Economic Wire Wrapping Machine for Steel Wire Coils

Executive summary The FPW-300 is a dedicated, economic orbital ring wrapping machine engineered for light steel wire, galvanised (GI) wire, and razor wire coils. Featuring an eye-to-sky vertical roll-in station, the machine allows operators to manually position coils, attach the wrapping material, and initiate a fully automated orbital wrapping cycle. Accommodating wire coils with an outer diameter of 450–850 mm and load capacities from 10 to 250 kg, the FPW-300 operates efficiently on a 1.5 kW 3-phase power supply without requiring compressed air. For coils exceeding these envelope dimensions or production loads above 250 kg, our heavier FPW-400 platform provides the corresponding industrial capacity.

Table of Contents

How the wrapping cycle works

The FPW-300 packages steel wire coils resting upright on polyurethane-coated support rollers. The rotating orbital ring shuttles packaging material through the interior eye of the coil while driven carrier rollers rotate the coil around its horizontal axis. This dual-axis motion applies a consistent, helical protective wrap across the entire toroidal cross-section.

The complete duty cycle follows six operational stages:

  1. Load: The operator rolls the upright wire coil directly into the V-shaped support roller cradle.
  2. Anchor material: The operator pulls the film or paper tail from the orbital carriage and fixes it securely to the coil circumference.
  3. Initiate cycle: Press the console start button to actuate the safety interlocks and start rotation.
  4. Orbital wrap: The inverter-driven rotating ring traverses the inner eye, wrapping the coil automatically according to preset speed and overlap ratios.
  5. Sever material: Once the preset wrap count or timer finishes, the machine stops smoothly at home position. The operator severs the packaging film manually.
  6. Unload: The operator tilts or rolls the packaged coil out of the cradle for warehousing or pallet strapping.

This continuous overlap encapsulation prevents water vapor intrusion, ambient oxidation, dust fouling, and mechanical shifting during transit.

FPW-300 wire coil wrapping machine with wrapping ring passing through the eye of an upright wire coil
FPW-300 orbital coil wrapping station. The rotating C-frame ring passes packaging media continuously through the eye of an upright wire coil.

What is manual and why

The FPW-300 balances automated orbital wrapping with manual material handling to deliver a minimal capital expenditure (CAPEX) footprint:

  • No automated conveyor network: Operators roll coils in and out by hand. This design eliminates expensive powered roll conveyors, hydraulic upenders, and safety fencing, keeping total plant floor space under 2.5 m × 1.8 m.
  • Zero compressed air requirement: Because material cutting and clamping are handled manually, the station requires no pneumatic cylinders, FRL units (filter-regulator-lubricator), or dedicated shop airline plumbing.
  • Plug-and-play commissioning: The machine ships as a pre-tested, single-skid assembly. Installation requires only anchoring and connecting a standard 3-phase electrical feed.

The core packaging motion remains fully mechanical and automated. A dedicated industrial PLC coupled with digital timing relays regulates ring travel and roller synchronization. An adjustable spring-loaded friction disc tensioner on the film dispenser maintains constant web tension, preventing film neck-down, material folding, and unspooling slack. Both manual jogging and automatic continuous wrapping modes are switch-selectable on the main panel.

Specifications

Engineering Parameter FPW-300 Specification
Coil Inner Diameter (ID) 300–700 mm
Coil Outer Diameter (OD) 450–850 mm
Coil Width (Axial Length) 100–300 mm
Maximum Coil Weight 10–250 kg
Compatible Packaging Media LLDPE stretch film, PVC film, HDPE woven tape, reinforced crepe paper
Material Roll Dimensions Core ID: 50 mm; Roll OD: 100–250 mm; Web Width: 100–120 mm
Wrap Overlap Range 10% to 90% (Infinitely adjustable via variable frequency drives)
Ring Rotation Speed 20–80 RPM (Inverter regulated)
Roller Drive Power 1.5 kW, 380 V, 50 Hz, 3-Phase (Optional 220 V / 480 V configurations)
Pneumatic Requirement 0 MPa (None)

Checking your coil size

Verify that your physical wire bundle falls completely within the boundary limits for Inner Diameter (ID), Outer Diameter (OD), cross-sectional width, and gross payload weight.

For instance, a standard galvanised binding wire coil with a 450 mm ID, 750 mm OD, 150 mm width, and an 80 kg total mass fits safely within the FPW-300 operational envelope.

       [   Coil OD (450–850 mm)   ]
   +---------------------------------+
   |       Wire Coil Body            |
   |   +-------------------------+   |
   |   |   Coil ID (300–700 mm)  |   |  <--- Ring passes through here
   |   +-------------------------+   |
   |       Width (100–300 mm)        |
   +---------------------------------+

To maintain clean concentric clearance as the orbital ring passes through the coil bore, the machine incorporates a vertically adjustable base support roller assembly. Raising or lowering this roller station centers coils of different ODs relative to the orbital ring centerline. Prior to running production runs, the operator configures:

  • Ring and roller rotational speeds via the digital dial/potentiometer.
  • Wrapping cycle duration via the main timer to achieve the desired film overlap.
  • Mechanical web tension via the dispenser friction plate.

