For modern manufacturing facilities, floor space is a premium asset. High real estate costs and the need for lean manufacturing have driven the demand for highly integrated, space-saving equipment. At Ever Power, our compact one step injection blow molding machine for small factories is engineered to solve this exact challenge. By integrating the entire bottle-making process into a single, highly efficient unit, we help manufacturers drastically reduce their facility footprint while maintaining world-class production standards.
One-Step Injection Stretch Blow Molding (ISBM) is a highly efficient plastic container forming technology. It is widely utilized to produce high-precision, demanding hollow plastic products such as baby bottles, water cups, pharmaceutical packaging, crafts, and cosmetic containers. Our machinery seamlessly processes diverse materials including PET, PETG, PP, PC, Tritan, PS, ABS, and PLA.
The Streamlined Four-Step Process
The core characteristic of our technology is that injection, stretching, and blow molding are completed sequentially within the same equipment, eliminating the need for intermediate storage or reheating. The continuous process flow is as follows:
- 1. Injection: Precise injection molding of the plastic preform.
- 2. Conditioning: Preform tail cutting or targeted heat preservation.
- 3. Stretch Blow Moulding: Biaxial stretching and high-pressure blowing.
- 4. Bottle Take-out: Automated, precise removal of the finished container.
Core Advantages for Manufacturers
- High Efficiency & Energy Saving: There is no need for secondary heating of the preform. By directly utilizing the residual temperature from the injection stage, energy consumption is reduced by approximately 40%.
- Superior Performance: Biaxial stretching directs the material molecules, significantly elevating the product’s pressure resistance, gas barrier properties, and optical transparency.
- Precision & Stability: Full-process automation control minimizes human intervention and error, making it highly suitable for large-scale, automated filling line operations.
- High Material Utilization: The process produces minimal waste scrap, offering a highly environmentally friendly and low-cost solution.
- Equipment Benefits: Beyond the minimal floor space requirement, the machinery boasts low energy draw, reduced labor costs, highly accessible pricing, and robust operational stability.
Technical Parameter Comparison
How does Ever Power stack up against standard industry models from Japan and Europe? The following table highlights our competitive edge.
| Parameter / Feature | Ever Power Compact ISBM | Japanese/European Standard Models |
|---|---|---|
| Space Utilization | Highly Compact / Integrated | Standard Footprint |
| Temperature Control Accuracy | ±1℃ | ±1℃ to ±2℃ |
| Energy Savings | ~40% reduction (Direct heat transfer) | Standard Energy Consumption |
| Mold Changeover Time | ≤ 60 minutes | 60 – 120 minutes |
| Initial Capital Investment | Highly Competitive | High Premium |
Equipment Composition & Key Technologies
Our machinery relies on five integrated primary systems to deliver flawless performance.
1. Injection System
The injection system adopts a high-precision servo-driven unit equipped with a highly specialized barrel and screw. We take great pride in our patented screw design, which is meticulously engineered to ensure the absolute uniform plasticization of the melt, preventing any shear degradation or yellowing of clear plastics.
Ever Power’s patented screw design for optimal melt homogenization.
- High-precision temperature control system (accuracy ±1℃).
- Servo-driven injection unit (rapid response, high repeatability).
- Preform wall thickness control system (optimizes thickness via axial/radial adjustments).
2. Heating System
Utilizes advanced heating coils or fluid (water/oil) temperature methods, paired with live sensors.
- Zoned heating control enables precise temperature adjustments across different sections of the preform.
- Non-contact temperature measurement prevents any surface damage to the preform.
- Adaptive heating power automatically optimizes parameters based on current production speeds.
3. Stretch Blow System
Consists of high-strength stretch rods, blow cores, and a high-pressure air source.
- Advanced stretching mechanism (speeds up to 400mm/s, positional accuracy ±0.1mm).
- Independent pressure regulating valve system strictly controls pressure fluctuations to within ±0.05MPa.
- Stretch-blow synchronization control guarantees perfect coordination during expansion.
4. Mold System
We typically employ a highly efficient rotary multi-station structure. Depending on product complexity, clients can choose between 3-station and 4-station configurations.
3-Station Mold: Comprises Injection, Stretch-Blow, and Ejection stations. Ideal for standard bottle geometries.
4-Station Mold: Includes an additional temperature conditioning station between injection and blowing. Essential for complex shapes like thick-walled cosmetic jars.
- High-precision mold processing (cavity surface roughness Ra≤0.8μm).
- Efficient cooling systems utilizing optimized water channels (shortens cooling time by 30%).
- Fast mold changeover technology allows for complete swaps in ≤60 minutes.
The reliability of our molds is backed by meticulous engineering, down to the precision wiring connections demonstrated below:
In addition to machinery, Ever Power is a premier manufacturer of high-quality, custom mold products ready to be integrated into your line.
