Blown film industry manufacturers gain competitive advantages with Berg energy-efficient Blown Film Coolers (BFC). Berg BFCs increase product output and quality while reducing costs and downtime. Every custom-engineered Berg Blown Film Cooler provides consistent all-season performance by precisely controlling the temperature, pressure, and quality of air supplied to the film bubble. Rugged Berg BFCs can be optimized for any blown film extrusion application, meeting or exceeding all industry requirements.
Plastics extrusion is a high-volume manufacturing process in which raw plastic is melted and formed into a continuous profile. Extrusion produces items such as pipe/tubing, weatherstripping, fencing, deck railings, window frames, plastic films and sheeting, thermoplastic coatings, and wire insulation.
Cooler sizing and maintenance can have a big impact on the efficiency of a blown film manufacturing process.
Blown film coolers are used to produce bags, liners and industrial, barrier, stretch, laminated, agricultural and construction type films. Integral pieces of the blown film equipment, these coolers provide uniform cool air to the internal and external film bubble to change the plastic from a molten to a solid state. They are used in conjunction with a blower and a chilled water supply. The blower provides ambient air at a specific static pressure, moving it through the blown film cooler and into the air ring. The chilled water supply enters the system, absorbs heat from the ambient air and then is returned to the cold-water source. The proper sizing, control, startup procedures and maintenance are imperative to ensure that all of these components function correctly and efficiently.