820 mm Max Package OD PET Strap Automatic Winding Machine Winder – 9–32 mm Width
Product Overview
The CQA800F fully automatic PET strap winder produces finished packages with a maximum outer diameter of 820 mm and handles strap widths of 9-32 mm. The extra-large coil significantly reduces change-over frequency for end users, making it ideal for large-scale automatic strapping lines, export packaging, and other applications requiring long PET strap lengths.
With a large 406 mm mandrel (customizable), each coil holds more strap length, reducing labor costs for change-over. The machine uses dancer constant tension with dual servo motors to ensure uniform density from core to outer layer. Integrated automatic film wrapping and flip discharge protect the finished coil and facilitate conveyance. Winding speed 50-250 m/min, traverse length 50-200 mm adjustable - covering multiple specifications.
Technical Specifications
| Parameter |
Specification |
| Model |
CQA800F |
| Maximum package outer diameter |
820 mm |
| Strap width range |
9 - 32 mm |
| Mandrel diameter |
406 mm or customized |
| Winding speed |
50 - 250 m/min |
| Maximum pick-up speed |
350 m/min |
| Traverse length |
50 - 200 mm (adjustable) |
| Tension control |
Dancer constant tension + dual servo |
| Automatic functions |
Film wrapping, flip discharge, core feeding |
| Measurement modes |
Weight, length |
Key Features
- 820 mm large diameter - Holds 2-2.2* the length of a typical 500 mm coil
- Wide width coverage - 9-32 mm, from light-duty to heavy-duty PET straps
- Fewer downstream change-overs - Automatic strapping lines run longer, improving efficiency
- 406 mm large core - Standard for heavy-duty PET straps; customizable
- Uniform tension inner to outer - Dancer + dual servo ensures large coil quality
- Automatic film wrapping - Dust protection, anti-loosening, improves product appearance
- Suitable for multi-line production - 1-out-of-6 or 1-out-of-8 lines, robot-compatible
Frequently Asked Questions
Q1: How much more strap length does an 820 mm OD coil hold compared to a typical 500 mm coil?
A: With a 406 mm core, the cross-sectional area of an 820 mm OD coil is about 2.2 times that of a 500 mm OD coil, so length is roughly 2.2 times longer. For example, a 500 mm coil might hold 500 meters, an 820 mm coil can hold over 1100 meters.
Q2: Does the 9-32 mm width range cover all common specifications?
A: Yes. From 9 mm narrow hand strapping to 32 mm heavy-duty petrochemical strapping, all are covered.
Q3: How is the large coil removed from the machine?
A: The machine automatically flips the finished coil onto the roller conveyor below, which then carries it out - no manual handling required.
Q4: Do I need to reduce winding speed for 820 mm coils?
A: No. The machine can complete the entire winding process at 250 m/min linear speed; the spindle speed automatically decreases as the diameter grows.