Coil Slitting Lines

1650mm Coil Slitting Line

1650mm precision strip production

1650mm coil slitting line for controlled strip width, tension, and recoiling.

Designed around the customer coil material, strip plan, edge quality, tension requirement, recoiling condition, and production target.

The line can include coil loading, uncoiling, guiding, precision slitting, scrap winding, tension control, recoiling, and unloading. Knife arrangement, drive system, control strategy, and handling sections are reviewed for the material and finished strip requirements.

Share the incoming coil and finished strip specification so the engineering team can confirm the suitable slitting and recoiling configuration.

  • Controlled strip width and edge quality
  • Stable tension and recoiling workflow
  • Configuration matched to the material and strip plan
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Video overview

1650mm Coil Slitting Line Video

Watch the slitting process from coil handling and strip cutting through scrap management, tension control, recoiling, and unloading.

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Working principle

How the 1650mm Coil Slitting Line Works

The line unwinds a master coil, guides it through the processing centerline, separates it into narrower strips with the slitter head, manages edge scrap, controls strip tension, and recoils the finished strips. Stable results depend on the complete path from coil handling and knife setup to tension control, recoiling, and unloading.

Coil-to-Strip Production Process

The final equipment arrangement is selected for the confirmed material and finished-strip plan. A typical workflow includes these stages.

  1. Coil loadingCheck and load the master coil using the approved handling method.
  2. UncoilingSupport and release the coil into the line under controlled conditions.
  3. Entry guidingAlign the strip with the slitting centerline before the knife station.
  4. Precision slittingSeparate the master strip into the required widths using the confirmed knife setup.
  5. Scrap handlingCollect or wind the trimmed edge scrap according to the line configuration.
  6. Tension controlStabilize strip tension before recoiling to support orderly finished coils.
  7. RecoilingWind the slit strips onto the recoiler using the specified arrangement.
  8. UnloadingRemove and prepare the finished slit coils for the next handling step.

Main Slitting and Recoiling Sections

The equipment list and control method are confirmed after the incoming coil and finished-strip requirements are reviewed.

Coil car and uncoiler

Support loading, centering, expansion, and controlled payoff of the master coil.

Entry guide

Maintain strip position before the slitting section.

Slitter head and tooling

Use the selected knife, spacer, overlap, and clearance arrangement for the strip plan.

Scrap handling

Manage trimmed edge material without interfering with the finished strips.

Tension section

Control strip behavior between slitting and recoiling.

Recoiler and unloading

Build and remove finished slit coils according to the required diameter, weight, and handling method.

Line controls and safety

Coordinate drives, recipes, alarms, interlocks, and operating zones.

Engineering Decisions Behind Slit Width, Edge Quality, and Recoiling

The slitter head is only one part of the result. Tooling, strip plan, tension, surface handling, recoiling, and operating procedure must be configured as one production process.

Strip plan and line loading

Review every strip width, quantity, tolerance, scrap width, material strength, thickness, and the most demanding combination—not only the master-coil width.

Knife clearance, overlap, and spacers

Knife material, diameter, condition, side clearance, vertical overlap, spacer accuracy, and shaft alignment must match the actual material and edge requirement.

Knife changeover procedure

A controlled sequence for tooling identification, cleaning, arrangement, tightening, runout checks, trial cutting, and recordkeeping reduces setup variation.

Burr and edge quality

Burr, rollover, fracture, camber, and width consistency are influenced by material condition, tooling setup, alignment, speed, tension, and knife wear.

Speed versus material and strip count

Target speed should be checked with strength, thickness, strip count, minimum strip width, scrap behavior, tension method, recoiling, and downstream handling.

Surface-sensitive material handling

Contact rolls, guides, loop tables, separators, pads, cleanliness, and protective films may need different treatment for stainless, coated, and aluminum coil.

Tension, separation, and recoiling

The selected tension method, separator arrangement, winding torque, coil build, inner diameter, outer diameter, and unloading method must support the finished-coil requirement.

Tooling care and maintenance

Knife inspection, sharpening criteria, spacer cleanliness, shaft runout, bearing condition, lubrication, and setup records help control repeatability over time.

Material, Strip Plan, and Quality Requirements

Material capability is confirmed for each project. Knife setup, drive capacity, tension strategy, and surface protection must match the actual coil and finished-strip requirement.

  • Material grade, yield strength, coating, and surface sensitivity
  • Master coil width, thickness range, inner and outer diameter, and weight
  • Number of strips, finished widths, width tolerance, edge quality, and burr requirement
  • Finished coil inner diameter, outer diameter, weight, winding condition, and downstream handling

Information Needed to Configure the Line

A useful quotation begins with both the incoming master coil and every required finished strip. RONGXING uses this information to review tooling, tension, drives, recoiling, handling, and layout.

  • Normal and maximum coil specifications, including the most demanding combination
  • Complete strip plan with quantities, widths, tolerances, and edge requirements
  • Target production speed or output under the required quality conditions
  • Scrap handling, separator, recoiling, unloading, packaging, and workshop requirements

1650mm Coil Slitting Line FAQ

What information controls slit edge quality?

Material condition, knife material and condition, clearance, overlap, alignment, strip tension, and operating setup all affect the finished edge.

Can one knife setup cover every strip plan?

No. Knife and spacer arrangement must match the confirmed widths, number of strips, material, thickness, and tolerance requirements.

Why is tension control important?

Stable tension helps keep slit strips organized before and during recoiling; the required method depends on material and finished-coil expectations.

What should I send for a quotation?

Provide the master coil, complete strip plan, material strength, edge and width tolerance, finished coil dimensions, target output, handling method, and workshop layout.

Plan a Coil Slitting Line

Send your master-coil data and finished-strip plan so RONGXING can review the slitting, tension, recoiling, handling, and control requirements.

Get a quote