Choosing the wrapping material

The FPW-300 handles multiple roll-based protective substrates to address distinct logistical environments:

  • LLDPE Stretch Film (15–35 µm): Delivers clean moisture and dust exclusion with high elastic recovery. Excellent for indoor warehousing and cost-effective commercial wire distribution.
  • Crepe / Kraft Paper (70–120 GSM): Recommended for export clients requiring opaque, anti-condensation packaging or automated moisture vapor absorption.
  • HDPE Woven Fabric Tape: High tear-resistance packaging for heavy steel coils, handling rough intermodal freight and overseas container transport.
  • VCI Film / Paper: Infused with volatile corrosion inhibitors to prevent surface rust and oxidation on non-galvanised high-carbon wires.

All rolls mount on standard 50 mm (2-inch) internal cores with an external roll diameter of 100–250 mm and widths of 100–120 mm.

Engineering note on razor wire: Razor coils and concertina barbed tape will shear thin LLDPE stretch films. For razor wire lines, we mandate heavy-duty HDPE woven tape or reinforced fiber-crepe paper to eliminate puncture propagation.

When to move up to FPW-400

If your production schedule demands automated mechanical cutting, or if coil physical dimensions exceed the volumetric opening of the 300-series ring, upgrade to the heavy-duty FPW-400 machine platform:

Design Criterion FPW-300 (Economic Compact) FPW-400 (Heavy-Duty Orbital)
Coil Outer Diameter (OD) 450–850 mm 600–1,200 mm
Coil Inner Diameter (ID) 300–700 mm ≥ 300 mm
Coil Width / Thickness 100–300 mm 40–400 mm
Maximum Coil Load 250 kg 400 kg
Film / Paper Web Width 100–120 mm 100–300 mm
Compressed Air Supply None (100% Electromechanical) 0.4–0.6 MPa (4–6 bar required for auto-cut)
Clamping & Cut System Manual hand cut Pneumatic mechanical clamp and hot/serrated cutter
Roller Material Heavy-duty PU coating Dual steel rollers with vulcanized PU coating
In-line Integration Standalone manual station Compatible with motorized infeed/outfeed conveyors

Selection checklist for a wire coil wrapper

  • Verify maximum and minimum coil dimensions: Outer Diameter (OD), Inner Diameter (ID), and axial width.
  • Determine gross coil weight: Confirm bundles do not exceed the 250 kg support roller limit.
  • Define protective substrate: Stretch film, VCI rust-inhibiting paper, or woven HDPE fabric tape.
  • Calculate required overlap percentage (typically 30% to 50% for standard storage; 60% to 80% for ocean freight).
  • Confirm plant floor utility access: 3-phase AC voltage (380 V / 415 V / 480 V, 50/60 Hz).
  • Determine if compressed air (0.4–0.6 MPa) is available on site if planning future migration to the FPW-400 platform.
  • Identify wire surface characteristics (smooth GI wire vs. barbed razor wire) to specify proper anti-puncture packaging media.

Engineering FAQ

Q: How do you prevent film wrinkling, folding, or tearing during the cycle? A: Web instability is governed by unwind friction and entry angle. The FPW-300 dispenser uses a mechanical spring-compressed friction plate. Operators adjust the knurled hand knob to match film thickness and coil cross-section, ensuring flat web delivery without center folding or excessive neck-down.

Q: Does the FPW-300 require a dedicated air compressor? A: No. The machine operates entirely on electrical drive motors. Manual material anchoring and manual end-of-cycle cutting eliminate all pneumatic valves, piping, and maintenance overhead.

Q: What tasks remain the responsibility of the line operator? A: The operator rolls the coil into the roller cradle, wraps the initial film tail to anchor it, presses the cycle start button, severs the media upon cycle completion, and unloads the wrapped package. Ring rotation and carrier drive are fully motorized and automated.

Q: Can the unit run reinforced paper and stretch film simultaneously? A: Yes, provided the dual-material dispenser roll carrier is selected, or by running combined two-layer composite tape (paper backed with PE) on the standard 50 mm core.

Q: Which model is required for 1,000 mm OD wire coils? A: A 1,000 mm OD coil exceeds the radial ring opening of the FPW-300. You must select the FPW-400, which handles coil outer diameters up to 1,200 mm and payloads up to 400 kg.

Next step

Our application engineering group provides direct technical validation for steel wire wrapping lines:

  1. Submit parameters: Send your minimum/maximum coil ID, OD, axial width, batch weights, and target coils-per-hour to info@fhopepack.com.
  2. Technical proposal within 48 hours: Receive a formal layout GA drawing, ring clearance calculation sheet, and fixed quotation.
  3. Application testing: Ship sample coils or material rolls to our packaging laboratory for trial testing and overlap verification.

Sources

Last reviewed: 2026-10-04

Related Posts

Book A Call
Book A Call