Recoiler Operation Manual | Setup, Coil Winding, Tension Control & PLC Guide

Recoiler Operation Manual

Complete Setup, Operation, Controls and Production Guide

Introduction

This Recoiler Operation Manual provides a complete guide for safely setting up, operating, and maintaining a recoiler used to wind processed strip into coils.

Recoilers are essential in:

• slitting lines
• cut to length lines (for trim or scrap)
• roll forming lines (optional)
• coil processing systems
• steel service centers

They are used to:

• rewind slit strip into coils
• maintain proper strip tension
• ensure tight and uniform coil formation
• prepare material for storage or transport

Typical materials processed:

• galvanized steel
• cold rolled steel
• stainless steel
• aluminum

This manual explains:

• setting up the recoiler mandrel
• threading strip into the recoiler
• controlling winding tension
• operating PLC and drive systems
• ensuring correct coil build
• troubleshooting common issues

This manual is intended for:

• machine operators
• coil processing technicians
• roll forming factories
• steel service centers
• maintenance teams

1. Machine Overview

A Recoiler winds processed strip into tight, uniform coils after slitting or processing.

The recoiler must:

• maintain consistent tension
• keep strip aligned
• produce evenly wound coils

Types of recoilers include:

• single mandrel recoilers
• expanding mandrel recoilers
• overarm separator recoilers
• motorized recoilers

Typical Coil Weight Capacity

1 ton – 30 tons

Typical Coil Width

20 mm – 2000 mm (depending on application)

Typical Line Speed

30 – 150 meters per minute

2. Typical Recoiler Components

A standard recoiler includes:

• Expanding Mandrel
• Drive Motor
• Gearbox
• Tension Control System
• Overarm Separator (for slitting lines)
• Control Panel (PLC)
• Base Frame

Material flow:

Processed Strip → Tension System → Recoiler → Finished Coil

3. Safety Before Operating the Recoiler

Pre-Start Safety Checks

Ensure:

• emergency stops are functional
• mandrel is secure
• guards are installed
• hydraulic systems are stable
• working area is clear

Required PPE

• safety glasses
• gloves
• steel toe boots
• hearing protection

Critical Safety Rules

• never touch rotating coil
• keep clear of strip edges
• never operate without guards
• stop machine before adjustments

4. Preparing the Recoiler Mandrel

Procedure

1. Retract mandrel
2. Inspect mandrel condition
3. Ensure expansion system is working
4. Clean mandrel surface

What to Watch For

• worn mandrel segments
• uneven expansion
• damage to surface

5. Threading Strip into the Recoiler

Procedure

1. Feed strip from upstream machine
2. Guide strip to recoiler
3. Insert strip into mandrel slot or clamp
4. Secure strip end
5. Rotate mandrel slowly

Important Note

Ensure strip is securely attached before starting automatic operation.

6. Mandrel Expansion and Coil Start

Procedure

1. Expand mandrel
2. Grip strip firmly
3. Start rotation slowly
4. Begin coil build

What to Watch For

• slipping strip
• uneven winding
• loose coil start

7. Tension Control Setup (CRITICAL STEP)

Proper tension ensures tight and uniform coils.

Procedure

1. Start with low tension
2. Increase gradually
3. Monitor coil tightness
4. Adjust based on material

Signs of Incorrect Tension

Too High:

• strip stretching
• coil deformation

Too Low:

• loose coils
• telescoping

8. Aligning Strip During Recoiling

Procedure

1. Ensure strip enters straight
2. Adjust guides or separators
3. Monitor coil edges
4. Maintain even winding

Signs of Misalignment

• uneven coil edges
• strip wandering
• coil cone shape

9. PLC and Drive System Overview

The PLC system controls:

• recoiler speed
• tension control
• synchronization with line
• safety systems

10. Control Panel Functions

Start / Stop
Emergency Stop
Manual Mode
Automatic Mode
Speed Control
Tension Adjustment

11. Jog Mode Operation

Used for:

• positioning strip
• starting coil
• setup adjustments

12. Running the First Coil

Procedure

1. Start at low speed
2. Wind initial wraps
3. Inspect coil build
4. Adjust tension
5. Increase speed gradually

13. Monitoring During Operation

Operators should monitor:

• coil tightness
• strip alignment
• tension consistency
• machine vibration

Warning Signs

Stop machine if:

• coil becomes loose
• strip misaligns
• unusual noise occurs
• coil telescopes

14. Removing Finished Coil

Procedure

1. Stop machine
2. Secure coil
3. Retract mandrel
4. Remove coil using crane
5. Prepare for next coil

Safety Note

Always secure coil before removal to prevent collapse.

15. Inspecting Finished Coils

Inspection checklist:

• coil tightness
• edge alignment
• surface condition
• coil shape

16. Common Recoiler Problems and Solutions

Loose Coil
Cause: low tension
Solution: increase tension

Telescoping Coil
Cause: misalignment
Solution: adjust guides

Strip Slipping
Cause: poor mandrel grip
Solution: re-expand mandrel

Uneven Edges
Cause: alignment issue
Solution: adjust entry

17. Daily Operator Checks

Operators should check:

• mandrel condition
• drive system
• tension system
• hydraulic system
• machine noise

18. Recoiler Troubleshooting Guide

Tension Problems
Adjust tension system

Alignment Issues
Adjust guides

Mechanical Noise
Inspect bearings

Drive Issues
Check motor and gearbox

22. Recoiler Technical Specifications

Coil Capacity: 1 – 30 tons
Coil Width: 20 – 2000 mm
Line Speed: 30 – 150 m/min
Drive System: AC motor / gearbox
Expansion Type: Hydraulic mandrel
Control System: PLC touchscreen
Tension Control: Mechanical / hydraulic / electronic
Electrical Requirement: 380 – 480V three-phase

23. Best Operator Practices

• secure strip properly before starting
• maintain correct tension
• monitor coil build continuously
• ensure proper alignment
• stop machine if defects occur

Proper operation ensures tight coils, safe handling, and high-quality output.