3 layers DMT BOPP Coextrusion Line BOPP / BOPET extrusion machine
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). |