Guanxin Plastic Machinery have lots of experience in the PET preforms manufacturing process. We designed the PET preform injection molding machines with lots of optimized functions, manufacturing process management, production management and quality control systems. We provide you a turnkey solution for full process of Dehumidification Drying raw materials, quantitative additive color mixing machine, rapid and stable injection molding output of bottle preform, PET preform mold with hot runners, rapid cooling robot mechanism; Total production cost down with high productivity, and lowest blow bottle defect rate of only 0.5%.
Our PET Preform making machines is widely use for different PET molding products. Includes PET water bottle preforms, soft drink bottle preforms, edible oil bottle preforms, PET hot fill bottle preforms, PET Jars containers preforms, 3 gallon & 5 gallon preforms, normal PET packing containers and box.
3 & 5 Gallon Bottle Preforms
PET Preform Making Machine is an optimized injection molding machine for PET preforms injection molding. It is the most important PET machine in PET bottle preform manufacturing process. Or even in whole PET bottle production process. Almost all the PET injection moulding machine is dedicated designed according to the PET materials characteristics. An professional PET injection moulding machine should be optimized the injection unit (Screw, barrel, heating, etc), Clamping Unit ( Clamping platen, clamping force, Ejectors, etc), and the machine`s frame & controls.
Advantages of Guanxin PET PREFORM Injection Machine
Fast & Efficient
Enlarged the clamping platen and space between tie bars big cavities.
Fast Computer: Techmation controling system, which is easy for operation with strong expandability and can realize real-time synchronization control of machine and robot running.
Fast Injection: Accumulator with servo valve is adopted to control the injection, which makes the accurate shot;The synchronous plasticizing and injection ensures the application of big injection volume and shorten the circle time.
Fast mold open: Unique accumulator with servo valve for ejector and opening-closing mod hydraulic control system ensures the ejection and opening-closing mold movement stable, fast and accurate. This can protect the mold efficiently and match the requirement of take-out robot.
Fast Robot: Special designed high performance robot for preform taking–out is equipped with German SEW servo systerm, ensures the movement fast and stable, can provide 3-time cycle cooling outside the mold.The equipped ice water cooling system ensures the preform to be cooling down without stress.
Efficiency Hydraulic Circuit System: Accumulator with servo valve is adopted to control the injection accurately; Two-circuit hydraulic designs makes high speed and high efficiency, synchronization on plasticizing and opening-closing the mold to shorten the production cycle.
Synchronization pressure holding and plasticizing: Optional unit with pressure holding and plasticizing at the same time, which can increase the output by 15%~25%.
Reliable & Energy Saving
Branded controlling system is adopted for injection, recovery, plasticization, mould clamping, and ejection.
Closed-loop servo valves enable the machine to react fast and precisely to the PLC signals.
Branded servo driving systems ensure fast and accurate moving of the robot plate.
Multiple differential circuits mechanism is used for hydraulic control of the machine, which reduces lost energy
Servo motor and full circle feedback controlling system is used. Energy saved by 30%~50% compared with a fixed hydraulic pump system
Wide range PET shot weight from 777 grams to 3350 grams machines to choose for exactly requirements and waste no more energy.
Fully Optimized Designed & High Performance
Our PET preform injection molding machine is dedicated for the PET preform manufacturing process with Low-temperature Plasticizing System, Eco-friendly and Energy-saving, Lower Hydraulic System Pressure, Shorter System Response Speed, Faster Injection / Shot Speed, Lower Molecular Internal Stress, Higher Tenacity & toughness Products.
Clamping Unit
Enlarged the clamping platen and space between tie bar big cavities.
Optimized clamping force to have a competitive price.
Optimized the toggle to have a bigger mold opening stroke.
Enlarged eject stroke and eject force.
Fully closed safe door and plate for better quality and short cycle time.
Mold dehumidifier for high-speed PET injection molding system.
Water distributor with pressure and flow adjustable.
Synchronous ejection is optional as required.
Enlarge mold opening stroke is optional as required.
Injection Unit
The Diameter of the Screw is bigger compared to normal injection molding machines.
The screw L/D ratio is mostly 24， with better melting and color mixing.
Low shear, low compression ratio screw is the most collection.
The mixing element is more complex and optimized to have bright color.
Bigger hole of injection nozzle for PET material injection.
Screw and barrel support construction to avoid getting bending.
The nano-heating band is the standard configuration for energy saving.
Four or above stages precise temperature PID control for the barrel.
