle uptime.

Machine Characteristics & Hardware Advantages

Durable In Use

Accumulated decades of experience in design and manufacturing series has advantages such as platen with high strength, high rigidity, impact resistance, uniform stress distribution and less transformation.

Stable Operation

World-class hydraulic components ensure a smooth, reliable system with improved efficiency and reduced heat production. Modularization and semi-closed loop system reduce breakage risk.

Simple And Effective

The injection seat, centering, and nozzle regulating device have undergone significant improvements, enabling users to effortlessly center and adjust the nozzle for optimal performance and precision.

Fast And Flexible

The ejection force and speed may be set in accordance with product requirements, to improve the rate of finished products. High-speed ejection can shorten the idle-running time significantly.

Simplified Control

The latest injection machine controller has an easy-to-use interface, faster response time, and an LCD display with eight-level gray scales, enhancing the precision and efficiency of the injection molding process.

Easy Maintenance

The machine’s modular design of mechanism, oil circuit, and wiring simplifies replacement, making it easier and more efficient to maintain and repair.

Workshop & Detailed Shots

Hydraulic Motor

Hydraulic Motor

Screw and Barrel

Screw and Barrel

Servo Driver

Servo Driver

PLC and Electrical Components

PLC & Components

Oil pump and Servo Motor

Pump & Servo Motor

Clamping Unit

Clamping Unit

Hydraulic Oil Valve

Hydraulic Oil Valve

Mould Adjustment System

Mould Adjuster

LCD Display

LCD Display

HwamdaGroup PET Specialized Models

320T to 500T Standard & M8-SII High-Speed Packaging Matrices

HMD320PET

HMD320PET

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HMD320M8-SII-PET

HMD320M8-SII-PET

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HMD430PET

HMD430PET

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HMD430M8-SII-PET

HMD430M8-SII-PET

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HMD500PET

HMD500PET

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HMD500M8-SII-PET

HMD500M8-SII-PET

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Frequently Asked Questions

The HwamdaGroup high-speed PET preform injection molding machine is fully engineered based on our second-generation M8-SII series design platform. It rigorously adheres to the flagship manufacturing concepts of precision, reliability, stability, and speed, built exclusively for the thermo-mechanical production characteristics of heavy bottle preforms.
For all types of water, carbonated beverage, and edible oil bottles, HwamdaGroup implements a specialized PET screw optimization design featuring an ultra-high L/D ratio of 25:1 or 25.8:1. This heavy-duty chrome-plated screw geometry significantly improves plasticization homogeneity and eliminates bubbles or streaks.
Every HwamdaGroup PET machine is equipped with a special enlarged hydraulic motor as standard. This heavy-duty motor features built-in backwashing and self-moistening functional loops, ensuring exceptional hydraulic stability and a significantly prolonged motor life cycle during uninterrupted long-term melting sequences.
By utilizing proprietary special alloy steel materials and advanced specialized heat treatment craft, the interior flight of the barrel is optimized with a custom material chute at the feed throat. Compared to traditional generic platforms, this engineering improvement increases the overall plasticizing rate by 12% to 15%.
Yes. The combination of our high-torque enrichment motor, the specialized plasticizing screw, and precise proportional backpressure adjustment drastically lowers the shear heat generated during melting. This effectively prevents resin degradation, reducing the AA values to safeguard international beverage packaging codes.
The PET series integrates a newly designed clamping unit with a finite element analysis (FEA) optimized high-strength, high-rigidity frame casting. This robust platen assembly provides uniform stress distribution and minimizes mechanical transformation under repetitive high tonnage clamping tasks.
Multi-cavity PET preform molds running on cold chilled water easily suffer from platen sweating, which ruins cosmetic clarity. As an engineered upgrade, HwamdaGroup offers a fully sealed clamping unit metal cover structure working seamlessly with localized mold dehumidifier loops to keep core cavities dry.
Yes, HwamdaGroup supplies an integrated cooling water interface manifold design as a premium optional item. This specialized manifold loop completely organizes the massive external water routing, prevents the common disorder of water pipes, and saves valuable cooling cycle times.
Demolding dozens of sticky PET preforms poses a collision hazard. HwamdaGroup supplies a smart photo sensor check performer drop-out function. The onboard computer controller reserves specialized diagnostic logic: if any single preform fails to clear the platen space, the system locks clamping cycles instantly.
For customized preform lines, HwamdaGroup offers a factory-installed optional color mixing feeding point and heavy-duty electrical plugs to manage masterbatch distribution. Furthermore, clients can select specialized infrared heating bands on the barrel, which deliver energy-efficient precise thermal output.
The hydraulic unit adopts a high-response synchronous permanent magnet servo system. For buyers seeking elite performance, HwamdaGroup offers an optional enlarged pump and servo motor power upgrade. This robust heavy power grid increases raw production speed by up to 20% compared with standard generic machinery.
The ‘Charge and Ejection on Fly’ functional block is a premium option that allows the machine to execute electric plasticizing/melting simultaneously while the mold is opening or during mechanical ejection. Supported by a double hydraulic synchronization network, it sharply compresses dry-cycle dead-time.
PET preforms shrink heavily around tool cores after fast chilling. To counteract this extraction resistance, HwamdaGroup equips the platen with an extra-large ejection stroke and specialized big ejector force cylinders distributed evenly behind the moving platen to guarantee balanced linear extraction.
The injection architecture implements a twin cylinder horizontal balanced injection translation network, which evenly balances nozzle seating forces. Supported by low-friction linear motion guide rails, this drops systemic oil return resistance and guarantees micrometer-level weight consistency.
Every unit is managed by an industrial-grade computer control system with a high-definition color LCD screen. The software natively integrates a dedicated mould needle valve control program, allowing plant managers to easily configure independent opening and closing delay times for complex 48 or 72-cavity tools.

Scale Your Output?

Consult with our specialized packaging division to optimize your multi-cavity bottle lines. HwamdaGroup provides robust turnkey systems from thermal material drying to high-speed automated demolding.

25:1 / 25.8:1

Screw L/D Ratio

72-Cavity

Max Tool Capability