3 layers DMT BOPP Coextrusion Line BOPP / BOPET tenderframe plant

Biaxially oriented polypropylene (BOPP) and Biaxially oriented polyester (BOPET) are commonly produced in tender-frame lines. In these lines material is melted through a flat extrusion die (T-die) and solidified onto a cooled roller. Material is then stretched in machine direction in an MDO. Thereafter material is stretched in transversal direction in a TDO. These processes deliver a molecule orientation in both axes, this enhances many of their properties, particularly the mechanical, impact, barrier and optical properties.

Machine Code	BO58
Manufacturer	DMT
Model	BOPP Coextrusion Line
Year	2002
Number of layers	3
Material	BOPP
Width (mm)	6800
Extruder 1 Description	Manufacturer: Davis Standard, co-extruders with max output 150 kg/hr and 200 kg/h DC drive - 02 Co extruder motors Stand by L/D 30:1 Included with double filters with surface area: 0.81m2/unit
Extruder 2 Description	Cascade main extruder TM 133 MW, 2800 kg/h, Melt pump Manufacturer: Maag AC drive Main filter: L.666 Surface area: 6.36 m2
Extruder 3 Description	Co extruders, Manufacturer: Davis Standard, 2 co-extruders with max output 150 kg/hr and 200 kg/h DC drive - 02 Co extruder motors Stand by L/D 30:1 Included with double filters with surface area: 0.81m2/unit
MDO description	14 pre-heating rolls - Electrical heaters; 4 stretching rolls - Circulating oil; 2 annealing rolls - Electrical heaters; 5 nip rolls; AC drive; Stretching ratio 1:1 - 1:6
TDO description	Chain and chain track System; Heating system: circulating air via individual heating system / zone (Electrical heater, motors, fans, sensor, etc) Edge guide system at inlet
Pull roll unit	Cromed Rolls chilled by water; Edge trim on-line recycling unit; 2 corona treatment stations (up and down - Double treated) AC drive Thickness Gauge X-ray: - Measurement range: 5 - 100 micron
Rewinder description	Turret Automatic change
Slitter	Slitter and Rewinder: - Atlas Slitter and Rewinder 6.8 m (1000 m/min - CW964) 10 "Stations"
Additional information	Max mechanical speed: 280 m/min Edge recycling system Pneumatic conveying system Cyclone to separate resin and conveying air Metal separator Mixing hopper Suction conveying for Co-Extruder Edge trim recycling Edge trim grinder Conveying fans Recycling System - Erema 500 kg/h RM 80T Utilities: - Compressor, Boiler, Silos, Mill Rolls, Mill Roll Stands (corona and nip), Nip rolls stands, Over Head Crane (10 TM).