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PP Strapping Band Extrusion Line – Precise Tension
PP Strapping Band Extrusion Line – Precise Tension
Specifications
Place of Origin :
CHINA
Tension adjustment :
Real-time automatic
MOQ :
1SET
Supply Ability :
1 SET
Delivery Time :
90DAYS
Low power :
5.5 KW
Core value :
Precise tension control
Low speed :
0-40 m/min
Roller hardness :
HRC58-60
Applicable process :
Full line
Packaging Details :
FCL
Control method :
Closed-loop linkage
High power :
15 KW
High speed :
0-250 m/min
Speed accuracy :
±1 m/min
Brand Name :
CHUQI
Description
PP Strapping Band Extrusion Line – Precise Tension
Precision Tension Control System

Tension control is a critical factor affecting thickness uniformity and final winding quality in PP strapping production. This production line features a multi-stage haul-off system consisting of a low-speed three-roller haul-off unit (0-40 m/min, 5.5KW) and a high-speed five-roller haul-off unit (0-250 m/min, 15KW). The low-speed unit stabilizes the nascent tape after extrusion, while the high-speed units provide precise tension adjustment after stretching and setting. Multi-stage haul-off combined with closed-loop speed control (accuracy ±1 m/min) ensures constant, fluctuation-free tension across all sections. Rollers are chrome-plated and polished with HRC58-60 hardness, wear-resistant and non-damaging to the tape.

Technical Specifications
Haul-off Unit Speed Range Motor Power Rollers Installation Position
Low-speed 3-roller 0-40 m/min 5.5 KW 3 After first tank, before extension box
High-speed 5-roller 0-250 m/min 15 KW 5 After extension box, before embosser
High-speed 3-roller (multiple) 0-250 m/min 5.5 KW 3 After oven, after secondary tank, etc.
Key Features & Benefits
  • Multi-stage haul-off: Low-speed + high-speed combination covers full-line tension control
  • Low-speed unit: Gentle traction of nascent tape prevents stretching deformation
  • High-speed units: Precise tension control after stretching and setting
  • Speed accuracy: ±1 m/min for full-line closed-loop synchronization
  • Chrome-plated rollers: HRC58-60 hardness, wear-resistant and non-damaging
  • Stable tension: Multi-stage traction eliminates cumulative tension fluctuations
  • Fast response: Inverter/servo drives for instant tension adjustment
  • Reduced scrap: Stable tension ensures uniform thickness, reducing dimensional rejections
  • High-speed compatible: High-speed units support 250 m/min line speed
  • Quality enhancement: Constant tension ensures consistent product performance
Technical Questions & Answers
Why is a multi-stage haul-off system needed?
The low-speed unit stabilizes the nascent tape after extrusion and before stretching, preventing accidental deformation. The high-speed units transport the stretched and set finished tape. Stage-specific control optimizes tension matching at each section.
How is speed synchronization ensured among multiple haul-off units?
The entire line uses PLC closed-loop coordinated control. The operator sets the main line speed on the touch screen, and the system automatically calculates the speed ratios for each haul-off unit, precisely executed via inverters. Individual units can be fine-tuned independently.
What are the effects of tension fluctuation?
Tension fluctuation causes uneven thickness, uneven stretching, and ultimately affects strapping strength and roll shape quality. In severe cases, it may cause breakage or inconsistent winding tightness.
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PP Strapping Band Extrusion Line – Precise Tension

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Product Detail
Place of Origin :
CHINA
Tension adjustment :
Real-time automatic
MOQ :
1SET
Supply Ability :
1 SET
Delivery Time :
90DAYS
Low power :
5.5 KW
Contact Supplier
PP Strapping Band Extrusion Line – Precise Tension

Jiaxing Chuanqi Machinery Equipment Co., Ltd.

Verified Supplier
3 Years
zhejiang, jiaxing
Since 2012
Business Type :
Manufacturer
Main Products :
PET Strap Winder, PP Strap Winder, Paper Strapping Production Line
Total Annual :
5000000-8000000
Employee Number :
50~60
Certification Level :
Verified Supplier
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