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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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
5000000-8000000
Employee Number:
50~60
Ecer Certification：
Verified Supplier
Jiaxing Chuanqi Machinery Equipment Co., Ltd. is a high-tech enterprise that specializied in the research and develop and manufacture of Paper strap production line, PP box strap production line and all kinds of automatic winder and PP PET strapping.
Vision: Committed to becoming t... Jiaxing Chuanqi Machinery Equipment Co., Ltd. is a high-tech enterprise that specializied in the research and develop and manufacture of Paper strap production line, PP box strap production line and all kinds of automatic winder and PP PET strapping.
Vision: Committed to becoming t...
