AG Panel Roll Forming Machine User Manual | Setup, PLC Controls, Operation & Troubleshooting Guide

AG Panel Roll Forming Machine User Manual

Complete Setup, Operation, Controls and Production Guide

Introduction

This AG Panel Roll Forming Machine User Manual provides a complete guide for safely setting up, operating, and maintaining a roll forming production line used to manufacture AG panel metal roofing sheets.

The manual explains every stage of machine operation including:

loading steel coils onto the uncoiler
preparing and threading material through the machine
aligning entry guides and roll forming stations
programming panel length and panel quantities
operating PLC controls and jog functions
testing hydraulic shear cutting systems
inspecting finished panels
troubleshooting common production problems

This manual is intended for:

roll forming machine operators
agricultural building manufacturers
metal roofing factories
production supervisors
maintenance technicians

1. Machine Overview

An AG Panel Roll Forming Machine produces agricultural roofing panels from continuous steel coil. The machine gradually forms flat sheet metal into the AG panel profile using a series of roll forming stations.

Each roll station progressively shapes the material until the finished roofing profile is formed.

AG panels are commonly used in:

agricultural buildings
barns and livestock facilities
storage sheds
rural workshops
residential metal roofing

Typical Materials Processed

Common materials include:

galvanized steel
galvalume steel
pre-painted steel coil
aluminum coil

Typical Material Thickness

0.30 mm – 0.80 mm

Typical Production Speed

15 – 40 meters per minute

2. Typical Machine Layout

A typical AG panel roll forming production line includes:

Hydraulic Uncoiler
Entry Guide System
Roll Forming Stations
Encoder Length Measuring System
Hydraulic Cutoff Shear
PLC Control Panel
Runout Table or Stacker

Material flows through the machine in the following order:

Steel Coil → Entry Guides → Roll Forming Stations → Encoder → Hydraulic Shear → Finished Panels

3. Safety Before Operating the Machine

Operators must perform safety checks before starting the machine.

Pre-Start Safety Inspection

Before starting the machine ensure:

emergency stop buttons are functioning
machine guards are properly installed
no loose tools are inside the machine
hydraulic hoses show no leaks
electrical panels are closed

Required Personal Protective Equipment

Operators should wear:

safety glasses
steel toe boots
gloves for sheet metal handling
hearing protection

Important Safety Rules

never reach between rotating rolls
never remove guards while machine is running
never stand directly in front of moving sheet
stop the machine before adjustments

4. How to Load a Steel Coil onto the Uncoiler

Step-by-Step Procedure

Stop the machine completely.
Ensure uncoiler mandrel is retracted.
Lift coil using forklift or overhead crane.
Position coil in front of mandrel.
Slide coil onto mandrel.
Expand mandrel to secure coil.
Center coil evenly.
Install hold-down arm if available.
Adjust uncoiler brake tension.

What to Watch For

coil not centered
coil slipping on mandrel
excessive brake pressure
loose mandrel expansion

Incorrect loading can cause strip wandering and panel defects.

5. Preparing the Leading Edge of the Coil

Before feeding the material into the machine the coil edge must be prepared.

Procedure

Carefully remove steel banding.
Control the coil to prevent sudden expansion.
Inspect first 300–500 mm of strip.
Cut off damaged sections.
Square the leading edge.
Remove burrs if necessary.
Confirm correct paint side orientation.

Why This Step Matters

A damaged strip edge may cause:

feeding problems
roller damage
machine jams
surface scratching

6. Threading the Coil Through the Roll Forming Machine

Procedure

Open entry guides fully.
Feed strip manually into the first roll station.
Ensure strip enters straight.
Use jog mode to slowly pull strip forward.
Continue feeding through forming stations.
Guide strip through shear section.
Feed strip onto runout table.

Safety Warning

Never place hands between rotating rolls.

Use push tools when necessary.

7. Aligning and Centering the Strip

Proper strip alignment ensures consistent panel forming.

Procedure

Observe strip entering first forming station.
Adjust entry guides left or right.
Ensure strip runs parallel with machine centerline.
Maintain equal clearance between guides.
Run machine slowly to check tracking.

Signs of Misalignment

strip drifting sideways
uneven rib formation
panel twisting
panel width variation

8. Complete AG Panel Machine Setup Parameters

Before starting production the machine must be configured for the correct material and panel profile.

