Name: PET Injection Moulding Machine
Brand: Jinming
SKU: 249989288

Description

Technical Parameters

What is PET Injection Moulding Machine

PET (polyethylene terephthalate) injection molding is a process used to create plastic parts and products by injecting molten PET material into a mold. PET injection molding machines, also known as PET injection presses, are specialized machines designed specifically for the injection molding of PET plastic. They are typically used to produce a wide range of plastic products, including bottles, containers, and other products that are made from PET plastic.

Benefits of PET Injection Moulding Machine

Cost-Effectiveness
PET injection moulding is a highly efficient process that allows for the mass production of parts at a relatively low cost. The ability to produce large quantities of identical parts reduces per-unit costs.

High Productivity
PET injection machine are designed for high-speed production, enabling manufacturers to meet large orders quickly and efficiently. The fast cycle times contribute to increased productivity.

Consistency and Precision
The precision of PET injection moulding ensures that each part produced meets exact specifications. This consistency is crucial for industries such as packaging, where uniformity is essential.

Material Efficiency
PET preform molding machine are designed to minimize material waste. The machines can be programmed to use the exact amount of material needed for each part, reducing scrap and material costs.

Versatility
PET preform machine can produce a wide range of products in various shapes and sizes. This versatility allows manufacturers to diversify their product offerings and meet the demands of different industries.

Environmental Benefits
PET is a recyclable material, making it an environmentally friendly choice for packaging and other products. PET injection moulding machines contribute to sustainability by enabling the production of recyclable products.

Horizontal Energy Saving Injection Molding

low body, no height limitation for plant: the design of horizontal injection molding machine makes its body low, no special requirement for plant height, suitable for installation in various heights of the plant.

Liquid Silicone Rubber Injection Molding Machine

Self-developed (20/200l) liquid silicone feeder with optional German 2KM host;
Multi-level precision mold electric temperature control. Liquid silica gel special hydraulic water-cooled closed nozzle, material pipe set

Horizontal Umbrella Bone Injection Molding Machine

Vertical mold locking, horizontal injection structure, with the characteristics of easy to take and put the pieces, no column, three-sided open, easier to produce long workpiece plastic products.

Horizontal Two-Color Injection Molding Machine

This product is suitable for two-color and two-material one-time molding of the injection molding parts, the use of disc multi-station design, improve production efficiency.

Horizontal Bakelite Injection Molding Machine

Low body, no height restriction for the plant where it is placed: the design of horizontal injection molding machine makes its body low, which has no special requirement for the height of the plant, and is suitable for installation in plants of various heights.

Horizontal BMC Injection Molding Machine

Where products can be automatically dislodged, automatic molding is possible without a robot: In the case where products can be automatically dislodged, the horizontal injection molding machine can realize automated molding without the use of a robot.

Horizontal Single Slide Injection Molding Machine

Single/double sliding mold and turntable device are available according to customer's requirement.

Horizontal Double Slide Injection Molding Machine

Adopting high quality self-lubricating bearings in the movable parts, which makes the maintenance of the machine more convenient.

Horizontal Disc Injection Molding Machine

Double-position(or triple-position)rotary table with stable rotation and accurate positioning, which can improve the production efficiency up to 30%-50%.

Why Choose Us

01/

Advanced equipment
We take strong measures to ensure that we use the highest quality equipment in the industry and that our equipment is regularly and meticulously maintained.

02/

Competitive prices
We offer our products at competitive prices, making them affordable for our customers. We believe that high-quality products should not come at a premium, and we strive to make our products accessible to all.

03/

Rich experience
Has a long-standing reputation in the industry, which makes it stand out from its competitors. With over many years of experience, they have developed the skills necessary to meet their clients' needs.

04/

High quality products
We always put customer needs and expectations in the first place, refine on, continuous improvement, to seek every opportunity to do better, to provide customers with their expectations of quality products, to provide customers with the most satisfactory service at anytime.

05/

State-of-the-art technology
We use the latest technology and tools to deliver high quality services. Our team is well-versed in the and advancements in technology and uses them to provide the best results.

06/

Customer satisfaction
Providing after-sales services can enhance customer satisfaction by ensuring that customers' needs are met even after the purchase. This can lead to increased customer loyalty and positive word-of-mouth referrals.

