Packaging Industry Precision In Quadruplicate 1-Out-4 PP Extrusion System
Price:
Negotiable
MOQ:
1SET
Delivery Time:
60DAYS
Brand:
CHUQI
Product Description
Precision in Quadruplicate: The 1-Out-4 PP Extrusion System
Product Introduction
Producing four straps simultaneously presents less challenge than ensuring they maintain precision and consistency as perfect replicas. Our system places precision at the core of its design. The precision-machined, integrally formed flow diverging die head features internal channels optimized through computational fluid dynamics simulation, ensuring equal pressure and flow loss during melt distribution to eliminate uneven feeding at the source. Combined with the extruder's stable melt delivery (melt pump optional) and full-line closed-loop temperature control, the system achieves highly uniform width, thickness, weight, and mechanical properties across all four strands (tolerance ≤ ±0.05mm). This represents not just technological excellence but a firm commitment to upholding your brand's quality reputation.
Main Specifications
Die Head Precision Assurance: The flow diverging die head is constructed from high-quality die steel with CNC precision machining; flow channel surfaces are polished to mirror finish to reduce melt stagnation and degradation. Key dimensional tolerances exceed national standards.
Homogenization Design: The die head incorporates multi-stage buffer and distribution chambers to effectively homogenize melt pressure, ensuring consistent melt state (viscosity, temperature) at all four die lips.
Process Stability: The extruder's 7-zone temperature control with ±1°C accuracy provides the foundation for uniform and stable melt. Full-line speed synchronization control prevents thickness variations caused by haul-off differences.
Inspection & Feedback: Optional online diameter or thickness gauges enable real-time monitoring of all four strands; data supports production quality traceability and process fine-tuning.
Technical Parameters
| Parameter Category | Parameter Item | Specification / Description |
|---|---|---|
| Die Head Precision | Flow Channel Machining Precision | Ra ≤ 0.2 μm |
| Die Head Precision | Outlet Spacing Error | ≤ ±0.03 mm |
| Product Consistency | Inter-Strand Width Tolerance | ≤ ±0.05 mm |
| Product Consistency | Inter-Strand Thickness Tolerance | ≤ ±0.01 mm (under same process) |
| Product Consistency | Weight Consistency | Inter-Strand Variation ≤ ±1.5% |
| Process Stability | Extrusion Melt Pressure Fluctuation | ≤ ±1.5% (at steady state) |
| Process Stability | Temperature Control Accuracy | ±1.0°C |
| Quality Target | CpK Value (Width) | ≥ 1.33 (Target) |
Frequently Asked Questions
How do you ensure the four straps have exactly the same thickness? Won't the center strap be thicker and the sides thinner due to flow division?
This is precisely the core technology of our die head design. Traditional "T-type" or "coat-hanger" flow distribution can indeed cause uneven flow between the center and ends. We employ a "heart-shaped" or "spiral" flow distribution structure optimized via CFD (Computational Fluid Dynamics), combined with internal flow resistance adjustment devices (such as chokes or adjustment bolts) that allow fine-tuning of each flow channel's resistance. During equipment commissioning, we calibrate the flow using standard material, adjusting these devices to ensure completely equal output speeds from all four outlets, fundamentally solving thickness unevenness.
Will the die head precision degrade over long-term use, leading to poor product consistency?
The long-term precision of a die head depends on material, wear, and maintenance. Our die head uses high-hardness, corrosion-resistant die steel and undergoes heat treatment for exceptional wear resistance. Under normal use, precision can be maintained for years. We recommend regular preventive maintenance, including cleaning the die lips and inspecting flow channel surfaces. We also offer die head refurbishment and re-polishing services. Consistency during production relies more on stable process control (temperature, speed), which our system strongly guarantees.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Jiaxing Chuanqi Machinery Equipment Co., Ltd.
Location
Yucheng town, Haiyan County, Jiaxing City, Zhejiang Province, China
Contact Person
Alex