PERT Pipe Coil Wrapping Machine: Orbital Stretch Wrapping

Executive summary A PERT pipe coil wrapping machine passes stretch film through the eye of a small pipe coil on a turning ring, so the coil is covered all round — inside, outside and both faces. The FPH-200 coil wrapper takes coils of 5 to 50 kg and wraps one in 15 to 35 s. Below we set out the working cycle, the specifications, and a takt check for linking the wrapper to an extrusion line.

Table of Contents

What the machine does

The wrapper is a compact machine built around a vertical ring inside a mesh guard, with a control cabinet beside it:

  1. Load. The coil is set upright on the supportive guide rollers, with the ring passing through the coil eye.
  2. Wrap. The ring turns and carries the film roll through the eye and around the outside, while the rollers turn the coil slowly so the wrap moves round the whole coil.
  3. Finish. When the wrap is complete, the ring returns to its start position and the wrapped coil is taken out.

The machine runs in manual or automatic mode, so the operator can step through a wrap during set-up.

Cycle time

The FPH-200 wraps one coil in 15 to 35 s per coil [manufacturer rating]. Where the cycle lands in that band is set by the ring speed and the overlap chosen for the coil. The quoted band covers a full wrap; loading and unloading are added to it when you budget the station.

Because the wrap is one continuous machine cycle, the packaging step has a predictable, repeatable time for cells downstream of the winder.

How an eye-through pipe coil wrapper works

The coil stands upright on supporting guide rollers, with the ring threaded through its eye. As the ring turns, it carries the film roll through the eye and around the outside, so each turn covers the inside, the outside and both faces. At the same time, the rollers turn the coil slowly, so the wrap moves round the whole coil.

The overlap depends on the ratio of ring speed to roller speed. Both are set by inverters, and the overlap can be set from 20% to 90% [manufacturer rating]. A brake on the film roll sets the film tension. When the wrap is complete, the ring returns to its start position, so the next coil can be threaded in.

Part What it does
Wrapping ring Carries the film through the coil eye
Supportive guide rollers Hold and turn the coil
Film brake Sets the film tension
Inverters Set ring and roller speeds
Reset positioning Returns the ring to its start position
Alarm indicator Shows the error when trouble occurs

FPH-200 coil wrapper specifications

FPH-200 coil wrapper Specification
Coil ID 300 to 600 mm
Coil OD 400 to 900 mm
Coil width 50 to 200 mm
Coil weight 5 to 50 kg
Ring speed 20 to 90 r/min
Wrapping time 15 to 35 s per coil
Overlap 20% to 90%
Packing material LLDPE, PE, stretch film or PVC
Power 1.5 kW, 380 V, 50 Hz

Takt check

For an illustrative extrusion line that delivers one PERT coil every 60 s, the takt is 60 s per coil. A wrap of 15 to 35 s leaves 25 to 45 s to load and unload by hand.

With a 35 s wrap, only 25 s is left, which is tight for one operator who also cuts and removes coils. On faster lines we add an infeed and outfeed conveyor, so the operator only checks the wrap.

Selection checklist for a pipe coil wrapper

  • Coil ID and OD, against 300 to 600 mm and 400 to 900 mm.
  • Coil width and weight, against 50 to 200 mm and 5 to 50 kg.
  • Wrap material and overlap.
  • Coils per hour, against 15 to 35 s per wrap.
  • Manual loading or conveyors.

If your coils exceed that envelope — heavier, wider or larger-OD rubber and hydraulic pipe coils — the FPH-500W covers Φ300–800 mm ID, Φ600–1400 mm OD, 150–400 mm width and 20–200 kg at 3.5 kW [manufacturer rating]; model selection is confirmed per coil.

Controls and safety

Hands at the coil eye and near the turning ring are the hazard to design out. We guard the ring and let the guide rollers hold the coil, so the operator steps back before the wrap starts.

Stop, isolate and lock out the wrapper before anyone threads film, frees a coil that has stuck or reaches inside the ring guard. Use manual mode only for set-up, with the ring stopped between steps.

The standards that apply depend on the destination market. For CE markets, ISO 12100 sets the risk-assessment method, and EN 415-10 covers general requirements for packaging machines, which fixes guarding and the stop arrangement.

Engineering FAQ

Q: What coil sizes fit the FPH-200? A: Coils of 300 to 600 mm ID and 400 to 900 mm OD, 50 to 200 mm wide and 5 to 50 kg.

Q: How long does one wrap take? A: 15 to 35 s per coil, set by the ring speed and the overlap.

Q: Which films can it wrap with? A: LLDPE, PE, stretch film or PVC, with the overlap set from 20% to 90%.

Next step

We size a PERT pipe coil wrapping machine in three steps:

  1. Submit your layout drawing with the coil sizes, weights and line output, to info@fhopepack.com.
  2. Receive a proposal within 48 hours, with the wrapper model, the film plan and the cycle check.
  3. Book a site survey so we confirm the extrusion line, the loading method and the guarded ring area.

Sources

Last reviewed: 2026-10-29

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