Oscillate winding (sometimes referred to as traverse winding) is the process of combining narrow slit strip to a create a coil that has significantly more linear footage than a traditional slit product. The methodology behind the creation of an oscillate is relatively simple. An oscillate wound coil is the result of welding several slit coils (also called slit-to-width coil) together, end to end, coiling them into a single coil. During this process, the coils are wound like fishing line to create a finished product that allows multiple coils to be combined into one compact coil.

In a typical slit coil operation, the material would be wound on top of the strip, with even edges. There is a limit to how large of an outer diameter (OD) can be produced as these slit coils, sometimes referred to “ribbon wound” or “pancake coils”, have dimensional requirements to be able to handle them safely.

When creating an oscillate coil, the strip lays next to each lap creating the ability to have a finished coil that can be up to ten times the linear footage of a ribbon wound coil and can be handled in a safe manner. Due to the increased linear footage, our customers experience significantly longer run times between change overs. In addition, there is a significant reduction in head and tail scrap.

Rolled Metal Products uses welding equipment to provide a fully functional weld within your gauge tolerance to ensure manufacturing integrity. We can mark the welds to ensure you know where they are located within the oscillate coil. A finished oscillate coil is processed using material from the heat and mill coil runs, providing a consistent product throughout.

Rolled Metal Products Oscillate Winding Capabilities

Thickness 0.003" / 0.125"
Width 0.125" / 1.875"
Max OD 40"
Recoiler ID 16", 20", 5” bore reel

Rolled Metal Products can produce oscillate wound coils in a variety of inside diameters, widths and packaging combinations that will accommodate most standard uncoiler configurations and coil handling equipment.


There are significant benefits that oscillate coils offer including: fewer changeovers, reduced scrap, less material handling, consistent quality, and overall improved productivity for your operation. Below is an example of how oscillate coils can offer you cost savings using these assumptions:


  • Number of shifts/day: 1
  • Ribbon wound coils used/shift: 20
  • Changeover time: 10 min/coil or 200 min/shift
  • Labor rate: $15.00/hr
  • Cost of coil changeover: $50.00/shift, $250/week, $1,000/month

Assuming one oscillate coil = 10 ribbon wound coils:

  • Coil changeover time: 10 min/coil or 20 min/shift
  • Labor rate: $15.00/hr
  • Cost of coil changeover: $5.00/shift or $25/week, $100/month.

Cost of labor savings in a month:


  • Heads & Tails Scrap loss/coil: 5 lbs
  • Number of coils processed/shift: 20
  • Scrap loss: 100 lbs/day
  • Material cost minus scrap value: $1.00/lb
  • Total scrap loss: $100/day, $500/week, $2,000/month

Using oscillate coils:

  • Heads & Tails Scrap loss/coil: 5 lbs
  • Number of coils processed/shift:  2
  • Scrap loss: 10 lbs
  • Material cost minus scrap value:  $1.00/lb
  • Total scrap loss:  $10/day, $50/week, $200/month

Scrap savings in a month:

Total savings of choosing oscillate wound coils over ribbon wound in this example:

$2,700/month or $32,400 annually

Rolled Metal Products can help you estimate the savings you can realize based on actual, factual data from your company.
Please contact us for details: