Automatic Cable Coil Wrapping Machine with Synchronized Logo Tape In-Feed: Engineering Guide and Sizing Principles

Executive summary

In secondary cable and wire packaging, surface brand integrity is as critical as moisture protection. Standard exterior self-adhesive labels peel during warehouse transit, while custom pre-printed stretch film requires cost-prohibitive print runs for low-volume, high-mix wire batches. Our horizontal-ring cable coil orbital wrapping machine integrates an independent, synchronous printed logo tape dispensing module directly onto the rotating shuttle ring. By interleaving standard clear stretch film with a branded polymeric ribbon in a single automated orbital cycle, the logo is permanently encapsulated within or bonded to the packaging structure at minimal consumable expense.

The machine operates as an autonomous packaging cell integrated into continuous wire extrusion and coiling lines. Controlled via a Siemens touch-screen HMI with PLC motion coordination, the station utilizes heavy-duty polyurethane drive rollers to support and rotate the cable coil through the orbital ring aperture, delivering a structurally encapsulated, forklift-ready package.

Table of Contents

Conventional methods for branding coiled wire and electrical cables present distinct operational compromises:

  1. Post-Wrap Manual Labeling: Applying adhesive labels after wrapping adds a secondary labor station. These surface labels routinely shear off, wrinkle, or detach under ambient humidity and physical scuffing during palletization.
  2. Full-Width Pre-Printed Stretch Film: Printing brand artwork across the entire stretch film web demands large minimum order quantities (MOQ) per stock keeping unit (SKU), ties up operational capital, and distorts the logo graphics when subjected to 150%–250% mechanical pre-stretch.

Feeding an un-stretched, narrow printed BOPP or PE logo tape (typically 30–50 mm wide) synchronously with standard commercial clear stretch film (LLDPE) solves both issues. The brand ribbon remains dimensionally stable, artwork clarity is preserved, roll swap time is under two minutes, and consumable packaging costs drop significantly compared to specialty printed webs.

Logo tape path and layer order

The rotating orbital ring accommodates two separate reel brackets: one for the stretch film dispenser and one for the logo tape core holder. Both media traverse the internal eye of the cable coil on every ring rotation. The mechanical offset between the two payout positions dictates the lamination order:

  • Top Layer (Tape Outside the Film): The logo ribbon feeds on the trailing side of the film dispenser, depositing the logo directly on the outer circumference for maximum print vibrancy. This configuration is suitable for dry, rapid-turnaround distribution.
  • Interleaved Layer (Tape Under Clear Film): The tape feeds on the leading side of the film dispenser. The subsequent layer of clear stretch film encapsulates the printed tape against the cable surface. This shields the printed surface from abrasive pallet rub, moisture, and chemical exposure while preserving barcode scan readability.

Because printed BOPP tape has an elongation at break below 20%, whereas LLDPE stretch film undergoes continuous mechanical elongation, the tape must not share the primary film tension brake. The logo tape carriage utilizes an independent magnetic powder brake (rated up to 25 N·m) with adjustable potentiometer control, preventing web stretch, optical distortion, and mechanical snap.

Wrapping sequence

  1. Coil In-Feed: The coiled wire is positioned onto the twin polyurethane-coated drive and support rollers. Pneumatic side guide rollers adjust automatically to constrain coil axial runout.
  2. Web Clamping: Pneumatic grippers hold the leading tails of both the stretch film and the logo tape against the starting edge of the coil mandrel.
  3. Orbital Acceleration: The drive ring accelerates smoothly via inverter control, guiding the synchronized film and logo tape through the central eye of the coil.
  4. Rotational Indexing: The bottom drive rollers rotate the coil around its horizontal centerline. The proportional speed ratio between the ring drive motor and roller drive motor establishes the programmed overlap percentage.
  5. Auto-Cut and Wipe: Upon completion of the preset rotation count, pneumatic scissors sever both webs cleanly. A pneumatic wipe-down brush presses and secures the film tail against the wrapped outer perimeter.
  6. Ejection: The wrapping cradle tilts or opens its side guides, clearing the branded coil for downstream gravity discharge, weighing, or palletizing.

Machine data

Parameter / Model FPCA-200 FPCA-300 Unit
Coil Inner Diameter (ID) 150–400 250–510 mm
Coil Outer Diameter (OD) 250–500 400–900 mm
Coil Width / Height (W) 80–200 60–300 mm
Coil Weight Capacity 2–50 20–200 kg
Orbital Ring Speed 10–120 10–90 RPM
Cycle Time per Coil 20–30 20–38 s
Film Overlap Range 20–80 (adjustable) 10–90 (adjustable) %
Installed Power 2.0 2.4 kW
Compressed Air Supply 0.5–0.7 0.5–0.7 MPa

An integrated optoelectronic sensor tracks film and tape payout. If either consumable snaps or runs out, the control system initiates a controlled deceleration stop and triggers an HMI alarm, preventing incompletely wrapped coils from exiting the station.

