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1 or 2 Mandrels – Fast Manual Bobbin Swap PET Winder
Product Overview
The CQ800 semi-automatic PET strap winder is available with 1 or 2 mandrels. The two-mandrel version allows the operator to pre-load an empty core on the second mandrel while the first mandrel is winding. When winding is complete, a quick manual swap can be performed - fast manual bobbin change - dramatically reducing idle time. Each mandrel is equipped with a pneumatic mandrel for core mounting/unmounting in seconds. The dual-mandrel design is especially beneficial for frequent change-over scenarios (small coils or multiple specifications), increasing overall productivity in semi-automatic mode by 30-50%. The single-mandrel version suits cost-sensitive users with low change-over frequency.
Technical Specifications
Parameter
Specification
Model
CQ800
Number of mandrels option
1 or 2
Pneumatic mandrels
Standard per mandrel
Change-over method
Manual (fast swap)
Dual-mandrel pre-load capability
Yes (one winds, one pre-loaded)
Typical change-over time (dual)
<30 seconds
Typical change-over time (single)
<2 minutes
Winding speed
50-250 m/min
Max package outer diameter
820 mm
Strap width range
9-32 mm
Key Features
Flexible configuration - Single for economy, dual for high output - choose as needed.
Dual-mandrel fast change-over - Pre-load empty core, swap in <30 seconds.
Pneumatic mandrels standard - Mount/unmount cores in seconds.
Reduces idle time - Machine almost never waits during change-over.
Ideal for small coils - Frequent change-over scenarios see huge efficiency gains.
Simple operation - Manual swap requires no complex training.
Upgradable - Single-mandrel can be field-upgraded to dual.
Frequently Asked Questions
Q1: How much efficiency gain does dual mandrel provide over single?
A: For small coils (e.g., 300 mm OD), change-over is frequent. Dual mandrel can reduce downtime by over 50%, increasing overall output by 30-50%.
Q2: How does change-over work on the dual-mandrel model?
A: When the first mandrel finishes and stops, the operator presses the swap button. The second mandrel moves into winding position, guide the strap end quickly, and start winding. The finished coil on the first mandrel can be removed later.
Q3: Is there much strap waste during change-over?
A: Very little. The machine features a strap end catcher and pre-wrap function, consuming only about 0.5-1 meter per change.
Q4: Can a single-mandrel be upgraded to dual later?
A: Yes. The CQ800's modular design allows field addition of a second mandrel assembly, but manufacturer technical support is required.
Q5: Is the dual-mandrel model more complex to maintain?
A: Barely. Two sets of pneumatic mandrels and drives are simple and robust. There are slightly more lubrication points, but maintenance time is similar.
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...