5. Control System
As an advanced integrated blow molding machine, it features an independent control system for centralized management. This includes multi-axis motion control for precise station synchronization, adaptive process parameter optimization based on live production data, and a remote monitoring and fault diagnosis system to maximize your equipment’s operational uptime.
Material Application & Diverse Product Capabilities
Our robust one step bottle blowing equipment processes a wide array of thermoplastics to support varied industries:
- PET (Polyethylene Terephthalate): Extremely high transparency, excellent barrier properties, and highly recyclable. Perfect for beverage bottles and food jars.
- PETG: Ideal for daily chemical containers and cosmetics (shampoo, body wash, mascara tubes, lip gloss, and thick-walled jars). It boasts superior viscosity, transparency, color capability, chemical resistance, and excellent anti-stress whitening.
- PP (Polypropylene): High temperature resistance (over 120℃) and chemical corrosion resistance. Best suited for hot-fill containers like fruit juice or tea bottles.
- PC (Polycarbonate): Known for high strength, transparency, and outstanding heat resistance. Widely used for baby feeding bottles and sports water cups.
Supported Product Types Include:
- Round or uniquely shaped beverage bottles (capacities from 5ml up to 20L).
- Pharmaceutical packaging (medicine bottles, oral liquid vials).
- Food packaging containers (cooking oil jugs, condiment bottles).
- Daily chemical and cosmetic containers (laundry detergent jugs, high-end cosmetic packaging).
The Crucial Role of the Blow Molding Air Compressor
When operating a highly precise ISBM machine, the quality of your compressed air is just as critical as the quality of your raw plastic resin. Ever Power supplies matching, premium oil-free screw air compressors to complete your production line. Why is this auxiliary equipment so vital?
The stretch blow molding process relies heavily on high-pressure air to rapidly expand the heated preform against the mold walls. If standard, untreated air is used, trace amounts of oil, moisture, or dust can be injected directly into the pristine plastic. For clear materials like PET and PETG, this instantly causes cloudiness, structural weaknesses, and contamination—a fatal flaw for cosmetic, medical, or food-grade containers. Our dedicated compressors deliver a continuous, stable supply of 100% oil-free and deeply dried air. Furthermore, maintaining an unwavering high-pressure flow (with fluctuations held strictly under ±0.05MPa) ensures every bottle achieves exact dimensional accuracy and uniform wall thickness.
Real Customer Feedback
“Operating a facility in a dense industrial park in Tokyo means floor space is our most expensive asset. Ever Power’s compact machinery allowed us to double our cosmetic bottle output without expanding our footprint. The transparency and wall distribution of the PETG bottles are phenomenal.”
— Operations Director, Cosmetics Manufacturer, Japan
“For our pharmaceutical packaging line, maintaining cleanroom standard square footage is highly costly. The integrated nature of this equipment significantly reduced our required cleanroom space compared to two-stage systems. The automated process ensures zero human contact with the medicine bottles.”
— Plant Manager, Pharmaceutical Packaging, Switzerland
“We produce premium Tritan water bottles and needed a solution that was both space-saving and energy-efficient. The 40% energy savings on the heating cycle drastically lowered our utility bills in North America, and the equipment’s uptime is outstanding.”
— Production Lead, Consumer Goods, Canada
Frequently Asked Questions (FAQ)
Q1: How much factory floor space does the one-step ISBM machine actually save?
A1: Compared to a traditional two-stage process, our compact one-step machine saves up to 50% of floor space. It eliminates the need for a standalone preform injection machine, massive preform storage bins, preform unscramblers, and a lengthy secondary reheating oven.
Q2: Is the ≤60-minute quick mold changeover realistic for small batch production?
A2: Absolutely. The machine’s accessible design and our optimized mold clamping systems mean an experienced operator can fully swap out the injection and blow molds within an hour, making it highly lucrative for manufacturers running multiple SKUs of cosmetic or pharmaceutical bottles.
Q3: Can this equipment handle thick-walled cosmetic jars without internal bubbling?
A3: Yes. By utilizing PETG material combined with our 4-station mold configuration (which includes a dedicated temperature conditioning station), we ensure the thick walls are perfectly stabilized before blowing, eliminating bubbles and stress whitening.
Q4: What routine maintenance is required for the servo-driven systems?
A4: Our servo systems are designed for low maintenance. Daily checks involve simple visual inspections and verifying the automated lubrication system levels. In the event of an anomaly, the built-in remote fault diagnosis system will instantly alert operators and pinpoint the exact issue.
Q5: Why is the patented injection screw so critical to the final bottle quality?
A5: Standard screws can create inconsistent shear heating, leading to degraded plastic melt or yellowing in clear resins. Our patented screw geometry ensures gentle, completely uniform plasticization, which translates directly to flawless optical clarity and superior mechanical strength in the final bottle.
