Typical Garage Door Track Line Process Flow

1. Process purpose

Convert coil into punched, formed, cut-to-length garage door track / bottom-rail profiles for sectional and related door hardware. This page is a process map — speeds, kW, stand counts, and thickness bands stay on the garage-track host page.

2. Route steps (punched-track reference)

1. Manual decoil — about 3 t passive class on the punched-track reference
2. Level / straighten — prepares strip for punch accuracy
3. Feed punch — mounting / slot pattern while strip is still flat; suggested about 3 punch stations on the reference
4. Roll form — multi-stand host shapes U / J / angle track
5. Measure length — encoder / PLC length control
6. Hydraulic cut-to-length
7. Exit / run-out table — about 3 m class on the packing list

Industry track overviews describe the same spine: decoil → (level) → punch / slot → form → cut — with optional bending handled as a later or off-line step.

3. Why punch before form

Mounting holes and notches are easier and more accurate on flat strip. Punching after forming risks distortion and poor hole location on already bent flanges. Keep punch maps on the track drawing; do not invent hole pitches on this process page.

4. Configuration notes

5. What this flow is not

• Not a shutter / roll-door slat forming route
• Not a door-frame punch-and-form plant
• Not a PU / sectional door panel continuous foam line
• Not a place to publish host kW / m/min as if this page were the datasheet

6. Buyer FAQ

Where do 0–20 vs 0–15 m/min belong?

On the host page / named proposal — punched-track versus J-type comparison scheme. This flow page does not lock a single speed.

Is the rail bender in the continuous route?

Usually no. Treat it as optional off-line unless the named proposal puts bending in-line.

Why list punch before the mill?

Because the documented punched-track route and common industry practice punch flat strip for mounting accuracy.

Can I copy this flow for a foam door panel RFQ?

No. Panel / foam lines add skins, embossing, and foam stations — different family.