PET Preform Injection Molding Machine Manufacturer in China

Guanxin Plastic Machinery has lots of experience in the PET preforms manufacturing process. We designed the PET prrform 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 are widely used 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 gallons; 5-gallon preforms, normal PET packing containers, and box.

Water Bottle_Edible oil bottle_PET Preforms

PET Bottle Preforms

Hot Fill Bottle Preforms

Wide Mouth Jar Preforms

3 & 5 Gallon Bottle Preform _ 3 gallon bucket preform

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, synchroniztion 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

All the PET Preforms injection molding machines were with servo motor driven, with 23%~50% energy saving.
Branded controlling system is adopted for injection, recovery, plasticization, mould clamping and ejection.
Closed-loop servo valves enables 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% comparing with fixed hydraulic pump system
Wide range PET shot weight from 777 grams to 3350 grams machines to choose for exactly requirments and waste no more energy.

Electric and Control System of PET Preforms injection moulding machine_PET Preforms making machine manufacturer in China

Fully Optimized Designed & High Performence

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 bars big cavities.
Optimized clamping force to have competitive price.
Optimized the toggle to have 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 comparing to normal injection molding machines.
The screw L/D ratio is mostly 24，better melting and color mixing.
Low shear, low compression ratio screw is a 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.
Nano-heating band is standard configuration for energy saving.
Four or above stages precise temperature PID control for barrel.

SPECIFICATION	Unit	PET160-800	PET210-1088	PET260-1134	PET300-1516	PET350-2183	PET420-3050	PET500-3350
Screw diameter	mm	60	60	67	75	83	90	95
Screw L/D ratio	(L/D)	24	24	24	24	24	24	24
Shot volume	cm3	693	764	969	1413	1866	2544	3046
Shot weight-@PET 1.3	Gram	806	977	1134	1623	2183	2977	3350
Injection Pressure	Mpa	136	134	136	140	141	145	185
Screw stroke	mm	245	245	275	320	349	400
Opening stroke	mm	440	490	560	610	660	730	830
Space between bars(H x V)	mm	460 x 460	530 x 530	580 x 580	630 x 630	680 x 680	730 x 730	830 x 830
Movable platen size(HxV)	mm	705 x 705	780 x 780	850 x 850	920 x 920	990 x 990	1070 x 1070	1200 x 1200
Max mold height	mm	500	550	580	630	680	730	830
Min mold height	mm	160	200	220	230	250	280	320
Ejector stroke	mm	145	150	150	150	160	180	220
Ejector force	KN	55	62	62	62	62	110	152
Number of ejector pins	pcs	4 + 1	4 + 1	4 + 1	4 + 1	4 + 1	4 + 1	4 + 1
Hydraulic system pressure	Mpa	16	16	16	16	16	16	16
Pump motor power	KW	18.5	23	29	29	39	44	19 + 19
Heater power	KW	14.6	14.9	15	17	19.5	23	42
Oil tank capacity	L	230	230	270	340	360	420	500
Machine weight	T	4.9	6.3	8	9.1	11.2	13.9	19
*Dimensions(LWH)*	M	5.3 x 1.3 x 1.8	6.2 x 1.5 x 2.2	6.7 x 1.6 x 2.2	7.1 x 1.6 x 2.2	7.6 x 1.7 x 2.4	8.2 x 1.9 x 2.5	9.2 x 2.1 x 2.6
* We reserve the right to make changes as a result of further technical advantages.