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Low-Speed 40m/min Haul-Off for Gentle Take-Off – PP Line
Product Overview
In PP strapping production, the nascent tape after extrusion is not yet fully cooled and set, requiring low-speed, gentle haul-off to avoid stretching deformation. This production line is equipped with a low-speed three-roller haul-off unit with φ268mm roller diameter, 450mm face width, chrome-plated and polished surface (hardness HRC58-60), haul-off speed range 0-40 m/min, adjustment accuracy ±1 m/min, and 5.5KW motor power. Located after the first cooling tank and before the extension box, this unit gently pulls the tape from the water tank, providing a dimensionally stable, stress-free nascent tape for subsequent high-ratio stretching.
Technical Specifications
Parameter
Value
Roller diameter
φ268 mm
Face width
450 mm
Surface treatment
Chrome-plated & polished
Surface hardness
HRC 58-60
Haul-off speed range
0 - 40 m/min
Speed adjustment accuracy
±1 m/min
Motor power
5.5 KW
Installation position
After first cooling tank, before extension box
Key Features
Low speed: 0-40 m/min range for gentle take-off of nascent tape
High precision speed control: ±1 m/min for accurate matching with downstream units
Chrome-plated rollers: Smooth, wear-resistant surface does not damage tape
High hardness: HRC58-60 maintains precision over long use
Large roller diameter: φ268mm provides sufficient wrap angle to prevent slipping
Gentle traction: Avoids stretching deformation of not-fully-cooled tape
Stable output: Provides dimensionally stable tape for the extension box
Easy maintenance: Chrome surface resists sticking, easy to clean
Linkage ready: Speed signal synchronized with main drive
Low noise: Precision bearings and gear drive for quiet operation
Frequently Asked Questions
Q: Why is a low-speed haul-off unit needed? Can't we use high-speed directly?
A: The nascent tape after extrusion is not yet fully cooled and set. Direct high-speed haul-off would cause stretching deformation or even breakage. Low-speed haul-off gently pulls the tape from the water tank, ensuring dimensional stability and preparing it for subsequent high-ratio stretching.
Q: What is the practical significance of ±1 m/min speed adjustment accuracy?
A: It ensures speed matching between the low-speed unit, extrusion speed, and subsequent high-speed units, avoiding tension fluctuations caused by speed mismatches, thus preventing unintended stretching or accumulation of the tape.
Q: What are the advantages of chrome-plated rollers over ordinary rubber rollers?
A: Chrome-plated rollers have an extremely hard, smooth surface with very high wear resistance. They do not age or stick to foreign matter like rubber rollers, are easy to clean, and cause no surface damage to the tape.
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...
