Core Highlights of Plastic Preform & Cap Injection Molding Machine
High Precision & Fast Running Performance
This machine is engineered with high precision components to ensure consistent product dimensions for plastic preforms and caps. It operates at fast running speeds to shorten production cycles and boost output efficiency, making it ideal for mass production of plastic packaging accessories with strict size requirements.
Energy Saving & Long Durability
The equipment features energy-saving hydraulic and electrical designs that reduce power consumption during continuous operation, cutting down your production cost per unit. Its robust welded structure and high-quality imported parts guarantee stable performance and long service life, adapting to the high-intensity production needs of industrial plastic processing workshops.
PET-Specific Optimization
It is specially optimized for PET materials, with customized plasticizing and cooling systems to enhance the transparency and surface finish of PET preform products. The PET-specific configuration makes production efficiency 10% higher than that of standard injection molding machines, perfectly matching the production demands of beverage bottle preforms and high-transparency plastic caps.
Product Overview
Huili Machinery's Plastic Preform & Cap Injection Molding Machine provides an integrated and efficient solution for plastic packaging production, covering the molding needs of small-sized plastic caps and large-volume beverage bottle preforms with a clamping force range from 98 ton to 1500 ton. It also offers diversified customized models for PVC, PET, variable pump, clear double color, servo-motor, and high-speed injection scenarios, meeting the personalized production requirements of different customers.
The machine is equipped with a high-performance customized plasticizing system. An enlarged plasticizing motor with enhanced displacement is tailor-made to extend motor service life and ensure stable plastic melting for preform and cap production. The optional synchronous electrical plasticizing function further accelerates the plasticizing speed, shortening the whole production cycle. The clamping unit adopts imported Japanese high tensile steel tie bars, which are specially hardened and chrome-plated with lengthened diameters to minimize wear and maximize structural durability. The robust ductile iron-casted platens are manufactured in-house with high-precision processing, effectively reducing platen deformation during high-pressure clamping.

Technical Specifications
Parameter | Unit | HL-1600 |
Injection Unit - Screw diameter | mm | 42 (A) × 45 (B) × 48 (C) |
Injection Unit - Shot size (theoretical) | Cm³ | 305 (A) × 320 (B) × 382 (C) |
Injection Unit - Shot weight | g | 282 (A) × 316 (B) × 365 (C) |
Injection Unit - Injection pressure | Mpa | 225 (A) × 172 (B) × 158 (C) |
Injection Unit - Injection rate | g/s | 19.5 (A) × 123 (B) × 30 (C) |
Injection Unit - Screw L/D ratio | L/D | 22 (A) × 20 (B) × 18 (C) |
Injection Unit - Screw speed | r.p.m | 0-180 |
Injection Unit - Nozzle Diameter | mm | 10 |
Clamping - Clamp tonnage | KN | 1600 |
Clamping - Toggle stroke | mm | 435 |
Clamping - Mould Thickness | mm | 150-530 |
Clamping - Space between tie-bars | mm | 460×460 |
Clamping - Ejector stroke | mm | 150 |
Clamping - Ejector tonnage | KN | 50 |
Clamping - Ejector number | Piece | 5 |
Clamping - Hole Diameter | mm | 125 |
Others - Heat power | KW | 9.9 |
Others - Max. pump pressure | MPa | 16 |
Others - Pump motor power | KW | 15 |
Others - Valve Size | mm | 16 |
Others - Machine dimension | m | 4.75×1.38×1.96 |
Others - Machine weight | t | 4.5 |
Why Choose Us
Customized System Design
We provide targeted system customization according to different plastic materials and product types. For PET preform and cap production, we specially design the enlarged plasticizing motor and enhanced cooling device, which not only ensure the high quality of PET products but also improve production efficiency by optimizing the core production links.
High-Quality Component Selection
Key structural and functional components such as tie bars, hydraulic valves and motors are made of imported high-quality steel and world-famous brand parts, which guarantees the machine’s long-term durability and stable operation, and effectively reduces the maintenance cost and production downtime in the later stage.
User-Oriented Configuration
The machine is designed with standard robot mounting holes to realize quick connection with automated production equipment, meeting the unmanned and intelligent production needs of modern enterprises. The optional mold needle valve control function effectively reduces product internal stress, improves product qualification rate and production yield, and brings more economic benefits for customers.
After-Sales Service & Warranty
We offer a one-year quality guarantee for all Plastic Preform & Cap Injection Molding Machine units, covering all core components against manufacturing defects. During the warranty period, we provide free replacement of faulty core parts and free technical maintenance support. Our professional technical team provides 24/7 online guidance for machine installation and debugging, helping you complete the equipment commissioning and start formal production quickly without unnecessary delay. We have a complete spare parts supply system, with a large number of common and special spare parts in stock, which can realize timely supply and delivery, minimizing production downtime caused by component wear and failure.
Call to Action
Are you looking for a high-efficiency, high-precision plastic preform injection molding machine or plastic cap making machine for your packaging production line? Contact us now and tell us your specific production needs, including the raw material of your products, the weight and size of single products, the required hourly output and any customized production requirements. Our professional technical and sales team will provide you with a tailor-made production solution and detailed quotation as soon as possible, and answer all your questions about machine operation, maintenance and after-sales service in detail. Choose Huili Machinery, and get a reliable and efficient production partner for your plastic packaging business!
FAQ
What is the clamping force range of the machine?
Its clamping force ranges from 98 ton to 1500 ton, covering the molding needs of small-sized plastic caps and large-volume beverage bottle preforms.
What optimization has the machine made for PET materials?
It has customized plasticizing and cooling systems to enhance the transparency and surface finish of PET preform products, and production efficiency is 10% higher than that of standard machines.
Can the machine connect with automated production equipment?
AYes. It is designed with standard robot mounting holes to realize quick connection with automated production equipment.