EP-BPET-94-V3 injection stretch blow molding machine | 3 station
The EP-BPET-94-V3 Injection Stretch Blow Molding Machine is designed for high-precision production of PET, PP, PC, and Tritan bottles. With a screw diameter of 60mm and a theoretical injection capacity of 480cm³, it offers exceptional performance with an injection clamping force of 785 kN and a blow clamping force of 298 kN. The machine features a 3-station design, combining injection, stretching, and blowing in one continuous process, improving energy efficiency and reducing VOC emissions. It supports a maximum body diameter of 149mm and a maximum volume of 4500ml. The EP-BPET-94-V3 is an ideal solution for producing high-quality bottles, particularly in the cosmetics and pharmaceutical sectors, providing up to 40% energy savings compared to traditional systems.
1. Technical Parameters of EP-BPET-94-V3
| Model | Unit | BPET-70V4 | BPET-125V4 | BPET-94V3 |
|---|---|---|---|---|
| Screw diameter | mm | 45 | 60 | 60 |
| Screw L/D ratio | — | 24 | 24 | 24 |
| Theoretical injection capacity | cm³ | 340 | 480 | 480 |
| Injection clamping force | kN | 285 | 685 | 785 |
| Blow clamping force | kN | 115 | 286 | 298 |
| Chilled water | L/min | 80 | 80 | 80 |
| Cooling tower water | L/min | 200 | 200 | 200 |
| Driving power - rated | kW | 44KW-380V | 65KW-380V | 65KW-380V |
| Heater power - rated | kW | 8.9KW-220V | 12.5KW-220V | 12.5KW-220V |
| Oil tank capacity | L | 460 | 640 | 620 |
| Machine dimensions | L*W*H(mm) | 4400*1350*2900 | 5000*2050*3000 | 4800*2050*3000 |
| Machine weight | T | 5.1 | 11.6 | 11.6 |
| Max. Blow air pressure | Mpa | 3.5 | 3.5 | 3.5 |
| Machine running air pressure | Mpa | 1 | 1 | 1 |
EP-BPET-94-V3 Injection Stretch Blow Molding Machine Product Dimensions
| Cavity number | Unit | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|
| Max. External neck | mm | 110 | 109 | 89 | 70 | 42 | 34 | 30 | 24 |
| Max. Body diameter | mm | 149 | 130 | 130 | 100 | 80 | 66 | 54 | 48 |
| Max. Height | mm | 300 | 300 | 300 | 300 | 250 | 250 | 200 | 200 |
| Max. Volume | ml | 4500 | 2500 | 2500 | 1500 | 800 | 500 | 300 | 200 |
2. EP-BPET-94-V3 Injection Stretch Blow Molding Machine | High-Performance 3-Station System
The injection stretch blow molding machine is a cutting-edge solution for manufacturing high-precision hollow plastic containers. Our EP-BPET-94-V3 model features a sophisticated 3-station architecture that streamlines the production of PET, PP, PC, and Tritan bottles in a single heat cycle.
Max Body OD: 149mm | Max Volume: 4500ml | Stations: 3
Reduces power consumption by 40% compared to traditional injection stretch blow molding process methods.
4. Equipment Composition and Key Technologies of injection stretch blow moulding machine
The one-step injection stretch blow molding equipment mainly consists of five parts: injection molding system, heating system, stretch blow molding system, mold system, and control system. The key technologies of each system are as follows:
1. Injection Molding System
The injection molding system adopts a high-precision servo-driven injection unit, equipped with a dedicated screw and barrel to ensure uniform plasticization of the plastic melt. Key technologies include:
1.1. High-precision temperature control system (temperature control accuracy ±1℃)
1.2. Servo-driven injection unit (fast response speed, high repeatability)
1.3. Preform wall thickness control system (wall thickness optimization through axial or radial adjustment)
2. Heating System
The heating system adopts heating coils or water and oil heating methods, equipped with temperature sensors to monitor the temperature in real time. Key technologies include:
2.1. Zoned heating control (achieving precise temperature control of different parts of the preform)
2.2. Non-contact temperature measurement (avoiding damage to the preform surface)
2.3. Adaptive heating power adjustment (automatically optimizing heating parameters according to production speed)
3. Stretch Blow Molding System
The stretch blow molding system consists of a stretching rod, blow core, and high-pressure gas source, achieving axial stretching and radial inflation of the preform. Key technologies include:
3.1. Stretching mechanism (stretching speed up to 400mm/s, positional accuracy ±0.1mm)
3.2. High-pressure gas with an independent pressure regulating valve stabilization system (pressure fluctuation controlled within ±0.05MPa)
3.3. Stretch-blow molding synchronous control technology (ensuring precise coordination between the stretching and blow molding processes)
4. Mold System
The mold system includes the preform mold, blow molding mold, and cooling system, typically employing a rotary multi-station structure (3-4 stations). Key technologies include:
4.1. High-precision mold processing technology (cavity surface roughness Ra≤0.8μm)
4.2. High-efficiency cooling system (optimized cooling channel design, reducing cooling time by 30%)
4.3. Quick mold change technology (mold change time ≤60 minutes)
5. Control System
An independent control system is adopted to achieve centralized control and parameter optimization of the entire production process. Key technologies include:
5.1. Multi-axis motion control system (achieving precise synchronization of each workstation)
5.2. Adaptive optimization of process parameters (adjusting process parameters in real time based on production data)
5.3. Remote monitoring and fault diagnosis system (improving equipment operational stability)
5. The difference between 4-station and 3-station injection stretch blow molding machines
The primary difference between 4-station and 3-station injection stretch blow molding machines lies in the number of processing steps and stations involved in the production cycle.
