EP-HGY50-V3-EV one-step injection stretch blow moulding machine 3 station

Item	Unit	One-step Injection Stretch Blow Moulding Machine (3-station)
Name		One-step Injection Stretch Blow Moulding Machine (3-station)
Model		HGY50-V3-EV
Manufacturer		HENGGANG
Material		PET/PETG
Screw Diameter	MM	40	50	55
Theoretical Injection Volume	CM³	239	315	442
Screw Rotational Speed (RPM)	r/min	240	180	150
Injection Clamping Force	KN	50
Blowing Clamping Force	KN	100
Motor Power	KW	34.8
Heating Power	KW	10.4
Blowing air pressure	Mpa	2.0-3.5
Cooling Water Pressure	Mpa	0.4-0.6
Voltage	V	370-400
Size (L*W*H)	MM	3800*1200*2500
Weight	T	3.5

HGY50-V3-EV Injection Stretch Blow Molding Machine Product Dimensions

2. Advantages of Injection Stretch Blow Moulding Machine (EP-HGY50-V3-EV)

The HGY50-V3-EV Injection Stretch Blow Molding Machine is engineered to handle a diverse range of materials, including PET, PETG, PC, PCTG, and PP, making it versatile for producing high-quality containers for cosmetics, pharmaceuticals, baby bottles, and premium water brands. By employing a full servo system (Inovance/MIRLE), this injection stretch blow molding machine ensures unparalleled stability and dimensional accuracy, significantly reducing the defect rate compared to hydraulic alternatives.
Furthermore, the structural integrity of the EP-HGY50-V3-EV Injection Stretch Blow Molding Machine allows for the production of complex shapes and intricate designs often required in the cosmetic and personal care sectors. As leading injection stretch blow molding machine manufacturers, we understand that distinct packaging is key to brand identity. This machine supports variable cavity configurations, from 2-cavity setups for larger 2.5L containers to 4-cavity setups for smaller 100ml bottles, providing the flexibility needed for dynamic market demands.

The operational excellence of the EP-HGY50-V3-EV Injection Stretch Blow Molding Machine lies in its sophisticated injection stretch blow molding process. This 3-station Injection Stretch Blow Molding Machine streamlines production by eliminating the need to cool down and reheat preforms. In the first station, the Injection Stretch Blow Molding Machine creates the preform. Molten plastic is injected into the cavity, where the neck finish is molded to exact specifications. Because the preform retains its internal heat, the molecular structure remains optimal for stretching, ensuring superior clarity and strength in the final product.

The preform is then rotated 120 degrees to the stretch-blow station. Here, a stretch rod extends the preform axially while high-pressure air expands it radially against the mold walls. This biaxial orientation aligns the polymer chains, dramatically improving the container's barrier properties and drop resistance. Finally, the finished container moves to the ejection station. The entire cycle is controlled by advanced servo motors, ensuring that every movement is precise, repeatable, and energy-efficient. This injection stretch blow-moulding process is particularly advantageous for materials such as PET and PP, where temperature control is critical for crystal-clear aesthetics.

The new injection stretch blow moulding machine is designed to process a wide array of thermoplastic resins. Its advanced screw design and temperature control system make it highly effective for PET (Polyethylene Terephthalate), which is the standard for water and carbonated beverages due to its clarity and barrier properties. Additionally, the machine excels with PETG and PCTG, materials often chosen for premium cosmetic containers due to their glass-like transparency and chemical resistance. For medical applications or high-temperature resistance, the machine can also process PC (Polycarbonate) and PP (Polypropylene), offering manufacturers the ability to diversify their product lines without changing equipment.

 

As a professional Injection Stretch Blow Molding machine manufacturers Our state-of-the-art facility integrates R&D, precision machining, and rigorous testing to ensure every machine meets international standards. By using top-tier components from brands like Yaskawa and Parker, we ensure longevity and reliability.
Developed specialized blow molding machines for the packaging of various materials (PET/PETG/PC/PCTG/PP), including cosmetics, water, oil, beverages, food, pharmaceuticals, and baby products. Especially in high-end cosmetics, food, and pharmaceutical specialized machines, we have consistently maintained a leading position in the industry.