What Is the Overpressure in an Injection Molding Machine

The overpressure in an injection molding machine is the amount of pressure needed to inject molten material into a die or form. It can be determined by measuring the clamp force required to hold the tool closed (clamp pressure) and subtracting it from the actual injection pressure experienced by the part being molded. Depending on the type of plastic being molded, this may range anywhere from 70psi to several hundred psi. As an example, for most thermoplastic materials, a common rule-of-thumb states that clamp force should typically be 10% greater than the amount of desired injection pressure.

Adjusting a mold injection molding machine requires understanding both what kind of plastic you are using and what kind of parts you wish to create with it. Different plastics require different levels and types of pressures - some require more powerful injection forces while others may need lower pressures but longer ''dwell'' times (wherein molten material is held at high temperatures within a closed system). Knowing these parameters ahead will help you adjust your settings accordingly; many machines have software specifically designed for setting up particular molds, which makes adjusting easier as well.

Also important when adjusting your machine is understanding how backpressure affects seal testing as well as gate size, wall thicknesses and other design features that depend on consistent repeatable injections in order to create quality parts every time - too little or too much backpressure can throw off balance points with serious consequences down stream during product assembly if not accounted for early in process development stage. Finally knowing how non return valves work within any specific hydraulic circuitry setup will allow troubleshooting efforts become more successful due proper knowledge base understanding about how each component interacts under certain conditions – allowing pinpoint accuracy issue solving with minimal additional technical investment costs involved.

Types of PET Injection Molding Machines

The PET injection molding industry has seen substantial advancements over the years, with various types of machines being developed to meet the growing complexities of PET product manufacturing. The choice between different types of PET Injection Molding Machines largely depends on the specific needs of the manufacturing process. Below, we explore the three main types of PET Injection Molding Machines and their unique features:

Hydraulic Injection Molding Machines

Hydraulic machines have been the traditional choice in the injection molding industry. They are powered by hydraulic systems which drive the motion of the machine's moving parts. These machines are known for their robustness and are capable of delivering high clamping force, making them suitable for molding high-strength PET products. However, they might not be as energy-efficient or precise as their electric counterparts.

Electric Injection Molding Machines

Electric machines have gained popularity due to their precision and energy efficiency. They operate using electric servomotors which control the machine's movements, providing a high level of accuracy and repeatability. Electric machines are also quieter and faster, making them a preferred choice for high-speed, high-precision molding applications. Moreover, they contribute to a cleaner working environment as they don't use hydraulic oil.

Hybrid Injection Molding Machines

Hybrid machines combine the strengths of both hydraulic and electric machines. They utilize hydraulic systems for delivering high clamping force, and electric servomotors for precise control over the machine's movements. Hybrid machines offer a good balance between performance, precision, and energy efficiency, making them a versatile choice for a variety of molding applications.

PET Injection Moulding Machine Applications

PET Injection Moulding Machines are widely used in various industries for the production of PET preforms, which serve as essential components in the manufacturing of PET bottles and containers. Here are some common applications of PET Injection Moulding Machines:

Beverage Industry: PET bottle injection moulding machine is extensively used in the beverage industry for producing PET bottles for water, carbonated drinks, juices, energy drinks, and other beverages. These machines enable the efficient and high-speed production of PET preforms that are later stretch-blow moulded into bottles.

Food Industry: These machines play a vital role in the food industry for manufacturing PET containers for edible oils, sauces, dressings, condiments, dairy products, and other food items. PET bottles provide excellent product protection and shelf appeal.

Personal Care and Cosmetics: This moulding machine is utilized in the production of PET containers for personal care products such as shampoos, conditioners, lotions, creams, body washes, and perfumes. PET bottles are preferred for their transparency and attractive appearance.

Pharmaceutical Industry: PET Moulding Machines find application in the pharmaceutical industry for producing PET containers for medicines, vitamins, dietary supplements, and other pharmaceutical products. PET bottles offer excellent moisture barrier properties and ensure product integrity.

Household Products: Injection Moulding Machines are employed for manufacturing PET containers for household products like cleaning agents, detergents, fabric softeners, and other household chemicals. PET bottles are resistant to chemicals and provide convenient packaging solutions.

Industrial and Automotive Applications: PET Injection Moulding Machines are also utilized in industrial and automotive applications for producing PET containers for lubricants, engine oils, automotive fluids, and industrial chemicals. PET bottles offer durability and resistance to harsh environments.

These are just a few examples of the wide range of applications where PET Injection Moulding Machines are used. The versatility, efficiency, and excellent transparency of PET preforms produced by these machines make them essential in various industries for packaging solutions.