1. 4-Station Machines:
The 4-station process adds an additional station dedicated to temperature regulation and pre-blowing (after the injection molding). This improves uniformity in wall thickness and overall product quality by ensuring the preform is at the ideal temperature before stretching and blowing.
This extra step increases flexibility and efficiency, especially for more complex containers that require precise thermal conditions.2. 3-Station Machines:
The 3-station machines typically combine the heating, pre-blowing, and stretching/blowing processes into fewer stages. This reduces the complexity of the system and may be suitable for simpler, less complex bottle designs where exact temperature control and pre-blowing are not critical.
The process is quicker but may have less control over wall thickness uniformity compared to the 4-station system.In essence, 4-station systems provide better quality control and efficiency, making them ideal for more demanding applications, while 3-station systems are more suitable for high-speed, simpler production requirements.
6. Injection stretch blow molding machine: Material Versatility & Global Standards
Material flexibility is a hallmark of the injection stretch blow molding products generated by our V4 series. The system is optimized for PET (Polyethylene Terephthalate), known for its recyclability and transparency, but it also excels with PETG, which offers enhanced toughness for high-end luxury packaging. For the Colombian food industry, the machine efficiently processes PP (Polypropylene), providing heat-resistant containers for hot-fill applications. Advanced engineering plastics like PC and Tritan (BPA-free) are also supported, enabling the production of reusable sports bottles and high-clarity baby feeding bottles. By utilizing premium alloys for our injection stretch blow mold components, we ensure a long service life and resistance to thermal fatigue, meeting international hygiene standards for food-grade contact materials.
7. Global Application Scenarios
Cosmetics & Beauty
Professional injection stretch blow molding products like high-clarity PET perfume bottles and thick-walled lotion containers that require premium shelf appeal.
Pharmaceuticals
Medicine bottles produced in cleanroom-compatible injection blow moulding environments, ensuring absolute hygiene and precise neck sealing for eye drops.
Baby Care (BPA-Free)
Utilizing Tritan and PPSU materials on our asb injection molding machine replacements to manufacture infant feeding bottles that are heat resistant and safe.
Food & Beverage
Wide-mouth jars for sauces and premium water bottles. The injection stretch blow mold versatility allows for unique, ergonomic designs.
8. Field Notes: Engineer Perspectives
"We recently installed the EP-BPET-94-V3 in our Bogota facility for a high-volume medicine bottle project. The precision of the 3-station system is outstanding. We were previously using expensive Japanese injection stretch blow molding machines, but this unit provides the same neck tolerance and body clarity at a much better value. The technical team assisted with the mold commissioning perfectly."
- Lead Production Engineer, Pharmaceutical Group (Colombia)
"Operating in Medellin requires equipment that can handle fluctuating power and humidity. The servo-driven injection stretch blow molding machine from EVER-POWER has been extremely stable. We produce Tritan baby bottles, and the clarity is indistinguishable from European brands. The one-step process has reduced our scrap rate by 12%."
- General Manager, Plastic Packaging Co. (Colombia)
9. Manufacturing Excellence & Global Support
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
10. Integrated Solutions: One-Stop Supply Chain
To further enhance your factory's operational efficiency, we offer full system compatibility with auxiliary industrial components. We also manufacture professional Gearboxes designed for heavy-duty industrial applications, ensuring consistent power transmission throughout your facility. Our one-stop supply advantage means all systems are synchronized for maximum durability and minimal downtime, providing a unified technological ecosystem for your plastic manufacturing needs.
Frequently Asked Questions
Q1. How does the injection stretch blow molding process improve container quality compared to two-step?
A1. The one-step injection stretch blow molding process keeps the latent heat in the preform, preventing dust contamination and surface scratches that occur during storage and transport in two-step systems.
Q2. What determines the clamping force in injection stretch blow molding machines?
A2. The clamping force is determined by the projected area of the preform during injection and the bottle during blowing. The V3 model offers up to 200KN of blowing clamping force.
Q3. Is it possible to view an injection stretch blow molding video of the V3 machine?
A3. We provide detailed injection stretch blow molding video demonstrations on our HomePage.
Q4. How energy-efficient are these white injection stretch blow moulding machine models?
A4. By using high-efficiency servo motors and eliminating preform reheating, our white injection stretch blow moulding machine saves up to 45KW-h per production ton.
Q5. How do I maintain an injection stretch blow mold for long-term production?
A5. Regular cooling channel cleaning and lubrication of moving pins are vital. Our injection stretch blow mold designs include easy-access maintenance features.
Q6. Which industries use injection stretch blow molding products most frequently in Latin America?
A6. Cosmetics, personal care, and pharmaceutical industries are the primary users of injection stretch blow molding products due to the need for high clarity and precision.
Editor: PXY
