Catalogs >
Davis Standard Extrusion Systems >
Agricultural Stretch Film

Agricultural Stretch Film
2Pages

Catalog excerpts

AGRICULTURAL STRETCH FILM OVERVIEW Davis-Standard leads the industry in experience and technology innovation on large, wide blown film systems. There is no better extruder available for high output and low melt temperature than the MAC extruder and DSBII screw. The unique extrusion concept leads to the best and most consistent melt quality (temperature uniformity to 2 degrees F and pressure variation <1%) which is necessary to get uniformity from large dies. The die systems can be oscillating up to 1.2 M diameter or stationary up to 2.1M diameter. These systems produce controlled property films at wide widths with flat rolls. Agricultural stretch films must have uniform quality and thicness to consistently secure the bales, excellent stretch properties with consistent cling levels, strong puncture resistance, high load retention for bale integrity and low oxygen and water permeability. KEY FEATURES ■ Controlled injection of PIB through valves within the screw allows for best mixing, bloom control and output rate which is critical for unvarying product quality. ■ DSB screws for superior processing of resin mix providing excellent melt homogeneity ■ MAC 30:1 smooth bore extruders for control of melt temperature and for better mixing ■ Centrex die provides excellent gauge, thermal stability and low wetted surface area ■ Oscillating nip assembly with adhesive package for release properties ■ Winder designed for small diameter reels with quick transfer

Open the catalog to page 1

Finished Product Examples Typical Output Thickness Range Materials to be Processed TECHNICAL DATA ■ AC motors and drives ■ Engineered to permit a wide range of speed and power capabilities ■ Direct coupled or belted to 100 mm size ■ Designed for greater rigidity, proved thermal capacity, longer life and quiet operation ■ Optional DRV model available for < 80 dba ■ Splash or circulating oil lubrication systems are available ■ Designed for greater rigidity, proved thermal capacity, longer life and quiet operation ■ Optional DRV model available for < 80 dba ■ Splash or circulating oil...

Open the catalog to page 2