Mastering the art of thick-walled cosmetic packaging with advanced single stage injection stretch blow molding machine technology.
Introduction to the ISBM Process & Core Advantages
One-step Injection Stretch Blow Moulding (ISBM) is an elite plastic container forming process engineered for high-precision, demanding hollow plastic products. This highly efficient máquina de moldeo por soplado de un solo paso seamlessly handles a broad spectrum of thermoplastic materials, including PET, PETG, PP, PC, Tritan, PS, ABS, and PLA.
The defining feature of this technology is that the injection of the preform, biaxial stretching, and final blow molding are completed continuously within a single integrated piece of equipment. There is no intermediate cooling or reheating phase. This leads to profound core advantages:
- High Energy Efficiency: By utilizing the residual heat from the injection stage directly for blow molding, energy consumption is reduced by approximately 40%, creating highly Soluciones de máquinas de moldeo por soplado de un solo paso y alta eficiencia energética.
- Rendimiento físico superior: The stretching process aligns the material molecules directionally, dramatically enhancing the container’s compressive strength, barrier properties, and optical transparency.
- Exceptional Precision & Stability: Fully automated, closed-loop control minimizes human error, making it perfect for mass production with zero flash and flawless neck finishes.
- Optimized Production Economics: High material utilization means almost zero scrap. You benefit from low energy costs, reduced manual labor, a compact factory footprint, and highly competitive final product pricing.
The Continuous ISBM Workflow
Inyección
Corte de cola de preforma / Conservación del calor
Moldeo por soplado y estirado
Botella para llevar
Deciphering the Mold System: 3-Station vs. 4-Station
The mold system, comprising the preform molds, blow molds, and cooling infrastructure, typically employs a rotary multi-station structure. The choice between a 3-station and a 4-station layout is the most critical decision when configuring your máquina de moldeo por soplado integrada.
The 3-Station Configuration
Process: Injection → Stretch Blow → Ejection
By skipping the conditioning station, the 3-station mold allows the preform to move directly from injection to blowing. This results in faster cycle times and a smaller machine footprint. It is highly recommended for standard round water bottles, pharmaceutical vials, and simple cylindrical containers.
The 4-Station Configuration
Process: Injection → Conditioning → Stretch Blow → Ejection
The 4-station design includes a dedicated temperature conditioning (heat preservation) station. This is the ultimate Equipo de moldeo por soplado de un solo paso para envases cosméticos.. Thick-walled PETG jars and complex asymmetrical shapes require precise thermal equalization before stretching. The 4th station prevents stress whitening and ensures absolute glass-like clarity in luxury packaging.
Advanced Mold Manufacturing Technology:
- High-precision machining achieving cavity surface roughness Ra≤0.8μm.
- Highly efficient cooling systems with optimized channel designs, shortening cooling times by 30%.
- Quick mold changeover technology allowing full replacement in ≤60 minutes.
Below is a closer look at our precision mold wiring and a completed custom mold ready for production:
Technical Parameters: Ever Power vs. Japanese Counterparts
Al revisar Especificaciones técnicas de la máquina de moldeo por inyección-soplado de un solo paso, equipment compatibility is vital. Our machines are designed to perfectly accept existing standard Japanese molds, offering a seamless and economical upgrade path.
| Especificación | Ever Power EPY250-V4 | ASB-70DPH (Ref.) | Ever Power EPY200-V4 | Aoki 250 (Ref.) |
|---|---|---|---|---|
| Mold Compatibility | 100% Compatible | Original | 100% Compatible | Original |
| Machine Stations | 4-Station | 4-Station | 3-Station | 3-Station |
| Fuerza de sujeción por inyección | 300 kN | 294 KN | 250 KN | 245 KN |
| Sistema de transmisión | Advanced Servo | Hydraulic/Servo | Advanced Servo | Hydraulic |
Composición del equipo y tecnologías clave
1. Sistema de inyección con diseño de tornillo patentado
The injection system relies on a high-precision servo-driven unit. Most importantly, it is equipped with a patented specialized screw design and barrel that guarantees the flawlessly uniform plasticization of the melt—crucial for clear PETG and PC materials.
- Sistema de control de temperatura de alta precisión (exactitud de ±1℃).
- Servo-driven injection unit for ultra-fast response and repeatability.
- Sistema de control del espesor de pared de la preforma mediante ajustes axiales/radiales.
2. Sistema de calefacción inteligente
Features advanced heating rings or water/oil temp control monitored by real-time sensors.
- Zoned heating control for targeted preform temperature mapping.
- Non-contact temperature measurement protects the preform surface.
- Adaptive heating power automatically optimizes based on production speed.
