In today’s fast-paced packaging industry, manufacturers are constantly seeking ways to streamline production without compromising quality. The traditional two-stage process—injecting preforms, storing them, and then reheating to blow—is often space-consuming and energy-intensive. Ever Power presents a comprehensive solution with our one step PET blow molding line with automation.
One-Step Injection Stretch Blow Molding (ISBM) is an advanced plastic container forming technology where the three critical stages—injection, stretching, and blow molding—are completed sequentially within a single, highly integrated equipment unit. This seamless transition from raw resin directly to the finished product is ideal for manufacturing high-precision hollow containers from PET, PETG, PP, PC, Tritan, PS, ABS, and PLA.
The Continuous 4-Stage Workflow
By eliminating intermediate cooling and reheating stages, our technology drastically improves production stability. The automated flow consists of:
- 1. Injection: Molten plastic is precisely injected to form the preform.
- 2. Conditioning: Preform tail cutting or temperature stabilization.
- 3. Stretch Blow Moulding: Biaxial stretching and blowing to final shape.
- 4. Bottle Take-out: Automatic ejection of the flawless container.
Core Performance Advantages
Investing in an Ever Power single stage injection stretch blow molding machine yields significant operational benefits:
- Hög effektivitet och energibesparing: Bypassing the need to reheat cold preforms allows the process to utilize the residual heat from injection, cutting energy consumption by approximately 40%.
- Superior Product Quality: Biaxial stretching aligns molecular structures, significantly boosting the container’s structural strength, barrier properties, and glass-like transparency.
- High Precision & Stability: Full-process automation drastically reduces human error, ensuring exact dimensional consistency necessary for high-speed filling lines.
- High Material Utilization: The process minimizes waste, making it highly cost-effective and environmentally sound.
- Operational Efficiency: Manufacturers benefit from low power draw, reduced labor needs, a compact footprint, and competitive initial investment costs.
Technical Parameter Comparison
We invite you to compare Ever Power’s equipment specifications against standard equivalents from Japanese or European manufacturers.
| Technical Feature | Ever Power Machine | Japanese/European Standards |
|---|---|---|
| Energy Consumption | Highly Efficient (Direct Heat Transfer) | Standard |
| Temp Control Accuracy | ±1℃ | ±1℃ to ±2℃ |
| Mold Changeover | ≤ 60 minuter | 60 – 120 Minutes |
| Automation Level | Fully Integrated Process | Standard |
| Capital Investment | Cost-Effective / High ROI | Premium Priced |
Utrustningskomposition och nyckelteknologier
Our sophisticated ISBM blow molding machine lines are comprised of five highly synchronized systems.
1. Injection System
The core of material preparation, this system features a high-precision servo-driven unit. We utilize a highly specialized, patenterad skruvdesign tailored specifically for ISBM applications. This ensures thorough and uniform plasticization of the melt, preventing defects like un-melted particles or shear burning.
Ever Power’s patented screw design maximizes material homogenization.
- High-precision temperature control system (±1℃ accuracy).
- Servo-driven injection unit for rapid, highly repeatable responses.
- Preform wall thickness control system via precise axial or radial adjustments.
2. Värmesystem
Utilizing targeted heating rings or precise fluid temperature control.
- Zoned heating control for optimal temperature profiling along the preform’s length.
- Non-contact temperature measurement prevents surface damage.
- Adaptive heating power adjustment based on real-time production speed.
3. Stretch Blow System
Responsible for the final structural integrity and clarity of the bottle.
- Höghastighetssträckmekanism (upp till 400 mm/s) med extrem positionsnoggrannhet (±0,1 mm).
- Independent pressure regulating valves to keep high-pressure fluctuations within ±0.05MPa.
- Synchronized stretch-blow control for precise execution.
4. Mold System
We employ an efficient rotary multi-station structure. Based on product requirements, we offer both 3-station and 4-station configurations.
3-Station Mold: Comprises Injection, Stretch-Blow, and Ejection. Ideal for straightforward container designs.
4-Station Mold: Includes an extra Temperature Conditioning station before blowing, vital for complex shapes and challenging materials.
- High-precision mold cavity processing (surface roughness Ra≤0.8μm).
- Optimized cooling channel design (shortens cycle time by 30%).
