Drainage sheet extrusion line
Drainage sheet is PE hot melts calendered by one pair of rollers with pits and protrusions and chilled down.
Drainage sheet is used for water draining. It replaces bricks and pebbles which act as filtration screen before water is drainged to the desinged location.
The drainage sheet is much lighter than bricks and pebbles which reduces load of buidings and is very easy to install,saving time and money.
Process
Feeding systems with pneumatic or helix loaders
Extruder with screen changer
Flat Extrusion Die-heads
Calender roller on which protrusions and pits are shaped
Chill rolls where extruded melt is transforme d into a film and quickly cooled down
In-line triming equipment
Sheet guiding system
Surface winding unit
Edge trim recycling system
Drainage sheet application
- flat roofs ;
- roof gardens;
- used with geotextile direct contact with the soil;
- tunnelling;
- road construction