Core Components of PET Injection Molding Machine

The efficacy of a PET Injection Molding Machine lies in its core components. Each component plays a crucial role in ensuring the machine operates smoothly and produces high-quality PET products. Below are the central components that form the backbone of a PET Injection Molding Machine:

Injection Unit

The injection unit is the heart of the machine where the plasticizing of PET material occurs. It heats the PET material to a molten state and injects it into the mold under high pressure. The precision and speed of the injection unit are vital to ensuring the molten PET fills the mold completely and accurately.

Barrel

The barrel houses the screw and is where the PET material is heated until it reaches the molten state. It is designed to withstand high temperatures and pressures, ensuring a consistent plasticizing process which is crucial for the quality of the final product.

Screw

The screw is a core component that mixes, melts, and pumps the PET material through the barrel. It ensures the material is evenly heated and well-mixed before it's injected into the mold, playing a crucial role in the plasticizing process.

Clamping Unit

The clamping unit holds the mold securely during the injection and cooling process. It ensures the mold halves are perfectly aligned and sealed to prevent any material leakage, which is essential for producing precise and high-quality PET products.

Hydraulic System

The hydraulic system powers the moving parts of the machine, providing the necessary force to operate the injection and clamping units. It ensures smooth and precise movements, which is crucial for the overall performance and efficiency of the machine.

Control System

The control system is the brain of the machine, orchestrating the operations of all other components. It allows for precise control over the various parameters such as temperature, pressure, and cycle time, enabling a high level of consistency and quality in the produced PET products.

Working Principle of PET Injection Moulding Machine

Material Preparation

Polyethylene Terephthalate material, in the form of PET resin or PET pellets, is loaded into a hopper and fed into a heated barrel. The PET material is then melted by the rotation of a screw within the barrel.

Injection

Once the Polyethylene Terephthalate material reaches the desired melting temperature, it is injected into a mould cavity through a nozzle. The mould is normally made of two halves that form the shape of the PET preform.

Cooling and Solidification

After injection, the PET preform quickly cools and solidifies inside the mould cavity. Cooling can be augmented by the circulation of cooling water or air through the mould.

Mould Opening and Ejection

Once the PET preform has solidified, the mould opens, and ejector pins or plates push the preform out of the mould cavity. The preform is then collected for further processing, such as stretch-blow moulding to form the final PET bottle or container.

Choosing the Right PET Injection Moulding Machine

When selecting a PET injection moulding machine, it is important to consider several factors to ensure you choose the right machine for your production needs:

Machine Size and Capacity
The size and capacity of the machine should match the volume and size of the parts you intend to produce. Larger machines are capable of producing bigger parts, while smaller machines are suitable for smaller components.

Cycle Time
The cycle time of the machine will affect your production efficiency. Machines with faster cycle times can produce more parts in a given period, increasing productivity.

Energy Consumption
Energy efficiency is an important consideration, especially for long-term cost savings. Look for machines that are designed to minimize energy consumption without compromising performance.

Ease of Maintenance
Choose a machine that is easy to maintain and service. Regular maintenance is essential to keep the machine running smoothly and prevent downtime.

Support and Training
Consider the availability of technical support and training from the manufacturer. Proper training ensures that your operators can effectively use the machine and troubleshoot any issues that may arise.

Our Factory

Yuyao Jinming Machinery Co., Ltd. was established in 2010, with products for a wide range of markets. The company focuses on the vertical injection molding machine, rubber injection machine and Bakelite, BMC and other high-precision injection molding equipment research and development and production, the introduction of advanced technology in Europe, Japan, quality is the key to business survival as the concept of enterprise development, continuous improvement and innovation, manufacturing a series of high-quality, high-precision vertical injection molding machine, the company's products are sold all over the world, excellent quality and perfect after-sales service by the Our products are sold all over the world, and our excellent quality and perfect after-sales service are well received by customers all over the world.

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FAQ

Q: What are the principles of injection molding machine?

A: The machine works on a simple principle: injecting molten plastic into a mold, cooling it until it solidifies, and then ejecting the final product. This method's efficiency and reliability make it a go-to technique for mass production of plastic items.

Q: Do injection molding machines use electricity?

A: Electric injection molding machines operate with digital control systems. The various components of electric molding machines are mechanically driven. Electric injection molding machines tend to run with a high level of consistency.

Q: Who uses injection molding machine?

A: Automotive. Like aerospace, automotive injection molding is used to craft many plastic parts and components in most vehicles. Automotive manufacturers utilize injection-molded parts on their vehicles' exterior (bumpers) and interior (dashboards, cup holders, etc.).