- Fast mold changeover capability (≤60 minutes).
The exceptional build quality extends to the meticulous routing of our mold wiring:
Beyond machinery, Ever Power is a trusted supplier of custom, high-durability mold products tailored to your specific bottle designs.
5. Control System
The brains of the fully automated line. It features an independent multi-axis motion control system ensuring exact synchronization, adaptive process parameter optimization based on live data, and a robust remote monitoring and fault diagnosis system to maximize production uptime.
Material Applications & Finished Products
Our versatile equipment is engineered to process a wide variety of thermoplastic materials:
- SÄLLSKAPSDJUR: Exceptional transparency and barrier properties, widely used for beverage and food packaging.
- PETG: Outstanding transparency, chemical resistance, and anti-stress whitening. The perfect choice for high-end daily chemical containers, cosmetic bottles (shampoo, mascara, thick-walled jars).
- PP: Excellent heat resistance (over 120℃) and chemical resistance. Suitable for hot-fill juice and tea bottles.
- PC: High strength, transparency, and superior heat resistance. Ideal for baby bottles and sports cups.
Supported Finished Products:
- Round or customized irregular beverage bottles (5ml up to 20L).
- Pharmaceutical packaging (pill bottles, oral liquids).
- Food packaging (edible oil, condiments).
- Daily chemical packaging (cosmetics, detergents).
Essential Auxiliary Equipment: The Air Compressor
A fully automated line is only as reliable as its air supply. Ever Power provides matching oil-free screw air compressors specifically designed for the rigorous demands of blow molding.
In the final blow molding stage, high-pressure air directly contacts the inside of the heated plastic preform. If this air contains oil, moisture, or particulates, it will irreversibly cloud clear PET/PETG, cause structural weaknesses, or introduce hygiene risks. Our matching compressors guarantee a 100% oil-free, dry, and exceptionally stable pressure flow. This stability ensures that the machine’s precision pneumatic valves perform flawlessly, delivering exact wall thickness and immaculate clarity in every single automated cycle.
Real Customer Evaluations
“We implemented Ever Power’s fully automated ISBM line for our premium PETG cosmetic packaging. The elimination of human handling between injection and blowing has reduced our scrap rate to nearly zero. The clarity of the thick-walled jars is outstanding.”
— Production Manager, Cosmetics Brand, USA
“For our pharmaceutical facility in Mumbai, hygiene and precision are non-negotiable. This one-step machine produces our pill bottles in a highly controlled, enclosed process. The machine’s stability and dimensional accuracy have perfectly aligned with our high-speed capping lines.”
— Plant Director, Pharmaceutical Packaging, India
“The energy savings alone justified the upgrade. By using the latent heat from injection, we’ve cut our heating costs significantly compared to our old two-stage setup. It’s a highly robust and cost-effective piece of equipment for our beverage container line.”
— Operations Lead, Beverage Bottling, Brazil
Vanliga frågor (FAQ)
Q1: How does a one-step machine differ fundamentally from a two-stage process?
A1: A two-stage process uses two separate machines: one to inject preforms, which are stored and cooled, and a second machine to reheat and blow them. Our one-step machine integrates both processes into a continuous, automated flow, saving space, reducing energy (no secondary reheating), and minimizing preform scratching during storage.
Q2: What is the maximum volume capacity this automated line can produce?
A2: Our range of ISBM machines can be configured to produce containers from as small as 5ml up to large 20L containers, depending on the specific machine model and mold cavitation chosen for your production line.
Q3: How does the remote monitoring system benefit my factory?
A3: The remote fault diagnosis system allows our engineering team to connect securely to your machine’s control panel via the internet. If an issue arises, we can quickly diagnose parameter faults or sensor warnings in real-time, drastically reducing downtime and avoiding costly on-site service visits.
Q4: Are the molds difficult to change when switching bottle designs?
A4: Not at all. We utilize fast mold change technology. A trained operator can safely and completely swap out both the injection and blow molds in under 60 minutes, making the line highly flexible for varied production runs.
Q5: Why is PETG specifically recommended for cosmetic containers?
A5: PETG is ideal because it offers a highly premium, glass-like transparency while possessing superior chemical resistance against the oils and compounds often found in cosmetics. It also handles thick-walled designs beautifully without the stress whitening that can occur with standard PET.