Workshop

While our primary focus is on cutting-edge plastic molding technology, we understand that many of our clients operate diverse industrial facilities requiring comprehensive mechanical support. For customers managing mixed-use manufacturing plants that include agricultural or heavy machinery sectors alongside packaging lines, ensuring the reliability of your mechanical transmission systems is just as crucial as your molding operations. We recommend high-quality Gearboxes to ensure your auxiliary equipment runs as smoothly as your blowing machines. Reliability in every component of your factory ensures maximized uptime and productivity.

Q1: What exactly makes the one-step injection stretch blow molding process different from the two-step method?

A1: The primary difference lies in the continuity of the process. In a one-step injection stretch blow moulding machine, the preform is molded and then immediately stretched and blown into a bottle while it is still warm from the injection phase. This eliminates the need to cool the preform to room temperature and then reheat it, which is standard in two-step systems. This results in significant energy savings, a smaller machine footprint, and typically higher quality bottles with fewer surface blemishes since the preforms are not stored or transported.

Q2: When should a manufacturer choose a 3-station machine over a 4-station machine?

A2: A 3-station machine (Injection, Stretch-Blow, Ejection) is typically more compact and sufficient for most standard applications where preform conditioning can be managed within the injection or blowing stations. A 4-station machine adds a dedicated conditioning station, which offers more precise temperature control for complex shapes or difficult materials. For many cosmetic and pharmaceutical applications, the 3-station injection stretch blow moulding machine offers the best balance of efficiency, footprint, and capital investment.

Q3: What are the main advantages of using a full servo injection stretch blow moulding machine?

A3: A full servo system, like the one used in our EV series, offers precise control over every movement of the machine. This leads to higher repeatability and consistency in bottle weight and dimensions. Furthermore, servo motors consume energy only when moving, unlike hydraulic pumps that run continuously, leading to energy savings of up to 40%. They are also cleaner (no oil leaks), quieter, and require less maintenance, making them ideal for clean-room environments often found in pharmaceutical and cosmetic industries.

Q4: How does the Injection Stretch Blow Molding Machine handle different materials like PP compared to standard PET?

A4: Processing PP (Polypropylene) requires different temperature profiles and stretching speeds compared to PET. The HGY50-V3-EV injection stretch blow moulding machine features flexible software control that allows operators to adjust injection speeds, holding pressures, and conditioning temperatures to suit the rheology of PP. This versatility ensures that you can produce clear, high-gloss PP bottles that are often difficult to achieve with standard equipment.

Q5: Which industries benefit most from the injection stretch blow molding products made by this machine?

A5: Industries that require high aesthetic appeal and tight dimensional tolerances benefit the most. This includes the cosmetic industry (heavy-wall jars, mascara bottles), the pharmaceutical industry (eye droppers, pill bottles), and the infant care sector (baby feeding bottles). The machine allows for intricate neck designs and zero parting lines on the body, which are critical quality indicators for premium injection stretch blow molding products.

Q6: Where can I watch an injection stretch blow molding video to see the machine in action?

A6: We understand that seeing is believing. You can view a detailed injection stretch blow molding video on our website or request a specific video demonstration from our sales team. We often record trial runs of client molds to demonstrate cycle times and product handling. These videos provide a clear understanding of the machine's smooth operation and the efficiency of the 3-station rotary table design.

Q7: Is there a gray injection stretch blow moulding machine available, or other color options?

A7: While our standard branding often features the blue injection stretch blow moulding machine aesthetic, we are flexible with customization. If your facility requires a gray injection stretch blow moulding machine or a white injection stretch blow moulding machine to match existing production lines or corporate color schemes, we can accommodate these requests during the manufacturing order process. The internal components and performance remain top-tier regardless of the exterior paint finish.