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Jiaxing Chuanqi Machinery Equipment Co., Ltd.
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Biaxial Brilliance High-Strength PET Strapping Line High Efficiency

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Biaxial Brilliance High-Strength PET Strapping Line High Efficiency

Brand Name : CHUQI

Place of Origin : CHINA

MOQ : 1set

Payment Terms : T/T

Supply Ability : 100sets

Delivery Time : 60days

Packaging Details : wooden box

Strengthening Process : Sequential Biaxial Stretching

MD Draw Ratio Range : 3.0-8.0 times

TD Draw Ratio Range : 2.0-5.0 times

Key Equipment : Multi-Roll MD Stretcher + Rail Tenter Frame

Performance Outcome : High Strength (≥600MPa)

Product Feature : Low Elongation, Dimensionally Stable

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Biaxial Brilliance: High-Strength PET Strapping Line
Advanced Biaxial Stretching Technology
Our high-strength PET strapping production line utilizes advanced biaxial stretching technology to achieve exceptional material performance. Through precise molecular orientation in both machine direction (MD) and transverse direction (TD), we transform PET material into high-performance strapping with tensile strength exceeding 600 MPa, excellent flexibility, and minimal rebound.
Core Process Features
  • Sequential Biaxial Stretching: MD stretching followed by TD stretching for optimal molecular alignment and crystallinity
  • Machine Direction System: Multi-roller preheating with precise ratio stretching above glass transition temperature
  • Transverse Direction System: Rail-type tenter frame with adjustable width and heat-setting zone
  • Synchronization Control: Speed interlock between MD and TD systems ensures smooth tension transition
  • Process Flexibility: Independent adjustment of MD and TD draw ratios for customized product specifications
Technical Specifications
Parameter Category Parameter Item Specification / Description
Machine Direction Stretch Number of Stretch Rolls 8-12 rolls (preheat, stretch, set)
MD Draw Ratio Range 3.0 - 8.0 times (adjustable)
Preheat Roll Temperature Control Zoned, up to 120°C
Transverse Direction Stretch Stretching Method Rail & Clip Type Tenter Frame
TD Draw Ratio Range 2.0 - 5.0 times (adjustable)
Heating Method Infrared Tubes or Hot Air Circulation
Product Performance Final Product Tensile Strength ≥ 600 MPa (depends on material & process)
Product Characteristics Product Features High stiffness, low elongation, dimensionally stable
Frequently Asked Questions
How to choose the biaxial draw ratios? What is their impact on the final product?
Draw ratio is the key process parameter determining product strength. Higher draw ratios result in greater molecular orientation and increased longitudinal tensile strength, though transverse strength may be relatively lower. Products become thinner and stiffer with higher ratios. Our production line offers wide adjustability and includes process guidance to help optimize parameters based on your specific thickness, width, and performance requirements.
Breakage or uneven thickness often occurs during stretching. How is this resolved?
Breakage typically relates to material quality issues (moisture, impurities), uneven preheating, or improper draw ratio settings. Our system prevents these issues through proper material drying, uniform temperature control, and smooth tension transition. Uneven thickness primarily stems from initial extruded sheet inconsistencies, which our integrated system addresses through precise extrusion and die control from source to final process.

Product Tags:

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