Wrap time and tape length

To determine line throughput and consumable consumption during line engineering, apply the kinematic formulas below.

1. Required Ring Rotations (N_ring)

The total number of orbital passes needed to achieve full circumferential cover at a defined overlap:

N_ring = (π × OD) ÷ (W_film × (1 − Overlap_ratio))

2. Theoretical Wrap Cycle Time (t_cycle)

Accounting for steady-state ring rotation speed (RPM_ring) and machine ramp times:

t_cycle = (N_ring ÷ RPM_ring) × 60 + t_handling

(Where t_handling represents in-feed, clamping, cutting, and acceleration ramp, typically 6–10 seconds).

3. Logo Tape Consumption per Coil (L_tape)

When the logo tape is applied continuously throughout the wrapping sequence:

L_tape = N_ring × 2 × (Coil_Width + (OD − ID) ÷ 2)

Engineering Example

  • Cable Coil: OD = 400 mm, ID = 200 mm, Width = 100 mm
  • Consumables: Film width W_film = 60 mm, Overlap = 50% (Overlap_ratio = 0.50), Ring Speed = 120 RPM

Calculation:

  • Effective advance pitch per revolution = 60 × (1 − 0.50) = 30 mm
  • Coil circumference = π × 400 ≈ 1,257 mm
  • Required ring wraps N_ring = 1,257 ÷ 30 ≈ 42 wraps
  • Payout per revolution = 2 × (100 + (400 − 200) ÷ 2) = 400 mm = 0.4 m
  • Total logo tape per coil = 42 × 0.4 m = 16.8 m
  • Active wrapping duration = (42 ÷ 120) × 60 = 21 seconds

Selection checklist

  1. Dimensional Envelope: Complete range of coil ID, OD, width, and bundle weight.
  2. Target Throughput: Required coil output per hour to match upstream extrusion or coiler rates.
  3. Tape Specifications: Tape material (BOPP/PE/PVC), core diameter (76 mm standard), web width (30–60 mm), and roll OD.
  4. Encapsulation Architecture: Determine whether tape must sit directly on the product face or beneath the clear outer protective film layer.
  5. Peripheral Line Integration: Requirement for automated in-feed indexing conveyors, inline check-weighing, or thermal transfer barcode overprinting.
  6. Material Handling: Manual station loading vs. integration with continuous robotic overhead drop-gate coilers.

Safety

Machinery engineering complies fully with European Harmonized Standards and OSHA industrial machine safety requirements:

  • Risk Assessment & Ergonomics: Designed according to EN ISO 12100:2010 to eliminate mechanical pinch points.
  • Packaging Machinery Safety: Built to EN 415-10:2014 specifications for wrapping machinery, featuring interlocked transparent perimeter guarding to protect operators from orbital hazards.
  • Electrical Architecture: Implemented according to EN 60204-1:2018, equipped with Cat 4 / PL e safety circuit relays, standard dual-channel emergency stop buttons at loading consoles, and lockout-tagout (LOTO) pneumatic isolation dump valves.

Engineering FAQ

Q: Does feeding the logo tape synchronously reduce machine cycle times? A: No. The logo tape payout runs parallel with the film carriage on the same orbital ring assembly, requiring zero auxiliary dwell time during the wrapping cycle.

Q: Can line operators swap logo branding between different production batches quickly? A: Yes. The tape core features a quick-release pneumatic or mechanical hub. Changing tape rolls takes less than two minutes without tools or re-threading the primary stretch film path.

Q: Will optical scanners read barcodes printed on tape encapsulated beneath the film? A: Yes, provided standard cast or blown transparent LLDPE film without tint additives is applied at proper wrapping tension, leaving no air blisters or optical haze.

Q: How does the machine handle tape roll depletion during an automated run? A: The non-contact optic break sensor flags the loss of web tension immediately, stopping the orbital ring and keeping the incomplete coil safely in position until replenishment.

Next step

  1. Submit Product Data: Send your coil dimensional envelope (ID, OD, Width, Weight), cycle targets, and tape sample specs to info@fhopepack.com.
  2. Application Engineering: Our mechanical design group validates ring aperture clearances, orbital gear ratios, and tension brake sizing.
  3. Proposal Turnaround: Receive an engineering GA layout drawing, full technical specification matrix, and formal quotation within 24 hours.

Sources

  • FHOPE Packaging Machinery: FPCA-Series Cable Coil Wrapping Technical Product Portfolios.
  • FHOPE Technical Field Archives: High-Speed Synchronous Logo Taping Systems & Dual-Web Break Detection.
  • Standard Standards referenced: EN ISO 12100:2010 (Safety of Machinery); EN 415-10:2014 (Packaging Machines Safety); EN 60204-1:2018 (Safety of Machinery – Electrical Equipment).

Last reviewed: 2026-10-20

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