Material Type: Galvanized / Galvalume / Painted Steel
Material Thickness Range: 0.30 mm – 0.80 mm
Coil Width: Typically 914 – 1000 mm depending on AG panel design
Coil Weight: Up to 5 – 10 tons
Coil Inner Diameter: 450 – 520 mm
Entry Guide Clearance: Coil width + 1–2 mm
Forming Stations: 16 – 20 stations
Machine Speed (Setup): 5 – 10 m/min
Machine Speed (Production): 20 – 40 m/min

Roll Gap Setup

Roll gap should be set to:

Material thickness + 0.05 mm clearance

Example:

Material thickness = 0.50 mm
Recommended roll gap = 0.55 mm

Incorrect roll gap can cause:

incomplete rib forming
panel distortion
roller damage

9. PLC Control System Overview

Most AG panel machines use a PLC control system with touchscreen interface.

The PLC controls:

machine start and stop
panel length settings
panel quantity production
machine speed control
hydraulic shear timing
encoder measurement

10. PLC Control Panel Functions

Typical PLC functions include:

Start Button – starts machine operation
Stop Button – stops machine safely
Emergency Stop – immediate machine shutdown
Manual Mode – used for setup and adjustments
Automatic Mode – runs production automatically
Panel Length Setting – sets finished panel length
Panel Quantity Setting – sets production quantity
Production Counter – displays number of panels produced

11. Jog Mode Operation

Jog mode allows slow movement during setup.

Jog Mode Uses

threading strip through machine
aligning strip
positioning material before cutting

Jog Procedure

Switch machine to Manual Mode
Press Jog Forward
Machine moves slowly
Release button to stop

Some machines also include Jog Reverse.

12. Programming Panel Length

Procedure

Open PLC production settings screen
Enter required panel length
Confirm units
Run test panel
Measure finished panel length
Adjust encoder calibration if necessary

13. Programming Panel Quantity

Procedure

Enter required panel quantity on PLC screen
Confirm settings
Start automatic production

Machine stops automatically when target quantity is reached.

14. Encoder Length Measurement System

Panel length is measured using an encoder wheel contacting the strip.

The encoder converts strip movement into electronic pulses.

Typical Accuracy

±1 – 2 mm

Common Encoder Problems

measuring wheel slipping
debris on wheel
encoder wiring faults

15. Hydraulic Shear Operation

The hydraulic shear cuts panels based on PLC signals.

Cutting Sequence

Encoder measures programmed length
PLC activates hydraulic valve
Hydraulic cylinder drives shear blade
Panel is cut
Blade returns to starting position

16. Testing the Hydraulic Shear

Procedure

Start hydraulic system
Run machine in manual mode
Activate shear test cycle
Inspect cut quality

Check for:

clean cut edges
no burrs
correct blade movement

17. Inspecting Finished AG Panels

Operators must inspect panels during production.

Inspection Checklist

panel length
cover width
rib height
panel straightness
surface finish
cut edge quality

18. Panel Defect Troubleshooting Guide

Operators should monitor panel quality continuously during production.

Panel Twisting

Possible Causes: strip misalignment, uneven roll pressure.

Recommended Solution: adjust entry guides and inspect roll alignment.

Panel Bowing

Possible Causes: coil camber, uneven forming pressure.

Recommended Solution: inspect roll stations and adjust roll pressure.

Surface Scratches

Possible Causes: dirty rollers or metal debris.

Recommended Solution: clean rollers and entry guides thoroughly.

Panel Length Variation

Possible Causes: encoder slipping or debris on measuring wheel.

Recommended Solution: clean encoder wheel and recalibrate PLC settings.

Poor Cut Quality

Possible Causes: dull shear blades or incorrect blade clearance.

Recommended Solution: inspect and sharpen or replace blades.

19. Changing Production Speed

Procedure

Start machine at low speed
Observe strip tracking
Increase speed gradually
Monitor panel quality

Typical speeds:

Setup speed: 5 – 10 m/min
Production speed: 20 – 40 m/min

20. Machine Shutdown Procedure

Stop automatic production
Allow final panel to exit machine
Stop drive motor
Turn off hydraulic system
Secure remaining coil
Clean machine area
Record production results

21. Daily Operator Checks

Operators should check:

roll cleanliness
hydraulic oil level
encoder wheel condition
shear blade wear
unusual machine noise
loose bolts

22. AG Panel Roll Forming Machine Technical Specifications

Forming Stations: 16 – 20 stations
Material Thickness Range: 0.30 mm – 0.80 mm
Production Speed: 15 – 40 meters per minute
Drive System: Gearbox drive or chain drive
Cutting System: Hydraulic stop-cut shear
Control System: PLC control with touchscreen interface
Coil Weight Capacity: 5 – 10 tons
Coil Inner Diameter: 450 – 520 mm
Coil Width: Typically 914 – 1000 mm
Electrical Power Requirement: 380 – 480V three-phase power supply

23. Best Operator Practices

Experienced operators follow these practices:

inspect first panel carefully
maintain correct strip alignment
monitor machine continuously
keep rollers clean
stop machine immediately if abnormal noise occurs

Proper operation ensures consistent panel quality and long machine life.