onestepblowmachine-siteicon

EP-HGY250-V4-B injection stretch blow molding machine | 4 station

Our EP-HGY250-V4-B Injection Stretch Blow Molding machine is engineered to meet these rigorous demands. This one-step four-station system integrates injection, temperature conditioning, stretch blowing, and ejection into a single seamless process. It is specifically designed to handle PET and PETG materials with extreme precision, allowing for the production of bottles with diameters up to 160mm. Whether you are producing specialized medical containers or luxury cosmetic jars, this injection stretch blow molding machine provides the technological edge required to dominate the competitive South American market. Its compatibility with existing Japanese Aoki 250 model molds further enhances its versatility, making it a robust replacement injection stretch blow moulding machine.

1. EP-HGY250-V4-B injection stretch blow molding machine Technical Parameters

This Injection stretch blow moulding machine is capable of producing containers ranging from small 20ml vials to large 5-liter jars, depending on the cavity configuration. The theoretical injection capacity reaches up to 680g with a 60mm screw diameter, facilitating the creation of thick-walled luxury cosmetic bottles that require perfectly distributed material. When analyzing the injection stretch blow molding products, one will notice the absence of a parting line at the base and a perfectly crystalline finish, attributes only achievable through a high-end injection stretch blow molding machine.

Item Unit One-step Injection Stretch Blow Moulding Machine (4-station, Double-row Machine)
Machine Name One-step Injection Stretch Blow Moulding Machine (4-station)
Model HGY250-V4-B (Double-row Machine)
Manufacturer HENGGANG
Material PET/PETG
Screw Diameter MM 50 55 60 /
Theoretical Injection Volume CM³ 315 442 480 /
Screw Rotational Speed (RPM) r/min 270 180 150 ~ 220 /
Injection Clamping Force KN 300
Blowing Clamping Force KN 250
Motor Power KW 67.7
Heating Power KW 15
Blowing Air Pressure Mpa 2.0-3.5
Cooling Water Pressure Mpa 0.4-0.6
Machine Oil Cooler Water Pressure Mpa 0.3-0.4
Machine Oil Cooler Water Temperature °C 20-25
Voltage V 370-400
Size (L*W*H) MM 5200x2500x3800
Weight T 16

EP-HGY250-V4-B Injection Stretch Blow Molding Machine Product Dimensions

Product Dimensions Unit Value
Product Quantity PCS 8 10 12 14 16 20 24 28
Bottle Diameter (BD) MM 85 85 79 66 54 45 37 25
Bottle Height (H) MM 260
Neck Diameter (E) MM 58 56 48 38 32 26 24 15
Max. Bottle Volume (ml) ML 1000 900 800 600 400 250 100 50
Max. Bottle Weight (g) G 55 44 36 32 28 25 20 15

2. One-Step injection stretch blow molding Working Principle

The injection stretch blow molding process in our EP-HGY250-V4-B model is a sophisticated ballet of engineering. It begins at the first station with the injection of the preform. Unlike two-step systems, the preform is not cooled to room temperature; instead, it retains its heat, which is then precisely conditioned at the second station. This conditioning ensures a uniform temperature profile, which is critical for the biaxial orientation during the third station’s stretching and blowing. Here, the injection stretch blow mold expands the material into its final shape using high-pressure air. Finally, the fourth station handles the ejection of the finished product. This One-step injection stretch blow molding machine eliminates logistical errors, reduces energy consumption by up to 40%, and prevents surface scratches on the preforms.

Injection Stretch Blow Molding Machine Show

3.Material Versatility and Processing Capabilities of the Injection Stretch Blow Molding Machine

Technical Standard Machine Parameter
Using 3 sets of servo pump systems; Screw Diameter: 60mm (optional);
Inovance/WEICH servo motor power: 67.7KW; Theoretical Injection Capacity: 680g;
Using the Inovance/MIRLE PLC; Injection clamping force: 300KN;
The turntable is equipped with a Japan Yaskawa servo motor or a WEICH servo motor with a Taiwan TSUNTIEN reducer; Upper mold stroke: 600mm;
The blow molding structure adopts hydraulic cylinder or dual servo motor mold clamping system with high-pressure compensation function; TEMP. Regulating core stroke: 250mm;
Using the American Parker high-pressure valve; TEMP. regulating barrel stroke: 250mm;
Using the Airtak air cylinder; Take-out stroke: 200mm;
Using integrated control box to control temperature, which is highly accurate, stable, and easy to operate; alternatively, you can choose the system's built-in temperature control system; Blowing clamping force: 250KN (single side);
Using hydraulic pressure control valve of YUKEN from Taiwan/China; Blow core stroke: 300mm;
The screw is heated by a nano-far-infrared energy-saving heating ring(15KW); Blow mold stroke: 75+75mm;
The injection unit is controlled by single cylinder. The melt motor may be controlled either hydraulically or by a servo motor; Oil tank VOL: 300L;
Oil tube is made of imported material from Italy; Size(L×W×H): 5.2×2.5×3.8m;
Total power of the machine: 82.7KW. Weight: 16T.