Q: What is the basic knowledge of injection molding machine?

A: An injection molding machine is the most important equipment for injection molding; that transforms raw plastic pellets into a myriad of products. This marvel of modern engineering melds heat and pressure to morph plastics into shapes and sizes ranging from simple bottle caps to complex automotive components.

Q: What are the 3 main parts of an injection molding machine?

A: An injection molding machine comprises four main components: the base, the hopper, the barrel, and the clamping unit. There are also smaller components such as the nozzle, ejector pins, split mold, clamping unit, injection unit and hydraulic unit.

Q: What is the purpose of injection molding machine?

A: Injection moulding is used to make a range of widely used products, including common plastic items like bottle tops as well as remote control casings, syringes and more. It is also commonly used for manufacturing larger items such as car body panels.

Q: What is the basic function of injection moulding machine?

A: The injection molding machine is made up of three main components, which are the feed hopper, the screw, and the heated barrel. This machine works by taking plastic powder or granules and manipulating it to shape it into a part according to the requirements and dimensions.

Q: How long to soak in injection molding machine?

A: Soak time depends on the extruder size. Soak time for a 10-in. extruder can be as long as a day, for instance. Typically, though, 30-60 min after the highest zone reaches its setpoint is adequate soak time before starting the extruder drive.

Q: What temperature should an injection molding machine be?

A: The mold temperature should be set in a manner such that the surface temperature will be between 120 to 180°C. Also, ensure that the surface of the mold has a uniform temperature distribution. If the mold temperature is excessively low, moldings may warp or crack (rupture) due to residual stresses.

Q: What is the pressure for injection molding machine?

A: Pressure is applied to the molten plastic that results from the main hydraulic pressure pushing against the back end of the injection screw (or plunger). The pressure can be between 1000 and 5000 psi in the hydraulic lines. This translates into injection pressure between 10,000 and 20,000 psi.

Q: How many watts does an injection molding machine use?

A: The power consumption of electric injection molding machines ranges from 3.8 kWh to 17.9 kWh. Manufacturers can minimize power consumption by considering factors such as machine utilization, energy-saving features, and maintenance practices while maintaining high productivity and product quality.

Q: How to reduce power consumption in injection molding machine?

A: The combination of temperature control, intelligent device communication and smart process control leads to maximum efficiency of your system. In this way, the power consumption and CO2 emissions of your injection moulding machine can be reduced by up to 67% depending on the application and machine.

Q: What motor is used in injection molding machine?

A: For Injection Moulding Machines, liquid-cooled three-phase asynchronous motors in both low and high voltage are used. Mainly employed are motors and pumps of the size 250 and 315 of a voltage range between 400 and 460 V as well as 75 and 460 kW.

Q: How do you calculate injection molding machine capacity?

A: Theoretical injection capacity = (injection molding machine) barrel cross-sectional area × screw stroke. Injection weight = injection capacity × melt density of raw materials × injection efficiency.

Q: What maintenance is required for an injection molding machine?

A: Regular maintenance is necessary to ensure the optimal performance and longevity of an injection molding machine. This may include cleaning, lubrication, inspection of components, replacement of wear parts (e.g., screws, barrels, nozzles), and adherence to a preventive maintenance schedule.

Q: How do you reduce the cycle time of an injection molding machine?

A: Optimizing material selection and processing will enhance filling time as well as reduce cooling times, ultimately decreasing overall cycle duration. Optimizing all factors of injection molding production, from mold design and tooling to material selection and processing, can optimize efficiency and reduce cycle times.

Q: What types of materials can be used with injection molding machines?

A: Injection molding machines can work with a wide range of plastic materials, including thermoplastics (e.g., polyethylene, polypropylene, polystyrene, polyvinyl chloride) and engineering plastics (e.g., ABS, nylon, polycarbonate, PEEK). The choice of material depends on factors such as the desired properties, application requirements, and cost considerations.

Q: What you should be considered when selecting an injection molding machine?

A: When selecting an injection molding machine, important factors to consider include:Production requirements: The desired production capacity, part size, and complexity.Machine specifications: Consider the clamping force, injection capacity, shot size, injection pressure, and mold thickness capacity.Control system: Evaluate the control features, precision, and user-friendly interface.Energy efficiency: Consider the energy consumption and efficiency of the machine.Cost: Evaluate the initial investment, operating costs, and potential return on investment.

Q: What is the most common injection molding machine?