3. Sistema de moldeo por soplado y estirado
Comprises precision stretch rods, blow cores, and high-pressure air inputs.
- Stretching speeds up to 400mm/s with a position precision of ±0.1mm.
- Independent pressure regulating valves stabilize air within ±0.05MPa.
- Stretch-blow synchronization ensures perfect radial and axial expansion.
4. Centralized Smart Control System
The independent PLC control system serves as the brain of the machine.
- Multi-axis motion control ensures absolute synchronization of all stations.
- Optimización adaptativa de los parámetros del proceso basada en la retroalimentación de la producción en tiempo real.
- Remote monitoring and fault diagnosis systems maximize operational uptime.
Material Applications and Product Portfolio
Our equipment processes a vast array of thermoplastic materials:
- PETG: Unrivaled viscosity, glass-like clarity, and chemical resistance. Essential for luxury cosmetics (shampoos, lip gloss, thick-walled jars).
- MASCOTA: Highly transparent with excellent barrier properties. Perfect for beverage bottles and food containers.
- PÁGINAS: Temperature resistance over 120℃. The top choice for hot-fill juices and tea bottles.
- PC / Tritan: High strength and thermal stability. Commonly processed on our machine to produce premium baby feeding bottles and sports cups.
Capable of Producing:
- Daily chemical and premium cosmetic containers.
- Round or irregular beverage bottles (from 5ml to 20L).
- Food packaging containers (edible oil, spices).
- Medical and pharmaceutical packaging (pill bottles, oral liquids).
The Critical Role of Oil-Free Screw Air Compressors
For a high-precision ISBM process—especially when manufacturing premium PETG cosmetic jars or pharmaceutical bottles—the quality of compressed air is paramount. During the stretch blow molding phase, high-pressure air directly interacts with the interior of the hot preform.
Using standard lubricated compressors introduces microscopic oil vapor and moisture. This instantly ruins the transparency of thick-walled containers, causing cloudiness, structural weaknesses, and violating strict sanitary regulations. We provide specialized, 100% oil-free screw air compressors perfectly matched to our machines. These compressors guarantee a stable, pure, and dry high-pressure air supply. This prevents pneumatic valve clogging, drastically reduces maintenance needs, and ensures that every container exits the machine with flawless, glass-like clarity.
What Our Global Partners Are Saying
“Manufacturing heavy-wall PETG cosmetic jars is notoriously difficult due to stress whitening. Ever Power’s 4-station machine solved this. The conditioning station equalizes the preform temperature perfectly. Our jars look identical to high-end glass, but with the durability of plastic.”
— Technical Director, LuxePack Cosmetics, France
“As a reliable Proveedor de máquinas de moldeo por soplado de un solo paso, they provided a machine that was completely compatible with our existing Japanese molds. The servo-driven injection unit is incredibly precise, and we’ve seen a noticeable drop in our energy overhead.”
— Operations Manager, Custom Plastics Mfg., USA
“We produce high-end skincare packaging. The zero-flash guarantee of the single-stage process drastically reduced our post-processing labor. The automation integration means our production line runs 24/7 with minimal operator intervention.”
— Plant Head, Seoul Skincare Solutions, South Korea
Preguntas frecuentes
1. Why is a 4-station machine specifically recommended for PETG cosmetic jars?
PETG is highly sensitive to temperature variations. The 4-station machine features a dedicated “conditioning” station that stabilizes and equalizes the preform’s temperature profile before stretching. This prevents stress-whitening and guarantees the thick walls achieve a flawless, glass-like transparency.
2. Can I run my existing ASB-70DPH molds on your EPY250-V4 machine?
Yes. Our machines are engineered to be structurally compatible with standard Japanese models. You can seamlessly install your ASB-70DPH molds directly into our EPY250-V4 without any expensive mold modifications.
3. Does the single-stage process really save 40% in energy?
Absolutely. Traditional two-stage processes require cooling the preform, storing it, and then completely reheating it in an energy-intensive oven. Our process blows the bottle while the preform retains the latent heat from the injection stage, bypassing the reheating phase and drastically cutting electricity consumption.
4. What happens if we experience technical issues? Is remote support available?
Yes, our advanced PLC control system includes remote monitoring and fault diagnostic capabilities. Our engineers can access machine data remotely to troubleshoot issues instantly. Additionally, because we use globally recognized components (like Yaskawa servos), finding replacement parts locally is incredibly easy.
5. How long does a mold changeover typically take?
Thanks to our quick mold changeover technology and optimized system design, a trained operator can complete a full mold change in 60 minutes or less, significantly minimizing downtime when switching between different cosmetic jar designs.