4. Compatible Materials and Material Integrity

Material choice defines the utility and marketability of injection stretch blow molding products. The EP-HGY250-V4-B is highly adaptable, primarily working with PET and PETG, but also capable of processing PP, PC, and the increasingly popular Tritan (BPA-free) materials. In Colombia, where environmental regulations are tightening, the ability of this Injection stretch blow moulding machine to process recycled PET (rPET) without compromising bottle clarity is a massive advantage. PETG provides the high impact resistance needed for chemical containers, while Tritan is favored for premium baby bottles and reusable sports water containers. Because the injection stretch blow molding machines control the entire thermal history of the plastic, they prevent material degradation, ensuring that the final blow moulding video of your production line shows nothing but flawless, crystal-clear results. This level of material control is what distinguishes a professional injection stretch blow molding machine supplier from generic equipment providers.

onestepblowmachine-products-show7

 

5. Versatile Application Scenarios in Colombia

Cosmetics & Beauty

Perfect for producing thick-walled jars and elegant perfume bottles with no parting lines, typical for luxury brands in Bogotá.

Pharmaceuticals

Ensures 100% hygiene and high-precision neck finishes for medicine bottles that require child-resistant caps.

Food & Beverage

Ideal for wide-mouth jars for coffee, honey, and edible oils, providing excellent oxygen barrier properties.

Infant Care

Processes high-transparency PPSU and Tritan for BPA-free baby bottles that can withstand high-temperature sterilization.

onestepblowmachine-banner3

6. 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

Factory Workshop View 1
Factory Workshop View 2
Factory Workshop View 3
Factory Workshop View 4

7. Field Engineer Notes: Client Success Stories

Customer: Cosmetic Container Producer - Cali, Colombia

Purpose: High-end PETG Cosmetic Jars

"As an on-site engineer, I observed the commissioning of the EP-HGY250-V4-B. The client was previously struggling with uneven wall thickness using a two-step process. Within two days of installing this Injection stretch blow moulding machine, the scrap rate dropped from 15% to less than 1%. The clarity of the PETG jars is exceptional, meeting the strict aesthetic standards of their European export partners. The 4-station design significantly improved their cycle time, effectively doubling their daily output."

Customer: Pharmaceutical Packaging Factory - Bogotá, Colombia

Purpose: Precision PET Eye Drop Bottles

"The pharmaceutical industry requires zero contamination and perfect neck threads. We replaced their aging asb injection molding machine with our HGY series. The client was particularly impressed with the integrated temperature control, which ensures that every batch of PET vials is identical. The machine’s stability during 24/7 operation has made it the heart of their production facility. They are already planning to add a second unit to meet the rising demand in the local health sector."

onestepblowmachine-products-show

8. One-Stop Packaging Line Solutions

To ensure complete operational efficiency, we offer integrated mechanical systems. For instance, our high-precision Gearboxes are designed for maximum torque transmission in heavy-duty industrial applications. We emphasize system compatibility and a one-stop supply advantage to help our clients streamline their maintenance and procurement processes.

onestepblowmachine-related-products-gearbox

FAQ

Q1. How does the injection stretch blow molding machine process improve container clarity in pharmaceutical applications?

A1. The one-step process prevents the preform from cooling down and being reheated, which avoids surface crystallization and scratches, resulting in medical-grade transparency.

Q2. What are the primary benefits for a Colombian cosmetic supplier when upgrading to an injection stretch blow molding machine?

A2. The primary benefits include a scratch-free finish, no bottom parting line, and the ability to produce complex shapes with perfectly distributed wall thickness.

Q3. How energy efficient is a 4-station injection stretch blow molding machine compared to older 3-station industrial models?

A3. The 4-station design allows for better cooling and conditioning, which optimizes the thermal efficiency of the plastic and reduces the overall cycle time and power draw.

Q4. Which materials are most compatible with the EP-HGY250-V4-B injection stretch blow molding machine for high-strength bottles?

A4. PET and PETG are the most common, but this machine is also highly efficient with Tritan and PC for high-strength, reusable applications.

Q5. When should a packaging manufacturer choose a one-step injection stretch blow molding machine over traditional two-step systems?

A5. A one-step system is best when the product requires high aesthetic quality, precision neck finishes, or when floor space and energy efficiency are priorities.

Q6. How does the EP-HGY250-V4-B injection stretch blow molding machine handle different cavity counts for high-volume production?

A6. The machine can be configured for 2 to 14 cavities depending on bottle size, allowing for massive production scalability for high-demand products.

Q7. Which safety standards are followed by leading injection stretch blow molding machine manufacturers for industrial equipment exports?

A7. We comply with international CE and ISO standards, ensuring all mechanical and electrical components meet rigorous safety and durability protocols.

Editor: PXY