Description
Comprehensive Overview of the High-Tonnage Blow Molding Machine
The One-step injection stretch blow molding machine (four-station) Y250-V4 represents the pinnacle of high-tonnage plastic container manufacturing. Engineered as a remarkably robust, industrial-grade blow molding machine, it seamlessly executes raw material melting, preform injection, precise thermal conditioning, and biaxial stretch blowing within a single, uninterrupted cycle. This eliminates the need to reheat cold preforms, preserving the ultimate optical clarity of the plastic.
Constructed upon a massive ~15.5-ton heavy-duty frame, this flagship One-Step Blow Molding Machine is designed to absorb extreme mechanical stresses during continuous 24/7 operations. By delivering a staggering 400KN of injection clamping force alongside 300KN of blowing clamping force, it provides the ultimate platform for transforming PET, PETG, PC, and Tritan into visually stunning, extremely thick-walled, and structurally flawless containers for luxury cosmetics and pharmaceutical applications.

Detailed Specifications of the Automatic Plastic Bottle Blowing Machine
| Parameter Category | Unit | Specification (Model: Y250-V4) |
|---|---|---|
| Applicable Raw Materials | – | PET / PETG / PC / PP / Tritan |
| Max. Injection Clamping Force | KN | 400 |
| Max. Blowing Clamping Force | KN | 300 |
| Screw Diameter Options | MM | 50 / 60 / 65 |
| Maximum Product Volume | ML | Up to 2500ml (Single Cavity) |
| Max. Production Cavities | PCS | Up to 14 Cavities |
| Total Machine Weight | Tons | ~ 15.5 Tons (Heavy-Duty Frame) |
Advanced 4-Station Kinematics of the ISBM Machine
The Y250-V4 maximizes container quality by leveraging a highly synchronized, servo-driven 4-station rotary indexing system. This additional 4th station is the secret to manufacturing highly asymmetrical or extremely thick-walled shapes:
- Station 1: High-Pressure Preform Injection: Driven by energy-saving nano-infrared heaters, resin is rapidly plasticized and injected into the preform mold under an immense 400KN force. This prevents shrinkage and guarantees exact preform weight.
- Station 2: Precision Temperature Conditioning: (The 4-Station Advantage) The still-warm preform enters a dedicated conditioning pot. Here, specialized heating/cooling cores and cavities adjust the preform’s internal and external thermal profile. This corrects any temperature imbalances, enabling perfect stretchability for non-round, flat, or oval bottles.
- Station 3: Biaxial Stretch Blow Molding: Highly accurate servo-driven stretch rods descend to orient the preform axially, while high-pressure air expands it radially. The 300KN blowing clamp firmly seals the mold, guaranteeing an absolute zero-flash parting line.
- Station 4: Automated Ejection: The fully cooled, glass-like container is gently stripped from the core and dropped onto a conveyor belt. This hands-free extraction process entirely eliminates human contamination and surface scratching.

Custom Precision ISBM Molds & Advanced Tooling Engineering
A high-tonnage machine requires equally superior tooling to unlock its full potential. The Y250-V4 is expertly engineered to accommodate highly complex, multi-cavity precision ISBM molds. Our comprehensive engineering solutions extend beyond the machine to deliver meticulously crafted hot-runner tooling:
- Premium Swedish Steel: Core components and cavities are CNC-machined from S136 or Stavax stainless steel, hardened to withstand millions of extreme-pressure cycles without deformation or wear.
- Valve-Gate Hot Runner Systems: Employs highly advanced hot runner controllers with needle valve gates. This entirely eliminates stringing or drooling at the injection point, ensuring a perfectly smooth, crystal-clear bottom on every bottle.
- Conformal Cooling Channels: By utilizing deep, 3D conformal cooling waterways surrounding the cavities, heat is dissipated exponentially faster, drastically reducing the overall cycle time and boosting your daily yield.

Scale Your Production with Expert Turnkey Solutions
Whether you are manufacturing luxury cosmetics with glass-like thick walls or high-volume pharmaceutical packaging, upgrading to a state-of-the-art One-Step Blow Molding Machine guarantees unparalleled precision and a rapid return on investment. We provide true end-to-end services, from facility layout and mold design to final installation.
Ready to dramatically lower your defect rates and slash power consumption? Consult our expert engineers today for a tailored quotation on this heavy-duty ISBM machine and elevate your packaging quality to global standards.
Industrial Applications for the Multi-Cavity Blow Molding Machine
Leveraging its immense 400KN injection clamping force and large mold platen, the Y250-V4 excels across various high-demand sectors:
- Premium Cosmetics & Personal Care: Masterfully produces ultra-thick-walled PETG cream jars, asymmetrical perfume bottles, and lotion dispensers that rival the luxury feel, weight, and clarity of solid glass.
- Pharmaceutical Packaging: Manufactures highly precise, multi-cavity medical dropper bottles, syrup containers, and pill vials in a highly clean, oil-free environment.
- Food & Premium Beverage: Capable of creating large-format BPA-free Tritan water pitchers, sports bottles, or high-volume wide-mouth spice jars (up to 2500ml).

10 Frequently Asked Questions About the Heavy-Duty Blow Molding Equipment
Q1: What materials can the Y250-V4 process efficiently?
A: The machine is specifically optimized for highly demanding engineering plastics, including PET, PETG, PC (Polycarbonate), Tritan, and even high-clarity PP.
Q2: How many cavities can this machine support for mass production?
A: For smaller format bottles (e.g., 20ml hotel amenities or eye droppers), the machine’s immense clamping force easily supports high-output molds with up to 14 cavities.
Q3: What is the primary advantage of the 4-station design over a 3-station machine?
A: The additional temperature conditioning station adjusts the preform’s core and surface heat before blowing. This is absolutely critical for producing oval, square, or exceptionally thick-walled containers without thin spots or uneven stretching.
Q4: Do you design and provide custom precision molds along with the machine?
A: Yes, we offer full turnkey solutions. Our in-house engineering team designs and manufactures S136 stainless steel, valve-gated hot runner molds tailored exactly to your 3D container designs.
Q5: What are the exact clamping forces, and why are they so high?
A: The machine boasts 400KN for injection clamping and 300KN for blowing. These massive forces are necessary to ensure that large, multi-cavity molds stay hermetically sealed under high injection pressures, completely eliminating flash.
Q6: How does this heavy-duty machine achieve energy efficiency?
A: It achieves exceptional energy savings by utilizing multiple servo-driven hydraulic pump systems. The servo motors provide maximum power only during dynamic movements and drop to near-zero electricity consumption during static cooling phases.
Q7: Is this machine suitable for manufacturing thick-walled cosmetic jars?
A: Yes, it is the perfect solution. The one-step process prevents surface scratching, and the high injection pressure allows for the dense packing of heavy preforms, resulting in jars that closely resemble luxury glass.
Q8: What is the maximum container volume it can blow?
A: Operating in a single-cavity mold configuration, the Y250-V4 is capable of producing massive containers with volumes up to 2500ml.
Q9: Are the machine’s critical components sourced globally?
A: Yes, to guarantee decades of reliability, we integrate world-class components including Japanese Yaskawa servos, Taiwanese YUKEN hydraulic valves, and American Parker high-pressure pneumatics.
Q10: What kind of training and installation support do you provide?
A: We offer comprehensive Factory Acceptance Testing (FAT) prior to shipping, followed by onsite installation, mechanical commissioning, and thorough operational training for your factory staff.




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