Double edger or double edger lines with peripheral wheels
These machines are using peripheral wheels. Even is theoretically these machines can process every kind of edges they are mainly used for a round edge called "pencil edge ".
These machines are mainly for important batches and glass thickness from 3 mm up to 6 mm. They can have or not polishing wheels.
Very often the glass has small dimensions.
We find on the market machines from 3 up to 6 wheels and the more popular machine is with 4 wheels.
Double edger with 3 wheels :
Generally only diamond wheels
Double edger with 4 wheels
2 diamond wheels and 2 polishing wheels
Double edger with 4 wheels
3 diamond wheels and 3 polishing wheels
For the lines is installed between the 2 double edgers a transfer, either on line or, more frequent at 90° and the squaring device is installed on the second double edger (to have the more precise squaring the squaring device has to be installed on the machine able to process the more important glass, which means the one with the more important opening)
To be able to have an horizontal washing machine at the oulet of the double edger line with a minimum budget and only one operator to manage the line (loading and unloading) very often a second transfer is added between the double edger line and the washing machine.
Main options :
The options proposed by the main machines suppliers are very important.
Some are the following
Possibility to install several polishing wheels on the same spindle to reduce the thickness changing time.
The peripheral double edgers works mainly on 2 or 3 different glass thickness.
Motorized diamond spindles to adjust automaticaly the wheels position with the wheels wearing.
For a double edger line with 6 diamond wheels working over 10 meters per minute the diamond wheels adjustement is very frequent.
…….
Other points to have a look :
Here also there are a lot :
Easiness to change the polishing wheels
For this kind of machine you can have to change the polishing wheels every day. (A Polishing wheel can carry out between 2000 and 5000 meters glass processing).
Speed and precision for the double edger opening and closing (glass dimensions changes).
Mainly if you work on small batches.
…..
