Window profile marking on a conveyor
Synchronised with a variable extruder speed. The solution was rolled out across the whole plant.

Line components
What goes on an extrusion line
Sync with variable speed
The extruder runs unevenly, so timer marking drifts. Measuring rollers read the actual web speed and the code lands exactly where it should.
CCD positioning
The camera finds the item or a reference mark, calculates coordinates and tilt angle and passes them to the control system — the code lands straight even if the profile runs offset.
A unit above the conveyor
The marking module mounts above the existing line. Neither the plant layout nor the conveyor mechanics need changing.
Rolling out to neighbouring lines
A unit designed once is then repeated on other lines: at a window profile plant that covered nine lines.
Why us
Why profile makers come to us
Extrusion runs at a floating speed, and off-the-shelf timer marking simply does not work here. We build a unit for one line and then repeat it on the neighbours — that is how nine lines came about.
Our own workshop
We make mounts and non-standard assemblies ourselves — no waiting for a supplier and no bending your line to fit an off-the-shelf solution.
Own software
PPKLink and PPKVision are ours. 1C integration needs no outside developers.
One contractor
Design, supply, installation, commissioning and shift training in one pair of hands — no passing the buck.
Since 2017
Official Chestny Znak partner. The PPK LASER group has been working since 2013 and serves over 1,000 corporate customers.
Videos from lines
How it looks in operation
All 17 clips on one page — from live lines and from the software
FAQ
Answers before the call
What if the extruder speed fluctuates?
It always floats — that is what the synchronisation is for. The rollers read the actual web speed and the code lands in place. A timer will not do: it drifts.
How long does installation take on one line?
The unit above the window profile conveyor was installed in six hours during a shift change. Installation happens in an agreed planned window and the line does not stand idle beyond the norm.
Does the marking rub off during pulling and packing?
The laser changes the material itself rather than laying paint on top, so the code does not rub off during pulling. The line footage shows this separately.
Can the same units be added to neighbouring lines later?
Yes. At a window profile plant the solution was scaled to nine lines, and not one stood idle beyond the norm.
Nearby
What to read next
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