Engineered for High-Efficiency Production, Maximizing Your Return on Investment
In the increasingly competitive packaging market, efficiency and quality are the keys to victory. Huili Machinery's specialized injection moulding machine for PET preforms and PE/PP caps is an integrated solution engineered to meet your most demanding requirements for high-speed, high-precision, and low-cost production. We understand how every second and every gram impacts your bottom line. Therefore, we have seamlessly integrated cutting-edge servo-driven technology, robust mechanical structures, and intelligent control systems to create a true profit center for your factory.
This is more than just a machine; it is a powerful asset for conquering your market. By significantly shortening cycle times, reducing energy consumption per unit, and ensuring a near-perfect yield rate, this machine directly enhances your productivity and profitability. Whether you are producing high-clarity PET preforms or dimensionally precise PE/PP caps, Huili Machinery delivers performance that exceeds expectations, helping you achieve the optimal balance between quality and cost to gain a decisive competitive edge.
Key Advantages at a Glance
⚡ Extreme Production Speed (Fast Cycle Time)
Feature: Optimized clamping unit and high-response servo system enabling seamless synchronization of movements.
Customer Benefit: Drastically reduces cycle times, boosting output per unit of time by up to 20% and directly lowering your cost per part.
Perfect Product Quality (Precision & Consistency)
Feature: Equipped with a precision hot runner system and closed-loop control for injection pressure and speed.
Customer Benefit: Guarantees highly transparent PET preforms with no air bubbles and consistent PE/PP caps with no flash. Achieve a stable yield rate exceeding 99.5%, eliminating material waste.
Excellent Energy Efficiency (Energy Saving)
Feature: A high-efficiency servo motor drives the hydraulic system, delivering power only when needed, with no energy loss from throttling or overflow.
Customer Benefit: Compared to traditional hydraulic machines, our system delivers comprehensive energy savings of 40%-70%, significantly reducing your factory's electricity expenses.
磐️ Rock-Solid Stability (Durability & Reliability)
Feature: High-rigidity machine frame optimized through Finite Element Method (FEM) analysis, built with world-class core components.
Customer Benefit: Ensures reliable, 24/7 continuous operation with minimal downtime for maintenance, making your production schedule more dependable and robust.
Explore Our Application-Specific Solutions
PET Preform Production Solution
We have meticulously optimized this machine for the unique properties of PET resin (high viscosity, hygroscopic nature, narrow processing window) to ensure every preform is flawless.
Specialized Plasticizing Screw: A purpose-designed screw with a specific L/D ratio and compression ratio ensures thorough and uniform melting. This design minimizes shear heat, reducing the generation of acetaldehyde (AA) and guaranteeing superior preform transparency, strength, and food-grade quality.
Enlarged Ejection System: Delivers powerful, synchronized, and stable ejection force, ensuring smooth demoulding even with high-cavitation moulds (up to 96 cavities), preventing scratches or sticking.
Intelligent Temperature Control: High-precision PID controllers maintain the temperature of the barrel and hot runner system with a variance of ±1°C, preventing material degradation and ensuring optimal intrinsic quality of the preforms.
PE/PP Cap Production Solution
The essence of cap production is "speed" and "precision." Our cap injection moulding machine is designed to produce dimensionally accurate caps, consistently, at the shortest possible cycle times.
High-Speed Injection & Mould Movement: Optimized hydraulic circuits and high-response servo valves allow for extremely fast injection and holding pressure transitions. Mould open/close movements can overlap with ejection, designed to compress non-productive time and perfectly suit short-cycle (2-4 seconds), continuous production.
Platen Parallelism Control: The high-rigidity platen design ensures minimal deformation under high-speed and high-pressure clamping. This is critical for multi-cavity cap moulds, as it guarantees uniform force distribution, prevents flash, and ensures consistent wall thickness and sealing integrity.
Automation-Ready Integration: The control system is equipped with ample I/O ports for seamless integration with downstream automation, such as in-mould labeling (IML), vision inspection systems, and automatic packaging lines, helping you build a fully automated, highly efficient production line.
Technical Specifications
| Parameter | Unit | HLP-160PET | HLP-220PET | HLP-300PET | HLP-380PET |
|---|
| Clamping Force | kN | 1600 | 2200 | 3000 | 3800 |
| Shot Weight (PS) | g | 350 | 520 | 780 | 1150 |
| Screw Diameter | mm | 45 | 50 | 55 | 65 |
| Dist. Between Tie Bars | mm | 480x480 | 550x550 | 620x620 | 720x720 |
| Min. Mould Height | mm | 180 | 220 | 250 | 300 |
| Max. Mould Height | mm | 500 | 580 | 650 | 750 |
| Dry Cycle Time | s | 2.8 | 3.2 | 3.5 | 4.0 |
Technology Deep Dive
High-Efficiency, High-Rigidity Clamping Unit
Our machine features an optimized double-toggle, five-point clamping mechanism. The motion profile is engineered for an ideal "fast-slow-fast" sequence, ensuring smooth yet rapid movement. During lock-up, clamping force is transmitted directly to the mould center, providing exceptional rigidity. Critically, both the fixed and moving platens are optimized with FEM analysis to manage stress distribution, preventing deformation. This not only guarantees product precision but also significantly extends the service life of your valuable moulds.
Precision-Response Injection Unit
Injection accuracy is fundamental to shot-to-shot consistency and product weight stability. This model utilizes a dual-cylinder injection design, which balances the forces on the screw for a smooth, linear path. The entire injection unit is supported by high-precision linear guide rails, minimizing friction and allowing for incredibly stable and responsive starts, accelerations, and stops. Paired with our high-response servo control system, this enables precise, real-time control over injection pressure and velocity, ensuring minimal variation from one shot to the next.
Choose Huili Machinery, Choose a Reliable Partner
Decades of Focused Experience: For decades, Huili Machinery has been dedicated exclusively to the field of injection moulding. This deep industry experience means we are not just an equipment manufacturer; we are an expert solutions partner capable of providing professional processing advice.
Rigorous Quality Control: Our production process strictly adheres to the ISO9001 quality management system. From incoming inspection of raw materials and core components to the final 72-hour continuous operation test for every machine, we enforce stringent quality standards at every stage to ensure the equipment you receive is exceptionally reliable.
Global Service & Support Network: We know that downtime is lost revenue. That's why we have built a service and spare parts network covering major global markets. Wherever you are, our team of professional engineers is ready to provide timely remote diagnostics, on-site technical support, and spare parts to keep your production running.
Customized & Turnkey Solutions: A one-size-fits-all approach doesn't work for unique production challenges. Our engineering team is eager to listen and has the R&D capability to deliver fully customized, turnkey solutions—from the main machine to auxiliaries, moulds, and automation—tailored to your specific product, plant layout, and operational goals.