A: The horizontal injection molding machine is used the most and has the broadest range of applications. This machine is designed with a comparatively low body, rapid molding, and user-friendliness in operation and maintenance.

Q: How big of an injection molding machine do I need?

A: To calculate the required machine tonnage and injection volume, consider the following: Tonnage: Calculate the tonnage required by multiplying the projected area of the part being molded by the pressure required to inject the plastic material into the mold.

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MACHINE MODEL	unit	JM-108T			JM-140T			JM-170T			JM-200T			JM-220T			JM-268T			JM-300T			JM-350T			JM-428T			JM-538T			JM-650T			JM-1200T			JM-1600T			JM-2000T			JM-2500T
INJECTION UNIT		A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C	A	B	C
Screw Diameter	mm	32	35	38	40	42	45	40	45	50	45	50	55	50	55	60	55	60	65	60	65	70	65	70	75	75	80	85	80	85	90	85	90	100	38	42	45	40	45	50	45	50	55	50	55	60
Screw L/D Ratio	L/D	25	23	21	22	21	20	24	22	20	25	22	20	22	20	18.5	24	22	20.5	22	20.5	19	22	20	19	23	22	21	22	20.7	19.5	24.6	23.2	20.9	21	19	17.8	22.5	20	18	22	19.8	18	24	21.8	20
Shot Volume	cm3	144.5	173	204	238.5	263	302	332.3	381.5	471	381.5	471	569.9	510.3	617.4	734.7	593.6	706.5	829.1	819.5	961.8	1115.4	1077.9	1250.1	1435	1633.7	1858.8	2098.5	1959.3	2211.9	2479.8	2892.5	3242.8	4003.5	232	284	326	301	381	471	413	510	617	549	665	791
Actual Injection Volume	g	131.5	157.4	185.6	217	239.3	274.8	302.4	347.2	428.6	347.3	428.6	518.6	464.4	561.8	668.6	540.2	642.9	754.5	745.7	875.2	1015	980.9	1137.6	1305.9	1486.9	1691.5	1909.6	1783	2012.8	2256.6	2632.2	2950.9	3643.2	211	258	296	273	346	428	375	464	561	499	605	719
Injection Pressure	Mpa	204	164	149	159	148	130	176	154	123	164	131	109	158	132	113	173	148	126	148	126	109	160	139	120	156	137	120	148	130	116	142	127	103	186	152	132	216	171	138	210	170	140	244	202	170
CLAMPING UNIT
Clamp Tonnage	KN	1080			1400			1700			2000			2200			2680			3000			3500			4280			5380			6500			1200			1600			2000			2500
Toggle Stroke	mm	325			380			430			440			490			550			580			625			750			770			920			380			440			490			580
Space Between Tie-Bars	mm	360×360			420×420			470×470			480×480			530×530			580×580			630×630			670×670			760×760			830×830			880×880			470*420			520*470			575*525			625*575
Max Mould Thickness	mm	400			450			500			580			550			650			700			800			820			850			880			450			520			550			620
Min Mould Thickness	mm	100			130			150			180			200			220			220			250			280			300			380			160			180			200			230
Ejector Stroke	mm	100			120			130			140			140			160			160			165			180			240			240			140			140			150			160
Knockout Quantity	P	5			5			5			5			5			9			9			13			13			13			21			5			5			5			9
Ejector Tonnage	KN	27			40			46			46			62			62			62			89			110			133			158			38			53			62			70
OTHERS
Machine Weight	T	2.9			3.2			4.5			5.2			6.4			7.8			9.1			11.9			16.5			19			21			4.8			5.7			7.8			10
Motor Power	KW	11			15			18.5			22			22			30			30			37			45			30+30			37+37			15			18.5			22			30
Heater Power	KW	6.3			8.7			10.8			12.5			14.9			17.4			17.4			18.5			31.3			33			43			7.4			9.9			11.5			13.5
Overall Dimensiom	m	4.1×1.1×1.65			4.2×1.2×1.8			5×1.4×1.8			5.2×1.3×2.2			5.6×1.4×2.2			6.1×1.5×2.3			6.4×1.5×2.4			7.5×1.9×2.4			7.8×2.0×2.3			8.1×2×2.3			9.2×2.1×2.4			4.5×1.4×1.8			5×1.5×1.9			5.5×1.6×2			5.9×1.8×2.3
Max. Pump Pressure	Mpa	14			14			14			14			14			14			14			14			14			14			14			17.5			17.5			17.5			17.5